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Updated input prediction approach upon dynamics.

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This commit is contained in:
genxium 2023-02-25 23:05:25 +08:00
parent 7b878ff947
commit be5200663c
7 changed files with 55 additions and 35 deletions
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9
battle_srv/models/player.go
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@ -47,11 +47,10 @@ type Player struct {
TutorialStage int `db:"tutorial_stage"`
// other in-battle info fields
LastReceivedInputFrameId int32
LastUdpReceivedInputFrameId int32
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

38
battle_srv/models/room.go
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@ -136,7 +136,7 @@ type Room struct {
EffectivePlayerCount int32
DismissalWaitGroup sync.WaitGroup
InputsBuffer *resolv.RingBuffer // Indices are STRICTLY consecutive
InputsBufferLock sync.Mutex // Guards [InputsBuffer, LatestPlayerUpsyncedInputFrameId, LastAllConfirmedInputFrameId, LastAllConfirmedInputList, LastAllConfirmedInputFrameIdWithChange, LastIndividuallyConfirmedInputList, player.LastReceivedInputFrameId, player.LastUdpReceivedInputFrameId]
InputsBufferLock sync.Mutex // Guards [InputsBuffer, LatestPlayerUpsyncedInputFrameId, LastAllConfirmedInputFrameId, LastAllConfirmedInputList, LastAllConfirmedInputFrameIdWithChange, LastIndividuallyConfirmedInputFrameId, LastIndividuallyConfirmedInputList, player.LastConsecutiveRecvInputFrameId]
RenderFrameBuffer *resolv.RingBuffer // Indices are STRICTLY consecutive
LatestPlayerUpsyncedInputFrameId int32
LastAllConfirmedInputFrameId int32
@ -156,8 +156,9 @@ type Room struct {
TmxPointsMap StrToVec2DListMap
TmxPolygonsMap StrToPolygon2DListMap
rdfIdToActuallyUsedInput map[int32]*pb.InputFrameDownsync
LastIndividuallyConfirmedInputList []uint64
rdfIdToActuallyUsedInput map[int32]*pb.InputFrameDownsync
LastIndividuallyConfirmedInputFrameId []int32
LastIndividuallyConfirmedInputList []uint64
BattleUdpTunnelLock sync.Mutex
BattleUdpTunnelAddr *pb.PeerUdpAddr
@ -194,8 +195,7 @@ func (pR *Room) AddPlayerIfPossible(pPlayerFromDbInit *Player, speciesId int, se
pPlayerFromDbInit.AckingFrameId = -1
pPlayerFromDbInit.AckingInputFrameId = -1
pPlayerFromDbInit.LastSentInputFrameId = MAGIC_LAST_SENT_INPUT_FRAME_ID_NORMAL_ADDED
pPlayerFromDbInit.LastReceivedInputFrameId = MAGIC_LAST_SENT_INPUT_FRAME_ID_NORMAL_ADDED
pPlayerFromDbInit.LastUdpReceivedInputFrameId = MAGIC_LAST_SENT_INPUT_FRAME_ID_NORMAL_ADDED
pPlayerFromDbInit.LastConsecutiveRecvInputFrameId = MAGIC_LAST_SENT_INPUT_FRAME_ID_NORMAL_ADDED
pPlayerFromDbInit.BattleState = PlayerBattleStateIns.ADDED_PENDING_BATTLE_COLLIDER_ACK
pPlayerFromDbInit.ColliderRadius = DEFAULT_PLAYER_RADIUS // Hardcoded
@ -237,7 +237,7 @@ func (pR *Room) ReAddPlayerIfPossible(pTmpPlayerInstance *Player, session *webso
pEffectiveInRoomPlayerInstance.AckingFrameId = -1
pEffectiveInRoomPlayerInstance.AckingInputFrameId = -1
pEffectiveInRoomPlayerInstance.LastSentInputFrameId = MAGIC_LAST_SENT_INPUT_FRAME_ID_READDED
// [WARNING] DON'T reset "player.LastReceivedInputFrameId" & "player.LastUdpReceivedInputFrameId" upon reconnection!
