Updated README.

Drafted bullet explosion data structure.

.gitignore

@@ -1,3 +1,5 @@
+.vs
+**/.vs
 battle_srv/test_cases/test_cases
 battle_srv/test_cases/tests
 *.pid
@@ -132,3 +134,5 @@ gradle/*
 *.project
 
 *~
+jsexport/jsexport.js*
+battle_srv/room_*.txt

ConcerningEdgeCases.md

@@ -1,15 +1,21 @@
-# Potential avalanche from local lag
+# What to be concerned for internet syncing
+1. Server received too late (solution: force confirmation)
+2. Client received too late (solution: prediction and frame chasing, big impact on user experience because the graphics will be inconsistent if mismatches occur too often)
+
+# Potential avalanche from `ACTIVE SLOW TICKER`
 Under the current "input delay" algorithm, the lag of a single player would cause all the other players to receive outdated commands, e.g. when at a certain moment   
-- player#1: renderFrameId = 100, significantly lagged due to local CPU overheated
+- player#1: renderFrameId = 100, **still active in battle but significantly lagged** due to local CPU overheated
 - player#2: renderFrameId = 240
 - player#3: renderFrameId = 239
 - player#4: renderFrameId = 242
 
 players #2, #3 #4 would receive "outdated(in their subjective feelings) but all-confirmed commands" from then on, thus forced to rollback and chase many frames - the lag due to "large range of frame-chasing" would then further deteriorate the situation - like an avalanche.   
 
-In a "no-server & p2p" setup, I couldn't think of a proper way to cope with such edge case. Solely on the frontend we could only mitigate the impact to players #2, #3, #4, e.g. a potential lag due to "large range of frame-chasing" is proactively avoided in `<proj-root>/frontend/assets/scripts/Map.js, function update(dt)`.
+**BE CAUTIOUS, THIS `ACTIVE SLOW TICKER` SITUATION HAPPENS QUITE OFTEN FOR REAL DEVICES** where different operating systems and temporary CPU overheat cause different lags for different player in a same battle! If not properly handled, slow tickers would be `inputing in the "history" of other players`, resulting in too frequent prediction mismatch and thus inconsistent graphics for other players!
 
-However in a "server as authority" setup, the server could force confirming an inputFrame without player#1's upsync, and notify player#1 to apply a "roomDownsyncFrame" as well as drop all its outdated local inputFrames. 
+In a "no-server & p2p" setup, I couldn't think of a proper way to cope with such edge case. Solely on the frontend we could only mitigate the impact to players #2, #3, #4, e.g. a potential lag due to "large range of frame-chasing" is proactively avoided in `<proj-root>/frontend/assets/scripts/Map.js, function update(dt)`. 
+
+To be fair, **a "p2p" setup can reduce round-trip to single-trip**, but w/o a point of authority in such case player#1 needs a way to recognize the slowness (e.g. check the received peer inputs) and ticks faster for a while to catch up; in contrast in a "server as authority" setup, the server could force confirming an inputFrame without player#1's upsync, and notify player#1 to apply a "roomDownsyncFrame" as well as drop all its outdated local inputFrames. 
 
 # Start up frames
 renderFrameId      |   generatedInputFrameId    |  toApplyInputFrameId            
@@ -41,3 +47,46 @@ renderFrameId             |   toApplyInputFrameId
 ..., ..., ..., 368        |   90
 369, 370, 371, 372        |   91
 373, 374, 375, ...        |   92      
+
+# Would using UDP instead of TCP yield better synchronization performance?
+Yes, but with non-trivial efforts.
+
+## Neat advantage using UDP 
+Let's check an actual use case. As soon as an inputFrame becomes all-confirmed, the server should downsync it to all active players -- and upon reception loss of the packet containing this "all-confirmed downsync inputFrame" to a certain player, the server MUST retransmit another packet containing the same inputFrame to that player. 
+
+To apply UDP on this use case, additional `ack & retransmission mechanism` would be required, which is a moderately difficult task -- don't just pick a 3rd party lib using TCP flow-control alike `sliding window mechanism`, e.g. [RUDP](https://www.geeksforgeeks.org/reliable-user-datagram-protocol-rudp/)! Here's why. 
+
+Assume that the server is downsyncing `sequence of packets[#1, #2, #3, #4, #5, #6, #7, #8, #9, #10]`, when using TCP we get the advantage that each active player is guaranteed to receive that same sequence in the same order -- however in a bad, lossy network when `packet#2` got lost several times for a certain player whose reception window size is just 5, it has to wait for the arrival of `packet#2` at `[_, #3, #4, #5, #6]`, thus unable to process `[#7, #8, #9, #10]` which could contain `unpredictable inputFrame` while `#2` being `correct prediction` for that player.   
+
+That's so neat but still an advantage for using UDP! Yet if the TCP flow-control alike `sliding window mechanism` is employed on UDP, such advantage'd be compromised. 
+
+To summarize, if UDP is used we need 
+- an `ack & retransmission mechanism` built on top of it to guarantee reception of critical packets for active players, and 
+- reception order is not necessary to be reserved (mimic [markConfirmationIfApplicable](https://github.com/genxium/DelayNoMore/blob/v0.9.14/battle_srv/models/room.go#L1085) to maintain `lastAllConfirmedInputFrameId`), but 
+- TCP flow-control alike `sliding window mechanism` should be avoided to gain advantage over TCP. 
+
+## Additional hassles to care about using UDP
+When using UDP, it's also necessary to verify authorization of each incoming packet, e.g. by simple time limited symmetric key, due to being connectionless.
+
+## Why not hybrid?
+Instead of replacing all use of TCP by UDP, it's more reasonable to keep using TCP for login and the "all-confirmed downsync inputFrames" from server to players (and possibly "upsync inputFrames" from player to server, but tradeoff on that remains to be discussed), while using a `UDP secondary session` for broadcasting inputFrames of each individual player asap (either using p2p or not) just for **better prediction performance**!
+
+## How do you actually implement the `UDP secondary session`?
+It's not a global consensus, but in practice many UDP communications are platform specific due to their paired asynchronous I/O choices, e.g. epoll in Linux and kqueue in BSD-ish. Of course there're many 3rd party higher level encapsulated tools for cross-platform use but that introduces extra debugging when things go wrong.
+
+Therefore, the following plan doesn't assume use of any specific 3rd party encapsulation of UDP communication.
+![UDP_secondary_session](./charts/UDPEssentials.jpg)
+
+# Would using WebRTC for all frontends be a `UDP for all` solution?
+Theoretically yes.
+
+## Plan to integrate WebRTC
+The actual integration of WebRTC to enable `browser v.s. native app w/ WebRTC` requires detailed planning :)
+
+In my current implementation, there's only 1 backend process and it's responsible for all of the following things. The plan for integrating/migrating each item is written respectively.
+- TURN for UDP tunneling/relay
+	- Some minor modification to [Room.PlayerSecondaryDownsyncSessionDict](https://github.com/genxium/DelayNoMore/blob/365177a3af6033f1cd629a4a4d59beb4557cc311/battle_srv/models/room.go#L126) should be enough to yield a WebRTC API friendly TURN. It's interesting that [though UDP based in transport layer, a WebRTC session is stateful and more similar to WebSocket in terms of API](https://developer.mozilla.org/en-US/docs/Web/API/WebRTC_API).  
+- STUN for UDP holepunching
+	- Some minor modification to [Player.UdpAddr](https://github.com/genxium/DelayNoMore/blob/365177a3af6033f1cd629a4a4d59beb4557cc311/battle_srv/models/player.go#L56) should be enough to yield a WebRTC API friendly STUN.  
+- reconnection recovery 
+	- Not sure whether or not I should separate this feature from STUN and TURN, but if I were to do so, [both `Room.RenderFrameBuffer` and `Room.InputsBuffer`](https://github.com/genxium/DelayNoMore/blob/365177a3af6033f1cd629a4a4d59beb4557cc311/battle_srv/models/room.go) should be moved to a shared fast I/O storage (e.g. using Redis) to achieve the same level of `High Availability` in design as STUN and TURN.   

MULTIHIT_ROADMAP.md

@@ -0,0 +1,7 @@
+Major goals
+- Create several skills that can be chained by pressing "btnA" 3 times, while the 2nd skill cancels the last hit of 1st skill before the latters' FramesToRecover is over, same goes with 2nd->3rd transition. 
+- Note that each skill can contain "multihit".
+
+Minor goals
+- Split jumping anim into "once" part and "keep" part, depending on "character.framesElapsedInChState" we should play the corresponding part
+- Add new "chState = STUNNED", which is applicable to both on ground and in air, while "inAir && STUNNED", "character.FramesToRecover" is regarded as infinite. If implemented, make the last hit of the aforementioned 3rd skill "pushback opponent to air". 

README.md

@@ -1,16 +1,30 @@
 # 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).
+This project is a demo for a websocket-based rollback netcode inspired by [GGPO](https://github.com/pond3r/ggpo/blob/master/doc/README.md). 
 
-_(the following gif is sped up to 2x for file size reduction)_
-![gif_demo](./charts/melee_attack_2.gif)
+[Demo recorded over INTERNET (Phone-Wifi v.s. PC-Wifi UDP holepunched) using an input delay of 6 frames](https://pan.baidu.com/s/1UArwqDShLoPjYppjjqsTqQ?pwd=10wc), and it feels SMOOTH when playing!
 
-Please also checkout [this demo video](https://pan.baidu.com/s/1fy0CuFKnVP_Gn2cDfrj6yg?pwd=q5uc) 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.
+![Merged_cut_annotated_spedup](./charts/Merged_cut_annotated_spedup.gif)
 
-The video mainly shows the following features.
-- The backend receives inputs from frontend peers and broadcasts back for synchronization.
-- The game is recovered for a player upon reconnection.
-- Both backend(Golang) and frontend(JavaScript) execute collision detection and handle collision contacts by the same algorithm. The backend dynamics is togglable by [Room.BackendDynamicsEnabled](https://github.com/genxium/DelayNoMore/blob/v0.5.2/battle_srv/models/room.go#L813), but **when turned off the game couldn't support recovery upon reconnection**.
+(battle between 2 celluar 4G users using Android phones, [original video here](https://pan.baidu.com/s/1m50d-VZxEGT3IgeZtww49g?pwd=eqx1))
+
+![Phone4g_battle_spedup](./charts/Phone4g_battle_spedup.gif)
+
+**Since v1.0.13, smoothness in worst cases (e.g. turn-around on ground, in air and after dashing) is drastically improved due to update of prediction approach. The gifs and corresponding screenrecordings above are not updated because there's no big difference when network is good -- however, `input delay` is now set to `4 frames` -- while `input delay = 6 frames` was used in the screenrecordings -- and smoothness is even better now (well there's [a new screenrecording for PcWifi vs Android4g here](https://pan.baidu.com/s/1iNrQ2l_wqbWkURMIfyG88w?pwd=fe2f)).** Key changes are listed below.
+- [change#1](https://github.com/genxium/DelayNoMore/blob/ea14ced958415dbf4ec1bef89088a3c7607fd8b3/jsexport/battle/battle.go#L647)
+- [change#2](https://github.com/genxium/DelayNoMore/blob/ea14ced958415dbf4ec1bef89088a3c7607fd8b3/frontend/assets/scripts/Map.js#L1446)
+
+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. This video shows how the UDP holepunched p2p performs for [Phone-Wifi v.s. PC-Wifi (viewed by PC side)](https://pan.baidu.com/s/1K6704bJKlrSBTVqGcXhajA?pwd=l7ok).
+- 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 [Phone-4G v.s. PC-Wifi (merged view@v0.9.34, excellent synchronization)](https://pan.baidu.com/s/1yeIrN5TSf6_av_8-N3vdVg?pwd=7tzw). 
+- Browser vs `native app` is possible but in that case only websocket is used. For WebRTC integration plan please see [ConcerningEdgeCases](./ConcerningEdgeCases.md). You might also be interested in visiting [netplayjs](https://github.com/rameshvarun/netplayjs) to see how others use WebRTC for browser game synchronization as well.
+
+
+# Notable Features
+- Backend dynamics toggle via [Room.BackendDynamicsEnabled](https://github.com/genxium/DelayNoMore/blob/v0.9.14/battle_srv/models/room.go#L786)
+- Recovery upon reconnection (only if backend dynamics is ON)
+- Automatically correction for "slow ticker", especially "active slow ticker" which is well-known to be a headache for input synchronization
+- Frame data logging toggle for both frontend & backend, useful for debugging out of sync entities when developing new features
 
 _(how input delay roughly works)_
 
@@ -18,7 +32,10 @@ _(how input delay roughly works)_
 
 _(how rollback-and-chase in this project roughly works)_
 
+![server_clients](./charts/ServerClients.jpg)
 ![rollback_and_chase_intro](./charts/RollbackAndChase.jpg)
+
+(By use of [GopherJs](https://github.com/gopherjs/gopherjs), the frontend codes for dynamics are now automatically generated)
 ![floating_point_accumulation_err](./charts/AvoidingFloatingPointAccumulationErr.jpg)
 
 # 1. Building & running
@@ -26,7 +43,8 @@ _(how rollback-and-chase in this project roughly works)_
 ## 1.1 Tools to install 
 ### Backend
 - [Command Line Tools for Xcode](https://developer.apple.com/download/all/?q=command%20line%20tools) (on OSX) or [TDM-GCC](https://jmeubank.github.io/tdm-gcc/download/) (on Windows) (a `make` executable mandatory)
-- [Golang1.19.1](https://golang.org/dl/) (mandatory, in China please try a mirror site like [that of ustc](https://mirrors.ustc.edu.cn/golang/))
+- [Golang1.18.6](https://golang.org/dl/) (brought down to 1.18 for _GopherJs_ support, mandatory, in China please try a mirror site like [that of ustc](https://mirrors.ustc.edu.cn/golang/))
+- [GopherJs1.18.0-beta1](https://github.com/gopherjs/gopherjs/tree/v1.18.0-beta1) (optional, only for developemnt)
 - [MySQL 5.7](https://dev.mysql.com/downloads/windows/installer/5.7.html) (mandatory, for OSX not all versions of 5.7 can be found thus 5.7.24 is recommended)
 - [Redis 3.0.503 or above](https://redis.io/download/) (mandatory)
 - [skeema](https://www.skeema.io/) (optional, only for convenient MySQL schema provisioning)
@@ -59,7 +77,7 @@ user@proj-root/battle_srv/configs> cp -r ./configs.template ./configs
 user@proj-root/frontend/assets/plugin_scripts> cp ./conf.js.template ./conf.js
 ```
 
-## 1.2 Actual building & running
+## 1.3 Actual building & running
 ### Backend 
 ```
 ### The following command runs mysql-server in foreground, it's almost NEVER run in such a way, please find a proper way to run it for yourself
@@ -78,7 +96,14 @@ The easy way is to try out 2 players with test accounts on a same machine.
 - Open one browser instance, visit _http://localhost:7456?expectedRoomId=1_, input `add`on the username box and click to request a captcha, this is a test account so a captcha would be returned by the backend and filled automatically (as shown in the figure below), then click and click to proceed to a matching scene.
 - Open another browser instance, visit _http://localhost:7456?expectedRoomId=1_, input `bdd`on the username box and click to request a captcha, this is another test account so a captcha would be returned by the backend and filled automatically, then click and click to proceed, when matched a `battle`(but no competition rule yet) would start.
 - Try out the onscreen virtual joysticks to move the cars and see if their movements are in-sync.
-![screenshot-2](./charts/screenshot-2.png)
+
+![How-to-play-1](./charts/How-to-play-1.png)
+
+![How-to-play-2](./charts/How-to-play-2.png)
+
+![How-to-play-3](./charts/How-to-play-3.png)
+
+![How-to-play-4](./charts/How-to-play-4.png)
 
