Enhancement for type#1 force-confirmation trigger.

.gitignore

@@ -1,3 +1,5 @@
+.vs
+**/.vs
 battle_srv/test_cases/test_cases
 battle_srv/test_cases/tests
 *.pid

README.md

@@ -1,21 +1,21 @@
 # Preface 
 
-This project is a demo for a websocket-based rollback netcode inspired by [GGPO](https://github.com/pond3r/ggpo/blob/master/doc/README.md). As lots of feedbacks ask for a discussion on using UDP instead, I tried to summarize my personal opinion about it in [ConcerningEdgeCases](./ConcerningEdgeCases.md) -- not necessarily correct but that's indeed a question to face :)
+This project is a demo for a websocket-based rollback netcode inspired by [GGPO](https://github.com/pond3r/ggpo/blob/master/doc/README.md). 
+
+As lots of feedbacks ask for a discussion on using UDP instead, I tried to summarize my personal opinion about it in [ConcerningEdgeCases](./ConcerningEdgeCases.md) -- **since v0.9.25, the project is actually equipped with UDP capabilities as follows**.
+- When using the so called `native apps` on `Android` and `Windows` (I'm working casually hard to support `iOS` next), the frontends will try to use UDP hole-punching w/ the help of backend as a registry. If UDP hole-punching is working, the rollback is often less than `turn-around frames to recover` and thus not noticeable, being much better than using websocket alone.
+- If UDP hole-punching is not working, e.g. for Symmetric NAT like in 4G/5G cellular network, the frontends will use backend as a UDP tunnel (or relay, whatever you like to call it). This video shows how the UDP tunnel performs for a [Phone-4G v.s. PC-Wifi (viewed by PC side)](https://pan.baidu.com/s/1wdUTvRiyrTLWy7mF6G7uyQ?pwd=icmp). 
+- Browser vs `native app` is possible but in that case only websocket is used.
 
 The following video is recorded over INTERNET using an input delay of 4 frames and it feels SMOOTH when playing! Please also checkout these demo videos
-- [source video of the first gif](https://pan.baidu.com/s/1ML6hNupaPHPJRd5rcTvQvw?pwd=8ruc) 
-- [phone v.s. PC over internet battle#1](https://pan.baidu.com/s/1NuGxuMwrV_jalcToyUZPLg?pwd=kfkr) 
-- [phone v.s. PC over internet battle#2](https://pan.baidu.com/s/1kMiFdwDHyJpZJ0GGU1Y3eA?pwd=46gd) 
-- [PC Wifi viewing Phone 4g](https://pan.baidu.com/s/1PJEtC9iB_fcabMWhbx2oAg?pwd=tp7k) 
-- [PC Wifi viewing Phone Wifi (over internet of course)](https://pan.baidu.com/s/108rvC1CcUdiQeMauXWsLJg?pwd=mn39) 
+- [source video of the first gif (earlier version)](https://pan.baidu.com/s/1ML6hNupaPHPJRd5rcTvQvw?pwd=8ruc) 
+- [source video of the second gif (added turn-around optimization & dashing)](https://pan.baidu.com/s/1isMcLvxax4NNkDgitV_FDg?pwd=s1i6) 
 
 to see how this demo carries out a full 60fps synchronization with the help of _batched input upsync/downsync_ for satisfying network I/O performance.
 
 ![gif_demo_1](./charts/internet_fireball_explosion_wallmove_spedup.gif)
 
-![gif_demo_2](./charts/jump_sync_spedup.gif)
-
-All gifs are sped up to ~1.5x for file size reduction, kindly note that animations are resumed from a partial progress!
+![gif_demo_2](./charts/internet_dash_turnaround_cut_spedup.gif)
 
 # Notable Features
 - Backend dynamics toggle via [Room.BackendDynamicsEnabled](https://github.com/genxium/DelayNoMore/blob/v0.9.14/battle_srv/models/room.go#L786)
@@ -111,3 +111,40 @@ Moreover, in practice I found that to spot sync anomalies, the following tools a
 - Detection of [prediction mismatch on the frontend](https://github.com/genxium/DelayNoMore/blob/v0.9.19/frontend/assets/scripts/Map.js#L842).
 - Detection of [type#1 forceConfirmation on the backend](https://github.com/genxium/DelayNoMore/blob/v0.9.19/battle_srv/models/room.go#L1246).
 - Detection of [type#2 forceConfirmation on the backend](https://github.com/genxium/DelayNoMore/blob/v0.9.19/battle_srv/models/room.go#L1259).
+
+There's also some useful information displayed on the frontend when `true == Map.showNetworkDoctorInfo`.
+![networkstats](./charts/networkstats.png)
+
+### 2.3 WIN32 platform tool versioning
+![visual_studio](./charts/VisualStudioSetup.png)
+When building for native platforms, it's much more convenient to trigger the CocosCreator project forming frmo CLI, e.g.
+```
+shell> cd <proj-root>
+shell> /path/to/CocosCreator.exe --path ./frontend --build "platform=win32;debug=true"
+```
+
+### 2.4 CococCreator native build reloading
+CocosCreator doesn't have perfect file cache management during native project building, use "Developer Tools > Reload" to reset the IDE status upon mysterious errors.
+![ccc_reload](./charts/NativeBuildReload.png)
+
+Another issue is with the package name, see the screenshot below, kindly note that after successfully building with a blank package name, you can then re-fill the desired package name and build again! 
+![ccc_package_name](./charts/PackageNameIssueInCcc.png)
+
+### 2.5 Checking UDP port binding result
+__*nix__
+``` 
+netstat -anp | grep <your_port>
+``` 
+
+__Windows__
+``` 
+netstat -ano | grep <your_port>
+``` 
+
+### 2.6 Checking native code crash on non-rooted Android phone 
+```
+DeveloperOs> adb bugreport ./logs.zip
+# The file "logs.zip" will be automatically pulled to current folder of the DeveloperOS, copy "logs/FS/data/tomestones" out of the zip, then use the binary "$NDK_ROOT/ndk-stack" to analyze whichever tombstone you're interested in, for example, I often use the following
+DeveloperOs> ${NDK_ROOT}/ndk-stack.cmd -sym \path\to\DelayNoMore\frontend\build\jsb-link\frameworks\runtime-src\proj.android-studio\app\build\intermediates\ndkBuild\debug\obj\local\arm64-v8a -dump \path\to\tombstones\tombstone_03  
+# The param "-sym \path\to\objs" tells "ndk-stack" to decode "tombstone_03" with symbols provided by all the files inside that "\path\to\objs".
+```

battle_srv/common/conf.go

@@ -37,6 +37,8 @@ type mysqlConf struct {
 
 type sioConf struct {
 	HostAndPort string `json:"hostAndPort"`
+	UdpHost     string `json:"udpHost"`
+	UdpPort     int    `json:"udpPort"`
 }
 
 type botServerConf struct {

battle_srv/configs.template/sio.json

@@ -1,3 +1,5 @@
 {
-  "hostAndPort": "0.0.0.0:9992" 
+  "hostAndPort": "0.0.0.0:9992", 
+  "udpHost": "0.0.0.0", 
+  "udpPort": 3000 
 }

battle_srv/main.go

@@ -23,6 +23,8 @@ import (
 	"github.com/gin-gonic/gin"
 	"github.com/robfig/cron"
 	"go.uber.org/zap"
+
+	"net"
 )
 
 func main() {
@@ -34,7 +36,7 @@ func main() {
 		env_tools.MergeTestPlayerAccounts()
 	}
 	models.InitRoomHeapManager()
-	startScheduler()
+	// startScheduler()
 	router := gin.Default()
 	setRouter(router)
 
@@ -54,6 +56,7 @@ func main() {
 		}
 		Logger.Info("Listening and serving HTTP on", zap.Any("Conf.Sio.HostAndPort", Conf.Sio.HostAndPort))
 	}()
+	go startGrandUdpServer()
 	var gracefulStop = make(chan os.Signal)
 	signal.Notify(gracefulStop, syscall.SIGTERM)
 	signal.Notify(gracefulStop, syscall.SIGINT)
@@ -114,3 +117,33 @@ func startScheduler() {
 	//c.AddFunc("*/1 * * * * *", FuncName)
 	c.Start()
 }
+
+func startGrandUdpServer() {
+	conn, err := net.ListenUDP("udp", &net.UDPAddr{
+		Port: Conf.Sio.UdpPort,
+		IP:   net.ParseIP(Conf.Sio.UdpHost),
+	})
+	if err != nil {
+		panic(err)
+	}
+
+	defer func() {
+		conn.Close()
+		if r := recover(); r != nil {
+			Logger.Error("`GrandUdpServer`, recovery spot#1, recovered from: ", zap.Any("panic", r))
+		}
+		Logger.Info(fmt.Sprintf("The `GrandUdpServer` is stopped"))
+	}()
+
+	Logger.Info(fmt.Sprintf("`GrandUdpServer` started at %s", conn.LocalAddr().String()))
+
+	for {
+		message := make([]byte, 2046)
+		rlen, remote, err := conn.ReadFromUDP(message[:])
+		if err != nil {
+			panic(err)
+		}
+		Logger.Info(fmt.Sprintf("`GrandUdpServer` received: %d bytes from %s\n", rlen, remote))
+		ws.HandleUdpHolePunchingForPlayer(message[0:rlen], remote)
+	}
+}

battle_srv/models/player.go

@@ -8,6 +8,7 @@ import (
 	sq "github.com/Masterminds/squirrel"
 	"github.com/jmoiron/sqlx"
 	"go.uber.org/zap"
+	"net"
 )
 
 type PlayerBattleState struct {
@@ -50,6 +51,10 @@ type Player struct {
 	LastSentInputFrameId     int32
 	AckingFrameId            int32
 	AckingInputFrameId       int32
+
+	UdpAddr                *PeerUdpAddr
+	BattleUdpTunnelAddr    *net.UDPAddr // This addr is used by backend only, not visible to frontend
+	BattleUdpTunnelAuthKey int32
 }
 
 func ExistPlayerByName(name string) (bool, error) {

battle_srv/models/room.go

@@ -13,6 +13,7 @@ import (
 	"io/ioutil"
 	"jsexport/battle"
 	"math/rand"
+	"net"
 	"os"
 	"path/filepath"
 	"resolv"
@@ -32,6 +33,7 @@ const (
 	DOWNSYNC_MSG_ACT_BATTLE_STOPPED   = int32(3)
 	DOWNSYNC_MSG_ACT_FORCED_RESYNC    = int32(4)
 	DOWNSYNC_MSG_ACT_PEER_INPUT_BATCH = int32(5)
+	DOWNSYNC_MSG_ACT_PEER_UDP_ADDR    = int32(6)
 
 	DOWNSYNC_MSG_ACT_BATTLE_READY_TO_START = int32(-1)
 	DOWNSYNC_MSG_ACT_BATTLE_START          = int32(0)
@@ -156,6 +158,10 @@ type Room struct {
 
 	rdfIdToActuallyUsedInput           map[int32]*pb.InputFrameDownsync
 	LastIndividuallyConfirmedInputList []uint64
+
+	BattleUdpTunnelLock sync.Mutex
+	BattleUdpTunnelAddr *pb.PeerUdpAddr
+	BattleUdpTunnel     *net.UDPConn
 }
 
 func (pR *Room) updateScore() {
@@ -176,6 +182,9 @@ func (pR *Room) AddPlayerIfPossible(pPlayerFromDbInit *Player, session *websocke
 
 	defer pR.onPlayerAdded(playerId)
 
+	pPlayerFromDbInit.UdpAddr = nil
+	pPlayerFromDbInit.BattleUdpTunnelAddr = nil
+	pPlayerFromDbInit.BattleUdpTunnelAuthKey = rand.Int31()
 	pPlayerFromDbInit.AckingFrameId = -1
 	pPlayerFromDbInit.AckingInputFrameId = -1
 	pPlayerFromDbInit.LastSentInputFrameId = MAGIC_LAST_SENT_INPUT_FRAME_ID_NORMAL_ADDED
@@ -215,6 +224,9 @@ func (pR *Room) ReAddPlayerIfPossible(pTmpPlayerInstance *Player, session *webso
 	 */
 	defer pR.onPlayerReAdded(playerId)
 	pEffectiveInRoomPlayerInstance := pR.Players[playerId]
+	pEffectiveInRoomPlayerInstance.UdpAddr = nil
+	pEffectiveInRoomPlayerInstance.BattleUdpTunnelAddr = nil
+	pEffectiveInRoomPlayerInstance.BattleUdpTunnelAuthKey = rand.Int31()
 	pEffectiveInRoomPlayerInstance.AckingFrameId = -1
 	pEffectiveInRoomPlayerInstance.AckingInputFrameId = -1
 	pEffectiveInRoomPlayerInstance.LastSentInputFrameId = MAGIC_LAST_SENT_INPUT_FRAME_ID_READDED
@@ -315,8 +327,8 @@ func (pR *Room) InputsBufferString(allDetails bool) string {
 		// Appending of the array of strings can be very SLOW due to on-demand heap allocation! Use this printing with caution.
 		s := make([]string, 0)
 		s = append(s, fmt.Sprintf("{renderFrameId: %v, stInputFrameId: %v, edInputFrameId: %v, lastAllConfirmedInputFrameIdWithChange: %v, lastAllConfirmedInputFrameId: %v}", pR.RenderFrameId, pR.InputsBuffer.StFrameId, pR.InputsBuffer.EdFrameId, pR.LastAllConfirmedInputFrameIdWithChange, pR.LastAllConfirmedInputFrameId))
-		for playerId, player := range pR.PlayersArr {
-			s = append(s, fmt.Sprintf("{playerId: %v, ackingFrameId: %v, ackingInputFrameId: %v, lastSentInputFrameId: %v}", playerId, player.AckingFrameId, player.AckingInputFrameId, player.LastSentInputFrameId))
+		for _, player := range pR.PlayersArr {
+			s = append(s, fmt.Sprintf("{playerId: %v, ackingFrameId: %v, ackingInputFrameId: %v, lastSentInputFrameId: %v}", player.Id, player.AckingFrameId, player.AckingInputFrameId, player.LastSentInputFrameId))
 		}
 		for i := pR.InputsBuffer.StFrameId; i < pR.InputsBuffer.EdFrameId; i++ {
 			tmp := pR.InputsBuffer.GetByFrameId(i)
@@ -562,7 +574,7 @@ func (pR *Room) StartBattle() {
 	})
 }
 
-func (pR *Room) OnBattleCmdReceived(pReq *pb.WsReq) {
+func (pR *Room) OnBattleCmdReceived(pReq *pb.WsReq, fromUDP bool) {
 	/*
 	   [WARNING] This function "OnBattleCmdReceived" could be called by different ws sessions and thus from different threads!
 
@@ -607,20 +619,21 @@ func (pR *Room) OnBattleCmdReceived(pReq *pb.WsReq) {
 		//Logger.Debug(fmt.Sprintf("OnBattleCmdReceived-InputsBufferLock unlocked: roomId=%v, fromPlayerId=%v", pR.Id, playerId))
 	}()
 
-	inputsBufferSnapshot := pR.markConfirmationIfApplicable(inputFrameUpsyncBatch, playerId, player)
+	inputsBufferSnapshot := pR.markConfirmationIfApplicable(inputFrameUpsyncBatch, playerId, player, fromUDP)
 	if nil != inputsBufferSnapshot {
 		pR.downsyncToAllPlayers(inputsBufferSnapshot)
-	} else {
-		// no new all-confirmed
-		toSendInputFrameDownsyncs := pR.cloneInputsBuffer(inputFrameUpsyncBatch[0].InputFrameId, inputFrameUpsyncBatch[len(inputFrameUpsyncBatch)-1].InputFrameId+1)
+	} /*else {
+	        // FIXME: Enable this block after we can proactively detect whether there's any "secondary ws session player" in the battle to avoid waste of resource in creating the snapshot
+			// no new all-confirmed
+			toSendInputFrameDownsyncs := pR.cloneInputsBuffer(inputFrameUpsyncBatch[0].InputFrameId, inputFrameUpsyncBatch[len(inputFrameUpsyncBatch)-1].InputFrameId+1)
 
-		inputsBufferSnapshot = &pb.InputsBufferSnapshot{
-			ToSendInputFrameDownsyncs: toSendInputFrameDownsyncs,
-			PeerJoinIndex:             player.JoinIndex,
-		}
-		//Logger.Info(fmt.Sprintf("OnBattleCmdReceived no new all-confirmed: roomId=%v, fromPlayerId=%v, forming peer broadcasting snapshot=%v", pR.Id, playerId, inputsBufferSnapshot))
-		pR.broadcastPeerUpsyncForBetterPrediction(inputsBufferSnapshot)
-	}
+			inputsBufferSnapshot = &pb.InputsBufferSnapshot{
+				ToSendInputFrameDownsyncs: toSendInputFrameDownsyncs,
+				PeerJoinIndex:             player.JoinIndex,
+			}
+			//Logger.Info(fmt.Sprintf("OnBattleCmdReceived no new all-confirmed: roomId=%v, fromPlayerId=%v, forming peer broadcasting snapshot=%v", pR.Id, playerId, inputsBufferSnapshot))
+			pR.broadcastPeerUpsyncForBetterPrediction(inputsBufferSnapshot)
+		}*/
 }
 
 func (pR *Room) onInputFrameDownsyncAllConfirmed(inputFrameDownsync *battle.InputFrameDownsync, playerId int32) {
@@ -662,6 +675,10 @@ func (pR *Room) StopBattleForSettlement() {
 	if RoomBattleStateIns.IN_BATTLE != pR.State {
 		return
 	}
+	pR.BattleUdpTunnelLock.Lock()
+	pR.BattleUdpTunnel.Close()
+	pR.BattleUdpTunnelLock.Unlock()
+
 	pR.State = RoomBattleStateIns.STOPPING_BATTLE_FOR_SETTLEMENT
 	Logger.Info("Stopping the `battleMainLoop` for:", zap.Any("roomId", pR.Id))
 	pR.RenderFrameId++
@@ -808,18 +825,23 @@ func (pR *Room) OnDismissed() {
 	pR.BattleDurationFrames = int32(60 * serverFps)
 	pR.BattleDurationNanos = int64(pR.BattleDurationFrames) * (pR.RollbackEstimatedDtNanos + 1)
 	pR.InputFrameUpsyncDelayTolerance = battle.ConvertToNoDelayInputFrameId(pR.NstDelayFrames) - 1 // this value should be strictly smaller than (NstDelayFrames >> InputScaleFrames), otherwise "type#1 forceConfirmation" might become a lag avalanche
-	pR.MaxChasingRenderFramesPerUpdate = 4                                                         // Don't set this value too high to avoid exhausting frontend CPU within a single frame
+	pR.MaxChasingRenderFramesPerUpdate = 9                                                         // Don't set this value too high to avoid exhausting frontend CPU within a single frame, roughly as the "turn-around frames to recover" is empirically OK
 
 	pR.BackendDynamicsEnabled = true              // [WARNING] When "false", recovery upon reconnection wouldn't work!
 	pR.ForceAllResyncOnAnyActiveSlowTicker = true // See tradeoff discussion in "downsyncToAllPlayers"
 
 	pR.FrameDataLoggingEnabled = false // [WARNING] DON'T ENABLE ON LONG BATTLE DURATION! It consumes A LOT OF MEMORY!
+	pR.BattleUdpTunnelLock.Lock()
+	pR.BattleUdpTunnel = nil
+	pR.BattleUdpTunnelAddr = nil
+	pR.BattleUdpTunnelLock.Unlock()
 
 	pR.ChooseStage()
 	pR.EffectivePlayerCount = 0
 
 	// [WARNING] It's deliberately ordered such that "pR.State = RoomBattleStateIns.IDLE" is put AFTER all the refreshing operations above.
 	pR.State = RoomBattleStateIns.IDLE
+	go pR.startBattleUdpTunnel() // Would reassign "pR.BattleUdpTunnel"
 	pR.updateScore()
 
 	Logger.Info("The room is completely dismissed(all playerDownsyncChan closed):", zap.Any("roomId", pR.Id))
@@ -1068,7 +1090,9 @@ func (pR *Room) sendSafely(roomDownsyncFrame *pb.RoomDownsyncFrame, toSendInputF
 		panic(fmt.Sprintf("Error marshaling downsync message: roomId=%v, playerId=%v, roomState=%v, roomEffectivePlayerCount=%v", pR.Id, playerId, pR.State, pR.EffectivePlayerCount))
 	}
 
-	if MAGIC_JOIN_INDEX_DEFAULT == peerJoinIndex {
+	shouldUseSecondaryWsSession := (MAGIC_JOIN_INDEX_DEFAULT != peerJoinIndex && DOWNSYNC_MSG_ACT_INPUT_BATCH == act) // FIXME: Simplify the condition
+	//Logger.Info(fmt.Sprintf("shouldUseSecondaryWsSession=%v: roomId=%v, playerId=%v, roomState=%v, roomEffectivePlayerCount=%v", shouldUseSecondaryWsSession, pR.Id, playerId, pR.State, pR.EffectivePlayerCount))
+	if !shouldUseSecondaryWsSession {
 		if playerDownsyncSession, existent := pR.PlayerDownsyncSessionDict[playerId]; existent {
 			if err := playerDownsyncSession.WriteMessage(websocket.BinaryMessage, theBytes); nil != err {
 				panic(fmt.Sprintf("Error sending primary downsync message: roomId=%v, playerId=%v, roomState=%v, roomEffectivePlayerCount=%v, err=%v", pR.Id, playerId, pR.State, pR.EffectivePlayerCount, err))
@@ -1135,7 +1159,7 @@ func (pR *Room) getOrPrefabInputFrameDownsync(inputFrameId int32) *battle.InputF
 	return currInputFrameDownsync
 }
 
-func (pR *Room) markConfirmationIfApplicable(inputFrameUpsyncBatch []*pb.InputFrameUpsync, playerId int32, player *Player) *pb.InputsBufferSnapshot {
+func (pR *Room) markConfirmationIfApplicable(inputFrameUpsyncBatch []*pb.InputFrameUpsync, playerId int32, player *Player, fromUDP bool) *pb.InputsBufferSnapshot {
 	// [WARNING] This function MUST BE called while "pR.InputsBufferLock" is locked!
 	// Step#1, put the received "inputFrameUpsyncBatch" into "pR.InputsBuffer"
 	for _, inputFrameUpsync := range inputFrameUpsyncBatch {
@@ -1158,11 +1182,14 @@ func (pR *Room) markConfirmationIfApplicable(inputFrameUpsyncBatch []*pb.InputFr
 		targetInputFrameDownsync.InputList[player.JoinIndex-1] = inputFrameUpsync.Encoded
 		targetInputFrameDownsync.ConfirmedList |= uint64(1 << uint32(player.JoinIndex-1))
 