// [WARNING] DON'T reset "player.LastConsecutiveRecvInputFrameId" & "pR.LastIndividuallyConfirmedInputFrameId[...]" upon reconnection!
pEffectiveInRoomPlayerInstance.BattleState = PlayerBattleStateIns.READDED_PENDING_BATTLE_COLLIDER_ACK
pEffectiveInRoomPlayerInstance.ColliderRadius = DEFAULT_PLAYER_RADIUS // Hardcoded
@ -804,6 +804,10 @@ func (pR *Room) OnDismissed() {
pR.RenderFrameBuffer = resolv.NewRingBuffer(pR.RenderCacheSize)
pR.InputsBuffer = resolv.NewRingBuffer((pR.RenderCacheSize >> 1) + 1)
pR.rdfIdToActuallyUsedInput = make(map[int32]*pb.InputFrameDownsync)
pR.LastIndividuallyConfirmedInputFrameId = make([]int32, pR.Capacity)
for i := 0; i < pR.Capacity; i++ {
pR.LastIndividuallyConfirmedInputFrameId[i] = MAGIC_LAST_SENT_INPUT_FRAME_ID_NORMAL_ADDED
}
pR.LastIndividuallyConfirmedInputList = make([]uint64, pR.Capacity)
pR.LatestPlayerUpsyncedInputFrameId = -1
@ -817,7 +821,7 @@ func (pR *Room) OnDismissed() {
pR.collisionHolder = resolv.NewCollision()
pR.effPushbacks = make([]*battle.Vec2D, pR.Capacity)
for i := 0; i < len(pR.effPushbacks); i++ {
for i := 0; i < pR.Capacity; i++ {
pR.effPushbacks[i] = &battle.Vec2D{X: 0, Y: 0}
}
pR.hardPushbackNormsArr = make([][]*battle.Vec2D, pR.Capacity)
@ -1190,9 +1194,9 @@ func (pR *Room) markConfirmationIfApplicable(inputFrameUpsyncBatch []*pb.InputFr
Logger.Debug(fmt.Sprintf("Omitting obsolete inputFrameUpsync#1: roomId=%v, playerId=%v, clientInputFrameId=%v, InputsBuffer=%v", pR.Id, playerId, clientInputFrameId, pR.InputsBufferString(false)))
continue
}
if clientInputFrameId < player.LastReceivedInputFrameId {
// [WARNING] It's important for correctness that we use "player.LastReceivedInputFrameId" instead of "player.LastUdpReceivedInputFrameId" here!
Logger.Debug(fmt.Sprintf("Omitting obsolete inputFrameUpsync#2: roomId=%v, playerId=%v, clientInputFrameId=%v, playerLastReceivedInputFrameId=%v, InputsBuffer=%v", pR.Id, playerId, clientInputFrameId, player.LastReceivedInputFrameId, pR.InputsBufferString(false)))
if clientInputFrameId < player.LastConsecutiveRecvInputFrameId {
// [WARNING] It's important for correctness that we use "player.LastConsecutiveRecvInputFrameId" instead of "pR.LastIndividuallyConfirmedInputFrameId[player.JoinIndex-1]" here!
Logger.Debug(fmt.Sprintf("Omitting obsolete inputFrameUpsync#2: roomId=%v, playerId=%v, clientInputFrameId=%v, playerLastConsecutiveRecvInputFrameId=%v, InputsBuffer=%v", pR.Id, playerId, clientInputFrameId, player.LastConsecutiveRecvInputFrameId, pR.InputsBufferString(false)))
continue
}
if clientInputFrameId > pR.InputsBuffer.EdFrameId {
@ -1208,19 +1212,19 @@ func (pR *Room) markConfirmationIfApplicable(inputFrameUpsyncBatch []*pb.InputFr
/*
[WARNING] We have to distinguish whether or not the incoming batch is from UDP here, otherwise "pR.LatestPlayerUpsyncedInputFrameId - pR.LastAllConfirmedInputFrameId" might become unexpectedly large in case of "UDP packet loss + slow ws session"!