 ## 2 Troubleshooting
 
@@ -88,3 +113,66 @@ ErrFatal        {"err": "MISCONF Redis is configured to save RDB snapshots, but
 ```
 
 Just restart your `redis-server` process.
+
+### 2.2 Why not show "PING value" on frontend display? 
+The most important reason for not showing "PING value" is simple: in most games the "PING value" is collected by a dedicated kernel thread which doesn't interfere the UI thread or the primary networking thread. As this demo primarily runs on browser by far, I don't have this capability easily.
+
+Moreover, in practice I found that to spot sync anomalies, the following tools are much more useful than the "PING VALUE".  
+- 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"
+shell> cd ./frontend/build/jsb-link/frameworks/runtime-src/proj.win32 && MSBUILD DelayNoMore.vcxproj -property:Configuration=Debug
+```
+or 
+```
+shell> cd <proj-root>
+shell> /path/to/CocosCreator.exe --path ./frontend --build "platform=win32;debug=false"
+shell> cd ./frontend/build/jsb-link/frameworks/runtime-src/proj.win32 && MSBUILD DelayNoMore.vcxproj -property:Configuration=Release
+```
+
+for release.
+
+If `MSBUILD` command is not yet added to `PATH`, Use `Get-Command MSBUILD` in `Developer Command Prompt for VS 2017/2019` to see where the command should come from and add it to `PATH`.
+
+Similarly for Android release build
+```
+shell> cd <proj-root>
+shell> /path/to/CocosCreator.exe --path ./frontend --build "platform=android;debug=false"
+shell> cd ./frontend/build/jsb-link/frameworks/runtime-src/proj.android-studio && ./gradlew assembleRelease
+```
+
+### 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/Makefile

@@ -1,10 +1,27 @@
 PROJECTNAME=server.exe
 ROOT_DIR=.
+#GOPROXY=https://mirrors.aliyun.com/goproxy 
+GOPROXY=https://goproxy.io
 all: help
 
+# To install `gojson` executable
+# ```
+# go install github.com/ChimeraCoder/gojson/gojson@latest
+# ```
+# 
+# OS detection reference https://stackoverflow.com/a/12099167
 gen-constants:
 	gojson -pkg common -name constants -input common/constants.json  -o common/constants_struct.go
+ifeq ($(OS),Windows_NT)
 	sed -i 's/int64/int/g' common/constants_struct.go
+else
+	UNAME_S := $(shell uname -s)
+	ifeq ($(UNAME_S),Darwin)
+		sed -i '' -e 's/int64/int/g' common/constants_struct.go
+	else
+		sed -i 's/int64/int/g' common/constants_struct.go
+	endif
+endif
 
 run-test: build
 	ServerEnv=TEST ./$(PROJECTNAME)
@@ -13,13 +30,13 @@ run-test-and-hotreload:
 	ServerEnv=TEST CompileDaemon -log-prefix=false -build="go build"  -command="./$(PROJECTNAME)"
 
 build:
-	go build -o $(ROOT_DIR)/$(PROJECTNAME)
+	GOPROXY=$(GOPROXY) go build -o $(ROOT_DIR)/$(PROJECTNAME)
 
 run-prod: build-prod
 	./$(PROJECTNAME)
 
 build-prod:
-	go build -ldflags "-s -w -X main.VERSION=$(shell git rev-parse --short HEAD)-$(shell date "+%Y%m%d-%H:%M:%S")" -o $(ROOT_DIR)/$(PROJECTNAME)
+	GOPROXY=$(GOPROXY) go build -ldflags "-s -w -X main.VERSION=$(shell git rev-parse --short HEAD)-$(shell date "+%Y%m%d-%H:%M:%S")" -o $(ROOT_DIR)/$(PROJECTNAME)
 
 .PHONY: help
 

battle_srv/api/v1/player.go

@@ -85,7 +85,6 @@ func (p *playerController) SMSCaptchaGet(c *gin.Context) {
 		c.Set(api.RET, Constants.RetCode.SmsCaptchaRequestedTooFrequently)
 		return
 	}
-	Logger.Info("A new SmsCaptcha record is needed for: ", zap.String("key", redisKey))
 	pass := false
 	var succRet int
 	if Conf.General.ServerEnv == SERVER_ENV_TEST {
@@ -93,32 +92,28 @@ func (p *playerController) SMSCaptchaGet(c *gin.Context) {
 		if nil == err && nil != player {
 			pass = true
 			succRet = Constants.RetCode.IsTestAcc
+			Logger.Info("A new SmsCaptcha record is needed for: ", zap.String("key", redisKey), zap.Any("player", player))
 		}
 	}
 
-	if !pass {
-		player, err := models.GetPlayerByName(req.Num)
-		if nil == err && nil != player {
-			pass = true
-			succRet = Constants.RetCode.IsBotAcc
-		}
-	}
-
-	if !pass {
-		if RE_PHONE_NUM.MatchString(req.Num) {
-			succRet = Constants.RetCode.Ok
-			pass = true
-		}
-		if req.CountryCode == "86" {
-			if RE_CHINA_PHONE_NUM.MatchString(req.Num) {
-				succRet = Constants.RetCode.Ok
-				pass = true
-			} else {
-				succRet = Constants.RetCode.InvalidRequestParam
-				pass = false
+	/*
+		    // Real phonenum is not supported yet!
+			if !pass {
+				if RE_PHONE_NUM.MatchString(req.Num) {
+					succRet = Constants.RetCode.Ok
+					pass = true
+				}
+				if req.CountryCode == "86" {
+					if RE_CHINA_PHONE_NUM.MatchString(req.Num) {
+						succRet = Constants.RetCode.Ok
+						pass = true
+					} else {
+						succRet = Constants.RetCode.InvalidRequestParam
+						pass = false
+					}
+				}
 			}
-		}
-	}
+	*/
 	if !pass {
 		c.Set(api.RET, Constants.RetCode.InvalidRequestParam)
 		return
@@ -481,16 +476,6 @@ func (p *playerController) maybeCreateNewPlayer(req smsCaptchaReq) (*models.Play
 			Logger.Info("Got a test env player:", zap.Any("phonenum", req.Num), zap.Any("playerId", player.Id))
 			return player, nil
 		}
-	} else {
-		botPlayer, err := models.GetPlayerByName(req.Num)
-		if err != nil {
-			Logger.Error("Seeking bot player error:", zap.Error(err))
-			return nil, err
-		}
-		if botPlayer != nil {
-			Logger.Info("Got a bot player:", zap.Any("phonenum", req.Num), zap.Any("playerId", botPlayer.Id))
-			return botPlayer, nil
-		}
 	}
 
 	bind, err := models.GetPlayerAuthBinding(Constants.AuthChannel.Sms, extAuthID)

battle_srv/api/v1/player_test.go

@@ -74,7 +74,7 @@ func Test_SMSCaptchaGet_illegalPhone(t *testing.T) {
 
 func Test_SMSCaptchaGet_testAcc(t *testing.T) {
 	player, err := getTestPlayer()
-	if err == nil && player != nil {
+	if nil == err && nil != player {
 		resp := mustDoSmsCaptchaGetReq(fakeSMSCaptchReq(player.Name), t)
 		if resp.Ret != Constants.RetCode.IsTestAcc {
 			t.Fail()

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/common/constants.json

@@ -1,28 +1,29 @@
 {
   "RET_CODE": {
-    "__comment__":"基础",
-    "OK": 9000,
-    "UNKNOWN_ERROR": 9001,
-    "INVALID_REQUEST_PARAM": 9002,
-    "IS_TEST_ACC": 9003,
-    "MYSQL_ERROR": 9004,
-    "NONEXISTENT_ACT": 9005,
-    "LACK_OF_DIAMOND": 9006,
-    "LACK_OF_GOLD": 9007,
-    "LACK_OF_ENERGY": 9008,
-    "NONEXISTENT_ACT_HANDLER": 9009,
-    "LOCALLY_NO_AVAILABLE_ROOM": 9010,
-    "LOCALLY_NO_SPECIFIED_ROOM": 9011,
-    "PLAYER_NOT_ADDABLE_TO_ROOM": 9012,
-    "PLAYER_NOT_READDABLE_TO_ROOM": 9013,
-    "PLAYER_NOT_FOUND": 9014,
-    "PLAYER_CHEATING": 9015,
-    "WECHAT_SERVER_ERROR": 9016,
-    "IS_BOT_ACC": 9017,
+    "__comment__": "Websocket",
+    "OK": 3000,
+    "UNKNOWN_ERROR": 3001,
+    "INVALID_REQUEST_PARAM": 3002,
+    "IS_TEST_ACC": 3003,
+    "MYSQL_ERROR": 3004,
+    "NONEXISTENT_ACT": 3005,
+    "LACK_OF_DIAMOND": 3006,
+    "LACK_OF_GOLD": 3007,
+    "LACK_OF_ENERGY": 3008,
+    "NONEXISTENT_ACT_HANDLER": 3009,
+    "LOCALLY_NO_AVAILABLE_ROOM": 3010,
+    "LOCALLY_NO_SPECIFIED_ROOM": 3011,
+    "PLAYER_NOT_ADDABLE_TO_ROOM": 3012,
+    "PLAYER_NOT_READDABLE_TO_ROOM": 3013,
+    "PLAYER_NOT_FOUND": 3014,
+    "PLAYER_CHEATING": 3015,
+    "WECHAT_SERVER_ERROR": 3016,
+    "IS_BOT_ACC": 3017,
+    "ACTIVE_WATCHDOG": 3018,
+    "BATTLE_STOPPED": 3019,
+    "CLIENT_MISMATCHED_RENDER_FRAME": 3020,
 
-    "__comment__":"SMS",
-    "SMS_CAPTCHA_REQUESTED_TOO_FREQUENTLY": 5001,
-    "SMS_CAPTCHA_NOT_MATCH": 5002,
+    "__comment__": "OTHERS",
     "INVALID_TOKEN": 2001,
 
     "DUPLICATED": 2002,
@@ -39,12 +40,15 @@
     "FAILED_TO_DELETE": 2015,
     "FAILED_TO_CREATE": 2016,
     "INCORRECT_PHONE_NUMBER": 2018,
-    "INSUFFICIENT_MEM_TO_ALLOCATE_CONNECTION": 3001,
-    "PASSWORD_RESET_CODE_GENERATION_PER_EMAIL_TOO_FREQUENTLY": 4000,
-    "TRADE_CREATION_TOO_FREQUENTLY": 4002,
-    "MAP_NOT_UNLOCKED": 4003,
+    "INSUFFICIENT_MEM_TO_ALLOCATE_CONNECTION": 2019,
+    "PASSWORD_RESET_CODE_GENERATION_PER_EMAIL_TOO_FREQUENTLY": 2020,
+    "TRADE_CREATION_TOO_FREQUENTLY": 2021,
+    "MAP_NOT_UNLOCKED": 2022,
+    "GET_SMS_CAPTCHA_RESP_ERROR_CODE": 2023,
+    "SMS_CAPTCHA_REQUESTED_TOO_FREQUENTLY": 2024,
+    "SMS_CAPTCHA_NOT_MATCH": 2025,
+    "SAME_PLAYER_ALREADY_IN_SAME_ROOM": 2026,
 
-    "GET_SMS_CAPTCHA_RESP_ERROR_CODE": 5003,
     "NOT_IMPLEMENTED_YET": 65535
   },
   "AUTH_CHANNEL": {
@@ -62,6 +66,6 @@
   },
   "WS": {
     "INTERVAL_TO_PING": 2000,
-    "WILL_KICK_IF_INACTIVE_FOR": 6000
+    "WILL_KICK_IF_INACTIVE_FOR": 4000
   }
 }

battle_srv/common/constants_struct.go

@@ -15,10 +15,14 @@ type constants struct {
 		SmsValidResendPeriodSeconds int `json:"SMS_VALID_RESEND_PERIOD_SECONDS"`
 	} `json:"PLAYER"`
 	RetCode struct {
+		ActiveWatchdog                                   int    `json:"ACTIVE_WATCHDOG"`
+		BattleStopped                                    int    `json:"BATTLE_STOPPED"`
+		ClientMismatchedRenderFrame                      int    `json:"CLIENT_MISMATCHED_RENDER_FRAME"`
 		Duplicated                                       int    `json:"DUPLICATED"`
 		FailedToCreate                                   int    `json:"FAILED_TO_CREATE"`
 		FailedToDelete                                   int    `json:"FAILED_TO_DELETE"`
 		FailedToUpdate                                   int    `json:"FAILED_TO_UPDATE"`
+		GetSmsCaptchaRespErrorCode                       int    `json:"GET_SMS_CAPTCHA_RESP_ERROR_CODE"`
 		IncorrectCaptcha                                 int    `json:"INCORRECT_CAPTCHA"`
 		IncorrectHandle                                  int    `json:"INCORRECT_HANDLE"`
 		IncorrectPassword                                int    `json:"INCORRECT_PASSWORD"`
@@ -28,27 +32,27 @@ type constants struct {
 		InvalidEmailLiteral                              int    `json:"INVALID_EMAIL_LITERAL"`
 		InvalidRequestParam                              int    `json:"INVALID_REQUEST_PARAM"`
 		InvalidToken                                     int    `json:"INVALID_TOKEN"`
-		IsTestAcc                                        int    `json:"IS_TEST_ACC"`
 		IsBotAcc                                         int    `json:"IS_BOT_ACC"`
+		IsTestAcc                                        int    `json:"IS_TEST_ACC"`
 		LackOfDiamond                                    int    `json:"LACK_OF_DIAMOND"`
 		LackOfEnergy                                     int    `json:"LACK_OF_ENERGY"`
 		LackOfGold                                       int    `json:"LACK_OF_GOLD"`
+		LocallyNoAvailableRoom                           int    `json:"LOCALLY_NO_AVAILABLE_ROOM"`
+		LocallyNoSpecifiedRoom                           int    `json:"LOCALLY_NO_SPECIFIED_ROOM"`
 		MapNotUnlocked                                   int    `json:"MAP_NOT_UNLOCKED"`
 		MysqlError                                       int    `json:"MYSQL_ERROR"`
-		GetSmsCaptchaRespErrorCode                       int    `json:"GET_SMS_CAPTCHA_RESP_ERROR_CODE"`
 		NewHandleConflict                                int    `json:"NEW_HANDLE_CONFLICT"`
 		NonexistentAct                                   int    `json:"NONEXISTENT_ACT"`
 		NonexistentActHandler                            int    `json:"NONEXISTENT_ACT_HANDLER"`
-		LocallyNoAvailableRoom                           int    `json:"LOCALLY_NO_AVAILABLE_ROOM"`
-		LocallyNoSpecifiedRoom                           int    `json:"LOCALLY_NO_SPECIFIED_ROOM"`
-		PlayerNotAddableToRoom                           int    `json:"PLAYER_NOT_ADDABLE_TO_ROOM"`
-		PlayerNotReAddableToRoom                         int    `json:"PLAYER_NOT_READDABLE_TO_ROOM"`
-		PlayerNotFound                                   int    `json:"PLAYER_NOT_FOUND"`
-		PlayerCheating                                   int    `json:"PLAYER_CHEATING"`
 		NotImplementedYet                                int    `json:"NOT_IMPLEMENTED_YET"`
 		NoAssociatedEmail                                int    `json:"NO_ASSOCIATED_EMAIL"`
 		Ok                                               int    `json:"OK"`
 		PasswordResetCodeGenerationPerEmailTooFrequently int    `json:"PASSWORD_RESET_CODE_GENERATION_PER_EMAIL_TOO_FREQUENTLY"`
+		PlayerCheating                                   int    `json:"PLAYER_CHEATING"`
+		PlayerNotAddableToRoom                           int    `json:"PLAYER_NOT_ADDABLE_TO_ROOM"`
+		PlayerNotFound                                   int    `json:"PLAYER_NOT_FOUND"`
+		PlayerNotReaddableToRoom                         int    `json:"PLAYER_NOT_READDABLE_TO_ROOM"`
+		SamePlayerAlreadyInSameRoom                      int    `json:"SAME_PLAYER_ALREADY_IN_SAME_ROOM"`
 		SendEmailTimeout                                 int    `json:"SEND_EMAIL_TIMEOUT"`
 		SmsCaptchaNotMatch                               int    `json:"SMS_CAPTCHA_NOT_MATCH"`
 		SmsCaptchaRequestedTooFrequently                 int    `json:"SMS_CAPTCHA_REQUESTED_TOO_FREQUENTLY"`

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/go.mod

@@ -1,8 +1,9 @@
 module battle_srv
 
-go 1.19
+go 1.18
 
 require (