-		player.LastReceivedInputFrameId = clientInputFrameId
-		pR.LastIndividuallyConfirmedInputList[player.JoinIndex-1] = inputFrameUpsync.Encoded
-
-		if clientInputFrameId > pR.LatestPlayerUpsyncedInputFrameId {
-			pR.LatestPlayerUpsyncedInputFrameId = clientInputFrameId
+		if false == fromUDP {
+			// [WARNING] We have to distinguish whether or not the incoming batch is from UDP here, otherwise "pR.LatestPlayerUpsyncedInputFrameId - pR.LastAllConfirmedInputFrameId" might become unexpectedly large in case of "UDP packet loss + slow ws session"!
+			player.LastReceivedInputFrameId = clientInputFrameId
+			if clientInputFrameId > pR.LatestPlayerUpsyncedInputFrameId {
+				pR.LatestPlayerUpsyncedInputFrameId = clientInputFrameId
+			}
+			// It's safe (in terms of getting an eventually correct "RenderFrameBuffer") to put the following update of "pR.LastIndividuallyConfirmedInputList" which is ONLY used for prediction in "InputsBuffer" out of "false == fromUDP" block, but I'm still putting it in for convenient debugging.
+			pR.LastIndividuallyConfirmedInputList[player.JoinIndex-1] = inputFrameUpsync.Encoded
 		}
 	}
 
@@ -1350,13 +1377,13 @@ func (pR *Room) printBarrier(barrierCollider *resolv.Object) {
 }
 
 func (pR *Room) doBattleMainLoopPerTickBackendDynamicsWithProperLocking(prevRenderFrameId int32, pDynamicsDuration *int64) {
-	Logger.Debug(fmt.Sprintf("doBattleMainLoopPerTickBackendDynamicsWithProperLocking-InputsBufferLock to about lock: roomId=%v", pR.Id))
+	//Logger.Debug(fmt.Sprintf("doBattleMainLoopPerTickBackendDynamicsWithProperLocking-InputsBufferLock to about lock: roomId=%v", pR.Id))
 	pR.InputsBufferLock.Lock()
-	Logger.Debug(fmt.Sprintf("doBattleMainLoopPerTickBackendDynamicsWithProperLocking-InputsBufferLock locked: roomId=%v", pR.Id))
+	//Logger.Debug(fmt.Sprintf("doBattleMainLoopPerTickBackendDynamicsWithProperLocking-InputsBufferLock locked: roomId=%v", pR.Id))
 
 	defer func() {
 		pR.InputsBufferLock.Unlock()
-		Logger.Debug(fmt.Sprintf("doBattleMainLoopPerTickBackendDynamicsWithProperLocking-InputsBufferLock unlocked: roomId=%v", pR.Id))
+		//Logger.Debug(fmt.Sprintf("doBattleMainLoopPerTickBackendDynamicsWithProperLocking-InputsBufferLock unlocked: roomId=%v", pR.Id))
 	}()
 
 	if ok, thatRenderFrameId := battle.ShouldPrefabInputFrameDownsync(prevRenderFrameId, pR.RenderFrameId); ok {
@@ -1607,3 +1634,144 @@ func (pR *Room) SetSecondarySession(playerId int32, session *websocket.Conn, sig
 		}
 	}
 }
+
+func (pR *Room) UpdatePeerUdpAddrList(playerId int32, peerAddr *net.UDPAddr, pReq *pb.HolePunchUpsync) {
+	// TODO: There's a chance that by now "player.JoinIndex" is not yet determined, use a lock to sync
+	if player, ok := pR.Players[playerId]; ok && MAGIC_JOIN_INDEX_DEFAULT != player.JoinIndex {
+		playerBattleState := atomic.LoadInt32(&(player.BattleState))
+		switch playerBattleState {
+		case PlayerBattleStateIns.DISCONNECTED, PlayerBattleStateIns.LOST, PlayerBattleStateIns.EXPELLED_DURING_GAME, PlayerBattleStateIns.EXPELLED_IN_DISMISSAL:
+			// Kindly note that "PlayerBattleStateIns.ADDED_PENDING_BATTLE_COLLIDER_ACK, PlayerBattleStateIns.READDED_PENDING_BATTLE_COLLIDER_ACK" are allowed
+			return
+		}
+		if _, existent := pR.PlayerDownsyncSessionDict[playerId]; existent {
+			player.UdpAddr = &pb.PeerUdpAddr{
+				Ip:      peerAddr.IP.String(),
+				Port:    int32(peerAddr.Port),
+				AuthKey: pReq.AuthKey,
+			}
+			Logger.Info(fmt.Sprintf("UpdatePeerUdpAddrList done for roomId=%v, playerId=%d, peerAddr=%s", pR.Id, playerId, peerAddr))
+
+			peerJoinIndex := player.JoinIndex
+			peerUdpAddrList := make([]*pb.PeerUdpAddr, pR.Capacity, pR.Capacity)
+
+			for _, otherPlayer := range pR.Players {
+				if MAGIC_JOIN_INDEX_DEFAULT == otherPlayer.JoinIndex {
+					// TODO: Again this shouldn't happen, apply proper locking
+					continue
+				}
+				// In case of highly concurrent update that might occur while later marshalling, use the ptr of a copy
+				peerUdpAddrList[otherPlayer.JoinIndex-1] = &pb.PeerUdpAddr{
+					Ip:      otherPlayer.UdpAddr.Ip,
+					Port:    otherPlayer.UdpAddr.Port,
+					AuthKey: otherPlayer.UdpAddr.AuthKey,
+				}
+			}
+
+			// Broadcast this new UDP addr to all the existing players
+			for otherPlayerId, otherPlayer := range pR.Players {
+				otherPlayerBattleState := atomic.LoadInt32(&(otherPlayer.BattleState))
+				switch otherPlayerBattleState {
+				case PlayerBattleStateIns.DISCONNECTED, PlayerBattleStateIns.LOST, PlayerBattleStateIns.EXPELLED_DURING_GAME, PlayerBattleStateIns.EXPELLED_IN_DISMISSAL:
+					continue
+				}
+
+				Logger.Info(fmt.Sprintf("Downsyncing peerUdpAddrList for roomId=%v, playerId=%d", pR.Id, otherPlayerId))
+				pR.sendSafely(&pb.RoomDownsyncFrame{
+					PeerUdpAddrList: peerUdpAddrList,
+				}, nil, DOWNSYNC_MSG_ACT_PEER_UDP_ADDR, otherPlayerId, false, peerJoinIndex)
+			}
+		}
+	}
+}
+
+func (pR *Room) startBattleUdpTunnel() {
+	defer func() {
+		if r := recover(); r != nil {
+			Logger.Error("`BattleUdpTunnel` recovery spot#1, recovered from: ", zap.Any("roomId", pR.Id), zap.Any("panic", r))
+		}
+		Logger.Info(fmt.Sprintf("`BattleUdpTunnel` stopped for (roomId=%d)@renderFrameId=%v", pR.Id, pR.RenderFrameId))
+	}()
+
+	pR.BattleUdpTunnelLock.Lock()
+	conn, err := net.ListenUDP("udp", &net.UDPAddr{
+		Port: 0,
+		IP:   net.ParseIP(Conf.Sio.UdpHost),
+	})
+	if nil != err {
+		// No need to close the "conn" upon error here
+		pR.BattleUdpTunnelLock.Unlock()
+		panic(err)
+	}
+	pR.BattleUdpTunnel = conn
+	switch v := conn.LocalAddr().(type) {
+	case (*net.UDPAddr):
+		pR.BattleUdpTunnelAddr = &pb.PeerUdpAddr{
+			Ip:      Conf.Sio.UdpHost,
+			Port:    int32(v.Port),
+			AuthKey: 0, // To be determined for each specific player upon joining and sent to it by BattleColliderInfo
+		}
+	}
+
+	pR.BattleUdpTunnelLock.Unlock()
+
+	defer func() {
+		if r := recover(); r != nil {
+			Logger.Warn("`BattleUdpTunnel` recovery spot#2, recovered from: ", zap.Any("roomId", pR.Id), zap.Any("panic", r))
+		}
+		Logger.Info(fmt.Sprintf("`BattleUdpTunnel` closed for (roomId=%d)@renderFrameId=%v", pR.Id, pR.RenderFrameId))
+	}()
+	Logger.Info(fmt.Sprintf("`BattleUdpTunnel` started for roomId=%d at %s", pR.Id, conn.LocalAddr().String()))
+	for {
+		message := make([]byte, 128)
+		rlen, remote, err := conn.ReadFromUDP(message[:]) // Would be unblocked when "conn.Close()" is called from another thread/goroutine, reference https://pkg.go.dev/net@go1.18.6#PacketConn
+		if nil != err {
+			// Should proceed to close the "conn" upon error here, if "conn" is already closed it'd just throw another error to be catched by "spot#2"
+			conn.Close()
+			panic(err)
+		}
+		pReq := new(pb.WsReq)
+		bytes := message[0:rlen]
+		if unmarshalErr := proto.Unmarshal(bytes, pReq); nil != unmarshalErr {
+			Logger.Warn("`BattleUdpTunnel` for roomId=%d failed to unmarshal", zap.Error(unmarshalErr))
+			continue
+		}
+		playerId := pReq.PlayerId
+		//Logger.Info(fmt.Sprintf("`BattleUdpTunnel` for roomId=%d received decoded WsReq:", pR.Id), zap.Any("pReq", pReq))
+		if player, exists1 := pR.Players[playerId]; exists1 {
+			authKey := pReq.AuthKey
+			if authKey != player.BattleUdpTunnelAuthKey {
+				Logger.Warn(fmt.Sprintf("`BattleUdpTunnel` for roomId=%d received %d bytes for playerId=%d from %s, but (incomingAuthKey:%d != playerBattleUdpTunnelAuthKey:%d)\n", pR.Id, rlen, playerId, remote, authKey, player.BattleUdpTunnelAuthKey))
+				continue
+			}
+			if _, existent := pR.PlayerDownsyncSessionDict[playerId]; existent {
+				player.BattleUdpTunnelAddr = remote
+				//Logger.Info(fmt.Sprintf("`BattleUdpTunnel` for roomId=%d updated battleUdpAddr for playerId=%d to be %s\n", pR.Id, playerId, remote))
+
+				nowBattleState := atomic.LoadInt32(&pR.State)
+				if RoomBattleStateIns.IN_BATTLE == nowBattleState {
+					batch := pReq.InputFrameUpsyncBatch
+					if nil != batch && 0 < len(batch) {
+						peerJoinIndex := pReq.JoinIndex
+						// Broadcast to every other player in the same room/battle
+						for _, otherPlayer := range pR.PlayersArr {
+							if otherPlayer.JoinIndex == peerJoinIndex {
+								continue
+							}
+							_, wrerr := conn.WriteTo(bytes, otherPlayer.BattleUdpTunnelAddr)
+							if nil != wrerr {
+								Logger.Warn(fmt.Sprintf("`BattleUdpTunnel` for roomId=%d failed to forward upsync from (playerId:%d, joinIndex:%d, addr:%s) to (otherPlayerId:%d, otherPlayerJoinIndex:%d, otherPlayerAddr:%s)\n", pR.Id, playerId, peerJoinIndex, remote, otherPlayer.Id, otherPlayer.JoinIndex, otherPlayer.BattleUdpTunnelAddr))
+							}
+						}
+						pR.OnBattleCmdReceived(pReq, true) // To help advance "pR.LastAllConfirmedInputFrameId" asap, and even if "pR.LastAllConfirmedInputFrameId" is not advanced due to packet loss, these UDP packets would help prefill the "InputsBuffer" with correct player "future inputs (compared to ws session)" such that when "forceConfirmation" occurs we have as many correct predictions as possible
+					}
+
+				}
+			} else {
+				Logger.Warn(fmt.Sprintf("`BattleUdpTunnel` for roomId=%d received validated %d bytes for playerId=%d from %s, but primary downsync session for it doesn't exist\n", pR.Id, rlen, playerId, remote))
+			}
+		} else {
+			Logger.Warn(fmt.Sprintf("`BattleUdpTunnel` for roomId=%d received invalid %d bytes for playerId=%d from %s, but it doesn't belong to this room!\n", pR.Id, rlen, playerId, remote))
+		}
+	}
+}

battle_srv/ws/serve.go

@@ -10,6 +10,7 @@ import (
 	"github.com/golang/protobuf/proto"
 	"github.com/gorilla/websocket"
 	"go.uber.org/zap"
+	"net"
 	"net/http"
 	"strconv"
 	"sync/atomic"
@@ -256,17 +257,25 @@ func Serve(c *gin.Context) {
 			SpaceOffsetX: pRoom.SpaceOffsetX,
 			SpaceOffsetY: pRoom.SpaceOffsetY,
 
-			RenderCacheSize:  pRoom.RenderCacheSize,
-			CollisionMinStep: pRoom.CollisionMinStep,
+			RenderCacheSize:   pRoom.RenderCacheSize,
+			CollisionMinStep:  pRoom.CollisionMinStep,
+			BoundRoomCapacity: int32(pRoom.Capacity),
+
+			BattleUdpTunnel: &pb.PeerUdpAddr{
+				Ip:      pRoom.BattleUdpTunnelAddr.Ip,
+				Port:    pRoom.BattleUdpTunnelAddr.Port,
+				AuthKey: pThePlayer.BattleUdpTunnelAuthKey,
+			},
 
 			FrameDataLoggingEnabled: pRoom.FrameDataLoggingEnabled,
 		}
 
 		resp := &pb.WsResp{
-			Ret:         int32(Constants.RetCode.Ok),
-			EchoedMsgId: int32(0),
-			Act:         models.DOWNSYNC_MSG_ACT_HB_REQ,
-			BciFrame:    bciFrame,
+			Ret:           int32(Constants.RetCode.Ok),
+			EchoedMsgId:   int32(0),
+			Act:           models.DOWNSYNC_MSG_ACT_HB_REQ,
+			BciFrame:      bciFrame,
+			PeerJoinIndex: pThePlayer.JoinIndex,
 		}
 
 		Logger.Debug("Sending downsync HeartbeatRequirements:", zap.Any("roomId", pRoom.Id), zap.Any("playerId", playerId), zap.Any("resp", resp))
@@ -379,7 +388,7 @@ func Serve(c *gin.Context) {
 				startOrFeedHeartbeatWatchdog(conn)
 			case models.UPSYNC_MSG_ACT_PLAYER_CMD:
 				startOrFeedHeartbeatWatchdog(conn)
-				pRoom.OnBattleCmdReceived(pReq)
+				pRoom.OnBattleCmdReceived(pReq, false)
 			case models.UPSYNC_MSG_ACT_PLAYER_COLLIDER_ACK:
 				res := pRoom.OnPlayerBattleColliderAcked(int32(playerId))
 				if false == res {
@@ -432,12 +441,12 @@ func HandleSecondaryWsSessionForPlayer(c *gin.Context) {
 	playerId, err := models.GetPlayerIdByToken(token)
 	if err != nil || playerId == 0 {
 		// TODO: Abort with specific message.
-		Logger.Warn("Secondary ws session playerLogin record not found for ws authentication:", zap.Any("intAuthToken", token))
+		Logger.Warn("Secondary ws session playerLogin record not found:", zap.Any("intAuthToken", token))
 		c.AbortWithStatus(http.StatusBadRequest)
 		return
 	}
 
-	Logger.Info("Secondary ws session playerLogin record has been found for ws authentication:", zap.Any("playerId", playerId), zap.Any("intAuthToken", token), zap.Any("boundRoomId", boundRoomId))
+	Logger.Info("Secondary ws session playerLogin record has been found:", zap.Any("playerId", playerId), zap.Any("intAuthToken", token), zap.Any("boundRoomId", boundRoomId))
 
 	conn, err := upgrader.Upgrade(c.Writer, c.Request, nil)
 	if err != nil {
@@ -482,3 +491,32 @@ func HandleSecondaryWsSessionForPlayer(c *gin.Context) {
 
 	pRoom.SetSecondarySession(int32(playerId), conn, signalToCloseConnOfThisPlayer)
 }
+
+func HandleUdpHolePunchingForPlayer(message []byte, peerAddr *net.UDPAddr) {
+	pReq := new(pb.HolePunchUpsync)
+	if unmarshalErr := proto.Unmarshal(message, pReq); nil != unmarshalErr {
+		Logger.Error("`GrandUdpServer` failed to unmarshal", zap.Error(unmarshalErr))
+		return
+	}
+
+	token := pReq.IntAuthToken
+	boundRoomId := pReq.BoundRoomId
+
+	pRoom, existent := (*models.RoomMapManagerIns)[int32(boundRoomId)]
+	// Deliberately querying playerId after querying room, because the former is against persistent storage and could be slow!
+	if !existent {
+		Logger.Warn("`GrandUdpServer` failed to get:\n", zap.Any("intAuthToken", token), zap.Any("forBoundRoomId", boundRoomId))
+		return
+	}
+
+	// TODO: Wrap the following 2 stmts by sql transaction!
+	playerId, err := models.GetPlayerIdByToken(token)
+	if err != nil || playerId == 0 {
+		// TODO: Abort with specific message.
+		Logger.Warn("`GrandUdpServer` playerLogin record not found for:", zap.Any("intAuthToken", token))
+		return
+	}
+
+	Logger.Info("`GrandUdpServer` playerLogin record has been found:", zap.Any("playerId", playerId), zap.Any("intAuthToken", token), zap.Any("boundRoomId", boundRoomId), zap.Any("peerAddr", peerAddr))
+	pRoom.UpdatePeerUdpAddrList(int32(playerId), peerAddr, pReq)
+}

frontend/assets/plugin_scripts/NetworkDoctor.js

@@ -1,66 +0,0 @@
-function NetworkDoctor(serverFps, clientUpsyncFps) {
-  this.serverFps = serverFps;
-  this.clientUpsyncFps = clientUpsyncFps;
-  this.millisPerServerFrame = parseInt(1000 / this.serverFps);
-  this._tooLongSinceLastFrameDiffReceivedThreshold = (this.millisPerServerFrame << 6);
-
-  this.setupFps = function(fps) {
-    this.serverFps = this.clientUpsyncFps = fps;
-    this.millisPerServerFrame = parseInt(1000 / this.serverFps);
-    this._tooLongSinceLastFrameDiffReceivedThreshold = (this.millisPerServerFrame << 6);
-  }
-
-  this._lastFrameDiffRecvTime = null;
-  this._tooLongSinceLastFrameDiffReceived = function() {
-    if (undefined === this._lastFrameDiffRecvTime || null === this._lastFrameDiffRecvTime) return false;
-    return (this._tooLongSinceLastFrameDiffReceivedThreshold <= (Date.now() - this._lastFrameDiffRecvTime));
-  };
-
-  this._consecutiveALittleLongFrameDiffReceivedIntervalCount = 0;
-  this._consecutiveALittleLongFrameDiffReceivedIntervalCountThreshold = 120;
-
-  this.onNewFrameDiffReceived = function(frameDiff) {
-    var now = Date.now();
-    if (undefined !== this._lastFrameDiffRecvTime && null !== this._lastFrameDiffRecvTime) {
-      var intervalFromLastFrameDiff = (now - this._lastFrameDiffRecvTime);
-      if ((this.millisPerServerFrame << 5) < intervalFromLastFrameDiff) {
-        ++this._consecutiveALittleLongFrameDiffReceivedIntervalCount;
-        console.log('Medium delay, intervalFromLastFrameDiff is', intervalFromLastFrameDiff);
-      } else {
-        this._consecutiveALittleLongFrameDiffReceivedIntervalCount = 0;
-      }
-    }
-    this._lastFrameDiffRecvTime = now;
-  };
-
-  this._networkComplaintPrefix = "\nNetwork is not good >_<\n";
-
-  this.generateNetworkComplaint = function(excludeTypeConstantALittleLongFrameDiffReceivedInterval, excludeTypeTooLongSinceLastFrameDiffReceived) {
-    if (this.hasBattleStopped) return null;
-    var shouldComplain = false;
-    var ret = this._networkComplaintPrefix;
-    if (true != excludeTypeConstantALittleLongFrameDiffReceivedInterval && this._consecutiveALittleLongFrameDiffReceivedIntervalCountThreshold <= this._consecutiveALittleLongFrameDiffReceivedIntervalCount) {
-      this._consecutiveALittleLongFrameDiffReceivedIntervalCount = 0;
-      ret += "\nConstantly having a little long recv interval.\n";
-      shouldComplain = true;
-    }
-    if (true != excludeTypeTooLongSinceLastFrameDiffReceived && this._tooLongSinceLastFrameDiffReceived()) {
-      ret += "\nToo long since last received frameDiff.\n";
-      shouldComplain = true;
-    }
-    return (shouldComplain ? ret : null);
-  };
-
-  this.hasBattleStopped = false;
-  this.onBattleStopped = function() {
-    this.hasBattleStopped = true;
-  };
-
-  this.isClientSessionConnected = function() {
-    if (!window.game) return false;
-    if (!window.game.clientSession) return false;
-    return window.game.clientSession.connected; 
-  };
-}
-
-window.NetworkDoctor = NetworkDoctor;

frontend/assets/plugin_scripts/auxiliaries.js

@@ -198,3 +198,6 @@ window.getOrCreateAnimationClipForGid = function(gid, tiledMapInfo, tilesElListU
     animationClip: animClip,
   };
 };
+
+// Node.js, this is a workaround to avoid accessing the non-existent "TextDecoder class" from "jsexport.js".
+window.fs = function() {};

frontend/assets/resources/pbfiles/room_downsync_frame.proto

@@ -73,18 +73,9 @@ message WsReq {
   int32 joinIndex = 4;
   int32 ackingFrameId = 5;
   int32 ackingInputFrameId = 6;
-  repeated InputFrameUpsync inputFrameUpsyncBatch = 7;
-  HeartbeatUpsync hb = 8;
-}
-
-message WsResp {
-  int32 ret = 1;
-  int32 echoedMsgId = 2;
-  int32 act = 3;
-  RoomDownsyncFrame rdf = 4;
-  repeated InputFrameDownsync inputFrameDownsyncBatch = 5;
-  BattleColliderInfo bciFrame = 6;
-  int32 peerJoinIndex = 7; // Only used when "InputsBufferSnapshot.peerJoinIndex" is used.
+  int32 authKey = 7;
+  repeated InputFrameUpsync inputFrameUpsyncBatch = 8;
+  HeartbeatUpsync hb = 9;
 }
 
 message InputsBufferSnapshot {
@@ -92,7 +83,7 @@ message InputsBufferSnapshot {
   uint64 unconfirmedMask = 2;
   repeated InputFrameDownsync toSendInputFrameDownsyncs = 3;
   bool shouldForceResync = 4;
-  int32 peerJoinIndex = 5; // Only used when "WsResp.peerJoinIndex" is used.
+  int32 peerJoinIndex = 5;
 }
 
 message MeleeBullet {
@@ -175,6 +166,18 @@ message FireballBullet {
   int32 speed = 1005;
 }
 
+message HolePunchUpsync {
+ string intAuthToken = 1;
+ int32 boundRoomId = 2;
+ int32 authKey = 3;
+}
+
+message PeerUdpAddr {
+ string ip = 1;
+ int32 port = 2;
+ int32 authKey = 3;
+}
+
 message BattleColliderInfo {
   string stageName = 1;
 
@@ -191,6 +194,8 @@ message BattleColliderInfo {
   double spaceOffsetX = 11;
   double spaceOffsetY = 12;
   int32 collisionMinStep = 13;
+  int32 boundRoomCapacity = 14;
+  PeerUdpAddr battleUdpTunnel = 15;
 
   bool frameDataLoggingEnabled = 1024;
 }
@@ -207,4 +212,15 @@ message RoomDownsyncFrame {
   repeated int32 speciesIdList = 1026;
 
   int32 bulletLocalIdCounter = 1027;
+  repeated PeerUdpAddr peerUdpAddrList = 1028;
+}
+
+message WsResp {
+  int32 ret = 1;
+  int32 echoedMsgId = 2;
+  int32 act = 3;
+  RoomDownsyncFrame rdf = 4;
+  repeated InputFrameDownsync inputFrameDownsyncBatch = 5;
+  BattleColliderInfo bciFrame = 6;
+  int32 peerJoinIndex = 7;
 }

frontend/assets/scenes/default_map.fire

@@ -78,19 +78,19 @@
     "_active": true,
     "_components": [
       {
-        "__id__": 40
+        "__id__": 50
       },
       {
-        "__id__": 41
+        "__id__": 51
       },
       {
-        "__id__": 42
+        "__id__": 52
       },
       {
-        "__id__": 43
+        "__id__": 53
       },
       {
-        "__id__": 44
+        "__id__": 54
       }
     ],
     "_prefab": null,
@@ -158,7 +158,7 @@
         "__id__": 5
       },
       {
-        "__id__": 39
+        "__id__": 49
       }
     ],
     "_prefab": null,
@@ -247,10 +247,10 @@
       "__uuid__": "670b477e-61a1-4778-879b-35913f7c79d2"
     },
     "boundRoomIdLabel": {
-      "__id__": 16
+      "__id__": 26
     },
     "countdownLabel": {
-      "__id__": 23
+      "__id__": 33
     },
     "resultPanelPrefab": {
       "__uuid__": "c4cfe3bd-c59e-4d5b-95cb-c933b120e184"
@@ -269,9 +269,21 @@
     },
     "forceBigEndianFloatingNumDecoding": false,
     "renderFrameIdLagTolerance": 4,
-    "jigglingEps1D": 0.001,
-    "bulletTriggerEnabled": true,
-    "closeOnForcedtoResyncNotSelf": true,
+    "sendingQLabel": {
+      "__id__": 13
+    },
+    "inputFrameDownsyncQLabel": {
+      "__id__": 15
+    },
+    "peerInputFrameUpsyncQLabel": {
+      "__id__": 17
+    },
+    "rollbackFramesLabel": {
+      "__id__": 19
+    },
+    "skippedRenderFrameCntLabel": {
+      "__id__": 21
+    },
     "_id": "d12gkAmppNlIzqcRDELa91"
   },
   {
@@ -283,13 +295,13 @@
     },
     "_children": [
       {
-        "__id__": 33
+        "__id__": 43
       }
     ],
     "_active": true,
     "_components": [
       {
-        "__id__": 38
+        "__id__": 48
       }
     ],
     "_prefab": null,
@@ -352,19 +364,19 @@
         "__id__": 6
       },
       {
-        "__id__": 22
+        "__id__": 32
       },
       {
-        "__id__": 24
+        "__id__": 34
       },
       {
-        "__id__": 28
+        "__id__": 38
       }
     ],
     "_active": true,
     "_components": [
       {
-        "__id__": 32
+        "__id__": 42
       }
     ],
     "_prefab": null,
@@ -433,7 +445,7 @@
     "_active": true,
     "_components": [
       {
-        "__id__": 21
+        "__id__": 31
       }
     ],
     "_prefab": null,
@@ -527,7 +539,7 @@
       "array": [
         0,
         0,
-        209.57814771583418,
+        210.16474188040044,
         0,
         0,
         0,
@@ -596,15 +608,30 @@
     "_children": [
       {
         "__id__": 12
+      },
+      {
+        "__id__": 14
+      },
+      {
+        "__id__": 16
+      },
+      {
+        "__id__": 18
+      },
+      {
+        "__id__": 20
+      },
+      {
+        "__id__": 22
       }
     ],
     "_active": true,
     "_components": [
       {
-        "__id__": 19
+        "__id__": 29
       },
       {
-        "__id__": 20
+        "__id__": 30
       }
     ],
     "_prefab": null,
@@ -631,7 +658,7 @@
       "ctor": "Float64Array",
       "array": [
         -447.294,
-        135.702,
+        138.942,
         0,
         0,
         0,
@@ -655,6 +682,476 @@
     "groupIndex": 0,
     "_id": "35scg40jVAnKrTPiei5ckg"
   },
+  {
+    "__type__": "cc.Node",
+    "_name": "sendingQ",
+    "_objFlags": 0,
+    "_parent": {
+      "__id__": 11
+    },
+    "_children": [],
+    "_active": true,
+    "_components": [
+      {
+        "__id__": 13
+      }
+    ],
+    "_prefab": null,
+    "_opacity": 255,
+    "_color": {
+      "__type__": "cc.Color",
+      "r": 255,
+      "g": 255,
+      "b": 255,
+      "a": 255
+    },
+    "_contentSize": {
+      "__type__": "cc.Size",
+      "width": 18.33,
+      "height": 22.61
+    },
+    "_anchorPoint": {
+      "__type__": "cc.Vec2",
+      "x": 0,
+      "y": 0.5
+    },
+    "_trs": {
+      "__type__": "TypedArray",
+      "ctor": "Float64Array",
+      "array": [
+        0,
+        88.695,
+        0,
+        0,
+        0,
+        0,
+        1,
+        1,
+        1,
+        1
+      ]
+    },
+    "_eulerAngles": {
+      "__type__": "cc.Vec3",
+      "x": 0,
+      "y": 0,
+      "z": 0
+    },
+    "_skewX": 0,
+    "_skewY": 0,
+    "_is3DNode": false,
+    "_groupIndex": 0,
+    "groupIndex": 0,
+    "_id": "ack7XH+0lEj6chSUsKBLU5"
+  },
+  {
+    "__type__": "cc.Label",
+    "_name": "",
+    "_objFlags": 0,
+    "node": {
+      "__id__": 12
+    },
+    "_enabled": true,
+    "_materials": [
+      {
+        "__uuid__": "eca5d2f2-8ef6-41c2-bbe6-f9c79d09c432"
+      }
+    ],
+    "_useOriginalSize": false,
+    "_string": "0",
+    "_N$string": "0",
+    "_fontSize": 22,
+    "_lineHeight": 37,
+    "_enableWrapText": true,
+    "_N$file": {
+      "__uuid__": "a564b3db-b8cb-48b4-952e-25bb56949116"
+    },
+    "_isSystemFontUsed": false,
+    "_spacingX": 0,
+    "_batchAsBitmap": false,
+    "_N$horizontalAlign": 0,
+    "_N$verticalAlign": 1,
+    "_N$fontFamily": "Arial",
+    "_N$overflow": 0,
+    "_N$cacheMode": 0,
+    "_id": "deCJfLuoFO36c/O4lXWJ1N"
+  },
+  {
+    "__type__": "cc.Node",
+    "_name": "inputFrameDownsyncQ",
+    "_objFlags": 0,
+    "_parent": {
+      "__id__": 11
+    },
+    "_children": [],
+    "_active": true,
+    "_components": [
+      {
+        "__id__": 15
+      }
+    ],
+    "_prefab": null,
+    "_opacity": 255,
+    "_color": {
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+        "__id__": 58
       }
     ],
     "_active": true,
     "_components": [
       {
-        "__id__": 58
+        "__id__": 60
       }
     ],
     "_prefab": null,
@@ -582,23 +681,23 @@
     "_name": "phoneCountryCodeInput",
     "_objFlags": 0,
     "_parent": {
-      "__id__": 10
+      "__id__": 12
     },
     "_children": [
-      {
-        "__id__": 12
-      },
       {
         "__id__": 14
       },
       {
         "__id__": 16
+      },
+      {
+        "__id__": 18
       }
     ],
     "_active": true,
     "_components": [
       {
-        "__id__": 18
+        "__id__": 20
       }
     ],
     "_prefab": null,
@@ -654,13 +753,13 @@
     "_name": "BACKGROUND_SPRITE",
     "_objFlags": 0,
     "_parent": {
-      "__id__": 11
+      "__id__": 13
     },
     "_children": [],
     "_active": true,
     "_components": [
       {
-        "__id__": 13
+        "__id__": 15
       }
     ],
     "_prefab": null,
@@ -716,7 +815,7 @@
     "_name": "",
     "_objFlags": 0,
     "node": {
-      "__id__": 12
+      "__id__": 14
     },
     "_enabled": true,
     "_materials": [
@@ -748,13 +847,13 @@
     "_name": "TEXT_LABEL",
     "_objFlags": 0,
     "_parent": {
-      "__id__": 11
+      "__id__": 13
     },
     "_children": [],
     "_active": true,
     "_components": [
       {
-        "__id__": 15
+        "__id__": 17
       }
     ],
     "_prefab": null,
@@ -810,7 +909,7 @@
     "_name": "",
     "_objFlags": 0,
     "node": {
-      "__id__": 14
+      "__id__": 16
     },
     "_enabled": true,
     "_materials": [
@@ -840,13 +939,13 @@
     "_name": "PLACEHOLDER_LABEL",
     "_objFlags": 0,
     "_parent": {
-      "__id__": 11
+      "__id__": 13
     },
     "_children": [],
     "_active": false,
     "_components": [
       {
-        "__id__": 17
+        "__id__": 19
       }
     ],
     "_prefab": null,
@@ -902,7 +1001,7 @@
     "_name": "",
     "_objFlags": 0,
     "node": {
-      "__id__": 16
+      "__id__": 18
     },
     "_enabled": true,
     "_materials": [],
@@ -928,7 +1027,7 @@
     "_name": "",
     "_objFlags": 0,
     "node": {
-      "__id__": 11
+      "__id__": 13
     },
     "_enabled": true,
     "_useOriginalSize": false,
@@ -941,13 +1040,13 @@
     "editingDidEnded": [],
     "editingReturn": [],
     "_N$textLabel": {
-      "__id__": 15
-    },
-    "_N$placeholderLabel": {
       "__id__": 17
     },
+    "_N$placeholderLabel": {
+      "__id__": 19
+    },
     "_N$background": {
-      "__id__": 13
+      "__id__": 15
     },
     "_N$inputFlag": 5,
     "_N$inputMode": 3,
@@ -959,13 +1058,13 @@
     "_name": "phoneLabel",
     "_objFlags": 0,
     "_parent": {
-      "__id__": 10
+      "__id__": 12
     },
     "_children": [],
     "_active": true,
     "_components": [
       {
-        "__id__": 20
+        "__id__": 22
       }
     ],
     "_prefab": null,
@@ -1021,7 +1120,7 @@
     "_name": "",
     "_objFlags": 0,
     "node": {
-      "__id__": 19
+      "__id__": 21
     },
     "_enabled": true,
     "_materials": [
@@ -1051,23 +1150,23 @@
     "_name": "phoneNumberInput",
     "_objFlags": 0,
     "_parent": {
-      "__id__": 10
+      "__id__": 12
     },
     "_children": [
-      {
-        "__id__": 22
-      },
       {
         "__id__": 24
       },
       {
         "__id__": 26
+      },
+      {
+        "__id__": 28
       }
     ],
     "_active": true,
     "_components": [
       {
-        "__id__": 29
+        "__id__": 31
       }
     ],
     "_prefab": null,
@@ -1123,13 +1222,13 @@
     "_name": "BACKGROUND_SPRITE",
     "_objFlags": 0,
     "_parent": {
-      "__id__": 21
+      "__id__": 23
     },
     "_children": [],
     "_active": true,
     "_components": [
       {
-        "__id__": 23
+        "__id__": 25
       }
     ],
     "_prefab": null,
@@ -1185,7 +1284,7 @@
     "_name": "",
     "_objFlags": 0,
     "node": {
-      "__id__": 22
+      "__id__": 24
     },
     "_enabled": true,
     "_materials": [
@@ -1217,13 +1316,13 @@
     "_name": "TEXT_LABEL",
     "_objFlags": 0,
     "_parent": {
-      "__id__": 21
+      "__id__": 23
     },
     "_children": [],
     "_active": false,
     "_components": [
       {
-        "__id__": 25
+        "__id__": 27
       }
     ],
     "_prefab": null,
@@ -1279,7 +1378,7 @@
     "_name": "",
     "_objFlags": 0,
     "node": {
-      "__id__": 24
+      "__id__": 26
     },
     "_enabled": true,
     "_materials": [],
@@ -1305,16 +1404,16 @@
     "_name": "PLACEHOLDER_LABEL",
     "_objFlags": 0,
     "_parent": {
-      "__id__": 21
+      "__id__": 23
     },
     "_children": [],
     "_active": true,
     "_components": [
       {
-        "__id__": 27
+        "__id__": 29
       },
       {
-        "__id__": 28
+        "__id__": 30
       }
     ],
     "_prefab": null,
@@ -1370,7 +1469,7 @@
     "_name": "",
     "_objFlags": 0,
     "node": {
-      "__id__": 26
+      "__id__": 28
     },
     "_enabled": true,
     "_materials": [
@@ -1400,7 +1499,7 @@
     "_name": "",
     "_objFlags": 0,
     "node": {
-      "__id__": 26
+      "__id__": 28
     },
     "_enabled": true,
     "_dataID": "login.hint.phoneInputHint",
@@ -1411,7 +1510,7 @@
     "_name": "",
     "_objFlags": 0,
     "node": {
-      "__id__": 21
+      "__id__": 23
     },
     "_enabled": true,
     "_useOriginalSize": false,
@@ -1424,13 +1523,13 @@
     "editingDidEnded": [],
     "editingReturn": [],
     "_N$textLabel": {
-      "__id__": 25
-    },
-    "_N$placeholderLabel": {
       "__id__": 27
     },
+    "_N$placeholderLabel": {
+      "__id__": 29
+    },
     "_N$background": {
-      "__id__": 23
+      "__id__": 25
     },
     "_N$inputFlag": 5,
     "_N$inputMode": 1,
@@ -1442,13 +1541,13 @@
     "_name": " smsLoginCaptchaLabel",
     "_objFlags": 0,
     "_parent": {
-      "__id__": 10
+      "__id__": 12
     },
     "_children": [],
     "_active": true,
     "_components": [
       {
-        "__id__": 31
+        "__id__": 33
       }
     ],
     "_prefab": null,
@@ -1504,7 +1603,7 @@
     "_name": "",
     "_objFlags": 0,
     "node": {
-      "__id__": 30
+      "__id__": 32
     },
     "_enabled": true,
     "_materials": [
@@ -1534,23 +1633,23 @@
     "_name": "smsLoginCaptchaInput",
     "_objFlags": 0,
     "_parent": {
-      "__id__": 10
+      "__id__": 12
     },
     "_children": [
-      {
-        "__id__": 33
-      },
       {
         "__id__": 35
       },
       {
         "__id__": 37
+      },
+      {
+        "__id__": 39
       }
     ],
     "_active": true,
     "_components": [
       {
-        "__id__": 40
+        "__id__": 42
       }
     ],
     "_prefab": null,
@@ -1606,13 +1705,13 @@
     "_name": "BACKGROUND_SPRITE",
     "_objFlags": 0,
     "_parent": {
-      "__id__": 32
+      "__id__": 34
     },
     "_children": [],
     "_active": true,
     "_components": [
       {
-        "__id__": 34
+        "__id__": 36
       }
     ],
     "_prefab": null,
@@ -1668,7 +1767,7 @@
     "_name": "",
     "_objFlags": 0,
     "node": {
-      "__id__": 33
+      "__id__": 35
     },
     "_enabled": true,
     "_materials": [
@@ -1700,13 +1799,13 @@
     "_name": "TEXT_LABEL",
     "_objFlags": 0,
     "_parent": {
-      "__id__": 32
+      "__id__": 34
     },
     "_children": [],
     "_active": false,
     "_components": [
       {
-        "__id__": 36
+        "__id__": 38
       }
     ],
     "_prefab": null,
@@ -1762,7 +1861,7 @@
     "_name": "",
     "_objFlags": 0,
     "node": {
-      "__id__": 35
+      "__id__": 37
     },
     "_enabled": true,
     "_materials": [],
@@ -1788,16 +1887,16 @@
     "_name": "PLACEHOLDER_LABEL",
     "_objFlags": 0,
     "_parent": {
-      "__id__": 32
+      "__id__": 34
     },
     "_children": [],
     "_active": true,
     "_components": [
       {
-        "__id__": 38
+        "__id__": 40
       },
       {
-        "__id__": 39
+        "__id__": 41
       }
     ],
     "_prefab": null,
@@ -1853,7 +1952,7 @@
     "_name": "",
     "_objFlags": 0,
     "node": {
-      "__id__": 37
+      "__id__": 39
     },
     "_enabled": true,
     "_materials": [
@@ -1883,7 +1982,7 @@
     "_name": "",
     "_objFlags": 0,
     "node": {
-      "__id__": 37
+      "__id__": 39
     },
     "_enabled": true,
     "_dataID": "login.hint.captchaInputHint",
@@ -1894,7 +1993,7 @@
     "_name": "",
     "_objFlags": 0,
     "node": {
-      "__id__": 32
+      "__id__": 34
     },
     "_enabled": true,
     "_useOriginalSize": false,
@@ -1907,13 +2006,13 @@
     "editingDidEnded": [],
     "editingReturn": [],
     "_N$textLabel": {
-      "__id__": 36
-    },
-    "_N$placeholderLabel": {
       "__id__": 38
     },
+    "_N$placeholderLabel": {
+      "__id__": 40
+    },
     "_N$background": {
-      "__id__": 34
+      "__id__": 36
     },
     "_N$inputFlag": 5,
     "_N$inputMode": 2,
@@ -1925,20 +2024,20 @@
     "_name": "smsLoginCaptchaButton",
     "_objFlags": 0,
     "_parent": {
-      "__id__": 10
+      "__id__": 12
     },
     "_children": [
       {
-        "__id__": 42
+        "__id__": 44
       },
       {
-        "__id__": 44
+        "__id__": 46
       }
     ],
     "_active": true,
     "_components": [
       {
-        "__id__": 46
+        "__id__": 48
       }
     ],
     "_prefab": null,
@@ -1994,13 +2093,13 @@
     "_name": "smsGetCaptcha",
     "_objFlags": 0,
     "_parent": {
-      "__id__": 41
+      "__id__": 43
     },
     "_children": [],
     "_active": true,
     "_components": [
       {
-        "__id__": 43
+        "__id__": 45
       }
     ],
     "_prefab": null,
@@ -2056,7 +2155,7 @@
     "_name": "",
     "_objFlags": 0,
     "node": {
-      "__id__": 42
+      "__id__": 44
     },
     "_enabled": true,
     "_materials": [
@@ -2090,13 +2189,13 @@
     "_name": "captchaLabel",
     "_objFlags": 0,
     "_parent": {
-      "__id__": 41
+      "__id__": 43
     },
     "_children": [],
     "_active": true,
     "_components": [
       {
-        "__id__": 45
+        "__id__": 47
       }
     ],
     "_prefab": null,
@@ -2152,7 +2251,7 @@
     "_name": "",
     "_objFlags": 0,
     "node": {
-      "__id__": 44
+      "__id__": 46
     },
     "_enabled": true,
     "_materials": [
@@ -2182,7 +2281,7 @@
     "_name": "",
     "_objFlags": 0,
     "node": {
-      "__id__": 41
+      "__id__": 43
     },
     "_enabled": true,
     "_normalMaterial": null,
@@ -2191,7 +2290,7 @@
     "zoomScale": 1.1,
     "clickEvents": [
       {
-        "__id__": 47
+        "__id__": 49
       }
     ],
     "_N$interactable": true,
@@ -2257,7 +2356,7 @@
       "__uuid__": "29158224-f8dd-4661-a796-1ffab537140e"
     },
     "_N$target": {
-      "__id__": 41
+      "__id__": 43
     },
     "_id": "96L9tbxW9DHJHU5hUi9oNc"
   },
@@ -2276,20 +2375,20 @@
     "_name": "loginButton",
     "_objFlags": 0,
     "_parent": {
-      "__id__": 10
+      "__id__": 12
     },
     "_children": [
       {
-        "__id__": 49
+        "__id__": 51
       }
     ],
     "_active": true,
     "_components": [
       {
-        "__id__": 51
+        "__id__": 53
       },
       {
-        "__id__": 52
+        "__id__": 54
       }
     ],
     "_prefab": null,
@@ -2345,13 +2444,13 @@
     "_name": "loginLabel",
     "_objFlags": 0,
     "_parent": {
-      "__id__": 48
+      "__id__": 50
     },
     "_children": [],
     "_active": true,
     "_components": [
       {
-        "__id__": 50
+        "__id__": 52
       }
     ],
     "_prefab": null,
@@ -2407,7 +2506,7 @@
     "_name": "",
     "_objFlags": 0,
     "node": {
-      "__id__": 49
+      "__id__": 51
     },
     "_enabled": true,
     "_materials": [
@@ -2437,7 +2536,7 @@
     "_name": "",
     "_objFlags": 0,
     "node": {
-      "__id__": 48
+      "__id__": 50
     },
     "_enabled": true,
     "_materials": [
@@ -2471,7 +2570,7 @@
     "_name": "",
     "_objFlags": 0,
     "node": {
-      "__id__": 48
+      "__id__": 50
     },
     "_enabled": true,
     "_normalMaterial": null,
@@ -2480,7 +2579,7 @@
     "zoomScale": 1.2,
     "clickEvents": [
       {
-        "__id__": 53
+        "__id__": 55
       }
     ],
     "_N$interactable": true,
@@ -2546,7 +2645,7 @@
       "__uuid__": "29158224-f8dd-4661-a796-1ffab537140e"
     },
     "_N$target": {
-      "__id__": 48
+      "__id__": 50
     },
     "_id": "0dQu3M5+hO8Ia4FD67Br39"
   },
@@ -2565,13 +2664,13 @@
     "_name": "phoneNumberTips",
     "_objFlags": 0,
     "_parent": {
-      "__id__": 10
+      "__id__": 12
     },
     "_children": [],
     "_active": true,
     "_components": [
       {
-        "__id__": 55
+        "__id__": 57
       }
     ],
     "_prefab": null,
@@ -2627,7 +2726,7 @@
     "_name": "",
     "_objFlags": 0,
     "node": {
-      "__id__": 54
+      "__id__": 56
     },
     "_enabled": true,
     "_materials": [
@@ -2657,13 +2756,13 @@
     "_name": "captchaTips",
     "_objFlags": 0,
     "_parent": {
-      "__id__": 10
+      "__id__": 12
     },
     "_children": [],
     "_active": true,
     "_components": [
       {
-        "__id__": 57
+        "__id__": 59
       }
     ],
     "_prefab": null,
@@ -2719,7 +2818,7 @@
     "_name": "",
     "_objFlags": 0,
     "node": {
-      "__id__": 56
+      "__id__": 58
     },
     "_enabled": true,
     "_materials": [
@@ -2749,7 +2848,7 @@
     "_name": "",
     "_objFlags": 0,
     "node": {
-      "__id__": 10
+      "__id__": 12
     },
     "_enabled": true,
     "alignMode": 1,
@@ -2776,7 +2875,7 @@
     "_name": "",
     "_objFlags": 0,
     "node": {
-      "__id__": 9
+      "__id__": 11
     },
     "_enabled": true,
     "alignMode": 0,
@@ -2854,37 +2953,37 @@
       "__id__": 2
     },
     "backgroundNode": {
-      "__id__": 9
-    },
-    "interactiveControls": {
-      "__id__": 10
-    },
-    "phoneLabel": {
-      "__id__": 19
-    },
-    "smsLoginCaptchaLabel": {
-      "__id__": 30
-    },
-    "phoneCountryCodeInput": {
       "__id__": 11
     },
-    "phoneNumberInput": {
+    "interactiveControls": {
+      "__id__": 12
+    },
+    "phoneLabel": {
       "__id__": 21
     },
-    "phoneNumberTips": {
-      "__id__": 54
-    },
-    "smsLoginCaptchaInput": {
+    "smsLoginCaptchaLabel": {
       "__id__": 32
     },
-    "smsLoginCaptchaButton": {
-      "__id__": 41
+    "phoneCountryCodeInput": {
+      "__id__": 13
     },
-    "captchaTips": {
+    "phoneNumberInput": {
+      "__id__": 23
+    },
+    "phoneNumberTips": {
       "__id__": 56
     },
+    "smsLoginCaptchaInput": {
+      "__id__": 34
+    },
+    "smsLoginCaptchaButton": {
+      "__id__": 43
+    },
+    "captchaTips": {
+      "__id__": 58
+    },
     "loginButton": {
-      "__id__": 48
+      "__id__": 50
     },
     "smsWaitCountdownPrefab": {
       "__uuid__": "2c0101b8-c15a-4501-9fce-cd5a014af8bf"

frontend/assets/scripts/AttackingCharacter.js

@@ -75,10 +75,10 @@ cc.Class({
   onLoad() {
     BaseCharacter.prototype.onLoad.call(this);
     this.effAnimNode = this.animNode.getChildByName(this.speciesName);
-    this.animComp = this.effAnimNode.getComponent(dragonBones.ArmatureDisplay);
-    if (!this.animComp) {
-      this.animComp = this.effAnimNode.getComponent(cc.Animation);
-    }
+    //this.animComp = this.effAnimNode.getComponent(dragonBones.ArmatureDisplay);
+    //if (!this.animComp) {
+    this.animComp = this.effAnimNode.getComponent(cc.Animation);
+    //}
     this.effAnimNode.active = true;
   },
 