+	dnmshared v0.0.0
 	github.com/Masterminds/squirrel v0.0.0-20180815162352-8a7e65843414
 	github.com/davecgh/go-spew v1.1.1
 	github.com/gin-contrib/cors v0.0.0-20180514151808-6f0a820f94be
@@ -16,16 +17,15 @@ require (
 	github.com/jmoiron/sqlx v0.0.0-20180614180643-0dae4fefe7c0
 	github.com/logrusorgru/aurora v0.0.0-20181002194514-a7b3b318ed4e
 	github.com/robfig/cron v0.0.0-20180505203441-b41be1df6967
-	github.com/solarlune/resolv v0.5.1
 	github.com/thoas/go-funk v0.0.0-20180716193722-1060394a7713
 	go.uber.org/zap v1.9.1
 	google.golang.org/protobuf v1.28.1
-
-    dnmshared v0.0.0
+	jsexport v0.0.0
+	resolv v0.0.0
 )
 
 require (
-	github.com/ChimeraCoder/gojson v1.0.0 // indirect
+	github.com/ChimeraCoder/gojson v1.1.0 // indirect
 	github.com/fatih/color v1.7.0 // indirect
 	github.com/gin-contrib/sse v0.0.0-20170109093832-22d885f9ecc7 // indirect
 	github.com/githubnemo/CompileDaemon v1.0.0 // indirect
@@ -43,9 +43,11 @@ require (
 	golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 // indirect
 	gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 // indirect
 	gopkg.in/go-playground/validator.v8 v8.18.2 // indirect
-	gopkg.in/yaml.v2 v2.2.1 // indirect
+	gopkg.in/yaml.v2 v2.4.0 // indirect
 )
 
 replace (
 	dnmshared => ../dnmshared
+	jsexport => ../jsexport
+	resolv => ../resolv_tailored
 )

battle_srv/go.sum

@@ -2,6 +2,8 @@ github.com/ByteArena/box2d v1.0.2 h1:f7f9KEQWhCs1n516DMLzi5w6u0MeeE78Mes4fWMcj9k
 github.com/ByteArena/box2d v1.0.2/go.mod h1:LzEuxY9iCz+tskfWCY3o0ywYBRafDDugdSj+/YGI6sE=
 github.com/ChimeraCoder/gojson v1.0.0 h1:gAYKGTV+xfQ4+l/4C/nazPbiQDUidG0G3ukAJnE7LNE=
 github.com/ChimeraCoder/gojson v1.0.0/go.mod h1:nYbTQlu6hv8PETM15J927yM0zGj3njIldp72UT1MqSw=
+github.com/ChimeraCoder/gojson v1.1.0 h1:/6S8djl/jColpJGTYniA3xrqJWuKeyEozzPtpr5L4Pw=
+github.com/ChimeraCoder/gojson v1.1.0/go.mod h1:nYbTQlu6hv8PETM15J927yM0zGj3njIldp72UT1MqSw=
 github.com/Masterminds/squirrel v0.0.0-20180815162352-8a7e65843414 h1:VHdYPA0V0YgL97gdjHevN6IVPRX+fOoNMqcYvUAzwNU=
 github.com/Masterminds/squirrel v0.0.0-20180815162352-8a7e65843414/go.mod h1:xnKTFzjGUiZtiOagBsfnvomW+nJg2usB1ZpordQWqNM=
 github.com/Pallinder/go-randomdata v0.0.0-20180616180521-15df0648130a h1:0OnS8GR4uI3nau+f/juCZlAq+zCrsHXRJlENrUQ4eU8=
@@ -92,3 +94,5 @@ gopkg.in/go-playground/validator.v8 v8.18.2 h1:lFB4DoMU6B626w8ny76MV7VX6W2VHct2G
 gopkg.in/go-playground/validator.v8 v8.18.2/go.mod h1:RX2a/7Ha8BgOhfk7j780h4/u/RRjR0eouCJSH80/M2Y=
 gopkg.in/yaml.v2 v2.2.1 h1:mUhvW9EsL+naU5Q3cakzfE91YhliOondGd6ZrsDBHQE=
 gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
+gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=

battle_srv/main.go

@@ -23,9 +23,18 @@ import (
 	"github.com/gin-gonic/gin"
 	"github.com/robfig/cron"
 	"go.uber.org/zap"
+
+	"net"
+	// _ "net/http/pprof"
 )
 
 func main() {
+	/*
+		        // Only used for profiling
+			go func() {
+				http.ListenAndServe("0.0.0.0:6060", nil)
+			}()
+	*/
 	MustParseConfig()
 	MustParseConstants()
 	storage.Init()
@@ -34,7 +43,7 @@ func main() {
 		env_tools.MergeTestPlayerAccounts()
 	}
 	models.InitRoomHeapManager()
-	startScheduler()
+	// startScheduler()
 	router := gin.Default()
 	setRouter(router)
 
@@ -54,6 +63,7 @@ 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)
@@ -89,6 +99,7 @@ func setRouter(router *gin.Engine) {
 	router.StaticFS("/asset", http.Dir(filepath.Join(Conf.General.AppRoot, "asset")))
 	router.GET("/ping", f)
 	router.GET("/tsrht", ws.Serve)
+	router.GET("/tsrhtSecondary", ws.HandleSecondaryWsSessionForPlayer)
 
 	apiRouter := router.Group("/api")
 	{
@@ -113,3 +124,33 @@ 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/barrier.go

@@ -1,9 +0,0 @@
-package models
-
-import (
-	. "dnmshared/sharedprotos"
-)
-
-type Barrier struct {
-	Boundary *Polygon2D
-}

battle_srv/models/pb_type_convert.go

@@ -1,33 +1,234 @@
 package models
 
 import (
-	. "battle_srv/protos"
+	pb "battle_srv/protos"
+	"jsexport/battle"
 )
 
-func toPbPlayers(modelInstances map[int32]*Player, withMetaInfo bool) map[int32]*PlayerDownsync {
-	toRet := make(map[int32]*PlayerDownsync, 0)
+func toPbRoomDownsyncFrame(rdf *battle.RoomDownsyncFrame) *pb.RoomDownsyncFrame {
+	if nil == rdf {
+		return nil
+	}
+	ret := &pb.RoomDownsyncFrame{
+		Id:                     rdf.Id,
+		PlayersArr:             make([]*pb.PlayerDownsync, len(rdf.PlayersArr), len(rdf.PlayersArr)),
+		BulletLocalIdCounter:   rdf.BulletLocalIdCounter,
+		MeleeBullets:           make([]*pb.MeleeBullet, len(rdf.MeleeBullets), len(rdf.MeleeBullets)),
+		FireballBullets:        make([]*pb.FireballBullet, len(rdf.FireballBullets), len(rdf.FireballBullets)),
+		CountdownNanos:         rdf.CountdownNanos,
+		BackendUnconfirmedMask: rdf.BackendUnconfirmedMask,
+		ShouldForceResync:      rdf.ShouldForceResync,
+	}
+
+	for i, last := range rdf.PlayersArr {
+		pbPlayer := &pb.PlayerDownsync{
+			Id:                  last.Id,
+			VirtualGridX:        last.VirtualGridX,
+			VirtualGridY:        last.VirtualGridY,
+			DirX:                last.DirX,
+			DirY:                last.DirY,
+			VelX:                last.VelX,
+			VelY:                last.VelY,
+			FramesToRecover:     last.FramesToRecover,
+			FramesInChState:     last.FramesInChState,
+			ActiveSkillId:       last.ActiveSkillId,
+			ActiveSkillHit:      last.ActiveSkillHit,
+			FramesInvinsible:    last.FramesInvinsible,
+			Speed:               last.Speed,
+			BattleState:         last.BattleState,
+			CharacterState:      last.CharacterState,
+			InAir:               last.InAir,
+			OnWall:              last.OnWall,
+			OnWallNormX:         last.OnWallNormX,
+			OnWallNormY:         last.OnWallNormY,
+			CapturedByInertia:   last.CapturedByInertia,
+			JoinIndex:           last.JoinIndex,
+			BulletTeamId:        last.BulletTeamId,
+			ChCollisionTeamId:   last.ChCollisionTeamId,
+			Hp:                  last.Hp,
+			MaxHp:               last.MaxHp,
+			RevivalVirtualGridX: last.RevivalVirtualGridX,
+			RevivalVirtualGridY: last.RevivalVirtualGridY,
+			ColliderRadius:      last.ColliderRadius,
+			Score:               last.Score,
+			Removed:             last.Removed,
+		}
+		ret.PlayersArr[i] = pbPlayer
+	}
+
+	for i, last := range rdf.MeleeBullets {
+		pbBullet := &pb.MeleeBullet{
+			BulletLocalId:           last.BattleAttr.BulletLocalId,
+			OriginatedRenderFrameId: last.BattleAttr.OriginatedRenderFrameId,
+			OffenderJoinIndex:       last.BattleAttr.OffenderJoinIndex,
+			TeamId:                  last.BattleAttr.TeamId,
+
+			StartupFrames:      last.Bullet.StartupFrames,
+			CancellableStFrame: last.Bullet.CancellableStFrame,
+			CancellableEdFrame: last.Bullet.CancellableEdFrame,
+			ActiveFrames:       last.Bullet.ActiveFrames,
+
+			HitStunFrames:   last.Bullet.HitStunFrames,
+			BlockStunFrames: last.Bullet.BlockStunFrames,
+			PushbackVelX:    last.Bullet.PushbackVelX,
+			PushbackVelY:    last.Bullet.PushbackVelY,
+			Damage:          last.Bullet.Damage,
+
+			SelfLockVelX: last.Bullet.SelfLockVelX,
+			SelfLockVelY: last.Bullet.SelfLockVelY,
+
+			HitboxOffsetX: last.Bullet.HitboxOffsetX,
+			HitboxOffsetY: last.Bullet.HitboxOffsetY,
+			HitboxSizeX:   last.Bullet.HitboxSizeX,
+			HitboxSizeY:   last.Bullet.HitboxSizeY,
+
+			BlowUp: last.Bullet.BlowUp,
+
+			SpeciesId:       last.Bullet.SpeciesId,
+			ExplosionFrames: last.Bullet.ExplosionFrames,
+
+			BlState:         last.BlState,
+			FramesInBlState: last.FramesInBlState,
+		}
+		ret.MeleeBullets[i] = pbBullet
+	}
+
+	for i, last := range rdf.FireballBullets {
+		pbBullet := &pb.FireballBullet{
+			BulletLocalId:           last.BattleAttr.BulletLocalId,
+			OriginatedRenderFrameId: last.BattleAttr.OriginatedRenderFrameId,
+			OffenderJoinIndex:       last.BattleAttr.OffenderJoinIndex,
+			TeamId:                  last.BattleAttr.TeamId,
+
+			StartupFrames:      last.Bullet.StartupFrames,
+			CancellableStFrame: last.Bullet.CancellableStFrame,
+			CancellableEdFrame: last.Bullet.CancellableEdFrame,
+			ActiveFrames:       last.Bullet.ActiveFrames,
+
+			HitStunFrames:   last.Bullet.HitStunFrames,
+			BlockStunFrames: last.Bullet.BlockStunFrames,
+			PushbackVelX:    last.Bullet.PushbackVelX,
+			PushbackVelY:    last.Bullet.PushbackVelY,
+			Damage:          last.Bullet.Damage,
+
+			SelfLockVelX: last.Bullet.SelfLockVelX,
+			SelfLockVelY: last.Bullet.SelfLockVelY,
+
+			HitboxOffsetX: last.Bullet.HitboxOffsetX,
+			HitboxOffsetY: last.Bullet.HitboxOffsetY,
+			HitboxSizeX:   last.Bullet.HitboxSizeX,
+			HitboxSizeY:   last.Bullet.HitboxSizeY,
+
+			BlowUp: last.Bullet.BlowUp,
+
+			SpeciesId:       last.Bullet.SpeciesId,
+			ExplosionFrames: last.Bullet.ExplosionFrames,
+
+			BlState:         last.BlState,
+			FramesInBlState: last.FramesInBlState,
+
+			VirtualGridX: last.VirtualGridX,
+			VirtualGridY: last.VirtualGridY,
+			DirX:         last.DirX,
+			DirY:         last.DirY,
+			VelX:         last.VelX,
+			VelY:         last.VelY,
+			Speed:        last.Speed,
+		}
+		ret.FireballBullets[i] = pbBullet
+	}
+
+	return ret
+}
+
+func toPbPlayers(modelInstances map[int32]*Player, withMetaInfo bool) []*pb.PlayerDownsync {
+	toRet := make([]*pb.PlayerDownsync, len(modelInstances), len(modelInstances))
 	if nil == modelInstances {
 		return toRet
 	}
 
-	for k, last := range modelInstances {
-		toRet[k] = &PlayerDownsync{
-			Id:             last.Id,
-			VirtualGridX:   last.VirtualGridX,
-			VirtualGridY:   last.VirtualGridY,
-			DirX:           last.DirX,
-			DirY:           last.DirY,
-			ColliderRadius: last.ColliderRadius,
-			Speed:          last.Speed,
-			BattleState:    last.BattleState,
-			Score:          last.Score,
-			Removed:        last.Removed,
-			JoinIndex:      last.JoinIndex,
+	for _, last := range modelInstances {
+		pbPlayer := &pb.PlayerDownsync{
+			Id:                  last.Id,
+			VirtualGridX:        last.VirtualGridX,
+			VirtualGridY:        last.VirtualGridY,
+			DirX:                last.DirX,
+			DirY:                last.DirY,
+			VelX:                last.VelX,
+			VelY:                last.VelY,
+			FramesToRecover:     last.FramesToRecover,
+			FramesInChState:     last.FramesInChState,
+			ActiveSkillId:       last.ActiveSkillId,
+			ActiveSkillHit:      last.ActiveSkillHit,
+			FramesInvinsible:    last.FramesInvinsible,
+			Speed:               last.Speed,
+			BattleState:         last.BattleState,
+			CharacterState:      last.CharacterState,
+			InAir:               last.InAir,
+			OnWall:              last.OnWall,
+			OnWallNormX:         last.OnWallNormX,
+			OnWallNormY:         last.OnWallNormY,
+			CapturedByInertia:   last.CapturedByInertia,
+			JoinIndex:           last.JoinIndex,
+			BulletTeamId:        last.BulletTeamId,
+			ChCollisionTeamId:   last.ChCollisionTeamId,
+			Hp:                  last.Hp,
+			MaxHp:               last.MaxHp,
+			RevivalVirtualGridX: last.RevivalVirtualGridX,
+			RevivalVirtualGridY: last.RevivalVirtualGridY,
+			ColliderRadius:      last.ColliderRadius,
+			Score:               last.Score,
+			Removed:             last.Removed,
 		}
 		if withMetaInfo {
-			toRet[k].Name = last.Name
-			toRet[k].DisplayName = last.DisplayName
-			toRet[k].Avatar = last.Avatar
+			pbPlayer.Name = last.Name
+			pbPlayer.DisplayName = last.DisplayName
+			pbPlayer.Avatar = last.Avatar
+		}
+		toRet[last.JoinIndex-1] = pbPlayer
+	}
+
+	return toRet
+}
+
+func toJsPlayers(modelInstances map[int32]*Player) []*battle.PlayerDownsync {
+	toRet := make([]*battle.PlayerDownsync, len(modelInstances), len(modelInstances))
+	if nil == modelInstances {
+		return toRet
+	}
+
+	for _, last := range modelInstances {
+		toRet[last.JoinIndex-1] = &battle.PlayerDownsync{
+			Id:                  last.Id,
+			VirtualGridX:        last.VirtualGridX,
+			VirtualGridY:        last.VirtualGridY,
+			DirX:                last.DirX,
+			DirY:                last.DirY,
+			VelX:                last.VelX,
+			VelY:                last.VelY,
+			FramesToRecover:     last.FramesToRecover,
+			FramesInChState:     last.FramesInChState,
+			ActiveSkillId:       last.ActiveSkillId,
+			ActiveSkillHit:      last.ActiveSkillHit,
+			FramesInvinsible:    last.FramesInvinsible,
+			Speed:               last.Speed,
+			BattleState:         last.BattleState,
+			CharacterState:      last.CharacterState,
+			JoinIndex:           last.JoinIndex,
+			BulletTeamId:        last.BulletTeamId,
+			ChCollisionTeamId:   last.ChCollisionTeamId,
+			Hp:                  last.Hp,
+			MaxHp:               last.MaxHp,
+			RevivalVirtualGridX: last.RevivalVirtualGridX,
+			RevivalVirtualGridY: last.RevivalVirtualGridY,
+			ColliderRadius:      last.ColliderRadius,
+			InAir:               last.InAir,
+			OnWall:              last.OnWall,
+			OnWallNormX:         last.OnWallNormX,
+			OnWallNormY:         last.OnWallNormY,
+			CapturedByInertia:   last.CapturedByInertia,
+			Score:               last.Score,
+			Removed:             last.Removed,
 		}
 	}
 

battle_srv/models/player.go

@@ -8,11 +8,13 @@ import (
 	sq "github.com/Masterminds/squirrel"
 	"github.com/jmoiron/sqlx"
 	"go.uber.org/zap"
+	"net"
 )
 
 type PlayerBattleState struct {
 	ADDED_PENDING_BATTLE_COLLIDER_ACK   int32
 	READDED_PENDING_BATTLE_COLLIDER_ACK int32
+	READDED_BATTLE_COLLIDER_ACKED       int32
 	ACTIVE                              int32
 	DISCONNECTED                        int32
 	LOST                                int32
@@ -26,11 +28,12 @@ func InitPlayerBattleStateIns() {
 	PlayerBattleStateIns = PlayerBattleState{
 		ADDED_PENDING_BATTLE_COLLIDER_ACK:   0,
 		READDED_PENDING_BATTLE_COLLIDER_ACK: 1,
-		ACTIVE:                              2,
-		DISCONNECTED:                        3,
-		LOST:                                4,
-		EXPELLED_DURING_GAME:                5,
-		EXPELLED_IN_DISMISSAL:               6,
+		READDED_BATTLE_COLLIDER_ACKED:       2,
+		ACTIVE:                              3,
+		DISCONNECTED:                        4,
+		LOST:                                5,
+		EXPELLED_DURING_GAME:                6,
+		EXPELLED_IN_DISMISSAL:               7,
 	}
 }
 
@@ -44,9 +47,14 @@ type Player struct {
 	TutorialStage int       `db:"tutorial_stage"`
 
 	// other in-battle info fields
-	LastSentInputFrameId int32
-	AckingFrameId        int32
-	AckingInputFrameId   int32
+	LastConsecutiveRecvInputFrameId int32
+	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) {
@@ -69,13 +77,14 @@ func getPlayer(cond sq.Eq) (*Player, error) {
 		return nil, err
 	}
 	rows, err := storage.MySQLManagerIns.Queryx(query, args...)
-	if err != nil {
+	if nil != err {
 		return nil, err
 	}
 	cols, err := rows.Columns()
 	if nil != err {
 		panic(err)
 	}
+	cnt := 0
 	for rows.Next() {
 		// TODO: Do it more elegantly, but by now I don't have time to learn reflection of Golang
 		vals := rowValues(rows, cols)
@@ -96,10 +105,15 @@ func getPlayer(cond sq.Eq) (*Player, error) {
 				p.CreatedAt = int64(val.(int64))
 			}
 		}
-		Logger.Info("Queried player from db", zap.Any("cond", cond), zap.Any("p", p), zap.Any("pd", pd), zap.Any("cols", cols), zap.Any("rowValues", vals))
+		Logger.Debug("Queried player from db", zap.Any("cond", cond), zap.Any("p", p), zap.Any("pd", pd), zap.Any("cols", cols), zap.Any("rowValues", vals))
+		cnt++
+	}
+	if 0 < cnt {
+		p.PlayerDownsync = pd
+		return &p, nil
+	} else {
+		return nil, nil
 	}
-	p.PlayerDownsync = pd
-	return &p, nil
 }
 
 func (p *Player) Insert(tx *sqlx.Tx) error {

battle_srv/models/ringbuf.go

@@ -1,73 +0,0 @@
-package models
-
-type RingBuffer struct {
-	Ed        int32 // write index, open index
-	St        int32 // read index, closed index
-	EdFrameId int32
-	StFrameId int32
-	N         int32
-	Cnt       int32 // the count of valid elements in the buffer, used mainly to distinguish what "st == ed" means for "Pop" and "Get" methods
-	Eles      []interface{}
-}
-
-func NewRingBuffer(n int32) *RingBuffer {
-	return &RingBuffer{
-		Ed:   0,
-		St:   0,
-		N:    n,
-		Cnt:  0,
-		Eles: make([]interface{}, n),
-	}
-}
-
-func (rb *RingBuffer) Put(pItem interface{}) {
-	rb.Eles[rb.Ed] = pItem
-	rb.EdFrameId++
-	rb.Cnt++
-	rb.Ed++
-	if rb.Ed >= rb.N {
-		rb.Ed -= rb.N // Deliberately not using "%" operator for performance concern
-	}
-}
-
-func (rb *RingBuffer) Pop() interface{} {
-	if 0 == rb.Cnt {
-		return nil
-	}
-	pItem := rb.Eles[rb.St]
-	rb.StFrameId++
-	rb.Cnt--
-	rb.St++
-	if rb.St >= rb.N {
-		rb.St -= rb.N
-	}
-	return pItem
-}
-
-func (rb *RingBuffer) GetByOffset(offsetFromSt int32) interface{} {
-	if 0 == rb.Cnt {
-		return nil
-	}
-	arrIdx := rb.St + offsetFromSt
-	if rb.St < rb.Ed {
-		// case#1: 0...st...ed...N-1
-		if rb.St <= arrIdx && arrIdx < rb.Ed {
-			return rb.Eles[arrIdx]
-		}
-	} else {
-		// if rb.St >= rb.Ed
-		// case#2: 0...ed...st...N-1
-		if arrIdx >= rb.N {
-			arrIdx -= rb.N
-		}
-		if arrIdx >= rb.St || arrIdx < rb.Ed {
-			return rb.Eles[arrIdx]
-		}
-	}
-
-	return nil
-}
-
-func (rb *RingBuffer) GetByFrameId(frameId int32) interface{} {
-	return rb.GetByOffset(frameId - rb.StFrameId)
-}

battle_srv/models/room_heap_manager.go

@@ -5,6 +5,7 @@ import (
 	. "dnmshared"
 	"fmt"
 	"go.uber.org/zap"
+	"strings"
 	"sync"
 )
 
@@ -21,11 +22,13 @@ var (
 
 func (pPq *RoomHeap) PrintInOrder() {
 	pq := *pPq
-	fmt.Printf("The RoomHeap instance now contains:\n")
+	s := make([]string, 0)
+	s = append(s, fmt.Sprintf("The RoomHeap instance now contains:"))
 	for i := 0; i < len(pq); i++ {
-		fmt.Printf("{index: %d, roomID: %d, score: %.2f} ", i, pq[i].Id, pq[i].Score)
+		s = append(s, fmt.Sprintf("{index: %d, roomID: %d, score: %.2f} ", i, pq[i].Id, pq[i].Score))
 	}
-	fmt.Printf("\n")
+
+	Logger.Debug(strings.Join(s, "\n"))
 }
 
 func (pq RoomHeap) Len() int { return len(pq) }

battle_srv/models/watchdog.go

@@ -0,0 +1,27 @@
+package models
+
+import (
+	"time"
+)
+
+type Watchdog struct {
+	interval time.Duration
+	timer    *time.Timer
+}
+
+func NewWatchdog(interval time.Duration, callback func()) *Watchdog {
+	w := Watchdog{
+		interval: interval,
+		timer:    time.AfterFunc(interval, callback),
+	}
+	return &w
+}
+
+func (w *Watchdog) Stop() {
+	w.timer.Stop()
+}
+
+func (w *Watchdog) Kick() {
+	w.timer.Stop()
+	w.timer.Reset(w.interval)
+}

battle_srv/start_daemon.sh

@@ -7,6 +7,7 @@ fi
 
 basedir=$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )
 
+PROJECTNAME=server.exe
 OS_USER=$USER
 ServerEnv=$1
 LOG_PATH="/var/log/treasure-hunter.log"
@@ -17,5 +18,5 @@ PID_FILE="$basedir/treasure-hunter.pid"
 sudo su - root -c "touch $LOG_PATH" 
 sudo su - root -c "chown $OS_USER:$OS_USER $LOG_PATH" 
 
-ServerEnv=$ServerEnv $basedir/server >$LOG_PATH 2>&1 &
+ServerEnv=$ServerEnv $basedir/$PROJECTNAME >$LOG_PATH 2>&1 &
 echo $! > $PID_FILE

battle_srv/ws/serve.go

@@ -10,13 +10,13 @@ import (
 	"github.com/golang/protobuf/proto"
 	"github.com/gorilla/websocket"
 	"go.uber.org/zap"
+	"net"
 	"net/http"
 	"strconv"
 	"sync/atomic"
 	"time"
 
 	. "dnmshared"
-	"runtime/debug"
 )
 
 const (
@@ -47,10 +47,20 @@ func Serve(c *gin.Context) {
 		c.AbortWithStatus(http.StatusBadRequest)
 		return
 	}
-	Logger.Info("Finding PlayerLogin record for ws authentication:", zap.Any("intAuthToken", token))
+
 	boundRoomId := 0
-	expectRoomId := 0
+	expectedRoomId := 0
+	speciesId := 0
 	var err error
+	if speciesIdStr, hasSpeciesId := c.GetQuery("speciesId"); hasSpeciesId {
+		speciesId, err = strconv.Atoi(speciesIdStr)
+		if err != nil {
+			// TODO: Abort with specific message.
+			c.AbortWithStatus(http.StatusBadRequest)
+			return
+		}
+	}
+
 	if boundRoomIdStr, hasBoundRoomId := c.GetQuery("boundRoomId"); hasBoundRoomId {
 		boundRoomId, err = strconv.Atoi(boundRoomIdStr)
 		if err != nil {
@@ -58,27 +68,28 @@ func Serve(c *gin.Context) {
 			c.AbortWithStatus(http.StatusBadRequest)
 			return
 		}
-		Logger.Info("Finding PlayerLogin record for ws authentication:", zap.Any("intAuthToken", token), zap.Any("boundRoomId", boundRoomId))
-	}
-	if expectRoomIdStr, hasExpectRoomId := c.GetQuery("expectedRoomId"); hasExpectRoomId {
-		expectRoomId, err = strconv.Atoi(expectRoomIdStr)
+		Logger.Debug("Finding PlayerLogin record for ws authentication:", zap.Any("intAuthToken", token), zap.Any("boundRoomId", boundRoomId))
+	} else if expectedRoomIdStr, hasExpectRoomId := c.GetQuery("expectedRoomId"); hasExpectRoomId {
+		expectedRoomId, err = strconv.Atoi(expectedRoomIdStr)
 		if err != nil {
 			c.AbortWithStatus(http.StatusBadRequest)
 			return
 		}
-		Logger.Info("Finding PlayerLogin record for ws authentication:", zap.Any("intAuthToken", token), zap.Any("expectedRoomId", expectRoomId))
+		Logger.Debug("Finding PlayerLogin record for ws authentication:", zap.Any("intAuthToken", token), zap.Any("expectedRoomId", expectedRoomId))
+	} else {
+		Logger.Debug("Finding PlayerLogin record for ws authentication:", zap.Any("intAuthToken", token))
 	}
 
 	// 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.Info("PlayerLogin record not found for ws authentication:", zap.Any("intAuthToken", token))
+		Logger.Warn("PlayerLogin record not found for ws authentication:", zap.Any("intAuthToken", token))
 		c.AbortWithStatus(http.StatusBadRequest)
 		return
 	}
 
-	Logger.Info("PlayerLogin record has been found for ws authentication:", zap.Any("playerId", playerId))
+	Logger.Info("PlayerLogin record has been found for ws authentication:", zap.Any("playerId", playerId), zap.Any("intAuthToken", token), zap.Any("boundRoomId", boundRoomId), zap.Any("expectedRoomId", expectedRoomId))
 
 	conn, err := upgrader.Upgrade(c.Writer, c.Request, nil)
 	if err != nil {
@@ -160,14 +171,14 @@ func Serve(c *gin.Context) {
 		signalToCloseConnOfThisPlayer(Constants.RetCode.PlayerNotFound, "")
 	}
 
-	Logger.Info("Player has logged in and its profile is found from persistent storage:", zap.Any("playerId", playerId), zap.Any("play", pPlayer))
+	Logger.Debug("Player has logged in and its profile is found from persistent storage:", zap.Any("playerId", playerId), zap.Any("player", pPlayer))
 
 	// Find a room to join.
-	Logger.Info("About to acquire RoomHeapMux for player:", zap.Any("playerId", playerId))
+	Logger.Debug("About to acquire RoomHeapMux for player:", zap.Any("playerId", playerId))
 	(*(models.RoomHeapMux)).Lock()
 	defer func() {
 		(*(models.RoomHeapMux)).Unlock()
-		Logger.Info("Released RoomHeapMux for player:", zap.Any("playerId", playerId))
+		Logger.Debug("Released RoomHeapMux for player:", zap.Any("playerId", playerId))
 	}()
 	defer func() {
 		if r := recover(); r != nil {
@@ -175,40 +186,35 @@ func Serve(c *gin.Context) {
 			signalToCloseConnOfThisPlayer(Constants.RetCode.UnknownError, "")
 		}
 	}()
-	Logger.Info("Acquired RoomHeapMux for player:", zap.Any("playerId", playerId))
+	Logger.Debug("Acquired RoomHeapMux for player:", zap.Any("playerId", playerId))
 	// Logger.Info("The RoomHeapManagerIns has:", zap.Any("addr", fmt.Sprintf("%p", models.RoomHeapManagerIns)), zap.Any("size", len(*(models.RoomHeapManagerIns))))
-	playerSuccessfullyAddedToRoom := false
+	playerRoomRelation := Constants.RetCode.UnknownError
 	if 0 < boundRoomId {
 		if tmpPRoom, existent := (*models.RoomMapManagerIns)[int32(boundRoomId)]; existent {
 			pRoom = tmpPRoom
-			Logger.Info("Successfully got:\n", zap.Any("roomId", pRoom.Id), zap.Any("playerId", playerId), zap.Any("forBoundRoomId", boundRoomId))
-			res := pRoom.ReAddPlayerIfPossible(pPlayer, conn, signalToCloseConnOfThisPlayer)
-			if !res {
+			playerRoomRelation = pRoom.ReAddPlayerIfPossible(pPlayer, conn, signalToCloseConnOfThisPlayer)
+			if Constants.RetCode.Ok != playerRoomRelation {
 				Logger.Warn("Failed to get:\n", zap.Any("roomId", pRoom.Id), zap.Any("playerId", playerId), zap.Any("forBoundRoomId", boundRoomId))
-			} else {
-				playerSuccessfullyAddedToRoom = true
 			}
 		}
-	}
-
-	if 0 < expectRoomId {
-		if tmpRoom, existent := (*models.RoomMapManagerIns)[int32(expectRoomId)]; existent {
+	} else if 0 < expectedRoomId {
+		if tmpRoom, existent := (*models.RoomMapManagerIns)[int32(expectedRoomId)]; existent {
 			pRoom = tmpRoom
-			Logger.Info("Successfully got:\n", zap.Any("roomId", pRoom.Id), zap.Any("playerId", playerId), zap.Any("forExpectedRoomId", expectRoomId))
-
-			if pRoom.ReAddPlayerIfPossible(pPlayer, conn, signalToCloseConnOfThisPlayer) {
-				playerSuccessfullyAddedToRoom = true
-			} else if pRoom.AddPlayerIfPossible(pPlayer, conn, signalToCloseConnOfThisPlayer) {
-				playerSuccessfullyAddedToRoom = true
-			} else {
-				Logger.Warn("Failed to get:\n", zap.Any("roomId", pRoom.Id), zap.Any("playerId", playerId), zap.Any("forExpectedRoomId", expectRoomId))
-				playerSuccessfullyAddedToRoom = false
+			playerRoomRelation = pRoom.ReAddPlayerIfPossible(pPlayer, conn, signalToCloseConnOfThisPlayer)
+			if Constants.RetCode.Ok != playerRoomRelation {
+				playerRoomRelation = pRoom.AddPlayerIfPossible(pPlayer, speciesId, conn, signalToCloseConnOfThisPlayer)
+			}
+			if Constants.RetCode.Ok != playerRoomRelation {
+				Logger.Warn("Failed to get:\n", zap.Any("roomId", pRoom.Id), zap.Any("playerId", playerId), zap.Any("forExpectedRoomId", expectedRoomId))
 			}
-
 		}
 	}
 
-	if false == playerSuccessfullyAddedToRoom {
+	if Constants.RetCode.SamePlayerAlreadyInSameRoom == playerRoomRelation {
+		signalToCloseConnOfThisPlayer(playerRoomRelation, fmt.Sprintf("playerId == %v is already in a room, this account is possibly stolen!", playerId))
+	}
+
+	if Constants.RetCode.Ok != playerRoomRelation {
 		defer func() {
 			if pRoom != nil {
 				heap.Push(models.RoomHeapManagerIns, pRoom)
@@ -221,10 +227,10 @@ func Serve(c *gin.Context) {