@@ -107,13 +107,13 @@ cc.Class({
     let playingAnimName = null;
     let underlyingAnimationCtrl = null;
 
-    if (this.animComp instanceof dragonBones.ArmatureDisplay) {
-      underlyingAnimationCtrl = this.animComp._armature.animation; // ALWAYS use the dragonBones api instead of ccc's wrapper!
-      playingAnimName = underlyingAnimationCtrl.lastAnimationName;
-    } else {
-      underlyingAnimationCtrl = this.animComp.currentClip;
-      playingAnimName = (!underlyingAnimationCtrl ? null : underlyingAnimationCtrl.name);
-    }
+    //if (this.animComp instanceof dragonBones.ArmatureDisplay) {
+    //  underlyingAnimationCtrl = this.animComp._armature.animation; // ALWAYS use the dragonBones api instead of ccc's wrapper!
+    //  playingAnimName = underlyingAnimationCtrl.lastAnimationName;
+    //} else {
+    underlyingAnimationCtrl = this.animComp.currentClip;
+    playingAnimName = (!underlyingAnimationCtrl ? null : underlyingAnimationCtrl.name);
+    //}
 
     // It turns out that "prevRdfPlayer.CharacterState" is not useful in this function :)
     if (newAnimName == playingAnimName && window.ATK_CHARACTER_STATE_INTERRUPT_WAIVE_SET.has(newCharacterState)) {
@@ -122,11 +122,11 @@ cc.Class({
       return;
     }
 
-    if (this.animComp instanceof dragonBones.ArmatureDisplay) {
-      this._interruptPlayingAnimAndPlayNewAnimDragonBones(rdfPlayer, prevRdfPlayer, newCharacterState, newAnimName, underlyingAnimationCtrl, playingAnimName, chConfig);
-    } else {
-      this._interruptPlayingAnimAndPlayNewAnimFrameAnim(rdfPlayer, prevRdfPlayer, newCharacterState, newAnimName, playingAnimName, chConfig);
-    }
+    //if (this.animComp instanceof dragonBones.ArmatureDisplay) {
+    //  this._interruptPlayingAnimAndPlayNewAnimDragonBones(rdfPlayer, prevRdfPlayer, newCharacterState, newAnimName, underlyingAnimationCtrl, playingAnimName, chConfig);
+    //} else {
+    this._interruptPlayingAnimAndPlayNewAnimFrameAnim(rdfPlayer, prevRdfPlayer, newCharacterState, newAnimName, playingAnimName, chConfig);
+    //}
   },
 
   _interruptPlayingAnimAndPlayNewAnimDragonBones(rdfPlayer, prevRdfPlayer, newCharacterState, newAnimName, underlyingAnimationCtrl, playingAnimName, chConfig) {

frontend/assets/scripts/FindingPlayer.js

@@ -23,7 +23,8 @@ cc.Class({
   // LIFE-CYCLE CALLBACKS:
   onLoad() {},
 
-  init() {
+  init(mapIns) {
+    this.mapIns = mapIns;
     if (null != this.firstPlayerInfoNode) {
       this.firstPlayerInfoNode.active = false;
     }
@@ -53,9 +54,10 @@ cc.Class({
   },
 
   exitBtnOnClick(evt) {
-    window.clearBoundRoomIdInBothVolatileAndPersistentStorage();
-    window.closeWSConnection();
-    cc.director.loadScene('login');
+    this.mapIns.hideFindingPlayersGUI();
+    cc.log(`FindingPlayers.exitBtnOnClick`);
+    window.closeWSConnection(constants.RET_CODE.BATTLE_STOPPED, "");
+    window.clearLocalStorageAndBackToLoginScene(false);
   },
 
   updatePlayersInfo(playerMetas) {

frontend/assets/scripts/Map.js

@@ -2,6 +2,7 @@ const i18n = require('LanguageData');
 i18n.init(window.language); // languageID should be equal to the one we input in New Language ID input field
 
 const RingBuffer = require('./RingBuffer');
+const NetworkDoctor = require('./NetworkDoctor');
 const PriorityQueue = require("./PriorityQueue");
 
 window.ALL_MAP_STATES = {
@@ -33,6 +34,23 @@ window.PlayerBattleState = {
   EXPELLED_IN_DISMISSAL: 6
 };
 
+window.onUdpMessage = (args) => {
+  const self = window.mapIns;
+  const ui8Arr = args;
+  //cc.log(`#1 Js called back by CPP: onUdpMessage: args=${args}, typeof(args)=${typeof (args)}, argslen=${args.length}, ui8Arr=${ui8Arr}`);
+  const req = window.pb.protos.WsReq.decode(ui8Arr);
+  if (req) {
+    //cc.log(`#2 Js called back by CPP for upsync: onUdpMessage: ${JSON.stringify(req)}`);
+    if (req.act && window.UPSYNC_MSG_ACT_PLAYER_CMD == req.act) {
+      let effCnt = 0;
+      const renderedInputFrameIdUpper = gopkgs.ConvertToDelayedInputFrameId(self.renderFrameId);
+      const peerJoinIndex = req.joinIndex;
+      const batch = req.inputFrameUpsyncBatch;
+      self.onPeerInputFrameUpsync(peerJoinIndex, batch);
+    }
+  }
+};
+
 cc.Class({
   extends: cc.Component,
 
@@ -96,16 +114,26 @@ cc.Class({
       type: cc.Integer,
       default: 4 // implies (renderFrameIdLagTolerance >> inputScaleFrames) count of inputFrameIds
     },
-    jigglingEps1D: {
-      type: cc.Float,
-      default: 1e-3
+    sendingQLabel: {
+      type: cc.Label,
+      default: null
     },
-    bulletTriggerEnabled: {
-      default: false
+    inputFrameDownsyncQLabel: {
+      type: cc.Label,
+      default: null
     },
-    closeOnForcedtoResyncNotSelf: {
-      default: true
+    peerInputFrameUpsyncQLabel: {
+      type: cc.Label,
+      default: null
     },
+    rollbackFramesLabel: {
+      type: cc.Label,
+      default: null
+    },
+    skippedRenderFrameCntLabel: {
+      type: cc.Label,
+      default: null
+    }
   },
 
   _inputFrameIdDebuggable(inputFrameId) {
@@ -184,6 +212,7 @@ cc.Class({
       // Upon resync, "self.lastUpsyncInputFrameId" might not have been updated properly.
       batchInputFrameIdSt = self.recentInputCache.StFrameId;
     }
+    self.networkDoctor.logSending(batchInputFrameIdSt, latestLocalInputFrameId);
     for (let i = batchInputFrameIdSt; i <= latestLocalInputFrameId; ++i) {
       const inputFrameDownsync = self.recentInputCache.GetByFrameId(i);
       if (null == inputFrameDownsync) {
@@ -205,7 +234,11 @@ cc.Class({
       joinIndex: self.selfPlayerInfo.JoinIndex,
       ackingInputFrameId: self.lastAllConfirmedInputFrameId,
       inputFrameUpsyncBatch: inputFrameUpsyncBatch,
+      authKey: self.selfPlayerInfo.udpTunnelAuthKey,
     }).finish();
+    if (cc.sys.isNative) {
+      DelayNoMore.UdpSession.broadcastInputFrameUpsync(reqData, window.boundRoomCapacity, self.selfPlayerInfo.JoinIndex);
+    }
     window.sendSafely(reqData);
     self.lastUpsyncInputFrameId = latestLocalInputFrameId;
     if (self.lastUpsyncInputFrameId >= self.recentInputCache.EdFrameId) {
@@ -324,7 +357,6 @@ cc.Class({
 
     self.recentRenderCache = new RingBuffer(self.renderCacheSize);
 
-    self.selfPlayerInfo = null; // This field is kept for distinguishing "self" and "others".
     self.recentInputCache = gopkgs.NewRingBufferJs((self.renderCacheSize >> 1) + 1);
 
     self.gopkgsCollisionSys = gopkgs.NewCollisionSpaceJs((self.spaceOffsetX << 1), (self.spaceOffsetY << 1), self.collisionMinStep, self.collisionMinStep);
@@ -342,14 +374,13 @@ cc.Class({
     self.othersForcedDownsyncRenderFrameDict = new Map();
     self.rdfIdToActuallyUsedInput = new Map();
 
+    self.networkDoctor = new NetworkDoctor(20);
+    self.skipRenderFrameFlag = false;
+
     self.countdownNanos = null;
     if (self.countdownLabel) {
       self.countdownLabel.string = "";
     }
-    if (self.findingPlayerNode) {
-      const findingPlayerScriptIns = self.findingPlayerNode.getComponent("FindingPlayer");
-      findingPlayerScriptIns.init();
-    }
     if (self.playersInfoNode) {
       safelyAddChild(self.widgetsAboveAllNode, self.playersInfoNode);
     }
@@ -409,6 +440,7 @@ cc.Class({
   },
 
   onLoad() {
+    cc.game.setFrameRate(60);
     cc.view.setOrientation(cc.macro.ORIENTATION_LANDSCAPE);
     cc.view.enableAutoFullScreen(true);
 
@@ -417,6 +449,7 @@ cc.Class({
     window.forceBigEndianFloatingNumDecoding = self.forceBigEndianFloatingNumDecoding;
 
     self.showCriticalCoordinateLabels = false;
+    self.showNetworkDoctorInfo = true;
 
     console.warn("+++++++ Map onLoad()");
 
@@ -454,7 +487,7 @@ cc.Class({
     self.findingPlayerNode.width = self.canvasNode.width;
     self.findingPlayerNode.height = self.canvasNode.height;
     const findingPlayerScriptIns = self.findingPlayerNode.getComponent("FindingPlayer");
-    findingPlayerScriptIns.init();
+    findingPlayerScriptIns.init(self);
 
     self.playersInfoNode = cc.instantiate(self.playersInfoPrefab);
 
@@ -476,6 +509,7 @@ cc.Class({
       console.log(`Received parsedBattleColliderInfo via ws`);
       // TODO: Upon reconnection, the backend might have already been sending down data that'd trigger "onRoomDownsyncFrame & onInputFrameDownsyncBatch", but frontend could reject those data due to "battleState != PlayerBattleState.ACTIVE".
       Object.assign(self, parsedBattleColliderInfo);
+      self.inputFrameUpsyncDelayTolerance = parsedBattleColliderInfo.inputFrameUpsyncDelayTolerance;
 
       const tiledMapIns = self.node.getComponent(cc.TiledMap);
 
@@ -483,7 +517,7 @@ cc.Class({
       const fullPathOfTmxFile = cc.js.formatStr("map/%s/map", parsedBattleColliderInfo.stageName);
       cc.loader.loadRes(fullPathOfTmxFile, cc.TiledMapAsset, (err, tmxAsset) => {
         if (null != err) {
-          console.error(err);
+          console.error(`Error occurred when loading tiled stage ${parsedBattleColliderInfo.stageName}`, err);
           return;
         }
 
@@ -532,10 +566,6 @@ cc.Class({
           const collisionBarrierIndex = (self.collisionBarrierIndexPrefix + barrierIdCounter);
           self.gopkgsCollisionSysMap[collisionBarrierIndex] = newBarrierCollider;
         }
-        self.selfPlayerInfo = JSON.parse(cc.sys.localStorage.getItem('selfPlayer'));
-        Object.assign(self.selfPlayerInfo, {
-          Id: self.selfPlayerInfo.playerId
-        });
         self.initDebugDrawers();
         const reqData = window.pb.protos.WsReq.encode({
           msgId: Date.now(),
@@ -690,6 +720,7 @@ cc.Class({
       self.lastRenderFrameIdTriggeredAt = performance.now();
       // In this case it must be true that "rdf.id > chaserRenderFrameId".
       self.chaserRenderFrameId = rdf.Id;
+      self.networkDoctor.logRollbackFrames(0);
 
       const canvasNode = self.canvasNode;
       self.ctrl = canvasNode.getComponent("TouchEventsManager");
@@ -796,6 +827,7 @@ cc.Class({
       return;
     }
 
+    self.networkDoctor.logInputFrameDownsync(batch[0].inputFrameId, batch[batch.length - 1].inputFrameId);
     let firstPredictedYetIncorrectInputFrameId = null;
     for (let k in batch) {
       const inputFrameDownsync = batch[k];
@@ -844,6 +876,7 @@ lastAllConfirmedInputFrameId=${self.lastAllConfirmedInputFrameId}
 recentInputCache=${self._stringifyRecentInputCache(false)}
 batchInputFrameIdRange=[${batch[0].inputFrameId}, ${batch[batch.length - 1].inputFrameId}]`);
     self.chaserRenderFrameId = renderFrameId1;
+    self.networkDoctor.logRollbackFrames(self.renderFrameId - self.chaserRenderFrameId);
   },
 
   onPeerInputFrameUpsync(peerJoinIndex, batch /* []*pb.InputFrameDownsync */ ) {
@@ -856,21 +889,41 @@ batchInputFrameIdRange=[${batch[0].inputFrameId}, ${batch[batch.length - 1].inpu
     if (!self.recentInputCache) {
       return;
     }
-    if (ALL_BATTLE_STATES.IN_SETTLEMENT == self.battleState) {
+    if (ALL_BATTLE_STATES.IN_BATTLE != self.battleState) {
       return;
     }
 
+    let effCnt = 0;
     //console.log(`Received peer inputFrameUpsync batch w/ inputFrameId in [${batch[0].inputFrameId}, ${batch[batch.length - 1].inputFrameId}] for prediction assistance`);
+    const renderedInputFrameIdUpper = gopkgs.ConvertToDelayedInputFrameId(self.renderFrameId);
     for (let k in batch) {
       const inputFrameDownsync = batch[k];
       const inputFrameDownsyncId = inputFrameDownsync.inputFrameId;
+      if (inputFrameDownsyncId < renderedInputFrameIdUpper) {
+        // Avoid obfuscating already rendered history
+        continue;
+      }
       if (inputFrameDownsyncId <= self.lastAllConfirmedInputFrameId) {
         continue;
       }
       self.getOrPrefabInputFrameUpsync(inputFrameDownsyncId); // Make sure that inputFrame exists locally
       const existingInputFrame = self.recentInputCache.GetByFrameId(inputFrameDownsyncId);
-      existingInputFrame.InputList[peerJoinIndex - 1] = inputFrameDownsync.inputList[peerJoinIndex - 1]; // No need to change "confirmedList", leave it to "onInputFrameDownsyncBatch" -- we're just helping prediction here
-      self.recentInputCache.SetByFrameId(existingInputFrame, inputFrameDownsyncId);
+      if (0 < (existingInputFrame.ConfirmedList & (1 << (peerJoinIndex - 1)))) {
+        continue;
+      }
+      effCnt += 1;
+      // the returned "gopkgs.NewInputFrameDownsync.InputList" is immutable, thus we can only modify the values in "newInputList" and "newConfirmedList"!
+      let newInputList = new Array(self.playerRichInfoDict.size).fill(0);
+      for (let i in existingInputFrame.InputList) {
+        newInputList[i] = existingInputFrame.InputList[i];
+      }
+      let newConfirmedList = (existingInputFrame.confirmedList | (1 << (peerJoinIndex - 1)));
+      // No need to change "lastAllConfirmedInputFrameId", leave it to "onInputFrameDownsyncBatch" -- we're just helping prediction here
+      const newInputFrameDownsyncLocal = gopkgs.NewInputFrameDownsync(inputFrameDownsyncId, newInputList, newConfirmedList);
+      self.recentInputCache.SetByFrameId(newInputFrameDownsyncLocal, inputFrameDownsyncId);
+    }
+    if (0 < effCnt) {
+      self.networkDoctor.logPeerInputFrameUpsync(batch[0].inputFrameId, batch[batch.length - 1].inputFrameId);
     }
   },
 
@@ -890,7 +943,7 @@ batchInputFrameIdRange=[${batch[0].inputFrameId}, ${batch[batch.length - 1].inpu
       return;
     }
     self._stringifyRdfIdToActuallyUsedInput();
-    window.closeWSConnection(constants.RET_CODE.BATTLE_STOPPED);
+    window.closeWSConnection(constants.RET_CODE.BATTLE_STOPPED, "");
     self.battleState = ALL_BATTLE_STATES.IN_SETTLEMENT;
     self.countdownNanos = null;
     if (self.musicEffectManagerScriptIns) {
@@ -945,6 +998,11 @@ batchInputFrameIdRange=[${batch[0].inputFrameId}, ${batch[batch.length - 1].inpu
 
       Kindly note that Significantly different network bandwidths or delay fluctuations would result in frequent [type#1 forceConfirmation] too, but CAUSE FROM DIFFERENT LOCAL "update(dt)" RATE SHOULD BE THE FIRST TO INVESTIGATE AND ELIMINATE -- because we have control on it, but no one has control on the internet. 
       */
+      if (self.skipRenderFrameFlag) {
+        self.networkDoctor.logSkippedRenderFrameCnt();
+        self.skipRenderFrameFlag = false;
+        return;
+      }
       try {
         let st = performance.now();
         const noDelayInputFrameId = gopkgs.ConvertToNoDelayInputFrameId(self.renderFrameId);
@@ -981,6 +1039,7 @@ batchInputFrameIdRange=[${batch[0].inputFrameId}, ${batch[batch.length - 1].inpu
 
         // Inside the following "self.rollbackAndChase" actually ROLLS FORWARD w.r.t. the corresponding delayedInputFrame, REGARDLESS OF whether or not "self.chaserRenderFrameId == self.renderFrameId" now. 
         const latestRdfResults = self.rollbackAndChase(self.renderFrameId, self.renderFrameId + 1, self.gopkgsCollisionSys, self.gopkgsCollisionSysMap, false);
+        self.networkDoctor.logRollbackFrames(self.renderFrameId - self.chaserRenderFrameId);
         let prevRdf = latestRdfResults[0],
           rdf = latestRdfResults[1];
         /*
@@ -1005,9 +1064,13 @@ othersForcedDownsyncRenderFrame=${JSON.stringify(othersForcedDownsyncRenderFrame
         }
         self.applyRoomDownsyncFrameDynamics(rdf, prevRdf);
         self.showDebugBoundaries(rdf);
+        if (self.showNetworkDoctorInfo) {
+          self.showNetworkDoctorLabels();
+        }
         ++self.renderFrameId; // [WARNING] It's important to increment the renderFrameId AFTER all the operations above!!!
         self.lastRenderFrameIdTriggeredAt = performance.now();
         let t3 = performance.now();
+        self.skipRenderFrameFlag = self.networkDoctor.isTooFast();
       } catch (err) {
         console.error("Error during Map.update", err);
         self.onBattleStopped(); // TODO: Popup to ask player to refresh browser
@@ -1031,6 +1094,7 @@ othersForcedDownsyncRenderFrame=${JSON.stringify(othersForcedDownsyncRenderFrame
   logout(byClick /* The case where this param is "true" will be triggered within `ConfirmLogout.js`.*/ , shouldRetainBoundRoomIdInBothVolatileAndPersistentStorage) {
     const self = this;
     const localClearance = () => {
+      window.closeWSConnection(constants.RET_CODE.BATTLE_STOPPED, "");
       window.clearLocalStorageAndBackToLoginScene(shouldRetainBoundRoomIdInBothVolatileAndPersistentStorage);
     }
 