 			signalToCloseConnOfThisPlayer(Constants.RetCode.LocallyNoAvailableRoom, fmt.Sprintf("Cannot pop a (*Room) for playerId == %v!", playerId))
 		} else {
 			pRoom = tmpRoom
-			Logger.Info("Successfully popped:\n", zap.Any("roomId", pRoom.Id), zap.Any("playerId", playerId))
-			res := pRoom.AddPlayerIfPossible(pPlayer, conn, signalToCloseConnOfThisPlayer)
-			if !res {
-				signalToCloseConnOfThisPlayer(Constants.RetCode.PlayerNotAddableToRoom, fmt.Sprintf("AddPlayerIfPossible returns false for roomId == %v, playerId == %v!", pRoom.Id, playerId))
+			Logger.Info("Successfully popped:\n", zap.Any("roomId", pRoom.Id), zap.Any("forPlayerId", playerId))
+			playerRoomRelation = pRoom.AddPlayerIfPossible(pPlayer, speciesId, conn, signalToCloseConnOfThisPlayer)
+			if Constants.RetCode.Ok != playerRoomRelation {
+				signalToCloseConnOfThisPlayer(playerRoomRelation, fmt.Sprintf("AddPlayerIfPossible returns false for roomId == %v, playerId == %v!", pRoom.Id, playerId))
 			}
 		}
 	}
@@ -245,41 +251,40 @@ func Serve(c *gin.Context) {
 
 		// Construct "battleColliderInfo" to downsync
 		bciFrame := &pb.BattleColliderInfo{
-			BoundRoomId:           pRoom.Id,
-			StageName:             pRoom.StageName,
-			StrToVec2DListMap:     pRoom.StrToVec2DListMap,
-			StrToPolygon2DListMap: pRoom.StrToPolygon2DListMap,
-			StageDiscreteW:        pRoom.StageDiscreteW,
-			StageDiscreteH:        pRoom.StageDiscreteH,
-			StageTileW:            pRoom.StageTileW,
-			StageTileH:            pRoom.StageTileH,
+			BoundRoomId: pRoom.Id,
+			StageName:   pRoom.StageName,
+
+			IntervalToPing:        int32(Constants.Ws.IntervalToPing),
+			WillKickIfInactiveFor: int32(Constants.Ws.WillKickIfInactiveFor),
+			BattleDurationNanos:   pRoom.BattleDurationNanos,
 
-			IntervalToPing:                  int32(Constants.Ws.IntervalToPing),
-			WillKickIfInactiveFor:           int32(Constants.Ws.WillKickIfInactiveFor),
-			BattleDurationNanos:             pRoom.BattleDurationNanos,
-			ServerFps:                       pRoom.ServerFps,
-			InputDelayFrames:                pRoom.InputDelayFrames,
-			InputScaleFrames:                pRoom.InputScaleFrames,
-			NstDelayFrames:                  pRoom.NstDelayFrames,
 			InputFrameUpsyncDelayTolerance:  pRoom.InputFrameUpsyncDelayTolerance,
 			MaxChasingRenderFramesPerUpdate: pRoom.MaxChasingRenderFramesPerUpdate,
-			PlayerBattleState:               pThePlayer.BattleState, // For frontend to know whether it's rejoining
 			RollbackEstimatedDtMillis:       pRoom.RollbackEstimatedDtMillis,
 			RollbackEstimatedDtNanos:        pRoom.RollbackEstimatedDtNanos,
 
-			WorldToVirtualGridRatio: pRoom.WorldToVirtualGridRatio,
-			VirtualGridToWorldRatio: pRoom.VirtualGridToWorldRatio,
+			SpaceOffsetX: pRoom.SpaceOffsetX,
+			SpaceOffsetY: pRoom.SpaceOffsetY,
 
-			SpAtkLookupFrames: pRoom.SpAtkLookupFrames,
 			RenderCacheSize:   pRoom.RenderCacheSize,
-			MeleeSkillConfig:  pRoom.MeleeSkillConfig,
+			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))
@@ -361,7 +366,7 @@ func Serve(c *gin.Context) {
 	receivingLoopAgainstPlayer := func() error {
 		defer func() {
 			if r := recover(); r != nil {
-				Logger.Error("Goroutine `receivingLoopAgainstPlayer`, recovery spot#1, recovered from: ", zap.Any("panic", r), zap.Any("callstack", debug.Stack()))
+				Logger.Error("Goroutine `receivingLoopAgainstPlayer`, recovery spot#1, recovered from: ", zap.Any("panic", r))
 			}
 			Logger.Info("Goroutine `receivingLoopAgainstPlayer` is stopped for:", zap.Any("playerId", playerId), zap.Any("roomId", pRoom.Id))
 		}()
@@ -370,10 +375,10 @@ func Serve(c *gin.Context) {
 				return nil
 			}
 
-			// Tries to receive from client-side in a non-blocking manner.
+			// TODO: Is there any potential edge-trigger improvement like the epoll approach mentioned above for the following statement? See discussion in https://github.com/gorilla/websocket/issues/122
 			_, bytes, err := conn.ReadMessage()
 			if nil != err {
-				Logger.Error("About to `signalToCloseConnOfThisPlayer`", zap.Any("roomId", pRoom.Id), zap.Any("playerId", playerId), zap.Error(err))
+				Logger.Error("About to `signalToCloseConnOfThisPlayer` due to conn.ReadMessage err", zap.Any("roomId", pRoom.Id), zap.Any("playerId", playerId), zap.Error(err))
 				signalToCloseConnOfThisPlayer(Constants.RetCode.UnknownError, "")
 				return nil
 			}
@@ -392,7 +397,7 @@ 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 {
@@ -409,3 +414,118 @@ func Serve(c *gin.Context) {
 	startOrFeedHeartbeatWatchdog(conn)
 	go receivingLoopAgainstPlayer()
 }
+
+func HandleSecondaryWsSessionForPlayer(c *gin.Context) {
+	token, ok := c.GetQuery("intAuthToken")
+	if !ok {
+		Logger.Warn("Secondary ws session req must have intAuthToken param!")
+		c.AbortWithStatus(http.StatusBadRequest)
+		return
+	}
+
+	boundRoomId := 0
+	var err error = nil
+	if boundRoomIdStr, hasBoundRoomId := c.GetQuery("boundRoomId"); hasBoundRoomId {
+		boundRoomId, err = strconv.Atoi(boundRoomIdStr)
+		if err != nil {
+			c.AbortWithStatus(http.StatusBadRequest)
+			return
+		}
+	} else {
+		Logger.Warn("Secondary ws session req must have boundRoomId param:", zap.Any("intAuthToken", token))
+		c.AbortWithStatus(http.StatusBadRequest)
+		return
+	}
+
+	var pRoom *models.Room = nil
+	// Deliberately querying playerId after querying room, because the former is against persistent storage and could be slow!
+	if tmpPRoom, existent := (*models.RoomMapManagerIns)[int32(boundRoomId)]; !existent {
+		Logger.Warn("Secondary ws session failed to get:\n", zap.Any("intAuthToken", token), zap.Any("forBoundRoomId", boundRoomId))
+		c.AbortWithStatus(http.StatusBadRequest)
+	} else {
+		pRoom = tmpPRoom
+	}
+
+	// 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("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:", zap.Any("playerId", playerId), zap.Any("intAuthToken", token), zap.Any("boundRoomId", boundRoomId))
+
+	conn, err := upgrader.Upgrade(c.Writer, c.Request, nil)
+	if err != nil {
+		Logger.Error("Secondary ws session upgrade:", zap.Error(err), zap.Any("playerId", playerId))
+		c.AbortWithStatus(http.StatusBadRequest)
+		return
+	}
+
+	connHasBeenSignaledToClose := int32(0)
+	pConnHasBeenSignaledToClose := &connHasBeenSignaledToClose
+
+	signalToCloseConnOfThisPlayer := func(customRetCode int, customRetMsg string) {
+		if swapped := atomic.CompareAndSwapInt32(pConnHasBeenSignaledToClose, 0, 1); !swapped {
+			return
+		}
+		Logger.Warn("Secondary ws session signalToCloseConnOfThisPlayer:", zap.Any("playerId", playerId), zap.Any("customRetCode", customRetCode), zap.Any("customRetMsg", customRetMsg))
+		defer func() {
+			if r := recover(); r != nil {
+				Logger.Error("Secondary ws session recovered from: ", zap.Any("panic", r))
+			}
+		}()
+
+		closeMessage := websocket.FormatCloseMessage(customRetCode, customRetMsg)
+		err := conn.WriteControl(websocket.CloseMessage, closeMessage, time.Now().Add(time.Millisecond*(ConstVals.Ws.WillKickIfInactiveFor)))
+		if err != nil {
+			Logger.Error("Secondary ws session unable to send the CloseFrame control message to player(client-side):", zap.Any("playerId", playerId), zap.Error(err))
+		}
+
+		time.AfterFunc(3*time.Second, func() {
+			// To actually terminates the underlying TCP connection which might be in `CLOSE_WAIT` state if inspected by `netstat`.
+			conn.Close()
+		})
+	}
+
+	onReceivedCloseMessageFromClient := func(code int, text string) error {
+		Logger.Warn("Secondary ws session triggered `onReceivedCloseMessageFromClient`:", zap.Any("code", code), zap.Any("playerId", playerId), zap.Any("message", text))
+		signalToCloseConnOfThisPlayer(code, text)
+		return nil
+	}
+
+	conn.SetCloseHandler(onReceivedCloseMessageFromClient)
+
+	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)
+}

charts/README.md

@@ -7,3 +7,22 @@ ffmpeg -i input.mp4 -filter:v "setpts=0.5*PTS" output.mp4
 ```
 ffmpeg -ss 12 -t 13 -i input.mp4 -vf "fps=10,scale=480:-1" -loop 0 output.gif
 ```
+
+# Extract GIF (with alpha channel, e.g. exported from Fighter Factory Studio) to PNG sequence
+```
+ffmpeg -vsync vfr -i input.gif output%d.png
+```
+
+The `-vsync vfr` tells ffmpeg to disrespect the original delays set within the GIF file, otherwise many duplicate frame will be extracted by the default 60FPS.
+
+More complicated transparent padding example (used when alignment in image source is much more preferred than aligning in codes) 
+```
+ffmpeg -vsync vfr -i LayDown1.gif -vf "scale=iw:188:force_original_aspect_ratio=decrease,pad=iw:188:0:(oh-ih):color=#00000000,format=rgba" pngs/LayDown1_%d.png
+```
+
+The command above uses same input-output width, but pads the output height with a top transparent section such that the output height is fixed to 188px. 
+
+Similarly to crop a gif into pngs.
+```
+ffmpeg -vsync vfr -i Idle1.gif -vf "crop=70:ih:(iw-ow-10):0" pngs/Idle1_%d.png
+```

collider_visualizer/Makefile

@@ -2,10 +2,11 @@ PROJECTNAME=viscol.exe
 ROOT_DIR=.
 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://mirrors.aliyun.com/goproxy 
+GOPROXY=https://goproxy.io
 
 build:
-	go build -o $(ROOT_DIR)/$(PROJECTNAME)
+	GOPROXY=$(GOPROXY) go build -o $(ROOT_DIR)/$(PROJECTNAME)
 
 run: build
 	./$(PROJECTNAME)

collider_visualizer/README.md

@@ -0,0 +1 @@
+This module is no longer useful, as we can now use GopherJs+OfflineMap to visualize experimental game dynamics.

collider_visualizer/common.go

@@ -2,8 +2,8 @@ package main
 
 import (
 	"github.com/hajimehoshi/ebiten/v2"
-	"github.com/solarlune/resolv"
 	"image/color"
+	"resolv"
 )
 
 var (

collider_visualizer/go.mod

@@ -1,30 +1,44 @@
 module viscol
 
-go 1.19
+go 1.18
 
 require (
+    jsexport v0.0.0
 	dnmshared v0.0.0
-	battle_srv v0.0.0
+    resolv v0.0.0
 	github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0
 	github.com/hajimehoshi/ebiten/v2 v2.4.7
-	github.com/solarlune/resolv v0.5.1
 	golang.org/x/image v0.0.0-20220902085622-e7cb96979f69
 )
 
 require (
 	github.com/ebitengine/purego v0.0.0-20220905075623-aeed57cda744 // indirect
+	github.com/fsnotify/fsnotify v1.5.1 // indirect
 	github.com/go-gl/glfw/v3.3/glfw v0.0.0-20220806181222-55e207c401ad // indirect
 	github.com/hajimehoshi/file2byteslice v0.0.0-20210813153925-5340248a8f41 // indirect
+	github.com/inconshreveable/mousetrap v1.0.0 // indirect
 	github.com/jezek/xgb v1.0.1 // indirect
-	github.com/kvartborg/vector v0.0.0-20200419093813-2cba0cabb4f0 // indirect
+	github.com/neelance/astrewrite v0.0.0-20160511093645-99348263ae86 // indirect
+	github.com/neelance/sourcemap v0.0.0-20200213170602-2833bce08e4c // indirect
+	github.com/shurcooL/httpfs v0.0.0-20190707220628-8d4bc4ba7749 // indirect
+	github.com/sirupsen/logrus v1.8.1 // indirect
+	github.com/spf13/cobra v1.2.1 // indirect
+	github.com/spf13/pflag v1.0.5 // indirect
 	go.uber.org/atomic v1.7.0 // indirect
 	go.uber.org/multierr v1.6.0 // indirect
 	go.uber.org/zap v1.23.0 // indirect
-	golang.org/x/exp v0.0.0-20190731235908-ec7cb31e5a56 // indirect
+	golang.org/x/crypto v0.0.0-20220411220226-7b82a4e95df4 // indirect
+	golang.org/x/exp v0.0.0-20200224162631-6cc2880d07d6 // indirect
 	golang.org/x/mobile v0.0.0-20220722155234-aaac322e2105 // indirect
+	golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4 // indirect
 	golang.org/x/sys v0.0.0-20220818161305-2296e01440c6 // indirect
+	golang.org/x/term v0.0.0-20220411215600-e5f449aeb171 // indirect
+	golang.org/x/tools v0.1.12 // indirect
 	google.golang.org/protobuf v1.28.1 // indirect
 )
 
-replace dnmshared => ../dnmshared
-replace battle_srv => ../battle_srv
+replace (
+    dnmshared => ../dnmshared
+    jsexport => ../jsexport
+    resolv => ../resolv_tailored
+)

collider_visualizer/go.sum

@@ -1,14 +1,153 @@
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+cloud.google.com/go v0.44.1/go.mod h1:iSa0KzasP4Uvy3f1mN/7PiObzGgflwredwwASm/v6AU=
+cloud.google.com/go v0.44.2/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY=
+cloud.google.com/go v0.45.1/go.mod h1:RpBamKRgapWJb87xiFSdk4g1CME7QZg3uwTez+TSTjc=
+cloud.google.com/go v0.46.3/go.mod h1:a6bKKbmY7er1mI7TEI4lsAkts/mkhTSZK8w33B4RAg0=
+cloud.google.com/go v0.50.0/go.mod h1:r9sluTvynVuxRIOHXQEHMFffphuXHOMZMycpNR5e6To=
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collider_visualizer/main.go

@@ -11,13 +11,13 @@ import (
 	"github.com/hajimehoshi/ebiten/v2"
 	"github.com/hajimehoshi/ebiten/v2/ebitenutil"
 	"github.com/hajimehoshi/ebiten/v2/text"
-	"github.com/solarlune/resolv"
 	"golang.org/x/image/font"
 
 	"encoding/xml"
 	"io/ioutil"
 	"os"
 	"path/filepath"
+	"resolv"
 
 	. "dnmshared"
 )

collider_visualizer/worldColliderDisplay.go

@@ -1,14 +1,13 @@
 package main
 
 import (
-	. "battle_srv/protos"
 	. "dnmshared"
-	. "dnmshared/sharedprotos"
 	"fmt"
 	"github.com/hajimehoshi/ebiten/v2"
-	"github.com/solarlune/resolv"
 	"go.uber.org/zap"
 	"image/color"
+	. "jsexport/battle"
+	"resolv"
 )
 
 type WorldColliderDisplay struct {
@@ -34,54 +33,60 @@ func NewWorldColliderDisplay(game *Game, stageDiscreteW, stageDiscreteH, stageTi
 	spaceOffsetX := float64(spaceW) * 0.5
 	spaceOffsetY := float64(spaceH) * 0.5
 
-	virtualGridToWorldRatio := 0.1
-	playerDefaultSpeed := 20
-	minStep := (int(float64(playerDefaultSpeed)*virtualGridToWorldRatio) << 2)
-	playerColliderRadius := float64(24)
-	playerColliders := make([]*resolv.Object, len(playerPosList.Eles))
+	worldToVirtualGridRatio := float64(1000)
+	virtualGridToWorldRatio := float64(1) / worldToVirtualGridRatio
+	playerDefaultSpeed := 1 * worldToVirtualGridRatio
+	minStep := (int(float64(playerDefaultSpeed)*virtualGridToWorldRatio) << 3)
+	playerColliderRadius := float64(12)
+	playerColliders := make([]*resolv.Object, len(playerPosList))
+	snapIntoPlatformOverlap := float64(0.1)
 	space := resolv.NewSpace(int(spaceW), int(spaceH), minStep, minStep)
-	for i, playerPos := range playerPosList.Eles {
-		playerCollider := GenerateRectCollider(playerPos.X, playerPos.Y, playerColliderRadius*2, playerColliderRadius*2, spaceOffsetX, spaceOffsetY, "Player") // [WARNING] Deliberately not using a circle because "resolv v0.5.1" doesn't yet align circle center with space cell center, regardless of the "specified within-object offset"
-		Logger.Info(fmt.Sprintf("Player Collider#%d: player world pos =(%.2f, %.2f), shape=%v", i, playerPos.X, playerPos.Y, ConvexPolygonStr(playerCollider.Shape.(*resolv.ConvexPolygon))))
+	topPadding, bottomPadding, leftPadding, rightPadding := snapIntoPlatformOverlap, snapIntoPlatformOverlap, snapIntoPlatformOverlap, snapIntoPlatformOverlap
+	for i, playerPos := range playerPosList {
+		colliderWidth, colliderHeight := playerColliderRadius*2, playerColliderRadius*4
+		playerCollider := GenerateRectCollider(playerPos.X, playerPos.Y, colliderWidth, colliderHeight, topPadding, bottomPadding, leftPadding, rightPadding, spaceOffsetX, spaceOffsetY, nil, fmt.Sprintf("Player%d", i+1)) // [WARNING] Deliberately not using a circle because "resolv v0.5.1" doesn't yet align circle center with space cell center, regardless of the "specified within-object offset"
+		Logger.Info(fmt.Sprintf("Player Collider#%d: player world pos=(%.2f, %.2f), shape=%v", i, playerPos.X, playerPos.Y, ConvexPolygonStr(playerCollider.Shape.(*resolv.ConvexPolygon))))
 		playerColliders[i] = playerCollider
 		space.Add(playerCollider)
 	}
 
 	barrierLocalId := 0
-	for _, barrierUnaligned := range barrierList.Eles {
-		barrierCollider := GenerateConvexPolygonCollider(barrierUnaligned, spaceOffsetX, spaceOffsetY, "Barrier")
-		Logger.Info(fmt.Sprintf("Added barrier: shape=%v", ConvexPolygonStr(barrierCollider.Shape.(*resolv.ConvexPolygon))))
+	for _, barrierUnaligned := range barrierList {
+		barrierCollider := GenerateConvexPolygonCollider(barrierUnaligned, spaceOffsetX, spaceOffsetY, nil, "Barrier")
+		Logger.Debug(fmt.Sprintf("Added barrier: shape=%v", ConvexPolygonStr(barrierCollider.Shape.(*resolv.ConvexPolygon))))
 		space.Add(barrierCollider)
 		barrierLocalId++
 	}
 
 	world.Space = space
 
-	moveToCollide := false
+	moveToCollide := true
 	if moveToCollide {
-		newVx, newVy := int32(-2959), int32(-2261)
 		effPushback := Vec2D{X: float64(0), Y: float64(0)}
-		toTestPlayerCollider := playerColliders[0]
-		toTestPlayerCollider.X, toTestPlayerCollider.Y = VirtualGridToPolygonColliderAnchorPos(newVx, newVy, playerColliderRadius, playerColliderRadius, spaceOffsetX, spaceOffsetY, virtualGridToWorldRatio)
+		colliderWidth, colliderHeight := playerColliderRadius*2, playerColliderRadius*4
+		playerColliders[0].X, playerColliders[0].Y = VirtualGridToPolygonColliderBLPos(int32(-139000), int32(-474500), colliderWidth, colliderHeight, topPadding, bottomPadding, leftPadding, rightPadding, spaceOffsetX, spaceOffsetY, virtualGridToWorldRatio)
+		playerColliders[0].Update()
 
-		Logger.Info(fmt.Sprintf("Checking collision for virtual (%d, %d), now playerShape=%v", newVx, newVy, ConvexPolygonStr(toTestPlayerCollider.Shape.(*resolv.ConvexPolygon))))
+		playerColliders[1].X, playerColliders[1].Y = VirtualGridToPolygonColliderBLPos(int32(-163000), int32(-520000), colliderWidth, colliderHeight, topPadding, bottomPadding, leftPadding, rightPadding, spaceOffsetX, spaceOffsetY, virtualGridToWorldRatio)
+		playerColliders[1].Update()
 
-		toTestPlayerCollider.Update()
+		toTestPlayerCollider := playerColliders[1]
 		if collision := toTestPlayerCollider.Check(0, 0); collision != nil {
 			playerShape := toTestPlayerCollider.Shape.(*resolv.ConvexPolygon)
 			for _, obj := range collision.Objects {
-				barrierShape := obj.Shape.(*resolv.ConvexPolygon)
-				if overlapped, pushbackX, pushbackY, overlapResult := CalcPushbacks(0, 0, playerShape, barrierShape); overlapped {
-					Logger.Warn(fmt.Sprintf("Overlapped: a=%v, b=%v, pushbackX=%v, pushbackY=%v", ConvexPolygonStr(playerShape), ConvexPolygonStr(barrierShape), pushbackX, pushbackY))
+				bShape := obj.Shape.(*resolv.ConvexPolygon)
+				Logger.Warn(fmt.Sprintf("Checking potential: a=%v, b=%v", ConvexPolygonStr(playerShape), ConvexPolygonStr(bShape)))
+				if overlapped, pushbackX, pushbackY, overlapResult := CalcPushbacks(0, 0, playerShape, bShape); overlapped {
+					Logger.Warn(fmt.Sprintf("Overlapped: a=%v, b=%v, pushbackX=%v, pushbackY=%v", ConvexPolygonStr(playerShape), ConvexPolygonStr(bShape), pushbackX, pushbackY))
 					effPushback.X += pushbackX
 					effPushback.Y += pushbackY
 				} else {
-					Logger.Warn(fmt.Sprintf("Collided BUT not overlapped: a=%v, b=%v, overlapResult=%v", ConvexPolygonStr(playerShape), ConvexPolygonStr(barrierShape), overlapResult))
+					Logger.Warn(fmt.Sprintf("Collided BUT not overlapped: a=%v, b=%v, overlapResult=%v", ConvexPolygonStr(playerShape), ConvexPolygonStr(bShape), overlapResult))
 				}
 			}
-			toTestPlayerCollider.X -= effPushback.X
-			toTestPlayerCollider.Y -= effPushback.Y
-			toTestPlayerCollider.Update()
+			//toTestPlayerCollider.X -= effPushback.X
+			//toTestPlayerCollider.Y -= effPushback.Y
+			//toTestPlayerCollider.Update()
 			Logger.Info(fmt.Sprintf("effPushback={%v, %v}", effPushback.X, effPushback.Y))
 		}
 	}
@@ -92,15 +97,11 @@ func NewWorldColliderDisplay(game *Game, stageDiscreteW, stageDiscreteH, stageTi
 		RecoveryFrames:        int32(61),
 		RecoveryFramesOnBlock: int32(61),
 		RecoveryFramesOnHit:   int32(61),
-		Moveforward: &Vec2D{
-			X: 0,
-			Y: 0,
-		},
-		HitboxOffset: float64(24.0),
-		HitboxSize: &Vec2D{
-			X: float64(45.0),
-			Y: float64(32.0),
-		},
+		SelfMoveforwardX:      0,
+		SelfMoveforwardY:      0,
+		HitboxOffset:          float64(24.0),
+		HitboxSizeX:           float64(45.0),
+		HitboxSizeY:           float64(32.0),
 
 		// for defender
 		HitStunFrames:      int32(18),
@@ -109,13 +110,12 @@ func NewWorldColliderDisplay(game *Game, stageDiscreteW, stageDiscreteH, stageTi
 		ReleaseTriggerType: int32(1), // 1: rising-edge, 2: falling-edge
 		Damage:             int32(5),
 	}
-	bulletLeftToRight := true
+	bulletLeftToRight := false
 	if bulletLeftToRight {
 		xfac := float64(1.0)
-		offenderWx, offenderWy := playerPosList.Eles[0].X, playerPosList.Eles[0].Y
+		offenderWx, offenderWy := playerPosList[0].X, playerPosList[0].Y
 		bulletWx, bulletWy := offenderWx+xfac*meleeBullet.HitboxOffset, offenderWy
-
-		newBulletCollider := GenerateRectCollider(bulletWx, bulletWy, meleeBullet.HitboxSize.X, meleeBullet.HitboxSize.Y, spaceOffsetX, spaceOffsetY, "MeleeBullet")
+		newBulletCollider := GenerateRectCollider(bulletWx, bulletWy, meleeBullet.HitboxSizeX, meleeBullet.HitboxSizeY, topPadding, bottomPadding, leftPadding, rightPadding, spaceOffsetX, spaceOffsetY, nil, "MeleeBullet")
 		space.Add(newBulletCollider)
 		bulletShape := newBulletCollider.Shape.(*resolv.ConvexPolygon)
 		Logger.Warn(fmt.Sprintf("bullet ->: Added bullet collider to space: a=%v", ConvexPolygonStr(bulletShape)))
@@ -132,13 +132,13 @@ func NewWorldColliderDisplay(game *Game, stageDiscreteW, stageDiscreteH, stageTi
 		}
 	}
 
-	bulletRightToLeft := true
+	bulletRightToLeft := false
 	if bulletRightToLeft {
 		xfac := float64(-1.0)
-		offenderWx, offenderWy := playerPosList.Eles[1].X, playerPosList.Eles[1].Y
+		offenderWx, offenderWy := playerPosList[1].X, playerPosList[1].Y
 		bulletWx, bulletWy := offenderWx+xfac*meleeBullet.HitboxOffset, offenderWy
 
-		newBulletCollider := GenerateRectCollider(bulletWx, bulletWy, meleeBullet.HitboxSize.X, meleeBullet.HitboxSize.Y, spaceOffsetX, spaceOffsetY, "MeleeBullet")
+		newBulletCollider := GenerateRectCollider(bulletWx, bulletWy, meleeBullet.HitboxSizeX, meleeBullet.HitboxSizeY, topPadding, bottomPadding, leftPadding, rightPadding, spaceOffsetX, spaceOffsetY, nil, "MeleeBullet")
 		space.Add(newBulletCollider)
 		bulletShape := newBulletCollider.Shape.(*resolv.ConvexPolygon)
 		Logger.Warn(fmt.Sprintf("bullet <-: Added bullet collider to space: a=%v", ConvexPolygonStr(bulletShape)))
@@ -165,11 +165,14 @@ func (world *WorldColliderDisplay) Update() {
 func (world *WorldColliderDisplay) Draw(screen *ebiten.Image) {
 
 	for _, o := range world.Space.Objects() {
-		if o.HasTags("Player") {
-			drawColor := color.RGBA{0, 255, 0, 255}
+		if o.HasTags("Player1") {
+			drawColor := color.RGBA{255, 0, 0, 255}
+			DrawPolygon(screen, o.Shape.(*resolv.ConvexPolygon), drawColor)
+		} else if o.HasTags("Player2") {
+			drawColor := color.RGBA{0, 0, 255, 255}
 			DrawPolygon(screen, o.Shape.(*resolv.ConvexPolygon), drawColor)
 		} else if o.HasTags("MeleeBullet") {
-			drawColor := color.RGBA{0, 0, 255, 255}
+			drawColor := color.RGBA{78, 255, 112, 255}
 			DrawPolygon(screen, o.Shape.(*resolv.ConvexPolygon), drawColor)
 		} else {
 			drawColor := color.RGBA{60, 60, 60, 255}
@@ -177,7 +180,7 @@ func (world *WorldColliderDisplay) Draw(screen *ebiten.Image) {
 		}
 	}
 
-	world.Game.DebugDraw(screen, world.Space)
+	//world.Game.DebugDraw(screen, world.Space)
 
 	if world.Game.ShowHelpText {
 

dnmshared/geometry.go

@@ -1,50 +0,0 @@
-package dnmshared
-
-import (
-	. "dnmshared/sharedprotos"
-	"math"
-)
-
-func NormVec2D(dx, dy float64) Vec2D {
-	return Vec2D{X: dy, Y: -dx}
-}
-
-func AlignPolygon2DToBoundingBox(input *Polygon2D) *Polygon2D {
-	// Transform again to put "anchor" at the top-left point of the bounding box for "resolv"
-	boundingBoxTL := &Vec2D{
-		X: math.MaxFloat64,
-		Y: math.MaxFloat64,
-	}
-	for _, p := range input.Points {
-		if p.X < boundingBoxTL.X {
-			boundingBoxTL.X = p.X
-		}
-		if p.Y < boundingBoxTL.Y {
-			boundingBoxTL.Y = p.Y
-		}
-	}
-
-	// Now "input.Anchor" should move to "input.Anchor+boundingBoxTL", thus "boundingBoxTL" is also the value of the negative diff for all "input.Points"
-	output := &Polygon2D{
-		Anchor: &Vec2D{
-			X: input.Anchor.X + boundingBoxTL.X,
-			Y: input.Anchor.Y + boundingBoxTL.Y,
-		},
-		Points: make([]*Vec2D, len(input.Points)),
-	}
-
-	for i, p := range input.Points {
-		output.Points[i] = &Vec2D{
-			X: p.X - boundingBoxTL.X,
-			Y: p.Y - boundingBoxTL.Y,
-		}
-	}
-
-	return output
-}
-
-func Distance(pt1 *Vec2D, pt2 *Vec2D) float64 {
-	dx := pt1.X - pt2.X
-	dy := pt1.Y - pt2.Y
-	return math.Sqrt(dx*dx + dy*dy)
-}

dnmshared/go.mod

@@ -1,3 +1,13 @@
 module dnmshared 
 
-go 1.19
+go 1.18
+
+require (
+	resolv v0.0.0
+	jsexport v0.0.0
+)
+
+replace (
+	resolv => ../resolv_tailored
+	jsexport => ../jsexport
+)

dnmshared/resolv_helper.go

@@ -1,259 +1,26 @@
 package dnmshared
 
 import (
-	. "dnmshared/sharedprotos"
 	"fmt"
-	"github.com/kvartborg/vector"
-	"github.com/solarlune/resolv"
-	"math"
+	. "jsexport/battle"
+	"resolv"
 	"strings"
 )
 
+func NormVec2D(dx, dy float64) Vec2D {
+	return Vec2D{X: dy, Y: -dx}
+}
+
 func ConvexPolygonStr(body *resolv.ConvexPolygon) string {
-	var s []string = make([]string, len(body.Points))
-	for i, p := range body.Points {
+	var s []string = make([]string, body.Points.Cnt)
+	for i := int32(0); i < body.Points.Cnt; i++ {
+		p := body.GetPointByOffset(i)
 		s[i] = fmt.Sprintf("[%.2f, %.2f]", p[0]+body.X, p[1]+body.Y)
 	}
 
 	return fmt.Sprintf("{\n%s\n}", strings.Join(s, ",\n"))
 }
 
-func GenerateRectCollider(origX, origY, w, h, spaceOffsetX, spaceOffsetY float64, tag string) *resolv.Object {
-	cx, cy := WorldToPolygonColliderAnchorPos(origX, origY, w*0.5, h*0.5, spaceOffsetX, spaceOffsetY)
-    return GenerateRectColliderInCollisionSpace(cx, cy, w, h, tag) 
-}
-
-func GenerateRectColliderInCollisionSpace(cx, cy, w, h float64, tag string) *resolv.Object {
-	collider := resolv.NewObject(cx, cy, w, h, tag)
-	shape := resolv.NewRectangle(0, 0, w, h)
-	collider.SetShape(shape)
-	return collider
-}
-
-func GenerateConvexPolygonCollider(unalignedSrc *Polygon2D, spaceOffsetX, spaceOffsetY float64, tag string) *resolv.Object {
-	aligned := AlignPolygon2DToBoundingBox(unalignedSrc)
-	var w, h float64 = 0, 0