@@ -1233,24 +1297,6 @@ othersForcedDownsyncRenderFrame=${JSON.stringify(othersForcedDownsyncRenderFrame
       }
       const j = gopkgs.ConvertToDelayedInputFrameId(i);
       const delayedInputFrame = self.recentInputCache.GetByFrameId(j);
-      /*
-      const prevJ = gopkgs.ConvertToDelayedInputFrameId(i - 1);
-      const prevDelayedInputFrame = self.recentInputCache.GetByFrameId(prevJ);
-      const prevBtnALevel = (null == prevDelayedInputFrame ? 0 : ((prevDelayedInputFrame.InputList[self.selfPlayerInfo.JoinIndex - 1] >> 4) & 1));
-      const btnALevel = ((delayedInputFrame.InputList[self.selfPlayerInfo.JoinIndex - 1] >> 4) & 1);
-      if (
-          ATK_CHARACTER_STATE.Atk1[0] == currRdf.PlayersArr[self.selfPlayerInfo.JoinIndex - 1].CharacterState
-          ||
-          ATK_CHARACTER_STATE.Atk2[0] == currRdf.PlayersArr[self.selfPlayerInfo.JoinIndex - 1].CharacterState
-        ) {
-          console.log(`rdf.Id=${i}, (btnALevel,j)=(${btnALevel},${j}), (prevBtnALevel,prevJ) is (${prevBtnALevel},${prevJ}), in cancellable atk!`);
-      } 
-      if (btnALevel > 0) {
-        if (btnALevel > prevBtnALevel) {
-          console.log(`rdf.Id=${i}, rising edge of btnA triggered`);
-        }
-      }  
-      */
 
       if (self.frameDataLoggingEnabled) {
         const actuallyUsedInputClone = delayedInputFrame.InputList.slice();
@@ -1296,7 +1342,7 @@ othersForcedDownsyncRenderFrame=${JSON.stringify(othersForcedDownsyncRenderFrame
 
       const selfPlayerId = self.selfPlayerInfo.Id;
       if (selfPlayerId == playerId) {
-        self.selfPlayerInfo.JoinIndex = immediatePlayerInfo.JoinIndex;
+        self.selfPlayerInfo.JoinIndex = immediatePlayerInfo.JoinIndex; // Update here in case of any change during WAITING phase
         nodeAndScriptIns[1].showArrowTipNode();
       }
     }
@@ -1499,4 +1545,44 @@ actuallyUsedinputList:{${self.inputFrameDownsyncStr(actuallyUsedInputClone)}}`);
       }
     }
   },
+
+  showNetworkDoctorLabels() {
+    const self = this;
+    const [sendingFps, srvDownsyncFps, peerUpsyncFps, rollbackFrames, skippedRenderFrameCnt] = self.networkDoctor.stats();
+    if (self.sendingQLabel) {
+      self.sendingQLabel.string = `${sendingFps} fps sending`;
+      if (sendingFps < self.networkDoctor.inputRateThreshold) {
+        self.sendingQLabel.node.color = cc.Color.RED;
+      } else {
+        self.sendingQLabel.node.color = cc.Color.WHITE;
+      }
+    }
+    if (self.inputFrameDownsyncQLabel) {
+      self.inputFrameDownsyncQLabel.string = `${srvDownsyncFps} fps srv-downsync`;
+      if (srvDownsyncFps < self.networkDoctor.inputRateThreshold) {
+        self.inputFrameDownsyncQLabel.node.color = cc.Color.RED;
+      } else {
+        self.inputFrameDownsyncQLabel.node.color = cc.Color.WHITE;
+      }
+    }
+    if (self.peerInputFrameUpsyncQLabel) {
+      self.peerInputFrameUpsyncQLabel.string = `${peerUpsyncFps} fps peer-upsync`;
+      if (peerUpsyncFps > self.networkDoctor.peerUpsyncFps) {
+        self.peerInputFrameUpsyncQLabel.node.color = cc.Color.RED;
+      } else {
+        self.peerInputFrameUpsyncQLabel.node.color = cc.Color.WHITE;
+      }
+    }
+    if (self.rollbackFramesLabel) {
+      self.rollbackFramesLabel.string = `rollbackFrames: ${rollbackFrames}`
+      if (rollbackFrames > self.networkDoctor.rollbackFramesThreshold) {
+        self.rollbackFramesLabel.node.color = cc.Color.RED;
+      } else {
+        self.rollbackFramesLabel.node.color = cc.Color.WHITE;
+      }
+    }
+    if (self.skippedRenderFrameCntLabel) {
+      self.skippedRenderFrameCntLabel.string = `${skippedRenderFrameCnt} frames skipped`
+    }
+  },
 });

frontend/assets/scripts/NetworkDoctor.js

@@ -0,0 +1,98 @@
+const RingBuffer = require('./RingBuffer');
+
+var NetworkDoctor = function(capacity) {
+  this.reset(capacity);
+};
+
+NetworkDoctor.prototype.reset = function(capacity) {
+  this.sendingQ = new RingBuffer(capacity);
+  this.inputFrameDownsyncQ = new RingBuffer(capacity);
+  this.peerInputFrameUpsyncQ = new RingBuffer(capacity);
+  this.peerInputFrameUpsyncCnt = 0;
+  this.immediateRollbackFrames = 0;
+  this.skippedRenderFrameCnt = 0;
+
+  this.inputRateThreshold = gopkgs.ConvertToNoDelayInputFrameId(60);
+  this.peerUpsyncThreshold = 8;
+  this.rollbackFramesThreshold = 8; // Roughly the minimum "TurnAroundFramesToRecover".
+};
+
+NetworkDoctor.prototype.logSending = function(stFrameId, edFrameId) {
+  this.sendingQ.put({
+    i: stFrameId,
+    j: edFrameId,
+    t: Date.now()
+  });
+};
+
+NetworkDoctor.prototype.logInputFrameDownsync = function(stFrameId, edFrameId) {
+  this.inputFrameDownsyncQ.put({
+    i: stFrameId,
+    j: edFrameId,
+    t: Date.now()
+  });
+};
+
+NetworkDoctor.prototype.logPeerInputFrameUpsync = function(stFrameId, edFrameId) {
+  const firstPopped = this.peerInputFrameUpsyncQ.put({
+    i: stFrameId,
+    j: edFrameId,
+    t: Date.now()
+  });
+  if (null != firstPopped) {
+    this.peerInputFrameUpsyncCnt -= (firstPopped.j - firstPopped.i + 1);
+  }
+  this.peerInputFrameUpsyncCnt += (edFrameId - stFrameId + 1);
+};
+
+NetworkDoctor.prototype.logRollbackFrames = function(x) {
+  this.immediateRollbackFrames = x;
+};
+
+NetworkDoctor.prototype.stats = function() {
+  let sendingFps = 0,
+    srvDownsyncFps = 0,
+    peerUpsyncFps = 0,
+    rollbackFrames = this.immediateRollbackFrames;
+  if (1 < this.sendingQ.cnt) {
+    const st = this.sendingQ.getByFrameId(this.sendingQ.stFrameId);
+    const ed = this.sendingQ.getByFrameId(this.sendingQ.edFrameId - 1);
+    const elapsedMillis = ed.t - st.t;
+    sendingFps = Math.round((ed.j - st.i) * 1000 / elapsedMillis);
+  }
+  if (1 < this.inputFrameDownsyncQ.cnt) {
+    const st = this.inputFrameDownsyncQ.getByFrameId(this.inputFrameDownsyncQ.stFrameId);
+    const ed = this.inputFrameDownsyncQ.getByFrameId(this.inputFrameDownsyncQ.edFrameId - 1);
+    const elapsedMillis = ed.t - st.t;
+    srvDownsyncFps = Math.round((ed.j - st.i) * 1000 / elapsedMillis);
+  }
+  if (1 < this.peerInputFrameUpsyncQ.cnt) {
+    const st = this.peerInputFrameUpsyncQ.getByFrameId(this.peerInputFrameUpsyncQ.stFrameId);
+    const ed = this.peerInputFrameUpsyncQ.getByFrameId(this.peerInputFrameUpsyncQ.edFrameId - 1);
+    const elapsedMillis = ed.t - st.t;
+    peerUpsyncFps = Math.round(this.peerInputFrameUpsyncCnt * 1000 / elapsedMillis);
+  }
+  return [sendingFps, srvDownsyncFps, peerUpsyncFps, rollbackFrames, this.skippedRenderFrameCnt];
+};
+
+NetworkDoctor.prototype.logSkippedRenderFrameCnt = function() {
+  this.skippedRenderFrameCnt += 1;
+}
+
+NetworkDoctor.prototype.isTooFast = function() {
+  return false;
+  const [sendingFps, srvDownsyncFps, peerUpsyncFps, rollbackFrames, skippedRenderFrameCnt] = this.stats();
+  if (sendingFps >= this.inputRateThreshold + 2) {
+    // Don't send too fast
+    return true;
+  } else if (sendingFps >= this.inputRateThreshold && srvDownsyncFps >= this.inputRateThreshold) {
+    // An outstanding lag within the "inputFrameDownsyncQ" will reduce "srvDownsyncFps", HOWEVER, a constant lag wouldn't impact "srvDownsyncFps"! In native platforms we might use PING value might help as a supplement information to confirm that the "selfPlayer" is not lagged within the time accounted by "inputFrameDownsyncQ".  
+    if (rollbackFrames >= this.rollbackFramesThreshold) {
+      // I got many frames rolled back while none of my peers effectively helped my preciction. Deliberately not using "peerUpsyncThreshold" here because when using UDP p2p upsync broadcasting, we expect to receive effective p2p upsyncs from every other player.   
+      return true;
+    }
+  }
+  return false;
+};
+
+module.exports = NetworkDoctor;

frontend/assets/scripts/NetworkDoctor.js.meta

@@ -1,6 +1,6 @@
 {
   "ver": "1.0.5",
-  "uuid": "477c07c3-0d50-4d55-96f0-6eaf9f25e2da",
+  "uuid": "affd726a-02f0-4079-aace-39fe525d7478",
   "isPlugin": false,
   "loadPluginInWeb": true,
   "loadPluginInNative": true,

frontend/assets/scripts/OfflineMap.js

@@ -11,11 +11,13 @@ cc.Class({
   },
 
   onLoad() {
+    cc.game.setFrameRate(60);
     cc.view.setOrientation(cc.macro.ORIENTATION_LANDSCAPE);
     cc.view.enableAutoFullScreen(true);
     const self = this;
     window.mapIns = self;
     self.showCriticalCoordinateLabels = false;
+    self.showNetworkDoctorInfo = true;
 
     const mapNode = self.node;
     const canvasNode = mapNode.parent;
@@ -96,7 +98,7 @@ cc.Class({
       const p2Vpos = gopkgs.WorldToVirtualGridPos(boundaryObjs.playerStartingPositions[1].x, boundaryObjs.playerStartingPositions[1].y);
       const colliderRadiusV = gopkgs.WorldToVirtualGridPos(12.0, 0);
 
-      const speciesIdList = [4096, 1];
+      const speciesIdList = [1, 4096];
       const chConfigsOrderedByJoinIndex = gopkgs.GetCharacterConfigsOrderedByJoinIndex(speciesIdList);
 
       const startRdf = window.pb.protos.RoomDownsyncFrame.create({
@@ -142,6 +144,35 @@ cc.Class({
         Id: 10,
         JoinIndex: 1,
       };
+      if (cc.sys.isNative) {
+        window.onUdpMessage = (args) => {
+          const len = args.length;
+          const ui8Arr = new Uint8Array(len);
+          for (let i = 0; i < len; i++) {
+            ui8Arr[i] = args.charCodeAt(i);
+          }
+          cc.log(`#1 Js called back by CPP: onUdpMessage: args=${args}, typeof(args)=${typeof (args)}, argslen=${args.length}, ui8Arr=${ui8Arr}`);
+          const echoed = window.pb.protos.HolePunchUpsync.decode(ui8Arr);
+          cc.log(`#2 Js called back by CPP: onUdpMessage: ${JSON.stringify(echoed)}`);
+        };
+        const res1 = DelayNoMore.UdpSession.openUdpSession(8888 + self.selfPlayerInfo.JoinIndex);
+        const holePunchData = window.pb.protos.HolePunchUpsync.encode({
+          boundRoomId: 22,
+          intAuthToken: "foobar",
+          authKey: Math.floor(Math.random() * 65535),
+        }).finish()
+        //const res2 = DelayNoMore.UdpSession.punchToServer("127.0.0.1", 3000, holePunchData, 19999, holePunchData);
+        const res3 = DelayNoMore.UdpSession.upsertPeerUdpAddr([window.pb.protos.PeerUdpAddr.create({
+          ip: "192.168.31.194",
+          port: 6789,
+          authKey: 123456,
+        }), window.pb.protos.PeerUdpAddr.create({
+          ip: "192.168.1.101",
+          port: 8771,
+          authKey: 654321,
+        })], 2, self.selfPlayerInfo.JoinIndex);
+      //const res4 = DelayNoMore.UdpSession.closeUdpSession();
+      }
       self.onRoomDownsyncFrame(startRdf);
 
       self.battleState = ALL_BATTLE_STATES.IN_BATTLE;
@@ -152,12 +183,6 @@ cc.Class({
   update(dt) {
     const self = this;
     if (ALL_BATTLE_STATES.IN_BATTLE == self.battleState) {
-      const elapsedMillisSinceLastFrameIdTriggered = performance.now() - self.lastRenderFrameIdTriggeredAt;
-      if (elapsedMillisSinceLastFrameIdTriggered < self.tooFastDtIntervalMillis) {
-        // [WARNING] We should avoid a frontend ticking too fast to prevent cheating, as well as ticking too slow to cause a "resync avalanche" that impacts user experience!
-        // console.debug("Avoiding too fast frame@renderFrameId=", self.renderFrameId, ": elapsedMillisSinceLastFrameIdTriggered=", elapsedMillisSinceLastFrameIdTriggered);
-        //return;
-      }
       try {
         let st = performance.now();
         let prevSelfInput = null,

frontend/assets/scripts/RingBuffer.js

@@ -13,9 +13,12 @@ var RingBuffer = function(capacity) {
 };
 
 RingBuffer.prototype.put = function(item) {
+  let firstPopped = null;
   while (0 < this.cnt && this.cnt >= this.n) {
     // Make room for the new element
-    this.pop();
+    const popped = this.pop();
+    if (null == firstPopped)
+      firstPopped = popped;
   }
   this.eles[this.ed] = item
   this.edFrameId++;
@@ -24,6 +27,7 @@ RingBuffer.prototype.put = function(item) {
   if (this.ed >= this.n) {
     this.ed -= this.n; // Deliberately not using "%" operator for performance concern
   }
+  return firstPopped;
 };
 
 RingBuffer.prototype.pop = function() {

frontend/assets/scripts/WsSessionMgr.js

@@ -12,6 +12,7 @@ window.DOWNSYNC_MSG_ACT_INPUT_BATCH = 2;
 window.DOWNSYNC_MSG_ACT_BATTLE_STOPPED = 3;
 window.DOWNSYNC_MSG_ACT_FORCED_RESYNC = 4;
 window.DOWNSYNC_MSG_ACT_PEER_INPUT_BATCH = 5;
+window.DOWNSYNC_MSG_ACT_PEER_UDP_ADDR = 6;
 
 window.sendSafely = function(msgStr) {
   /**
@@ -33,7 +34,7 @@ window.closeWSConnection = function(code, reason) {
     console.log(`"window.clientSession" is already closed or destroyed.`);
     return;
   }
-  console.log(`Closing "window.clientSession" from the client-side.`);
+  console.log(`Closing "window.clientSession" from the client-side with code=${code}.`);
   window.clientSession.close(code, reason);
 }
 
@@ -43,12 +44,24 @@ window.getBoundRoomIdFromPersistentStorage = function() {
     window.clearBoundRoomIdInBothVolatileAndPersistentStorage();
     return null;
   }
-  return cc.sys.localStorage.getItem("boundRoomId");
+  const boundRoomIdStr = cc.sys.localStorage.getItem("boundRoomId");
+  return (null == boundRoomIdStr ? null : parseInt(boundRoomIdStr));
+};
+
+window.getBoundRoomCapacityFromPersistentStorage = function() {
+  const boundRoomIdExpiresAt = parseInt(cc.sys.localStorage.getItem("boundRoomIdExpiresAt"));
+  if (!boundRoomIdExpiresAt || Date.now() >= boundRoomIdExpiresAt) {
+    window.clearBoundRoomIdInBothVolatileAndPersistentStorage();
+    return null;
+  }
+  const boundRoomCapacityStr = cc.sys.localStorage.getItem("boundRoomCapacity");
+  return (null == boundRoomCapacityStr ? null : parseInt(boundRoomCapacityStr));
 };
 
 window.clearBoundRoomIdInBothVolatileAndPersistentStorage = function() {
   window.boundRoomId = null;
   cc.sys.localStorage.removeItem("boundRoomId");
+  cc.sys.localStorage.removeItem("boundRoomCapacity");
   cc.sys.localStorage.removeItem("boundRoomIdExpiresAt");
 };
 
@@ -57,18 +70,51 @@ window.clearSelfPlayer = function() {
 };
 
 window.boundRoomId = getBoundRoomIdFromPersistentStorage();
+window.boundRoomCapacity = getBoundRoomCapacityFromPersistentStorage();
 window.handleHbRequirements = function(resp) {
+  console.log(`Handle hb requirements #1`);
   if (constants.RET_CODE.OK != resp.ret) return;
-  if (null == window.boundRoomId) {
+  // The assignment of "window.mapIns" is inside "Map.onLoad", which precedes "initPersistentSessionClient".
+  window.mapIns.selfPlayerInfo = JSON.parse(cc.sys.localStorage.getItem('selfPlayer')); // This field is kept for distinguishing "self" and "others".
+  window.mapIns.selfPlayerInfo.Id = window.mapIns.selfPlayerInfo.playerId;
+  window.mapIns.selfPlayerInfo.JoinIndex = resp.peerJoinIndex;
+  console.log(`Handle hb requirements #2`);
+  if (null == window.boundRoomId || null == window.boundRoomCapacity) {
     window.boundRoomId = resp.bciFrame.boundRoomId;
+    window.boundRoomCapacity = resp.bciFrame.boundRoomCapacity;
     cc.sys.localStorage.setItem('boundRoomId', window.boundRoomId);
+    cc.sys.localStorage.setItem('boundRoomCapacity', window.boundRoomCapacity);
     cc.sys.localStorage.setItem('boundRoomIdExpiresAt', Date.now() + 10 * 60 * 1000); // Temporarily hardcoded, for `boundRoomId` only.
   }
-
+  console.log(`Handle hb requirements #3`);
   if (window.handleBattleColliderInfo) {
-    window.initSecondarySession(null, window.boundRoomId);
     window.handleBattleColliderInfo(resp.bciFrame);
   }
+  console.log(`Handle hb requirements #4`);
+
+  if (!cc.sys.isNative) {
+    console.log(`Handle hb requirements #5, web`);
+    window.initSecondarySession(null, window.boundRoomId);
+  } else {
+    console.log(`Handle hb requirements #5, native, bciFrame.battleUdpTunnel=${resp.bciFrame.battleUdpTunnel}, selfPlayerInfo=${JSON.stringify(window.mapIns.selfPlayerInfo)}`);
+    const res1 = DelayNoMore.UdpSession.openUdpSession(8888 + window.mapIns.selfPlayerInfo.JoinIndex);
+    window.mapIns.selfPlayerInfo.udpTunnelAuthKey = resp.bciFrame.battleUdpTunnel.authKey;
+    const intAuthToken = window.mapIns.selfPlayerInfo.intAuthToken;
+    const authKey = Math.floor(Math.random() * 65535);
+    window.mapIns.selfPlayerInfo.authKey = authKey;
+    const holePunchData = window.pb.protos.HolePunchUpsync.encode({
+      boundRoomId: window.boundRoomId,
+      intAuthToken: intAuthToken,
+      authKey: authKey,
+    }).finish();
+    const udpTunnelHolePunchData = window.pb.protos.WsReq.encode({
+      msgId: Date.now(),
+      playerId: window.mapIns.selfPlayerInfo.Id,
+      act: window.UPSYNC_MSG_ACT_PLAYER_CMD,
+      authKey: resp.bciFrame.battleUdpTunnel.authKey,
+    }).finish();
+    const res2 = DelayNoMore.UdpSession.punchToServer(backendAddress.HOST, 3000, holePunchData, resp.bciFrame.battleUdpTunnel.port, udpTunnelHolePunchData);
+  }
 };
 
 function _uint8ToBase64(uint8Arr) {
@@ -126,6 +172,7 @@ window.initPersistentSessionClient = function(onopenCb, expectedRoomId) {
     urlToConnect = urlToConnect + "&expectedRoomId=" + expectedRoomId;
   } else {
     window.boundRoomId = getBoundRoomIdFromPersistentStorage();
+    window.boundRoomCapacity = getBoundRoomCapacityFromPersistentStorage();
     if (null != window.boundRoomId) {
       console.log("initPersistentSessionClient with boundRoomId == " + boundRoomId);
       urlToConnect = urlToConnect + "&boundRoomId=" + window.boundRoomId;
@@ -176,6 +223,15 @@ window.initPersistentSessionClient = function(onopenCb, expectedRoomId) {
           }
           mapIns.onRoomDownsyncFrame(resp.rdf, resp.inputFrameDownsyncBatch);
           break;
+        case window.DOWNSYNC_MSG_ACT_PEER_UDP_ADDR:
+          console.warn(`Got DOWNSYNC_MSG_ACT_PEER_UDP_ADDR resp=${JSON.stringify(resp, null, 2)}`);
+          if (cc.sys.isNative) {
+            const peerJoinIndex = resp.peerJoinIndex;
+            const peerAddrList = resp.rdf.peerUdpAddrList;
+            console.log(`Got DOWNSYNC_MSG_ACT_PEER_UDP_ADDR peerAddrList=${JSON.stringify(peerAddrList)}; boundRoomCapacity=${window.boundRoomCapacity}`);
+            DelayNoMore.UdpSession.upsertPeerUdpAddr(peerAddrList, window.boundRoomCapacity, window.mapIns.selfPlayerInfo.JoinIndex); // In C++ impl it actually broadcasts the peer-punching message to all known peers within "window.boundRoomCapacity"
+          }
+          break;
         default:
           break;
       }
@@ -192,6 +248,12 @@ window.initPersistentSessionClient = function(onopenCb, expectedRoomId) {
   clientSession.onclose = function(evt) {
     // [WARNING] The callback "onclose" might be called AFTER the webpage is refreshed with "1001 == evt.code".
     console.warn(`The WS clientSession is closed: evt=${JSON.stringify(evt)}, evt.code=${evt.code}`);
+    if (cc.sys.isNative) {
+      if (mapIns.frameDataLoggingEnabled) {
+        console.warn(`${mapIns._stringifyRdfIdToActuallyUsedInput()}`);
+      }
+      DelayNoMore.UdpSession.closeUdpSession();
+    }
     switch (evt.code) {
       case constants.RET_CODE.CLIENT_MISMATCHED_RENDER_FRAME:
         break;
@@ -213,7 +275,7 @@ window.initPersistentSessionClient = function(onopenCb, expectedRoomId) {
       case constants.RET_CODE.MYSQL_ERROR:
       case constants.RET_CODE.PLAYER_NOT_FOUND:
       case constants.RET_CODE.PLAYER_CHEATING:
-      case 1006: // Peer(i.e. the backend) gone unexpectedly 
+      case 1006: // Peer(i.e. the backend) gone unexpectedly, but not working for "cc.sys.isNative" 
         if (mapIns.frameDataLoggingEnabled) {
           console.warn(`${mapIns._stringifyRdfIdToActuallyUsedInput()}`);
         }
@@ -227,16 +289,15 @@ window.initPersistentSessionClient = function(onopenCb, expectedRoomId) {
 
 window.clearLocalStorageAndBackToLoginScene = function(shouldRetainBoundRoomIdInBothVolatileAndPersistentStorage) {
   console.warn("+++++++ Calling `clearLocalStorageAndBackToLoginScene`");
+  window.clearSelfPlayer();
+  if (true != shouldRetainBoundRoomIdInBothVolatileAndPersistentStorage) {
+    window.clearBoundRoomIdInBothVolatileAndPersistentStorage();
+  }
 
   if (window.mapIns && window.mapIns.musicEffectManagerScriptIns) {
     window.mapIns.musicEffectManagerScriptIns.stopAllMusic();
   }
 