-
-	shape := resolv.NewConvexPolygon()
-	for i, pi := range aligned.Points {
-		for j, pj := range aligned.Points {
-			if i == j {
-				continue
-			}
-			if math.Abs(pj.X-pi.X) > w {
-				w = math.Abs(pj.X - pi.X)
-			}
-			if math.Abs(pj.Y-pi.Y) > h {
-				h = math.Abs(pj.Y - pi.Y)
-			}
-		}
-	}
-
-	for i := 0; i < len(aligned.Points); i++ {
-		p := aligned.Points[i]
-		shape.AddPoints(p.X, p.Y)
-	}
-
-	collider := resolv.NewObject(aligned.Anchor.X+spaceOffsetX, aligned.Anchor.Y+spaceOffsetY, w, h, tag)
-	collider.SetShape(shape)
-
-	return collider
-}
-
-func CalcPushbacks(oldDx, oldDy float64, playerShape, barrierShape *resolv.ConvexPolygon) (bool, float64, float64, *SatResult) {
-	origX, origY := playerShape.Position()
-	defer func() {
-		playerShape.SetPosition(origX, origY)
-	}()
-	playerShape.SetPosition(origX+oldDx, origY+oldDy)
-	overlapResult := &SatResult{
-		Overlap:       0,
-		OverlapX:      0,
-		OverlapY:      0,
-		AContainedInB: true,
-		BContainedInA: true,
-		Axis:          vector.Vector{0, 0},
-	}
-	if overlapped := IsPolygonPairOverlapped(playerShape, barrierShape, overlapResult); overlapped {
-		pushbackX, pushbackY := overlapResult.Overlap*overlapResult.OverlapX, overlapResult.Overlap*overlapResult.OverlapY
-		return true, pushbackX, pushbackY, overlapResult
-	} else {
-		return false, 0, 0, overlapResult
-	}
-}
-
-type SatResult struct {
-	Overlap       float64
-	OverlapX      float64
-	OverlapY      float64
-	AContainedInB bool
-	BContainedInA bool
-	Axis          vector.Vector
-}
-
-func IsPolygonPairOverlapped(a, b *resolv.ConvexPolygon, result *SatResult) bool {
-	aCnt, bCnt := len(a.Points), len(b.Points)
-	// Single point case
-	if 1 == aCnt && 1 == bCnt {
-		if nil != result {
-			result.Overlap = 0
-		}
-		return a.Points[0].X() == b.Points[0].X() && a.Points[0].Y() == b.Points[0].Y()
-	}
-
-	if 1 < aCnt {
-		for _, axis := range a.SATAxes() {
-			if isPolygonPairSeparatedByDir(a, b, axis.Unit(), result) {
-				return false
-			}
-		}
-	}
-
-	if 1 < bCnt {
-		for _, axis := range b.SATAxes() {
-			if isPolygonPairSeparatedByDir(a, b, axis.Unit(), result) {
-				return false
-			}
-		}
-	}
-
-	return true
-}
-
-func isPolygonPairSeparatedByDir(a, b *resolv.ConvexPolygon, e vector.Vector, result *SatResult) bool {
-	/*
-		[WARNING] This function is deliberately made private, it shouldn't be used alone (i.e. not along the norms of a polygon), otherwise the pushbacks calculated would be meaningless.
-
-		Consider the following example
-		a: {
-			anchor: [1337.19 1696.74]
-			points: [[0 0] [24 0] [24 24] [0 24]]
-		},
-		b: {
-			anchor: [1277.72 1570.56]
-			points: [[642.57 319.16] [0 319.16] [5.73 0] [643.75 0.90]]
-		}
-
-		e = (-2.98, 1.49).Unit()
-	*/
-
-	var aStart, aEnd, bStart, bEnd float64 = math.MaxFloat64, -math.MaxFloat64, math.MaxFloat64, -math.MaxFloat64
-	for _, p := range a.Points {
-		dot := (p.X()+a.X)*e.X() + (p.Y()+a.Y)*e.Y()
-
-		if aStart > dot {
-			aStart = dot
-		}
-
-		if aEnd < dot {
-			aEnd = dot
-		}
-	}
-
-	for _, p := range b.Points {
-		dot := (p.X()+b.X)*e.X() + (p.Y()+b.Y)*e.Y()
-
-		if bStart > dot {
-			bStart = dot
-		}
-
-		if bEnd < dot {
-			bEnd = dot
-		}
-	}
-
-	if aStart > bEnd || aEnd < bStart {
-		// Separated by unit vector "e"
-		return true
-	}
-
-	if nil != result {
-		result.Axis = e
-		overlap := float64(0)
-
-		if aStart < bStart {
-			result.AContainedInB = false
-
-			if aEnd < bEnd {
-				overlap = aEnd - bStart
-				result.BContainedInA = false
-			} else {
-				option1 := aEnd - bStart
-				option2 := bEnd - aStart
-				if option1 < option2 {
-					overlap = option1
-				} else {
-					overlap = -option2
-				}
-			}
-		} else {
-			result.BContainedInA = false
-
-			if aEnd > bEnd {
-				overlap = aStart - bEnd
-				result.AContainedInB = false
-			} else {
-				option1 := aEnd - bStart
-				option2 := bEnd - aStart
-				if option1 < option2 {
-					overlap = option1
-				} else {
-					overlap = -option2
-				}
-			}
-		}
-
-		currentOverlap := result.Overlap
-		absoluteOverlap := overlap
-		if overlap < 0 {
-			absoluteOverlap = -overlap
-		}
-
-		if 0 == currentOverlap || currentOverlap > absoluteOverlap {
-			var sign float64 = 1
-			if overlap < 0 {
-				sign = -1
-			}
-
-			result.Overlap = absoluteOverlap
-			result.OverlapX = e.X() * sign
-			result.OverlapY = e.Y() * sign
-		}
-	}
-
-	// the specified unit vector "e" doesn't separate "a" and "b", overlap result is generated
-	return false
-}
-
-func WorldToVirtualGridPos(wx, wy, worldToVirtualGridRatio float64) (int32, int32) {
-	// [WARNING] Introduces loss of precision!
-	// In JavaScript floating numbers suffer from seemingly non-deterministic arithmetics, and even if certain libs solved this issue by approaches such as fixed-point-number, they might not be used in other libs -- e.g. the "collision libs" we're interested in -- thus couldn't kill all pains.
-	var virtualGridX int32 = int32(math.Round(wx * worldToVirtualGridRatio))
-	var virtualGridY int32 = int32(math.Round(wy * worldToVirtualGridRatio))
-	return virtualGridX, virtualGridY
-}
-
-func VirtualGridToWorldPos(vx, vy int32, virtualGridToWorldRatio float64) (float64, float64) {
-	// No loss of precision
-	var wx float64 = float64(vx) * virtualGridToWorldRatio
-	var wy float64 = float64(vy) * virtualGridToWorldRatio
-	return wx, wy
-}
-
-func WorldToPolygonColliderAnchorPos(wx, wy, halfBoundingW, halfBoundingH, collisionSpaceOffsetX, collisionSpaceOffsetY float64) (float64, float64) {
-	return wx - halfBoundingW + collisionSpaceOffsetX, wy - halfBoundingH + collisionSpaceOffsetY
-}
-
-func PolygonColliderAnchorToWorldPos(cx, cy, halfBoundingW, halfBoundingH, collisionSpaceOffsetX, collisionSpaceOffsetY float64) (float64, float64) {
-	return cx + halfBoundingW - collisionSpaceOffsetX, cy + halfBoundingH - collisionSpaceOffsetY
-}
-
-func PolygonColliderAnchorToVirtualGridPos(cx, cy, halfBoundingW, halfBoundingH, collisionSpaceOffsetX, collisionSpaceOffsetY float64, worldToVirtualGridRatio float64) (int32, int32) {
-	wx, wy := PolygonColliderAnchorToWorldPos(cx, cy, halfBoundingW, halfBoundingH, collisionSpaceOffsetX, collisionSpaceOffsetY)
-	return WorldToVirtualGridPos(wx, wy, worldToVirtualGridRatio)
-}
-
-func VirtualGridToPolygonColliderAnchorPos(vx, vy int32, halfBoundingW, halfBoundingH, collisionSpaceOffsetX, collisionSpaceOffsetY float64, virtualGridToWorldRatio float64) (float64, float64) {
-	wx, wy := VirtualGridToWorldPos(vx, vy, virtualGridToWorldRatio)
-	return WorldToPolygonColliderAnchorPos(wx, wy, halfBoundingW, halfBoundingH, collisionSpaceOffsetX, collisionSpaceOffsetY)
+func RectCenterStr(body *resolv.Object, halfBoundingW, halfBoundingH, topPadding, bottomPadding, leftPadding, rightPadding, spaceOffsetX, spaceOffsetY float64) string {
+	return fmt.Sprintf("{%.2f, %.2f}", body.X+leftPadding+halfBoundingW-spaceOffsetX, body.Y+bottomPadding+halfBoundingH-spaceOffsetY)
 }

dnmshared/tmx_parser.go

@@ -3,12 +3,13 @@ package dnmshared
 import (
 	"bytes"
 	"compress/zlib"
-	. "dnmshared/sharedprotos"
 	"encoding/base64"
 	"encoding/xml"
 	"errors"
+	"fmt"
 	"go.uber.org/zap"
 	"io/ioutil"
+	. "jsexport/battle"
 	"math"
 	"strconv"
 	"strings"
@@ -43,13 +44,13 @@ type TmxOrTsxPolyline struct {
 
 type TmxOrTsxObject struct {
 	Id         int                 `xml:"id,attr"`
-	Gid        *int                `xml:"gid,attr"`
+	Gid        int                 `xml:"gid,attr"`
 	X          float64             `xml:"x,attr"`
 	Y          float64             `xml:"y,attr"`
 	Properties *TmxOrTsxProperties `xml:"properties"`
 	Polyline   *TmxOrTsxPolyline   `xml:"polyline"`
-	Width      *float64            `xml:"width,attr"`
-	Height     *float64            `xml:"height,attr"`
+	Width      float64             `xml:"width,attr"`
+	Height     float64             `xml:"height,attr"`
 }
 
 type TmxOrTsxObjectGroup struct {
@@ -174,8 +175,8 @@ func (l *TmxLayer) decodeBase64() ([]uint32, error) {
 	return gids, nil
 }
 
-type StrToVec2DListMap map[string]*Vec2DList
-type StrToPolygon2DListMap map[string]*Polygon2DList
+type StrToVec2DListMap map[string](*[]*Vec2D)
+type StrToPolygon2DListMap map[string](*[]*Polygon2D)
 
 func tmxPolylineToPolygon2D(pTmxMapIns *TmxMap, singleObjInTmxFile *TmxOrTsxObject, targetPolyline *TmxOrTsxPolyline) (*Polygon2D, error) {
 	if nil == targetPolyline {
@@ -320,21 +321,18 @@ func DeserializeTsxToColliderDict(pTmxMapIns *TmxMap, byteArrOfTsxFile []byte, f
 				theStrToPolygon2DListMap = gidBoundariesMap[globalGid]
 			}
 
-			var pThePolygon2DList *Polygon2DList
-			if _, ok := theStrToPolygon2DListMap[key]; ok {
-				pThePolygon2DList = theStrToPolygon2DListMap[key]
-			} else {
-				pThePolygon2DList = &Polygon2DList{
-					Eles: make([]*Polygon2D, 0),
-				}
-				theStrToPolygon2DListMap[key] = pThePolygon2DList
+			var pThePolygon2DList *[]*Polygon2D = nil
+			if _, ok := theStrToPolygon2DListMap[key]; !ok {
+				tmp := make([]*Polygon2D, 0)
+				theStrToPolygon2DListMap[key] = &tmp
 			}
+			pThePolygon2DList = theStrToPolygon2DListMap[key]
 
 			thePolygon2DFromPolyline, err := tsxPolylineToOffsetsWrtTileCenter(pTmxMapIns, singleObj, singleObj.Polyline, pTsxIns)
 			if nil != err {
 				panic(err)
 			}
-			pThePolygon2DList.Eles = append(pThePolygon2DList.Eles, thePolygon2DFromPolyline)
+			*pThePolygon2DList = append(*pThePolygon2DList, thePolygon2DFromPolyline)
 		}
 	}
 	return nil
@@ -347,13 +345,10 @@ func ParseTmxLayersAndGroups(pTmxMapIns *TmxMap, gidBoundariesMap map[int]StrToP
 	for _, objGroup := range pTmxMapIns.ObjectGroups {
 		switch objGroup.Name {
 		case "PlayerStartingPos":
-			var pTheVec2DListToCache *Vec2DList
-			_, ok := toRetStrToVec2DListMap[objGroup.Name]
-			if false == ok {
-				pTheVec2DListToCache = &Vec2DList{
-					Eles: make([]*Vec2D, 0),
-				}
-				toRetStrToVec2DListMap[objGroup.Name] = pTheVec2DListToCache
+			var pTheVec2DListToCache *[]*Vec2D = nil
+			if _, ok := toRetStrToVec2DListMap[objGroup.Name]; !ok {
+				tmp := make([]*Vec2D, 0)
+				toRetStrToVec2DListMap[objGroup.Name] = &tmp
 			}
 			pTheVec2DListToCache = toRetStrToVec2DListMap[objGroup.Name]
 			for _, singleObjInTmxFile := range objGroup.Objects {
@@ -362,32 +357,50 @@ func ParseTmxLayersAndGroups(pTmxMapIns *TmxMap, gidBoundariesMap map[int]StrToP
 					Y: singleObjInTmxFile.Y,
 				}
 				thePosInWorld := pTmxMapIns.continuousObjLayerOffsetToContinuousMapNodePos(theUntransformedPos)
-				pTheVec2DListToCache.Eles = append(pTheVec2DListToCache.Eles, &thePosInWorld)
+				*pTheVec2DListToCache = append(*pTheVec2DListToCache, &thePosInWorld)
 			}
 		case "Barrier":
 			// Note that in this case, the "Polygon2D.Anchor" of each "TmxOrTsxObject" is exactly overlapping with "Polygon2D.Points[0]".
-			var pThePolygon2DListToCache *Polygon2DList
-			_, ok := toRetStrToPolygon2DListMap[objGroup.Name]
-			if false == ok {
-				pThePolygon2DListToCache = &Polygon2DList{
-					Eles: make([]*Polygon2D, 0),
-				}
-				toRetStrToPolygon2DListMap[objGroup.Name] = pThePolygon2DListToCache
+			var pThePolygon2DListToCache *[]*Polygon2D = nil
+			if _, ok := toRetStrToPolygon2DListMap[objGroup.Name]; !ok {
+				tmp := make([]*Polygon2D, 0)
+				toRetStrToPolygon2DListMap[objGroup.Name] = &tmp
 			}
+			pThePolygon2DListToCache = toRetStrToPolygon2DListMap[objGroup.Name]
 
 			for _, singleObjInTmxFile := range objGroup.Objects {
 				if nil == singleObjInTmxFile.Polyline {
-					continue
-				}
-				if nil == singleObjInTmxFile.Properties.Property || "boundary_type" != singleObjInTmxFile.Properties.Property[0].Name || "barrier" != singleObjInTmxFile.Properties.Property[0].Value {
-					continue
+					pts := make([]*Vec2D, 4)
+					s := make([]string, 0)
+					pts[0] = &Vec2D{
+						X: float64(0),
+						Y: float64(0),
+					}
+					pts[1] = &Vec2D{
+						X: float64(0),
+						Y: singleObjInTmxFile.Height,
+					}
+					pts[2] = &Vec2D{
+						X: singleObjInTmxFile.Width,
+						Y: singleObjInTmxFile.Height,
+					}
+					pts[3] = &Vec2D{
+						X: singleObjInTmxFile.Width,
+						Y: float64(0),
+					}
+					for _, pt := range pts {
+						s = append(s, fmt.Sprintf("%v,%v", pt.X, pt.Y))
+					}
+					singleObjInTmxFile.Polyline = &TmxOrTsxPolyline{
+						Points: strings.Join(s, " "),
+					}
 				}
 
 				thePolygon2DInWorld, err := tmxPolylineToPolygon2D(pTmxMapIns, singleObjInTmxFile, singleObjInTmxFile.Polyline)
 				if nil != err {
 					panic(err)
 				}
-				pThePolygon2DListToCache.Eles = append(pThePolygon2DListToCache.Eles, thePolygon2DInWorld)
+				*pThePolygon2DListToCache = append(*pThePolygon2DListToCache, thePolygon2DInWorld)
 			}
 		default:
 		}

dragonBonesAnimProjects/library/SoldierWaterGhost.json

@@ -1 +0,0 @@