-  window.closeWSConnection();
-  window.clearSelfPlayer();
-  if (true != shouldRetainBoundRoomIdInBothVolatileAndPersistentStorage) {
-    window.clearBoundRoomIdInBothVolatileAndPersistentStorage();
-  }
   cc.director.loadScene('login');
 };
 

frontend/assets/scripts/modules/jsexport.js.meta

@@ -1,7 +1,7 @@
 {
   "ver": "1.0.5",
   "uuid": "40edd08e-316c-44b8-a50f-bd173554c554",
-  "isPlugin": true,
+  "isPlugin": false,
   "loadPluginInWeb": true,
   "loadPluginInNative": true,
   "loadPluginInEditor": false,

frontend/build-templates/jsb-link/cocos-project-template.json

@@ -0,0 +1,75 @@
+{
+    "do_default": {
+        "exclude_from_template": [
+            "frameworks/runtime-src"
+        ]
+    },
+    "do_add_native_support": {
+        "append_from_template": {
+            "from": "frameworks/runtime-src",
+            "to": "frameworks/runtime-src",
+            "exclude": [
+                "proj.win32/Debug.win32",
+                "proj.win32/Release.win32",
+                "proj.win32/DelayNoMore.sdf"
+            ]
+        },
+        "append_file": [{
+            "from": "cocos/scripting/js-bindings/manual/jsb_module_register.cpp",
+            "to": "frameworks/runtime-src/Classes/jsb_module_register.cpp"
+        }, {
+            "from": "frameworks/runtime-src/Classes/udp_session.hpp",
+            "to": "frameworks/runtime-src/Classes/udp_session.hpp"
+        }, {
+            "from": "frameworks/runtime-src/Classes/udp_session.cpp",
+            "to": "frameworks/runtime-src/Classes/udp_session.cpp"
+        }, {
+            "from": "frameworks/runtime-src/Classes/udp_session_bridge.hpp",
+            "to": "frameworks/runtime-src/Classes/udp_session_bridge.hpp"
+        }, {
+            "from": "frameworks/runtime-src/Classes/udp_session_bridge.cpp",
+            "to": "frameworks/runtime-src/Classes/udp_session_bridge.cpp"
+        }],
+        "project_rename": {
+            "src_project_name": "DelayNoMore",
+            "files": [
+                "frameworks/runtime-src/proj.win32/PROJECT_NAME.vcxproj",
+                "frameworks/runtime-src/proj.win32/PROJECT_NAME.vcxproj.filters",
+                "frameworks/runtime-src/proj.win32/PROJECT_NAME.vcxproj.user",
+                "frameworks/runtime-src/proj.win32/PROJECT_NAME.sln"
+            ]
+        },
+        "project_replace_project_name": {
+            "src_project_name": "DelayNoMore",
+            "files": [
+                "frameworks/runtime-src/proj.win32/PROJECT_NAME.vcxproj",
+                "frameworks/runtime-src/proj.win32/PROJECT_NAME.vcxproj.filters",
+                "frameworks/runtime-src/proj.win32/PROJECT_NAME.vcxproj.user",
+                "frameworks/runtime-src/proj.win32/PROJECT_NAME.sln",
+                "frameworks/runtime-src/proj.win32/main.cpp",
+                "frameworks/runtime-src/proj.android-studio/settings.gradle",
+                "frameworks/runtime-src/proj.android-studio/app/res/values/strings.xml",
+                "frameworks/runtime-src/Classes/AppDelegate.cpp"
+            ]
+        },
+        "project_replace_package_name": {
+            "src_package_name": "org.genxium.delaynomore",
+            "files": [
+                "frameworks/runtime-src/proj.android-studio/app/build.gradle",
+                "frameworks/runtime-src/proj.android-studio/app/AndroidManifest.xml"
+            ]
+        },
+        "project_replace_mac_bundleid": {
+            "src_bundle_id": "org.genxium.delaynomore",
+            "files": [
+                "frameworks/runtime-src/proj.ios_mac/mac/Info.plist"
+            ]
+        },
+        "project_replace_ios_bundleid": {
+            "src_bundle_id": "org.genxium.delaynomore",
+            "files": [
+                "frameworks/runtime-src/proj.ios_mac/ios/Info.plist"
+            ]
+        }
+    }
+}

frontend/build-templates/jsb-link/frameworks/runtime-src/Classes/AppDelegate.cpp

@@ -0,0 +1,93 @@
+/****************************************************************************
+ Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.
+ 
+ http://www.cocos.com
+ 
+ Permission is hereby granted, free of charge, to any person obtaining a copy
+ of this software and associated engine source code (the "Software"), a limited,
+ worldwide, royalty-free, non-assignable, revocable and non-exclusive license
+ to use Cocos Creator solely to develop games on your target platforms. You shall
+ not use Cocos Creator software for developing other software or tools that's
+ used for developing games. You are not granted to publish, distribute,
+ sublicense, and/or sell copies of Cocos Creator.
+ 
+ The software or tools in this License Agreement are licensed, not sold.
+ Xiamen Yaji Software Co., Ltd. reserves all rights not expressly granted to you.
+ 
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ THE SOFTWARE.
+ ****************************************************************************/
+
+#include "AppDelegate.h"
+
+#include "cocos2d.h"
+
+#include "cocos/audio/include/AudioEngine.h"
+#include "cocos/scripting/js-bindings/manual/jsb_module_register.hpp"
+#include "cocos/scripting/js-bindings/manual/jsb_global.h"
+#include "cocos/scripting/js-bindings/jswrapper/SeApi.h"
+#include "cocos/scripting/js-bindings/event/EventDispatcher.h"
+#include "cocos/scripting/js-bindings/manual/jsb_classtype.hpp"
+#include "udp_session_bridge.hpp"
+USING_NS_CC;
+
+AppDelegate::AppDelegate(int width, int height) : Application("Cocos Game", width, height)
+{
+}
+
+AppDelegate::~AppDelegate()
+{
+}
+
+bool AppDelegate::applicationDidFinishLaunching()
+{
+    se::ScriptEngine *se = se::ScriptEngine::getInstance();
+    
+    jsb_set_xxtea_key("");
+    jsb_init_file_operation_delegate();
+    
+#if defined(COCOS2D_DEBUG) && (COCOS2D_DEBUG > 0)
+    // Enable debugger here
+    jsb_enable_debugger("0.0.0.0", 6086, false);
+#endif
+    
+    se->setExceptionCallback([](const char *location, const char *message, const char *stack) {
+        // Send exception information to server like Tencent Bugly.
+    });
+    
+    jsb_register_all_modules();
+    se->addRegisterCallback(registerUdpSession);
+    
+    se->start();
+    
+    se::AutoHandleScope hs;
+    jsb_run_script("jsb-adapter/jsb-builtin.js");
+    jsb_run_script("main.js");
+    
+    se->addAfterCleanupHook([]() {
+        JSBClassType::destroy();
+    });
+    
+    return true;
+}
+
+// This function will be called when the app is inactive. When comes a phone call,it's be invoked too
+void AppDelegate::applicationDidEnterBackground()
+{
+    EventDispatcher::dispatchEnterBackgroundEvent();
+    // Ensure that handle AudioEngine enter background after all enter background events are handled
+    AudioEngine::onEnterBackground();
+}
+
+// this function will be called when the app is active again
+void AppDelegate::applicationWillEnterForeground()
+{
+    // Ensure that handle AudioEngine enter foreground before all enter foreground events are handled
+    AudioEngine::onEnterForeground();
+    EventDispatcher::dispatchEnterForegroundEvent();
+}

frontend/build-templates/jsb-link/frameworks/runtime-src/Classes/udp_session.cpp

@@ -0,0 +1,406 @@
+#include "udp_session.hpp"
+#include "base/ccMacros.h"
+#include "cocos/platform/CCApplication.h"
+#include "cocos/base/CCScheduler.h"
+#include "cocos/scripting/js-bindings/jswrapper/SeApi.h"
+
+uv_udp_t* udpSocket = NULL;
+uv_thread_t recvTid;
+uv_timer_t peerPunchTimer;
+uv_async_t uvLoopStopSig;
+uv_loop_t* loop = NULL; // Only this loop is used for this simple PoC
+
+struct PeerAddr peerAddrList[maxPeerCnt];
+
+char SRV_IP[256];
+int SRV_PORT = 0;
+int UDP_TUNNEL_SRV_PORT = 0;
+struct PeerAddr udpTunnelAddr;
+
+void _onRead(uv_udp_t* req, ssize_t nread, uv_buf_t const* buf, struct sockaddr const* addr, unsigned flags) {
+    if (nread < 0) {
+        CCLOGERROR("Read error %s", uv_err_name(nread));
+        uv_close((uv_handle_t*)req, NULL);
+        free(buf->base);
+        return;
+    }
+    char ip[INET_ADDRSTRLEN];
+    memset(ip, 0, sizeof ip);
+    int port = 0; 
+
+    if (NULL != addr) {
+        // The null check for "addr" is necessary, on Android there'd be such mysterious call to "_onRead"!
+        switch (addr->sa_family) {
+        case AF_INET: {
+            struct sockaddr_in const* sockAddr = (struct sockaddr_in const*)addr;
+            uv_inet_ntop(sockAddr->sin_family, &(sockAddr->sin_addr), ip, INET_ADDRSTRLEN);
+            port = ntohs(sockAddr->sin_port);
+            CCLOG("UDP received %d bytes from %s:%d", nread, ip, port);
+            break;
+        }
+        default:
+            break;
+        }
+    } else {
+        CCLOG("UDP received %d bytes from unknown sender", nread);
+    }
+    
+    if (6 == nread) {
+        // holepunching
+    } else if (0 < nread) {
+        // Non-holepunching; it might be more effective in RAM usage to use a threadsafe RingBuff to pass msg to GameThread here, but as long as it's not a performance blocker don't bother optimize here...
+        uint8_t* const ui8Arr = (uint8_t*)malloc(maxUdpPayloadBytes*sizeof(uint8_t));
+        memset(ui8Arr, 0, sizeof ui8Arr);
+        for (int i = 0; i < nread; i++) {
+            *(ui8Arr+i) = *(buf->base + i);
+        }
+        cocos2d::Application::getInstance()->getScheduler()->performFunctionInCocosThread([=]() {
+            // [WARNING] Use of the "ScriptEngine" is only allowed in "GameThread a.k.a. CocosThread"!
+            se::Value onUdpMessageCb;
+            se::ScriptEngine::getInstance()->getGlobalObject()->getProperty("onUdpMessage", &onUdpMessageCb);
+            // [WARNING] Declaring "AutoHandleScope" is critical here, otherwise "onUdpMessageCb.toObject()" wouldn't be recognized as a function of the ScriptEngine!
+            se::AutoHandleScope hs;
+            //CCLOG("UDP received %d bytes upsync -- 1", nread);
+            se::Object* const gameThreadMsg = se::Object::createTypedArray(se::Object::TypedArrayType::UINT8, ui8Arr, nread);
+            //CCLOG("UDP received %d bytes upsync -- 2", nread);
+            se::ValueArray args = { se::Value(gameThreadMsg) };
+            if (onUdpMessageCb.isObject() && onUdpMessageCb.toObject()->isFunction()) {
+                // Temporarily assume that the "this" ptr within callback is NULL.
+                bool ok = onUdpMessageCb.toObject()->call(args, NULL);
+                if (!ok) {
+                    se::ScriptEngine::getInstance()->clearException();
+                }
+            }
+            //CCLOG("UDP received %d bytes upsync -- 3", nread);
+            gameThreadMsg->decRef(); // Reference http://docs.cocos.com/creator/2.2/manual/en/advanced-topics/JSB2.0-learning.html#seobject
+            //CCLOG("UDP received %d bytes upsync -- 4", nread);
+            free(ui8Arr);
+            CCLOG("UDP received %d bytes upsync -- 5", nread);
+
+        });
+    }
+    free(buf->base);
+
+    /*
+    // [WARNING] Don't call either of the following statements! They will make "_onRead" no longer called for incoming packets!
+    //uv_udp_recv_stop(req);
+    //uv_close((uv_handle_t*)req, NULL);
+    */
+}
+
+static void _allocBuffer(uv_handle_t* handle, size_t suggested_size, uv_buf_t* buf) {
+    (void)handle;
+    buf->base = (char*)malloc(suggested_size);
+    buf->len = suggested_size;
+}
+
+void _onUvStopSig(uv_async_t* handle) {
+    uv_stop(loop);
+    CCLOG("UDP recv loop is signaled to stop in UvThread");
+}
+
+void _onSend(uv_udp_send_t* req, int status) {
+    CCLOG("UDP send about to free req for status:%d...", status);
+    free(req); // No need to free "req->base", it'll be handled in each "_afterXxx" callback
+    CCLOG("UDP send freed req for status:%d...", status);
+    if (status) {
+        CCLOGERROR("uv_udp_send_cb error: %s\n", uv_strerror(status));
+    }
+}
+
+void _onUvTimerClosed(uv_handle_t* timer) {
+    free(timer);
+}
+
+int const punchServerCnt = 3;
+class PunchServerWork {
+public:
+    BYTEC bytes[maxUdpPayloadBytes]; // Wasting some RAM here thus no need for explicit recursive destruction
+    size_t bytesLen;
+
+    BYTEC udpTunnelBytes[maxUdpPayloadBytes];
+    size_t udpTunnelBytesLen;
+
+    PunchServerWork(BYTEC* const newBytes, size_t newBytesLen, BYTEC* const newUdpTunnelBytes, size_t newUdpTunnelBytesLen) {
+        memset(this->bytes, 0, sizeof(this->bytes));
+        memcpy(this->bytes, newBytes, newBytesLen);
+
+        this->bytesLen = newBytesLen;
+
+        memset(this->udpTunnelBytes, 0, sizeof(this->udpTunnelBytes));
+        memcpy(this->udpTunnelBytes, newUdpTunnelBytes, newUdpTunnelBytesLen);
+
+        this->udpTunnelBytesLen = newUdpTunnelBytesLen;
+    }
+};
+void _punchServerOnUvThread(uv_work_t* wrapper) {
+    PunchServerWork* work = (PunchServerWork*)wrapper->data;
+    for (int i = 0; i < punchServerCnt; i++) {
+        uv_udp_send_t* req = (uv_udp_send_t*)malloc(sizeof(uv_udp_send_t));
+        uv_buf_t sendBuffer = uv_buf_init(work->bytes, work->bytesLen);
+        struct sockaddr_in destAddr;
+        uv_ip4_addr(SRV_IP, SRV_PORT, &destAddr);
+        uv_udp_send(req, udpSocket, &sendBuffer, 1, (struct sockaddr const*)&destAddr, _onSend);
+
+        uv_udp_send_t* udpTunnelReq = (uv_udp_send_t*)malloc(sizeof(uv_udp_send_t));
+        uv_buf_t udpTunnelSendBuffer = uv_buf_init(work->udpTunnelBytes, work->udpTunnelBytesLen);
+        struct sockaddr_in udpTunnelDestAddr;
+        uv_ip4_addr(SRV_IP, UDP_TUNNEL_SRV_PORT, &udpTunnelDestAddr);
+        udpTunnelAddr.sockAddrIn = udpTunnelDestAddr;
+        uv_udp_send(udpTunnelReq, udpSocket, &udpTunnelSendBuffer, 1, (struct sockaddr const*)&udpTunnelDestAddr, _onSend);
+    }
+}
+void _afterPunchServer(uv_work_t* wrapper, int status) {
+    CCLOG("UDP send about to free PunchServerWork for status:%d...", status);
+    PunchServerWork* work = (PunchServerWork*)wrapper->data;
+    delete work;
+    CCLOG("UDP freed PunchServerWork for status:%d...", status);
+}
+
+class PunchPeerWork {
+public:
+    int roomCapacity;
+    int selfJoinIndex;
+    int naiveRefCnt;
+    PunchPeerWork(int newRoomCapacity, int newSelfJoinIndex) {
+        this->roomCapacity = newRoomCapacity;
+        this->selfJoinIndex = newSelfJoinIndex;
+        this->naiveRefCnt = 0;
+    }
+    void refInc() {
+        ++this->naiveRefCnt;
+    }
+    void refDecAndDelIfZero() {
+        --this->naiveRefCnt;
+        if (0 >= this->naiveRefCnt) {
+            delete this;
+        }
+    }
+    virtual ~PunchPeerWork() {
+        CCLOG("PunchPeerWork instance deleted...");
+    }
+};
+void _punchPeerOnUvThreadDelayed(uv_timer_t* timer, int status) {
+    //CCLOG("_punchPeerOnUvThreadDelayed started...");
+    PunchPeerWork* work = (PunchPeerWork*)timer->data;
+    int roomCapacity = work->roomCapacity;
+    int selfJoinIndex = work->selfJoinIndex;
+
+    for (int i = 0; i < roomCapacity; i++) {
+        if (i + 1 == selfJoinIndex) {
+            continue;
+        }
+        if (0 == peerAddrList[i].sockAddrIn.sin_port) {
+            // Peer addr not initialized
+            continue;
+        }
+        //CCLOG("UDP about to punch peer joinIndex:%d", i);
+        char peerIp[17] = { 0 };
+        uv_ip4_name((struct sockaddr_in*)&(peerAddrList[i].sockAddrIn), peerIp, sizeof peerIp);
+        int peerPortSt = ntohs(peerAddrList[i].sockAddrIn.sin_port);
+        int peerPortEd = ntohs(peerAddrList[i].sockAddrIn.sin_port) + 1; // Use tunnel of backend instead of sweeping ports blindly!
+        for (int peerPort = peerPortSt; peerPort < peerPortEd; peerPort++) {
+            if (0 > peerPort) continue;
+            uv_udp_send_t* req = (uv_udp_send_t*)malloc(sizeof(uv_udp_send_t));
+            uv_buf_t sendBuffer = uv_buf_init("foobar", 6); // hardcoded for now
+            struct sockaddr_in testPeerAddr;
+            uv_ip4_addr(peerIp, peerPort, &testPeerAddr);
+            uv_udp_send(req, udpSocket, &sendBuffer, 1, (struct sockaddr const*)&testPeerAddr, _onSend);
+            CCLOG("UDP punched peer %s:%d by 6 bytes", peerIp, peerPort);
+        }
+    }
+    uv_timer_stop(timer);
+    uv_close((uv_handle_t*)timer, _onUvTimerClosed);
+    //CCLOG("_punchPeerOnUvThreadDelayed stopped...");
+    work->refDecAndDelIfZero();
+}
+int const punchPeerCnt = 3;
+void _startPunchPeerTimerOnUvThread(uv_work_t* wrapper) {
+    PunchPeerWork* work = (PunchPeerWork*)wrapper->data;
+    int roomCapacity = work->roomCapacity;
+    int selfJoinIndex = work->selfJoinIndex;
+
+    for (int j = 0; j < punchPeerCnt; j++) {
+        work->refInc();
+    }
+    for (int j = 0; j < punchPeerCnt; j++) {
+        uv_timer_t* punchTimer = (uv_timer_t*)malloc(sizeof(uv_timer_t)); // I don't think libuv timer is safe to be called from GameThread, thus calling it within UvThread here
+        uv_timer_init(loop, punchTimer);
+        punchTimer->data = work;
+        uv_timer_start(punchTimer, (uv_timer_cb)&_punchPeerOnUvThreadDelayed, j * 500, 0);
+    }
+}
+void _afterPunchPeerTimerStarted(uv_work_t* wrapper, int status) {
+    // RAM of PunchPeerWork handled by "naiveRefCnt"
+}
+
+class BroadcastInputFrameUpsyncWork {
+public:
+    BYTEC bytes[maxUdpPayloadBytes]; // Wasting some RAM here thus no need for explicit recursive destruction
+    size_t bytesLen;
+    int roomCapacity;
+    int selfJoinIndex;
+
+    BroadcastInputFrameUpsyncWork(BYTEC* const newBytes, size_t newBytesLen, int newRoomCapacity, int newSelfJoinIndex) {
+        memset(this->bytes, 0, sizeof(this->bytes));
+        memcpy(this->bytes, newBytes, newBytesLen);
+
+        this->bytesLen = newBytesLen;
+
+        this->roomCapacity = newRoomCapacity;
+        this->selfJoinIndex = newSelfJoinIndex;
+    }
+};
+int const broadcastUpsyncCnt = 1;
+void _broadcastInputFrameUpsyncOnUvThread(uv_work_t* wrapper) {
+    BroadcastInputFrameUpsyncWork* work = (BroadcastInputFrameUpsyncWork*)wrapper->data;
+    int roomCapacity = work->roomCapacity;
+    int selfJoinIndex = work->selfJoinIndex;
+    // Send to room udp tunnel in case of hole punching failure
+    for (int j = 0; j < broadcastUpsyncCnt; j++) {
+        uv_udp_send_t* req = (uv_udp_send_t*)malloc(sizeof(uv_udp_send_t));
+        uv_buf_t sendBuffer = uv_buf_init(work->bytes, work->bytesLen);
+        uv_udp_send(req, udpSocket, &sendBuffer, 1, (struct sockaddr const*)&(udpTunnelAddr.sockAddrIn), _onSend);
+        CCLOG("UDP sent upsync to udp tunnel %s:%d by %u bytes round-%d", SRV_IP, UDP_TUNNEL_SRV_PORT, work->bytesLen, j);
+    }
+    
+    for (int i = 0; i < roomCapacity; i++) {
+        if (i + 1 == selfJoinIndex) {
+            continue;
+        }
+        if (0 == peerAddrList[i].sockAddrIn.sin_port) {
+            // Peer addr not initialized
+            continue;
+        }
+        char peerIp[17] = { 0 };
+        uv_ip4_name((struct sockaddr_in*)&(peerAddrList[i].sockAddrIn), peerIp, sizeof peerIp);
+        // Might want to send several times for better arrival rate
+        for (int j = 0; j < broadcastUpsyncCnt; j++) {
+            uv_udp_send_t* req = (uv_udp_send_t*)malloc(sizeof(uv_udp_send_t));
+            uv_buf_t sendBuffer = uv_buf_init(work->bytes, work->bytesLen);
+            uv_udp_send(req, udpSocket, &sendBuffer, 1, (struct sockaddr const*)&(peerAddrList[i].sockAddrIn), _onSend);
+            CCLOG("UDP broadcasted upsync to peer %s:%d by %u bytes round-%d", peerIp, ntohs(peerAddrList[i].sockAddrIn.sin_port), work->bytesLen, j);
+        }
+    }
+    
+}
+void _afterBroadcastInputFrameUpsync(uv_work_t* wrapper, int status) {
+    BroadcastInputFrameUpsyncWork* work = (BroadcastInputFrameUpsyncWork*)wrapper->data;
+    delete work;
+}
+
+void _onWalkCleanup(uv_handle_t* handle, void* data) {
+    (void)data;
+    uv_close(handle, NULL);
+}
+
+void startRecvLoop(void* arg) {
+    uv_loop_t* l = (uv_loop_t*)arg;
+    int uvRunRet1 = uv_run(l, UV_RUN_DEFAULT);
+    CCLOG("UDP recv loop is ended in UvThread, uvRunRet1=%d", uvRunRet1);
+    uv_walk(l, _onWalkCleanup, NULL);
+    int uvRunRet2 = uv_run(l, UV_RUN_DEFAULT);
+
+    int uvCloseRet = uv_loop_close(l);
+    CCLOG("UDP recv loop is closed in UvThread, uvRunRet2=%d, uvCloseRet=%d", uvRunRet2, uvCloseRet);
+}
+
+bool DelayNoMore::UdpSession::openUdpSession(int port) {
+    loop = uv_loop_new();
+    udpSocket = (uv_udp_t*)malloc(sizeof(uv_udp_t));
+
+    int sockInitRes = uv_udp_init(loop, udpSocket); // "uv_udp_init" must precede that of "uv_udp_bind" for successful binding!
+
+    struct sockaddr_in recv_addr;
+    uv_ip4_addr("0.0.0.0", port, &recv_addr);
+    int bindRes = uv_udp_bind(udpSocket, (struct sockaddr const*)&recv_addr, UV_UDP_REUSEADDR);
+    if (0 != bindRes) {
+        CCLOGERROR("Failed to bind port=%d; bind result=%d, reason=%s", port, bindRes, uv_strerror(bindRes));
+        exit(-1);
+    }
+
+    uv_async_init(loop, &uvLoopStopSig, _onUvStopSig);
+
+    CCLOG("About to open UDP session at port=%d; bind result=%d, sock init result=%d...", port, bindRes, sockInitRes);
+
+    uv_udp_recv_start(udpSocket, _allocBuffer, _onRead);
+
+    // TODO: Currently "sending" is also done in the "receiving loop thread", shall I segregate it to another dedicated thread?
+    uv_thread_create(&recvTid, startRecvLoop, loop);
+
+    CCLOG("Finished opening UDP session at port=%d", port);
+
+    return true;
+}
+
+bool DelayNoMore::UdpSession::closeUdpSession() {
+    CCLOG("About to close udp session and dealloc all resources...");
+
+    for (int i = 0; i < maxPeerCnt; i++) {
+        peerAddrList[i].authKey = -1; // hardcoded for now
+        memset((char*)&peerAddrList[i].sockAddrIn, 0, sizeof(peerAddrList[i].sockAddrIn));
+    }
+    uv_async_send(&uvLoopStopSig); // The few if not only guaranteed thread safe utility of libuv :) See http://docs.libuv.org/en/v1.x/async.html#c.uv_async_send
+    CCLOG("Signaling UvThread to end in GameThread...");
+
+    uv_thread_join(&recvTid);
+
+    free(udpSocket);
+    free(loop);
+
+    CCLOG("Closed udp session and dealloc all resources in GameThread...");
+
+    return true;
+}
+
+bool DelayNoMore::UdpSession::punchToServer(CHARC* const srvIp, int const srvPort, BYTEC* const bytes, size_t bytesLen, int const udpTunnelSrvPort, BYTEC* const udpTunnelBytes, size_t udpTunnelBytesBytesLen) {
+    /*
+    [WARNING] The RAM space used for "bytes", either on stack or in heap, is preallocatedand managed by the caller which runs on the GameThread. Actual sending will be made on UvThread.
+
+    Therefore we make a copy of this message before dispatching it "GameThread -> UvThread".
+    */
+    memset(SRV_IP, 0, sizeof SRV_IP);
+    memcpy(SRV_IP, srvIp, strlen(srvIp));
+    SRV_PORT = srvPort;
+    UDP_TUNNEL_SRV_PORT = udpTunnelSrvPort;
+    PunchServerWork* work = new PunchServerWork(bytes, bytesLen, udpTunnelBytes, udpTunnelBytesBytesLen);
+
+    /*
+    TODO: Libuv is really inconvenient here, neither "uv_queue_work" nor "uv_async_init" is threadsafe(http ://docs.libuv.org/en/v1.x/threadpool.html#c.uv_queue_work)! What's the point of such a queue? It's even more difficult than writing my own implementation -- again a threadsafe RingBuff could be used to the rescue, yet I'd like to investigate more into how to make the following threadsafe APIs with minimum cross-platform C++ codes
+    - _sendMessage(...), should be both non-blocking & threadsafe, called from GameThread
+    - _onRead(...), should be called first in UvThread in an edge-triggered manner like idiomatic "epoll" or "kqueue", then dispatch the received message to GameThread by a threadsafe RingBuff
+    */ 
+    uv_work_t* wrapper = (uv_work_t*)malloc(sizeof(uv_work_t));
+    wrapper->data = work;
+
+    uv_queue_work(loop, wrapper, _punchServerOnUvThread, _afterPunchServer);
+
+    return true;
+}
+
+bool DelayNoMore::UdpSession::upsertPeerUdpAddr(struct PeerAddr* newPeerAddrList, int roomCapacity, int selfJoinIndex) {
+    CCLOG("upsertPeerUdpAddr called by js for roomCapacity=%d, selfJoinIndex=%d.", roomCapacity, selfJoinIndex);
+
+    // Punching between existing peer-pairs for Address/Port-restricted Cone NAT (not need for Full Cone NAT); UvThread never writes into "peerAddrList", so I assume that it's safe to skip locking for them
+    for (int i = 0; i < roomCapacity; i++) {
+        if (i == selfJoinIndex - 1) continue;
+        peerAddrList[i].sockAddrIn = (*(newPeerAddrList + i)).sockAddrIn;
+        peerAddrList[i].authKey = (*(newPeerAddrList + i)).authKey;
+    }
+
+    PunchPeerWork* work = new PunchPeerWork(roomCapacity, selfJoinIndex);
+    uv_work_t* wrapper = (uv_work_t*)malloc(sizeof(uv_work_t));
+    wrapper->data = work;
+    uv_queue_work(loop, wrapper, _startPunchPeerTimerOnUvThread, _afterPunchPeerTimerStarted);
+
+    return true;
+}
+
+bool DelayNoMore::UdpSession::broadcastInputFrameUpsync(BYTEC* const bytes, size_t bytesLen, int roomCapacity, int selfJoinIndex) {
+    BroadcastInputFrameUpsyncWork* work = new BroadcastInputFrameUpsyncWork(bytes, bytesLen, roomCapacity, selfJoinIndex);
+    uv_work_t* wrapper = (uv_work_t*)malloc(sizeof(uv_work_t));
+    wrapper->data = work;
+    uv_queue_work(loop, wrapper, _broadcastInputFrameUpsyncOnUvThread, _afterBroadcastInputFrameUpsync);
+
+    return true;
+}