-{"SubTexture":[{"width":23,"y":44,"height":22,"name":"biu","x":53},{"width":9,"y":68,"height":14,"name":"rightArm","x":76},{"y":35,"frameX":-1,"frameY":0,"width":27,"frameWidth":29,"height":32,"name":"yinmoqe00","frameHeight":32,"x":89},{"width":34,"y":1,"height":41,"name":"body","x":53},{"width":9,"y":44,"height":13,"name":"rightShoulder","x":78},{"y":50,"frameX":0,"frameY":0,"width":19,"frameWidth":19,"height":18,"name":"rightFrontArm","frameHeight":18,"x":23},{"width":14,"y":70,"height":14,"name":"rightHand","x":23},{"y":68,"frameX":0,"frameY":0,"width":12,"frameWidth":12,"height":12,"name":"leftArm","frameHeight":12,"x":62},{"width":13,"y":73,"height":12,"name":"leftShoulder","x":1},{"width":20,"y":50,"height":21,"name":"leftFrontArm","x":1},{"width":33,"y":1,"height":32,"name":"head","x":89},{"width":50,"y":1,"height":47,"name":"head2","x":1},{"width":16,"y":68,"height":14,"name":"leftHand","x":44},{"y":59,"frameX":-1,"frameY":-2,"width":4,"frameWidth":8,"height":4,"name":"huomiao01","frameHeight":8,"x":78}],"width":128,"height":128,"name":"SoldierWaterGhost","imagePath":"SoldierWaterGhost_tex.png"}

dragonBonesProjects/library/SoldierWaterGhost.json

@@ -0,0 +1 @@
+{"width":128,"SubTexture":[{"frameWidth":23,"y":50,"frameX":-2,"frameHeight":22,"frameY":-2,"width":19,"height":19,"name":"biu","x":1},{"width":9,"y":50,"height":14,"name":"rightArm","x":42},{"frameWidth":29,"y":34,"frameX":-6,"frameHeight":32,"frameY":0,"width":20,"height":32,"name":"yinmoqe00","x":88},{"frameWidth":34,"y":1,"frameX":0,"frameHeight":41,"frameY":0,"width":33,"height":39,"name":"body","x":53},{"width":9,"y":56,"height":13,"name":"rightShoulder","x":74},{"frameWidth":19,"y":50,"frameX":0,"frameHeight":18,"frameY":0,"width":18,"height":17,"name":"rightFrontArm","x":22},{"width":14,"y":50,"height":14,"name":"rightHand","x":110},{"width":12,"y":42,"height":12,"name":"leftArm","x":74},{"width":13,"y":66,"height":12,"name":"leftShoulder","x":110},{"frameWidth":20,"y":42,"frameX":-1,"frameHeight":21,"frameY":0,"width":19,"height":21,"name":"leftFrontArm","x":53},{"width":50,"y":1,"height":47,"name":"head2","x":1},{"frameWidth":33,"y":1,"frameX":-1,"frameHeight":32,"frameY":0,"width":32,"height":31,"name":"head","x":88},{"width":16,"y":34,"height":14,"name":"leftHand","x":110},{"frameWidth":8,"y":1,"frameX":-2,"frameHeight":8,"frameY":-3,"width":2,"height":2,"name":"huomiao01","x":122}],"height":128,"name":"SoldierWaterGhost","imagePath":"SoldierWaterGhost_tex.png"}

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/plugin_scripts/constants.js

@@ -23,9 +23,9 @@ var constants = {
     FILE_NAME: {
       TREASURE_PICKEDUP: "TreasurePicked",
       CRASHED_BY_TRAP_BULLET: "CrashedByTrapBullet",
-      HIGH_SCORE_TREASURE_PICKED:"HighScoreTreasurePicked",
-      COUNT_DOWN_10SEC_TO_END:"countDown10SecToEnd",
-      BGM: "BGM" 
+      HIGH_SCORE_TREASURE_PICKED: "HighScoreTreasurePicked",
+      COUNT_DOWN_10SEC_TO_END: "countDown10SecToEnd",
+      BGM: "BGM"
     }
   },
   ROUTE_PATH: (_ROUTE_PATH = {
@@ -55,39 +55,41 @@ var constants = {
   },
   RET_CODE: {
     /**
-    * NOTE: The "RET_CODE"s from 1000-1015 are reserved for the websocket "WebsocketStdCloseCode"s.
+    * NOTE: The "RET_CODE"s from 1000-1015 are reserved for the websocket "WebsocketStdCloseCode"s, custom codes should be between 3000-4999
     *
     * References
     * - https://tools.ietf.org/html/rfc6455#section-7.4
     * - https://godoc.org/github.com/gorilla/websocket#pkg-constants.
     */
-    "__comment__": "基础",
-    "OK": 9000,
-    "UNKNOWN_ERROR": 9001,
-    "INVALID_REQUEST_PARAM": 9002,
-    "IS_TEST_ACC": 9003,
-    "MYSQL_ERROR": 9004,
-    "NONEXISTENT_ACT": 9005,
-    "LACK_OF_DIAMOND": 9006,
-    "LACK_OF_GOLD": 9007,
-    "LACK_OF_ENERGY": 9008,
-    "NONEXISTENT_ACT_HANDLER": 9009,
-    "LOCALLY_NO_AVAILABLE_ROOM": 9010,
-    "LOCALLY_NO_SPECIFIED_ROOM": 9011,
-    "PLAYER_NOT_ADDABLE_TO_ROOM": 9012,
-    "PLAYER_NOT_READDABLE_TO_ROOM": 9013,
-    "PLAYER_NOT_FOUND": 9014,
-    "PLAYER_CHEATING": 9015,
-  
+    "__comment__": "Websocket",
+    "OK": 3000,
+    "UNKNOWN_ERROR": 3001,
+    "INVALID_REQUEST_PARAM": 3002,
+    "IS_TEST_ACC": 3003,
+    "MYSQL_ERROR": 3004,
+    "NONEXISTENT_ACT": 3005,
+    "LACK_OF_DIAMOND": 3006,
+    "LACK_OF_GOLD": 3007,
+    "LACK_OF_ENERGY": 3008,
+    "NONEXISTENT_ACT_HANDLER": 3009,
+    "LOCALLY_NO_AVAILABLE_ROOM": 3010,
+    "LOCALLY_NO_SPECIFIED_ROOM": 3011,
+    "PLAYER_NOT_ADDABLE_TO_ROOM": 3012,
+    "PLAYER_NOT_READDABLE_TO_ROOM": 3013,
+    "PLAYER_NOT_FOUND": 3014,
+    "PLAYER_CHEATING": 3015,
+    "WECHAT_SERVER_ERROR": 3016,
+    "IS_BOT_ACC": 3017,
+    "ACTIVE_WATCHDOG": 3018,
+    "BATTLE_STOPPED": 3019,
+    "CLIENT_MISMATCHED_RENDER_FRAME": 3020,
 
-    "__comment__": "SMS",
-    "SMS_CAPTCHA_REQUESTED_TOO_FREQUENTLY": 5001,
-    "SMS_CAPTCHA_NOT_MATCH": 5002,
+    "__comment__": "OTHERS",
     "INVALID_TOKEN": 2001,
 
     "DUPLICATED": 2002,
     "INCORRECT_HANDLE": 2004,
-    "NONEXISTENT_HANDLE": 2005,
+
     "INCORRECT_PASSWORD": 2006,
     "INCORRECT_CAPTCHA": 2007,
     "INVALID_EMAIL_LITERAL": 2008,
@@ -99,9 +101,15 @@ var constants = {
     "FAILED_TO_DELETE": 2015,
     "FAILED_TO_CREATE": 2016,
     "INCORRECT_PHONE_NUMBER": 2018,
-    "PASSWORD_RESET_CODE_GENERATION_PER_EMAIL_TOO_FREQUENTLY": 4000,
-    "TRADE_CREATION_TOO_FREQUENTLY": 4002,
-    "MAP_NOT_UNLOCKED": 4003,
+    "INSUFFICIENT_MEM_TO_ALLOCATE_CONNECTION": 2019,
+    "PASSWORD_RESET_CODE_GENERATION_PER_EMAIL_TOO_FREQUENTLY": 2020,
+    "TRADE_CREATION_TOO_FREQUENTLY": 2021,
+    "MAP_NOT_UNLOCKED": 2022,
+
+    "GET_SMS_CAPTCHA_RESP_ERROR_CODE": 2023,
+    "SMS_CAPTCHA_REQUESTED_TOO_FREQUENTLY": 2024,
+    "SMS_CAPTCHA_NOT_MATCH": 2025,
+    "SAME_PLAYER_ALREADY_IN_SAME_ROOM": 2026,
 
     "NOT_IMPLEMENTED_YET": 65535
   },

frontend/assets/resources/animation/BluePacman/Bottom.anim.meta

@@ -1,5 +0,0 @@
-{
-  "ver": "2.1.0",
-  "uuid": "115ea7bb-d47f-4d3c-a52a-f46584346c3f",
-  "subMetas": {}
-}

frontend/assets/resources/animation/BluePacman/BottomLeft.anim.meta

@@ -1,5 +0,0 @@
-{
-  "ver": "2.1.0",
-  "uuid": "a1bf7c7c-b9f7-4b65-86e3-f86a9e798fb6",
-  "subMetas": {}
-}

frontend/assets/resources/animation/BluePacman/BottomRight.anim.meta

@@ -1,5 +0,0 @@
-{
-  "ver": "2.1.0",
-  "uuid": "d5af527a-9f0c-4398-b2dd-84426be7bd32",
-  "subMetas": {}
-}

frontend/assets/resources/animation/BluePacman/Left.anim.meta

@@ -1,5 +0,0 @@
-{
-  "ver": "2.1.0",
-  "uuid": "b60618d7-569d-4f13-bdeb-f20341fbadb6",
-  "subMetas": {}
-}

frontend/assets/resources/animation/BluePacman/Right.anim

@@ -1,31 +0,0 @@
-{
-  "__type__": "cc.AnimationClip",
-  "_name": "Right",
-  "_objFlags": 0,
-  "_native": "",
-  "_duration": 0.25,
-  "sample": 12,
-  "speed": 1,
-  "wrapMode": "2",
-  "curveData": {
-    "comps": {
-      "cc.Sprite": {
-        "spriteFrame": [
-          {
-            "frame": 0,
-            "value": {
-              "__uuid__": "a6ec6a1c-dde5-459d-84f9-7b2b8a163e7b"
-            }
-          },
-          {
-            "frame": 0.16666666666666666,
-            "value": {
-              "__uuid__": "b5d11244-f30a-4b0d-b67b-23648d253d44"
-            }
-          }
-        ]
-      }
-    }
-  },
-  "events": []
-}

frontend/assets/resources/animation/BluePacman/Right.anim.meta

@@ -1,5 +0,0 @@
-{
-  "ver": "2.1.0",
-  "uuid": "0b3fb38e-9110-4191-9b72-6b64a224d049",
-  "subMetas": {}
-}

frontend/assets/resources/animation/BluePacman/Top.anim

@@ -1,31 +0,0 @@
-{
-  "__type__": "cc.AnimationClip",
-  "_name": "Top",
-  "_objFlags": 0,
-  "_native": "",
-  "_duration": 0.25,
-  "sample": 12,
-  "speed": 1,
-  "wrapMode": "2",
-  "curveData": {
-    "comps": {
-      "cc.Sprite": {
-        "spriteFrame": [
-          {
-            "frame": 0,
-            "value": {
-              "__uuid__": "8967d249-e9cf-4e44-85e8-6b9377129d9e"
-            }
-          },
-          {
-            "frame": 0.16666666666666666,
-            "value": {
-              "__uuid__": "492a57fb-6a5c-423a-bcfe-0695a7828881"
-            }
-          }
-        ]
-      }
-    }
-  },
-  "events": []
-}

frontend/assets/resources/animation/BluePacman/Top.anim.meta

@@ -1,5 +0,0 @@
-{
-  "ver": "2.1.0",
-  "uuid": "1bc6de53-800b-4da3-ab8e-4a45e3aa4230",
-  "subMetas": {}
-}

frontend/assets/resources/animation/BluePacman/TopLeft.anim

@@ -1,31 +0,0 @@
-{
-  "__type__": "cc.AnimationClip",
-  "_name": "TopLeft",
-  "_objFlags": 0,
-  "_native": "",
-  "_duration": 0.25,
-  "sample": 12,
-  "speed": 1,
-  "wrapMode": "2",
-  "curveData": {
-    "comps": {
-      "cc.Sprite": {
-        "spriteFrame": [
-          {
-            "frame": 0,
-            "value": {
-              "__uuid__": "96187689-85df-46e8-b4db-410eae03c135"
-            }
-          },
-          {
-            "frame": 0.16666666666666666,
-            "value": {
-              "__uuid__": "6b002583-7688-43d3-b3fa-102ae0046628"
-            }
-          }
-        ]
-      }
-    }
-  },
-  "events": []
-}

frontend/assets/resources/animation/BluePacman/TopLeft.anim.meta

@@ -1,5 +0,0 @@
-{
-  "ver": "2.1.0",
-  "uuid": "ee0d670c-893e-4e4d-96dd-5571db18ee97",
-  "subMetas": {}
-}

frontend/assets/resources/animation/BluePacman/TopRight.anim

@@ -1,31 +0,0 @@
-{
-  "__type__": "cc.AnimationClip",
-  "_name": "TopRight",
-  "_objFlags": 0,
-  "_native": "",
-  "_duration": 0.25,
-  "sample": 12,
-  "speed": 1,
-  "wrapMode": "2",
-  "curveData": {
-    "comps": {
-      "cc.Sprite": {
-        "spriteFrame": [
-          {
-            "frame": 0,
-            "value": {
-              "__uuid__": "ba89046f-8b70-4edb-9f61-534dff476325"
-            }
-          },
-          {
-            "frame": 0.16666666666666666,
-            "value": {
-              "__uuid__": "bc1ef316-d6ad-4538-b223-a0fed8094609"
-            }
-          }
-        ]
-      }
-    }
-  },
-  "events": []
-}

frontend/assets/resources/animation/BluePacman/TopRight.anim.meta

@@ -1,5 +0,0 @@
-{
-  "ver": "2.1.0",
-  "uuid": "596df84a-2e4e-4f1d-967c-a82649f564a8",
-  "subMetas": {}
-}

frontend/assets/resources/animation/BluePacman/attackedLeft.anim.meta

@@ -1,5 +0,0 @@
-{
-  "ver": "2.1.0",
-  "uuid": "8acc4e9f-3c47-4b66-9a9d-d012709680f6",
-  "subMetas": {}
-}

frontend/assets/resources/animation/BluePacman/attackedRight.anim.meta

@@ -1,5 +0,0 @@
-{
-  "ver": "2.1.0",
-  "uuid": "c7cda0cd-dbce-4722-abd2-aeca28263a21",
-  "subMetas": {}
-}

frontend/assets/resources/animation/Explosion.meta

@@ -1,6 +1,6 @@
 {
   "ver": "1.0.1",
-  "uuid": "135f388e-7e75-4ece-b267-4e07835cba74",
+  "uuid": "c7c2ac6e-f1ea-4233-b6a4-aa5b96b61e17",
   "isSubpackage": false,
   "subpackageName": "",
   "subMetas": {}

frontend/assets/resources/animation/Explosion/Fireball1Explosion.anim

@@ -0,0 +1,55 @@
+{
+  "__type__": "cc.AnimationClip",
+  "_name": "Fireball1Explosion",
+  "_objFlags": 0,
+  "_native": "",
+  "_duration": 0.5,
+  "sample": 60,
+  "speed": 1,
+  "wrapMode": 1,
+  "curveData": {
+    "comps": {
+      "cc.Sprite": {
+        "spriteFrame": [
+          {
+            "frame": 0,
+            "value": {
+              "__uuid__": "f4ad4f9f-4890-450b-9334-68fe6b903893"
+            }
+          },
+          {
+            "frame": 0.05,
+            "value": {
+              "__uuid__": "c6a5994f-251d-4191-a550-dfef979bab59"
+            }
+          },
+          {
+            "frame": 0.11666666666666667,
+            "value": {
+              "__uuid__": "417e58d9-e364-47f7-9364-f31ad3452adc"
+            }
+          },
+          {
+            "frame": 0.16666666666666666,
+            "value": {
+              "__uuid__": "8b566f26-b34d-4da6-bdaa-078358a5b685"
+            }
+          },
+          {
+            "frame": 0.31666666666666665,
+            "value": {
+              "__uuid__": "6ec5f75d-307e-4292-b667-cbbb5a52c2f6"
+            }
+          },
+          {
+            "frame": 0.48333333333333334,
+            "value": {
+              "__uuid__": "d89977f1-d927-4a08-9591-9feb1daf68c8"
+            }
+          }
+        ]
+      }
+    }
+  },
+  "events": []
+}

frontend/assets/resources/animation/Explosion/Fireball1Explosion.anim.meta

@@ -0,0 +1,5 @@
+{
+  "ver": "2.1.0",
+  "uuid": "7941215a-2b8c-4798-954b-4f1b16d5f6f5",
+  "subMetas": {}
+}

frontend/assets/resources/animation/Explosion/Fireball2Explosion.anim

@@ -0,0 +1,85 @@
+{
+  "__type__": "cc.AnimationClip",
+  "_name": "Fireball2Explosion",
+  "_objFlags": 0,
+  "_native": "",
+  "_duration": 0.5,
+  "sample": 60,
+  "speed": 1,
+  "wrapMode": 1,
+  "curveData": {
+    "comps": {
+      "cc.Sprite": {
+        "spriteFrame": [
+          {
+            "frame": 0,
+            "value": {
+              "__uuid__": "a1979f05-3ecc-4d70-9ea9-7822e35602c3"
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