frontend/build-templates/jsb-link/frameworks/runtime-src/Classes/udp_session.hpp

@@ -0,0 +1,28 @@
+#include "uv/uv.h"
+#define __SSIZE_T // Otherwise "ssize_t" would have conflicting macros error that stops compiling
+
+#ifndef udp_session_hpp
+#define udp_session_hpp
+
+typedef char BYTEC;
+typedef char const CHARC;
+int const maxUdpPayloadBytes = 128;
+
+int const maxPeerCnt = 10;
+struct PeerAddr {
+    struct sockaddr_in sockAddrIn;
+    uint32_t authKey;
+};
+
+namespace DelayNoMore {
+    class UdpSession {
+    public:
+        static bool openUdpSession(int port);
+        static bool closeUdpSession();
+        static bool upsertPeerUdpAddr(struct PeerAddr* newPeerAddrList, int roomCapacity, int selfJoinIndex);
+        //static bool clearPeerUDPAddrList();
+        static bool punchToServer(CHARC* const srvIp, int const srvPort, BYTEC* const bytes, size_t bytesLen, int const udpTunnelSrvPort, BYTEC* const udpTunnelBytes, size_t udpTunnelBytesBytesLen);
+        static bool broadcastInputFrameUpsync(BYTEC* const bytes, size_t bytesLen, int roomCapacity, int selfJoinIndex);
+    };
+}
+#endif

frontend/build-templates/jsb-link/frameworks/runtime-src/Classes/udp_session_bridge.cpp

@@ -0,0 +1,171 @@
+#include "udp_session.hpp"
+#include "base/ccMacros.h"
+#include "scripting/js-bindings/manual/jsb_conversions.hpp"
+
+bool openUdpSession(se::State& s) {
+    const auto& args = s.args();
+    size_t argc = args.size();
+    CC_UNUSED bool ok = true;
+    if (1 == argc && args[0].isNumber()) {
+        SE_PRECONDITION2(ok, false, "openUdpSession: Error processing arguments");
+        int port = args[0].toInt32();
+
+        return DelayNoMore::UdpSession::openUdpSession(port);
+    }
+    SE_REPORT_ERROR("wrong number of arguments: %d, was expecting %d; or wrong arg type!", (int)argc, 1);
+
+    return false;
+}
+SE_BIND_FUNC(openUdpSession)
+
+bool punchToServer(se::State& s) {
+    const auto& args = s.args();
+    size_t argc = args.size();
+    CC_UNUSED bool ok = true;
+    if (5 == argc && args[0].isString() && args[1].isNumber() && args[2].isObject() && args[2].toObject()->isTypedArray()
+        && args[3].isNumber() && args[4].isObject() && args[4].toObject()->isTypedArray()
+        ) {
+        SE_PRECONDITION2(ok, false, "punchToServer: Error processing arguments");
+        CHARC* srvIp = args[0].toString().c_str();
+        int srvPort = args[1].toInt32();
+        BYTEC bytes[maxUdpPayloadBytes];
+        memset(bytes, 0, sizeof bytes);
+        se::Object* obj = args[2].toObject();
+        size_t sz = 0;
+        uint8_t* ptr = NULL;
+        obj->getTypedArrayData(&ptr, &sz);
+        for (size_t i = 0; i < sz; i++) {
+            bytes[i] = (char)(*(ptr + i));
+        }
+
+        int udpTunnelSrvPort = args[3].toInt32();
+        BYTEC udpTunnelBytes[maxUdpPayloadBytes];
+        memset(udpTunnelBytes, 0, sizeof udpTunnelBytes);
+        se::Object* udpTunnelObj = args[4].toObject();
+        size_t udpTunnelSz = 0;
+        uint8_t* udpTunnelPtr = NULL;
+        udpTunnelObj->getTypedArrayData(&udpTunnelPtr, &udpTunnelSz);
+        for (size_t i = 0; i < udpTunnelSz; i++) {
+            udpTunnelBytes[i] = (char)(*(udpTunnelPtr + i));
+        }
+
+        CCLOG("Should punch %s:%d by %d bytes; should punch udp tunnel %s:%d by %d bytes.", srvIp, srvPort, sz, srvIp, udpTunnelSrvPort, udpTunnelSz);
+        return DelayNoMore::UdpSession::punchToServer(srvIp, srvPort, bytes, sz, udpTunnelSrvPort, udpTunnelBytes, udpTunnelSz);
+    }
+    SE_REPORT_ERROR("wrong number of arguments: %d, was expecting %d; or wrong arg type!", (int)argc, 5);
+    return false;
+}
+SE_BIND_FUNC(punchToServer)
+
+bool broadcastInputFrameUpsync(se::State& s) {
+    const auto& args = s.args();
+    size_t argc = args.size();
+    CC_UNUSED bool ok = true;
+    if (3 == argc && args[0].toObject()->isTypedArray() && args[1].isNumber() && args[2].isNumber()) {
+        SE_PRECONDITION2(ok, false, "broadcastInputFrameUpsync: Error processing arguments");
+        BYTEC bytes[1024];
+        memset(bytes, 0, sizeof bytes);
+        se::Object* obj = args[0].toObject();
+        size_t sz = 0;
+        uint8_t* ptr = NULL;
+        obj->getTypedArrayData(&ptr, &sz);
+        for (size_t i = 0; i < sz; i++) {
+            bytes[i] = (char)(*(ptr + i));
+        }
+        int roomCapacity = args[1].toInt32();
+        int selfJoinIndex = args[2].toInt32();
+        CCLOG("Should broadcastInputFrameUpsync %u bytes; roomCapacity=%d, selfJoinIndex=%d.", sz, roomCapacity, selfJoinIndex);
+        return DelayNoMore::UdpSession::broadcastInputFrameUpsync(bytes, sz, roomCapacity, selfJoinIndex);
+    }
+    SE_REPORT_ERROR("wrong number of arguments: %d, was expecting %d; or wrong arg type!", (int)argc, 3);
+    return false;
+}
+SE_BIND_FUNC(broadcastInputFrameUpsync)
+
+bool closeUdpSession(se::State& s) {
+    const auto& args = s.args();
+    size_t argc = args.size();
+    CC_UNUSED bool ok = true;
+    if (0 == argc) {
+        SE_PRECONDITION2(ok, false, "closeUdpSession: Error processing arguments");
+        return DelayNoMore::UdpSession::closeUdpSession();
+    }
+    SE_REPORT_ERROR("wrong number of arguments: %d, was expecting %d", (int)argc, 0);
+
+    return false;
+}
+SE_BIND_FUNC(closeUdpSession)
+
+struct PeerAddr newPeerAddrList[maxPeerCnt];
+bool upsertPeerUdpAddr(se::State& s) {
+    const auto& args = s.args();
+    size_t argc = args.size();
+    CC_UNUSED bool ok = true;
+    if (3 == argc && args[0].isObject() && args[0].toObject()->isArray() && args[1].isNumber() && args[2].isNumber()) {
+        SE_PRECONDITION2(ok, false, "upsertPeerUdpAddr: Error processing arguments");
+        int roomCapacity = args[1].toInt32();
+        int selfJoinIndex = args[2].toInt32();
+        se::Object* newPeerAddrValArr = args[0].toObject();
+        for (int i = 0; i < roomCapacity; i++) {
+            se::Value newPeerAddrVal;
+            newPeerAddrValArr->getArrayElement(i, &newPeerAddrVal);
+            se::Object* newPeerAddrObj = newPeerAddrVal.toObject();
+            se::Value newIp, newPort, newAuthKey;
+            newPeerAddrObj->getProperty("ip", &newIp);
+            newPeerAddrObj->getProperty("port", &newPort);
+            newPeerAddrObj->getProperty("authKey", &newAuthKey);
+            uv_ip4_addr(newIp.toString().c_str(), newPort.toInt32(), &(newPeerAddrList[i].sockAddrIn));
+            newPeerAddrList[i].authKey = newAuthKey.toInt32();
+        }
+
+        return DelayNoMore::UdpSession::upsertPeerUdpAddr(newPeerAddrList, roomCapacity, selfJoinIndex);
+    }
+    SE_REPORT_ERROR("wrong number of arguments: %d, was expecting %d; or wrong arg type!", (int)argc, 3);
+    
+    return false;
+}
+SE_BIND_FUNC(upsertPeerUdpAddr)
+
+static bool udpSessionFinalize(se::State& s)
+{
+    CCLOGINFO("jsbindings: finalizing JS object %p (DelayNoMore::UdpSession)", s.nativeThisObject());
+    auto iter = se::NonRefNativePtrCreatedByCtorMap::find(s.nativeThisObject());
+    if (iter != se::NonRefNativePtrCreatedByCtorMap::end()) {
+        se::NonRefNativePtrCreatedByCtorMap::erase(iter);
+        DelayNoMore::UdpSession* cobj = (DelayNoMore::UdpSession*)s.nativeThisObject();
+        delete cobj;
+    }
+    return true;
+}
+SE_BIND_FINALIZE_FUNC(udpSessionFinalize)
+
+se::Object* __jsb_udp_session_proto = nullptr;
+se::Class* __jsb_udp_session_class = nullptr;
+bool registerUdpSession(se::Object* obj)
+{
+    // Get the ns
+    se::Value nsVal;
+    if (!obj->getProperty("DelayNoMore", &nsVal))
+    {
+        se::HandleObject jsobj(se::Object::createPlainObject());
+        nsVal.setObject(jsobj);
+        obj->setProperty("DelayNoMore", nsVal);
+    }
+    
+    se::Object* ns = nsVal.toObject();
+    auto cls = se::Class::create("UdpSession", ns, nullptr, nullptr);
+
+    cls->defineStaticFunction("openUdpSession", _SE(openUdpSession));
+    cls->defineStaticFunction("punchToServer", _SE(punchToServer));
+    cls->defineStaticFunction("broadcastInputFrameUpsync", _SE(broadcastInputFrameUpsync));
+    cls->defineStaticFunction("closeUdpSession", _SE(closeUdpSession));
+    cls->defineStaticFunction("upsertPeerUdpAddr", _SE(upsertPeerUdpAddr));
+    cls->defineFinalizeFunction(_SE(udpSessionFinalize));
+    cls->install();
+    
+    JSBClassType::registerClass<DelayNoMore::UdpSession>(cls);
+    __jsb_udp_session_proto = cls->getProto();
+    __jsb_udp_session_class = cls;
+    se::ScriptEngine::getInstance()->clearException();
+    return true;
+}

frontend/build-templates/jsb-link/frameworks/runtime-src/Classes/udp_session_bridge.hpp

@@ -0,0 +1,19 @@
+#ifndef udp_session_bridge_hpp
+#define udp_session_bridge_hpp
+
+#pragma once
+#include "base/ccConfig.h"
+#include "cocos/scripting/js-bindings/jswrapper/SeApi.h"
+
+extern se::Object* __jsb_udp_session_proto;
+extern se::Class* __jsb_udp_session_class;
+
+bool registerUdpSession(se::Object* obj);
+
+SE_DECLARE_FUNC(openUdpSession);
+SE_DECLARE_FUNC(punchToServer);
+SE_DECLARE_FUNC(broadcastInputFrameUpsync);
+SE_DECLARE_FUNC(closeUdpSession);
+SE_DECLARE_FUNC(upsertPeerUdpAddr);
+
+#endif

frontend/build-templates/jsb-link/frameworks/runtime-src/proj.android-studio/app/AndroidManifest.xml

@@ -0,0 +1,40 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="org.genxium.delaynomore"
+    android:installLocation="auto">
+
+    <uses-feature android:glEsVersion="0x00020000" />
+
+    <uses-permission android:name="android.permission.INTERNET"/>
+    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
+    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/>
+
+    <!-- TODO: Remove "usesCleartextTraffic" in production -->
+    <application
+        android:allowBackup="true"
+        android:label="@string/app_name"
+        android:usesCleartextTraffic="true"
+        android:icon="@mipmap/ic_launcher">
+        
+        <!-- Tell Cocos2dxActivity the name of our .so -->
+        <meta-data android:name="android.app.lib_name"
+                   android:value="cocos2djs" />
+        
+        <activity
+            android:name="org.cocos2dx.javascript.AppActivity"
+            android:screenOrientation="sensorLandscape"
+            android:configChanges="orientation|keyboardHidden|screenSize"
+            android:label="@string/app_name"
+            android:usesCleartextTraffic="true"
+            android:theme="@android:style/Theme.NoTitleBar.Fullscreen"
+            android:launchMode="singleTask"
+            android:taskAffinity="" >
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+    
+</manifest>

frontend/build-templates/jsb-link/frameworks/runtime-src/proj.android-studio/app/jni/Android.mk

@@ -0,0 +1,25 @@
+LOCAL_PATH := $(call my-dir)
+
+include $(CLEAR_VARS)
+
+LOCAL_MODULE := cocos2djs_shared
+
+LOCAL_MODULE_FILENAME := libcocos2djs
+
+ifeq ($(USE_ARM_MODE),1)
+LOCAL_ARM_MODE := arm
+endif
+
+LOCAL_SRC_FILES := hellojavascript/main.cpp \
+				   ../../../Classes/AppDelegate.cpp \
+				   ../../../Classes/jsb_module_register.cpp \
+				   ../../../Classes/udp_session.cpp \
+				   ../../../Classes/udp_session_bridge.cpp \
+
+LOCAL_C_INCLUDES := $(LOCAL_PATH)/../../../Classes
+
+LOCAL_STATIC_LIBRARIES := cocos2dx_static
+
+include $(BUILD_SHARED_LIBRARY)
+
+$(call import-module, cocos)

frontend/build-templates/jsb-link/frameworks/runtime-src/proj.android-studio/app/src/org/cocos2dx/javascript/AppActivity.java

@@ -0,0 +1,119 @@
+/****************************************************************************
+Copyright (c) 2015-2016 Chukong Technologies Inc.
+Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.
+ 
+http://www.cocos2d-x.org
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+****************************************************************************/
+package org.cocos2dx.javascript;
+
+import android.content.Intent;
+import android.content.res.Configuration;
+import android.os.Bundle;
+
+import org.cocos2dx.lib.Cocos2dxActivity;
+import org.cocos2dx.lib.Cocos2dxGLSurfaceView;
+
+public class AppActivity extends Cocos2dxActivity {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        // Workaround in https://stackoverflow.com/questions/16283079/re-launch-of-activity-on-home-button-but-only-the-first-time/16447508
+        if (!isTaskRoot()) {
+            // Android launched another instance of the root activity into an existing task
+            //  so just quietly finish and go away, dropping the user back into the activity
+            //  at the top of the stack (ie: the last state of this task)
+            // Don't need to finish it again since it's finished in super.onCreate .
+            return;
+        }
+        // DO OTHER INITIALIZATION BELOW
+
+    }
+    
+    @Override
+    public Cocos2dxGLSurfaceView onCreateView() {
+        Cocos2dxGLSurfaceView glSurfaceView = new Cocos2dxGLSurfaceView(this);
+        // TestCpp should create stencil buffer
+        glSurfaceView.setEGLConfigChooser(5, 6, 5, 0, 16, 8);
+
+        return glSurfaceView;
+    }
+
+    @Override
+    protected void onResume() {
+        super.onResume();
+    }
+
+    @Override
+    protected void onPause() {
+        super.onPause();
+    }
+
+    @Override
+    protected void onDestroy() {
+        super.onDestroy();
+    }
+
+    @Override
+    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
+        super.onActivityResult(requestCode, resultCode, data);
+    }
+
+    @Override
+    protected void onNewIntent(Intent intent) {
+        super.onNewIntent(intent);
+    }
+
+    @Override
+    protected void onRestart() {
+        super.onRestart();
+    }
+
+    @Override
+    protected void onStop() {
+        super.onStop();
+    }
+        
+    @Override
+    public void onBackPressed() {
+        super.onBackPressed();
+    }
+
+    @Override
+    public void onConfigurationChanged(Configuration newConfig) {
+        super.onConfigurationChanged(newConfig);
+    }
+
+    @Override
+    protected void onRestoreInstanceState(Bundle savedInstanceState) {
+        super.onRestoreInstanceState(savedInstanceState);
+    }
+
+    @Override
+    protected void onSaveInstanceState(Bundle outState) {
+        super.onSaveInstanceState(outState);
+    }
+
+    @Override
+    protected void onStart() {
+        super.onStart();
+    }
+}

frontend/build-templates/jsb-link/frameworks/runtime-src/proj.android-studio/build.gradle

@@ -0,0 +1,30 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+
+buildscript {
+
+    repositories {
+        google()
+        jcenter()
+    }
+    dependencies {
+        classpath 'com.android.tools.build:gradle:3.2.0'
+
+
+        // NOTE: Do not place your application dependencies here; they belong
+        // in the individual module build.gradle files
+    }
+}
+
+allprojects {
+    repositories {
+        google()
+        jcenter()
+        flatDir {
+            dirs 'libs'
+        }
+    }
+}
+
+task clean(type: Delete) {
+    delete rootProject.buildDir
+}

frontend/build-templates/jsb-link/frameworks/runtime-src/proj.win32/DelayNoMore.vcxproj

@@ -0,0 +1,210 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>{3B0B58B1-2734-488E-A542-ECEC11EB2455}</ProjectGuid>
+    <RootNamespace>DelayNoMore</RootNamespace>
+    <WindowsTargetPlatformVersion>8.1</WindowsTargetPlatformVersion>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <CharacterSet>Unicode</CharacterSet>
+    <PlatformToolset Condition="'$(VisualStudioVersion)' == '12.0'">v120</PlatformToolset>
+    <PlatformToolset Condition="'$(VisualStudioVersion)' == '12.0' and exists('$(MSBuildProgramFiles32)\Microsoft SDKs\Windows\v7.1A')">v120_xp</PlatformToolset>
+    <PlatformToolset Condition="'$(VisualStudioVersion)' == '14.0'">v140</PlatformToolset>
+    <PlatformToolset Condition="'$(VisualStudioVersion)' == '14.0' and exists('$(MSBuildProgramFiles32)\Microsoft SDKs\Windows\v7.1A')">v140_xp</PlatformToolset>
+    <PlatformToolset Condition="'$(VisualStudioVersion)' == '15.0'">v141</PlatformToolset>
+    <PlatformToolset Condition="'$(VisualStudioVersion)' == '15.0' and exists('$(MSBuildProgramFiles32)\Microsoft SDKs\Windows\v7.1A')">v140_xp</PlatformToolset>
+    <PlatformToolset>v140</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <CharacterSet>Unicode</CharacterSet>
+    <PlatformToolset Condition="'$(VisualStudioVersion)' == '12.0'">v120</PlatformToolset>
+    <PlatformToolset Condition="'$(VisualStudioVersion)' == '12.0' and exists('$(MSBuildProgramFiles32)\Microsoft SDKs\Windows\v7.1A')">v120_xp</PlatformToolset>
+    <PlatformToolset Condition="'$(VisualStudioVersion)' == '14.0'">v140</PlatformToolset>
+    <PlatformToolset Condition="'$(VisualStudioVersion)' == '14.0' and exists('$(MSBuildProgramFiles32)\Microsoft SDKs\Windows\v7.1A')">v140_xp</PlatformToolset>
+    <PlatformToolset Condition="'$(VisualStudioVersion)' == '15.0'">v141</PlatformToolset>
+    <PlatformToolset Condition="'$(VisualStudioVersion)' == '15.0' and exists('$(MSBuildProgramFiles32)\Microsoft SDKs\Windows\v7.1A')">v140_xp</PlatformToolset>
+    <PlatformToolset>v140</PlatformToolset>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="C:\CocosCreator_2.2.1\resources\cocos2d-x\build\cocos2dx.props" />
+    <Import Project="C:\CocosCreator_2.2.1\resources\cocos2d-x\build\cocos2d_headers.props" />
+  </ImportGroup>
+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="C:\CocosCreator_2.2.1\resources\cocos2d-x\build\cocos2dx.props" />
+    <Import Project="C:\CocosCreator_2.2.1\resources\cocos2d-x\build\cocos2d_headers.props" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup>
+    <_ProjectFileVersion>12.0.21005.1</_ProjectFileVersion>
+    <OutDir Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">$(SolutionDir)$(Configuration).win32\</OutDir>
+    <IntDir Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">$(Configuration).win32\</IntDir>
+    <LinkIncremental Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">false</LinkIncremental>
+    <OutDir Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">$(SolutionDir)$(Configuration).win32\</OutDir>
+    <IntDir Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">$(Configuration).win32\</IntDir>
+    <LinkIncremental Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">false</LinkIncremental>
+    <CodeAnalysisRuleSet Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">AllRules.ruleset</CodeAnalysisRuleSet>
+    <CodeAnalysisRules Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" />
+    <CodeAnalysisRuleAssemblies Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" />
+    <CodeAnalysisRuleSet Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">AllRules.ruleset</CodeAnalysisRuleSet>
+    <CodeAnalysisRules Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" />
+    <CodeAnalysisRuleAssemblies Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" />
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <LibraryPath>$(MSBuildProgramFiles32)\Microsoft SDKs\Windows\v7.1A\lib;$(LibraryPath)</LibraryPath>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <LibraryPath>$(MSBuildProgramFiles32)\Microsoft SDKs\Windows\v7.1A\lib;$(LibraryPath)</LibraryPath>
+  </PropertyGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <Midl>
+      <PreprocessorDefinitions>_DEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <MkTypLibCompatible>false</MkTypLibCompatible>
+      <TargetEnvironment>Win32</TargetEnvironment>
+      <GenerateStublessProxies>true</GenerateStublessProxies>
+      <TypeLibraryName>$(IntDir)game.tlb</TypeLibraryName>
+      <HeaderFileName>game.h</HeaderFileName>
+      <DllDataFileName>
+      </DllDataFileName>
+      <InterfaceIdentifierFileName>game_i.c</InterfaceIdentifierFileName>
+      <ProxyFileName>game_p.c</ProxyFileName>
+    </Midl>
+    <ClCompile>
+      <Optimization>Disabled</Optimization>
+      <AdditionalIncludeDirectories>$(ProjectDir)..\Classes;$(EngineRoot);$(EngineRoot)cocos;$(EngineRoot)cocos\base;$(EngineRoot)cocos\scripting\js-bindings\auto;$(EngineRoot)cocos\scripting\js-bindings\manual;$(EngineRoot)cocos\audio\include;$(EngineRoot)external\win32\include\;$(EngineRoot)external\win32\include\v8;$(EngineRoot)extensions;$(EngineRoot)cocos\editor-support;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>WIN32;_WINDOWS;STRICT;_DEBUG;XP_WIN;JS_HAVE___INTN;JS_INTPTR_TYPE=int;COCOS2D_DEBUG=1;_CRT_SECURE_NO_WARNINGS;_SCL_SECURE_NO_WARNINGS;_USRLIBSIMSTATIC;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <MinimalRebuild>false</MinimalRebuild>
+      <BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
+      <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
+      <PrecompiledHeader>
+      </PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <DebugInformationFormat>EditAndContinue</DebugInformationFormat>
+      <DisableSpecificWarnings>4267;4251;4244;4800;%(DisableSpecificWarnings)</DisableSpecificWarnings>
+      <MultiProcessorCompilation>true</MultiProcessorCompilation>
+    </ClCompile>
+    <ResourceCompile>
+      <PreprocessorDefinitions>_DEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <Culture>0x0409</Culture>
+      <AdditionalIncludeDirectories>$(MSBuildProgramFiles32)\Microsoft SDKs\Windows\v7.1A\include;$(IntDir);%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+    </ResourceCompile>
+    <PreLinkEvent>
+      <Command>
+      </Command>
+    </PreLinkEvent>
+    <Link>
+      <AdditionalDependencies>v8.dll.lib;v8_libbase.dll.lib;v8_libplatform.dll.lib;libuv.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalLibraryDirectories>$(OutDir);%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+      <SubSystem>Windows</SubSystem>
+      <TargetMachine>MachineX86</TargetMachine>
+    </Link>
+    <PreBuildEvent>
+      <Command>
+      </Command>
+    </PreBuildEvent>
+    <PreBuildEvent>
+      <Command>
+      </Command>
+    </PreBuildEvent>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup>
+    <CustomBuildStep>
+      <Command>xcopy "$(ProjectDir)..\..\..\src" "$(OutDir)\src" /D /E /I /F /Y
+xcopy "$(ProjectDir)..\..\..\res" "$(OutDir)\res" /D /E /I /F /Y
+xcopy "$(ProjectDir)..\..\..\jsb-adapter" "$(OutDir)\jsb-adapter" /D /E /I /F /Y
+copy "$(ProjectDir)..\..\..\main.js" "$(OutDir)\" /Y
+copy "$(ProjectDir)..\..\..\project.json" "$(OutDir)\" /Y</Command>
+      <Outputs>$(TargetName).cab</Outputs>
+      <Inputs>$(TargetFileName)</Inputs>
+    </CustomBuildStep>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <Midl>
+      <PreprocessorDefinitions>NDEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <MkTypLibCompatible>false</MkTypLibCompatible>
+      <TargetEnvironment>Win32</TargetEnvironment>
+      <GenerateStublessProxies>true</GenerateStublessProxies>
+      <TypeLibraryName>$(IntDir)game.tlb</TypeLibraryName>
+      <HeaderFileName>game.h</HeaderFileName>
+      <DllDataFileName>
+      </DllDataFileName>
+      <InterfaceIdentifierFileName>game_i.c</InterfaceIdentifierFileName>
+      <ProxyFileName>game_p.c</ProxyFileName>
+    </Midl>
+    <ClCompile>
+      <AdditionalIncludeDirectories>$(ProjectDir)..\Classes;$(EngineRoot);$(EngineRoot)cocos;$(EngineRoot)cocos\base;$(EngineRoot)cocos\scripting\js-bindings\auto;$(EngineRoot)cocos\scripting\js-bindings\manual;$(EngineRoot)cocos\audio\include;$(EngineRoot)external\win32\include\;$(EngineRoot)external\win32\include\v8;$(EngineRoot)extensions;$(EngineRoot)cocos\editor-support;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions>WIN32;_WINDOWS;STRICT;NDEBUG;XP_WIN;JS_HAVE___INTN;JS_INTPTR_TYPE=int;_CRT_SECURE_NO_WARNINGS;_SCL_SECURE_NO_WARNINGS;_USRLIBSIMSTATIC;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ExceptionHandling>
+      </ExceptionHandling>
+      <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
+      <PrecompiledHeader>
+      </PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <DebugInformationFormat>
+      </DebugInformationFormat>
+      <DisableSpecificWarnings>4267;4251;4244;4800;%(DisableSpecificWarnings)</DisableSpecificWarnings>
+      <MultiProcessorCompilation>true</MultiProcessorCompilation>
+    </ClCompile>
+    <ResourceCompile>
+      <PreprocessorDefinitions>NDEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <Culture>0x0409</Culture>
+      <AdditionalIncludeDirectories>$(MSBuildProgramFiles32)\Microsoft SDKs\Windows\v7.1A\include;$(IntDir);%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+    </ResourceCompile>
+    <PreLinkEvent>
+      <Command>
+      </Command>
+    </PreLinkEvent>
+    <Link>
+      <AdditionalDependencies>v8.dll.lib;v8_libbase.dll.lib;v8_libplatform.dll.lib;libuv.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalLibraryDirectories>$(OutDir);%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+      <SubSystem>Windows</SubSystem>
+      <TargetMachine>MachineX86</TargetMachine>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+    <PreBuildEvent>
+      <Command>
+      </Command>
+    </PreBuildEvent>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="..\Classes\jsb_module_register.cpp" />
+    <ClCompile Include="main.cpp" />
+    <ClCompile Include="..\Classes\AppDelegate.cpp" />
+    <ClCompile Include="..\Classes\udp_session.cpp" />
+    <ClCompile Include="..\Classes\udp_session_bridge.cpp" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="main.h" />
+    <ClInclude Include="..\Classes\udp_session.hpp" />
+    <ClInclude Include="..\Classes\udp_session_bridge.hpp" />
+    <ClInclude Include="..\Classes\AppDelegate.h" />
+    <ClInclude Include="resource.h" />
+  </ItemGroup>
+  <ItemGroup>
+    <ResourceCompile Include="game.rc" />
+  </ItemGroup>
+  <ItemGroup>
+    <Image Include="res\game.ico" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>

frontend/build-templates/jsb-link/frameworks/runtime-src/proj.win32/DelayNoMore.vcxproj.filters

@@ -0,0 +1,57 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Filter Include="resource">
+      <UniqueIdentifier>{ca9c9e15-d942-43a1-aa7a-5f0b74ca1afd}</UniqueIdentifier>
+      <Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;jpg;jpeg;jpe;png;manifest</Extensions>
+    </Filter>
+    <Filter Include="win32">
+      <UniqueIdentifier>{ccb2323b-1cfa-41ea-bcf4-ba5f07309396}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="Classes">
+      <UniqueIdentifier>{e93a77e1-af1e-4400-87d3-504b62ebdbb0}</UniqueIdentifier>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="main.cpp">
+      <Filter>win32</Filter>
+    </ClCompile>
+    <ClCompile Include="..\Classes\AppDelegate.cpp">
+      <Filter>Classes</Filter>
+    </ClCompile>
+    <ClCompile Include="..\Classes\jsb_module_register.cpp">
+      <Filter>Classes</Filter>
+    </ClCompile>
+    <ClCompile Include="..\Classes\udp_session.cpp">
+      <Filter>Classes</Filter>
+    </ClCompile>
+    <ClCompile Include="..\Classes\udp_session_bridge.cpp">
+      <Filter>Classes</Filter>
+    </ClCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="..\Classes\AppDelegate.h">
+      <Filter>Classes</Filter>
+    </ClInclude>
+    <ClInclude Include="main.h">
+      <Filter>win32</Filter>
+    </ClInclude>
+    <ClInclude Include="resource.h" />
+    <ClInclude Include="..\Classes\udp_session.hpp">
+      <Filter>Classes</Filter>
+    </ClInclude>
+    <ClInclude Include="..\Classes\udp_session_bridge.hpp">
+      <Filter>Classes</Filter>
+    </ClInclude>
+  </ItemGroup>
+  <ItemGroup>
+    <ResourceCompile Include="game.rc">
+      <Filter>resource</Filter>
+    </ResourceCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <Image Include="res\game.ico">
+      <Filter>resource</Filter>
+    </Image>
+  </ItemGroup>
+</Project>

frontend/settings/builder.json

@@ -2,7 +2,7 @@
   "android-instant": {
     "REMOTE_SERVER_ROOT": "",
     "host": "",
-    "packageName": "org.cocos2d.helloworld",
+    "packageName": "org.genxium.delaynomore",
     "pathPattern": "",
     "recordPath": "",
     "scheme": "https",
@@ -15,14 +15,14 @@
     "orientation": "portrait",
     "subContext": ""
   },
-  "encryptJs": true,
+  "encryptJs": false,
   "excludeScenes": [
     "8491a86c-bec9-4813-968a-128ca01639e0"
   ],
   "fb-instant-games": {},
   "includeSDKBox": false,
   "inlineSpriteFrames": true,
-  "inlineSpriteFrames_native": true,
+  "inlineSpriteFrames_native": false,
   "md5Cache": false,
   "mergeStartScene": true,
   "optimizeHotUpdate": false,
@@ -32,14 +32,14 @@
     "portrait": false,
     "upsideDown": false
   },
-  "packageName": "org.cocos2d.helloworld",
+  "packageName": "org.genxium.delaynomore",
   "qqplay": {
     "REMOTE_SERVER_ROOT": "",
     "orientation": "portrait"
   },
   "startScene": "2ff474d9-0c9e-4fe3-87ec-fbff7cae85b4",
   "title": "DelayNoMore",
-  "webOrientation": "portrait",
+  "webOrientation": "landscape",
   "wechatgame": {
     "REMOTE_SERVER_ROOT": "https://bgmoba.lokcol.com/static/",
     "appid": "wxf497c910a2a25edc",
@@ -48,13 +48,14 @@
   "xxteaKey": "4d54a3d5-e6f3-49",
   "zipCompressJs": true,
   "android": {
-    "packageName": "org.cocos2d.helloworld"
+    "packageName": "org.genxium.delaynomore"
   },
   "ios": {
-    "packageName": "org.cocos2d.helloworld"
+    "packageName": "org.genxium.delaynomore"
   },
   "mac": {
-    "packageName": "org.cocos2d.helloworld"
+    "packageName": "org.genxium.delaynomore"
   },
-  "win32": {}
+  "win32": {},
+  "includeAnySDK": false
 }

frontend/settings/builder.panel.json

@@ -1,7 +1,7 @@
 {
   "excludeScenes": [],
-  "packageName": "org.cocos2d.helloworld",
-  "platform": "web-mobile",
+  "packageName": "org.genxium.delaynomore",
+  "platform": "android",
   "startScene": "2d2f792f-a40c-49bb-a189-ed176a246e49",
-  "title": "HelloWorld"
-}
+  "title": "DelayNoMore"
+}

frontend/settings/project.json

@@ -34,9 +34,12 @@
   "design-resolution-width": 960,
   "excluded-modules": [
     "Collider",
+    "DragonBones",
     "Geom Utils",
+    "Intersection",
     "Mesh",
     "MotionStreak",
+    "NodePool",
     "Physics",
     "PageView",
     "PageViewIndicator",
@@ -68,7 +71,7 @@
     "shelter_z_reducer",
     "shelter"
   ],
-  "last-module-event-record-time": 1673930863015,
+  "last-module-event-record-time": 1674632533161,
   "simulator-orientation": false,
   "simulator-resolution": {
     "height": 640,

frontend/template.json

@@ -1,5 +1,5 @@
 {
-	"name": "TEMPLATES.helloworld.name",
-	"desc": "TEMPLATES.helloworld.desc",
+	"name": "DelayNoMore",
+	"desc": "DelayNoMore",
 	"banner": "template-banner.png"
-}
+}

jsexport/Makefile

@@ -4,24 +4,25 @@ all: help
 ## Available proxies for downloading go modules are listed in "https://github.com/golang/go/wiki/Modules#how-do-i-use-vendoring-with-modules-is-vendoring-going-away". 
 #GOPROXY=https://mirrors.aliyun.com/goproxy 
 GOPROXY=https://goproxy.io
+DST=../frontend/assets/scripts/modules
 
 serve:
 	gopherjs serve $(PROJECTNAME)
 
 clean: 
 	gopherjs clean
-	rm -f ../frontend/assets/plugin_scripts/jsexport.js
-	#rm -f ../frontend/assets/plugin_scripts/jsexport.js.map
+	rm -f $(DST)/jsexport.js
+	#rm -f $(DST)/jsexport.js.map
 
 build: clean
 	gopherjs build $(PROJECTNAME)
-	mv ./jsexport.js ../frontend/assets/plugin_scripts/	
-	#mv ./jsexport.js.map ../frontend/assets/plugin_scripts/
+	mv ./jsexport.js $(DST)/	
+	#mv ./jsexport.js.map $(DST)/
 
 build-min: clean
 	gopherjs build -m $(PROJECTNAME)
-	mv ./jsexport.js ../frontend/assets/plugin_scripts/	
-	#mv ./jsexport.js.map ../frontend/assets/plugin_scripts/
+	mv ./jsexport.js $(DST)/	
+	#mv ./jsexport.js.map $(DST)/
 
 .PHONY: help
 

jsexport/battle/battle.go

@@ -22,7 +22,7 @@ const (
 	GRAVITY_X = int32(0)
 	GRAVITY_Y = -int32(float64(0.5) * WORLD_TO_VIRTUAL_GRID_RATIO) // makes all "playerCollider.Y" a multiple of 0.5 in all cases
 
-	INPUT_DELAY_FRAMES = int32(8)  // in the count of render frames
+	INPUT_DELAY_FRAMES = int32(6)  // in the count of render frames
 	INPUT_SCALE_FRAMES = uint32(2) // inputDelayedAndScaledFrameId = ((originalFrameId - InputDelayFrames) >> InputScaleFrames)
 	NST_DELAY_FRAMES   = int32(16) // network-single-trip delay in the count of render frames, proposed to be (InputDelayFrames >> 1) because we expect a round-trip delay to be exactly "InputDelayFrames"
 
@@ -644,7 +644,7 @@ func ApplyInputFrameDownsyncDynamicsOnSingleRenderFrame(inputsBuffer *RingBuffer
 
 		if 0 == currPlayerDownsync.FramesToRecover {
 			prevCapturedByInertia := currPlayerDownsync.CapturedByInertia
-			isWallJumping := (currPlayerDownsync.Speed < intAbs(currPlayerDownsync.VelX))
+			isWallJumping := (chConfig.OnWallEnabled && chConfig.WallJumpingInitVelX == intAbs(currPlayerDownsync.VelX))
 			/*
 			   if isWallJumping {
 			       fmt.Printf("joinIndex=%d is wall jumping\n{renderFrame.id: %d, currPlayerDownsync.Speed: %d, currPlayerDownsync.VelX: %d}\n", currPlayerDownsync.JoinIndex, currRenderFrame.Id, currPlayerDownsync.Speed, currPlayerDownsync.VelX)
@@ -669,9 +669,11 @@ func ApplyInputFrameDownsyncDynamicsOnSingleRenderFrame(inputsBuffer *RingBuffer
 				*/
 				//fmt.Printf("joinIndex=%d is not wall jumping and not aligned w/ inertia\n{renderFrame.id: %d, effDx: %d, thatPlayerInNextFrame.VelX: %d}\n", currPlayerDownsync.JoinIndex, currRenderFrame.Id, effDx, thatPlayerInNextFrame.VelX)
 				thatPlayerInNextFrame.CapturedByInertia = true
-				thatPlayerInNextFrame.FramesToRecover = chConfig.InertiaFramesToRecover
 				if exactTurningAround {
 					thatPlayerInNextFrame.CharacterState = ATK_CHARACTER_STATE_TURNAROUND
+					thatPlayerInNextFrame.FramesToRecover = chConfig.InertiaFramesToRecover
+				} else {
+					thatPlayerInNextFrame.FramesToRecover = (chConfig.InertiaFramesToRecover >> 1)
 				}
 			} else {
 				thatPlayerInNextFrame.CapturedByInertia = false
@@ -752,6 +754,8 @@ func ApplyInputFrameDownsyncDynamicsOnSingleRenderFrame(inputsBuffer *RingBuffer
 			if ATK_CHARACTER_STATE_ONWALL == currPlayerDownsync.CharacterState && !jumpedOrNotList[i] {
 				thatPlayerInNextFrame.VelX += GRAVITY_X
 				thatPlayerInNextFrame.VelY = chConfig.WallSlidingVelY
+			} else if ATK_CHARACTER_STATE_DASHING == currPlayerDownsync.CharacterState {
+				thatPlayerInNextFrame.VelX += GRAVITY_X
 			} else {
 				thatPlayerInNextFrame.VelX += GRAVITY_X
 				thatPlayerInNextFrame.VelY += GRAVITY_Y

jsexport/battle/characterConfig.go

@@ -49,7 +49,7 @@ var Characters = map[int]*CharacterConfig{
 		JumpingInitVelY:        int32(float64(8) * WORLD_TO_VIRTUAL_GRID_RATIO),
 		JumpingFramesToRecover: int32(2),
 
-		InertiaFramesToRecover: int32(8),
+		InertiaFramesToRecover: int32(9),
 
 		DashingEnabled: false,
 		OnWallEnabled:  false,
@@ -98,7 +98,7 @@ var Characters = map[int]*CharacterConfig{
 		JumpingInitVelY:        int32(float64(7.5) * WORLD_TO_VIRTUAL_GRID_RATIO),
 		JumpingFramesToRecover: int32(2),
 
-		InertiaFramesToRecover: int32(8),
+		InertiaFramesToRecover: int32(9),
 
 		DashingEnabled:             true,
 		OnWallEnabled:              true,
@@ -154,7 +154,7 @@ var Characters = map[int]*CharacterConfig{
 		JumpingInitVelY:        int32(float64(7.8) * WORLD_TO_VIRTUAL_GRID_RATIO),
 		JumpingFramesToRecover: int32(2),
 
-		InertiaFramesToRecover: int32(8),
+		InertiaFramesToRecover: int32(9),
 
 		DashingEnabled: false,
 		OnWallEnabled:  false,
@@ -551,9 +551,9 @@ var skills = map[int]*Skill{
 		},
 	},
 	12: &Skill{
-		RecoveryFrames:        int32(15),
-		RecoveryFramesOnBlock: int32(15),
-		RecoveryFramesOnHit:   int32(15),
+		RecoveryFrames:        int32(12),
+		RecoveryFramesOnBlock: int32(12),
+		RecoveryFramesOnHit:   int32(12),
 		ReleaseTriggerType:    int32(1),
 		BoundChState:          ATK_CHARACTER_STATE_DASHING,
 		Hits: []interface{}{

udp_server_prac/main.go

@@ -0,0 +1,39 @@
+package main
+
+import (
+	"fmt"
+	"net"
+	"strings"
+)
+
+func main() {
+	conn, err := net.ListenUDP("udp", &net.UDPAddr{
+		Port: 3000,
+		IP:   net.ParseIP("0.0.0.0"),
+	})
+	if err != nil {
+		panic(err)
+	}
+
+	defer conn.Close()
+	fmt.Printf("server listening %s\n", conn.LocalAddr().String())
+
+	for {
+		message := make([]byte, 2046)
+		rlen, remote, err := conn.ReadFromUDP(message[:])
+		if err != nil {
+			panic(err)
+		}
+
+		data := strings.TrimSpace(string(message[:rlen]))
+		fmt.Printf("received: %d bytes, content=%s from %s\n", rlen, data, remote)
+
+		// echo
+		rlen, wrerr := conn.WriteTo(message[0:rlen], remote)
+		if wrerr != nil {
+			fmt.Printf("net.WriteTo() error: %s\n", wrerr)
+		} else {
+			fmt.Printf("Wrote %d bytes to socket\n", rlen)
+		}
+	}
+}