Moreover, only ws session upsyncs should advance "player.LastReceivedInputFrameId" & "pR.LatestPlayerUpsyncedInputFrameId".
Moreover, only ws session upsyncs should advance "player.LastConsecutiveRecvInputFrameId" & "pR.LatestPlayerUpsyncedInputFrameId".
Kindly note that the updates of "player.LastReceivedInputFrameId" could be discrete before and after reconnection.
Kindly note that the updates of "player.LastConsecutiveRecvInputFrameId" could be discrete before and after reconnection.
*/
player.LastReceivedInputFrameId = clientInputFrameId
player.LastConsecutiveRecvInputFrameId = clientInputFrameId
if clientInputFrameId > pR.LatestPlayerUpsyncedInputFrameId {
pR.LatestPlayerUpsyncedInputFrameId = clientInputFrameId
}
}
if clientInputFrameId > player.LastUdpReceivedInputFrameId {
// No need to update "player.LastUdpReceivedInputFrameId" only when "true == fromUDP", we should keep "player.LastUdpReceivedInputFrameId >= player.LastReceivedInputFrameId" at any moment.
player.LastUdpReceivedInputFrameId = clientInputFrameId
if clientInputFrameId > pR.LastIndividuallyConfirmedInputFrameId[player.JoinIndex-1] {
// No need to update "pR.LastIndividuallyConfirmedInputFrameId[player.JoinIndex-1]" only when "true == fromUDP", we should keep "pR.LastIndividuallyConfirmedInputFrameId[player.JoinIndex-1] >= player.LastConsecutiveRecvInputFrameId" at any moment.
pR.LastIndividuallyConfirmedInputFrameId[player.JoinIndex-1] = clientInputFrameId
// It's safe (in terms of getting an eventually correct "RenderFrameBuffer") to put the following update of "pR.LastIndividuallyConfirmedInputList" which is ONLY used for prediction in "InputsBuffer" out of "false == fromUDP" block.
pR.LastIndividuallyConfirmedInputList[player.JoinIndex-1] = inputFrameUpsync.Encoded
}
@ -1379,7 +1383,7 @@ func (pR *Room) applyInputFrameDownsyncDynamics(fromRenderFrameId int32, toRende
}
}
battle.ApplyInputFrameDownsyncDynamicsOnSingleRenderFrame(pR.InputsBuffer, currRenderFrame.Id, pR.Space, pR.CollisionSysMap, pR.SpaceOffsetX, pR.SpaceOffsetY, pR.CharacterConfigsArr, pR.RenderFrameBuffer, pR.collisionHolder, pR.effPushbacks, pR.hardPushbackNormsArr, pR.jumpedOrNotList, pR.dynamicRectangleColliders)
battle.ApplyInputFrameDownsyncDynamicsOnSingleRenderFrame(pR.InputsBuffer, currRenderFrame.Id, pR.Space, pR.CollisionSysMap, pR.SpaceOffsetX, pR.SpaceOffsetY, pR.CharacterConfigsArr, pR.RenderFrameBuffer, pR.collisionHolder, pR.effPushbacks, pR.hardPushbackNormsArr, pR.jumpedOrNotList, pR.dynamicRectangleColliders, pR.LastIndividuallyConfirmedInputFrameId, pR.LastIndividuallyConfirmedInputList)
pR.CurDynamicsRenderFrameId++
}
}

5
frontend/assets/scripts/Map.js
View File

@ -512,8 +512,7 @@ cc.Class({
window.clearBoundRoomIdInBothVolatileAndPersistentStorage();
window.initPersistentSessionClient(self.initAfterWSConnected, null /* Deliberately NOT passing in any `expectedRoomId`. -- YFLu */ );
};
resultPanelScriptIns.onCloseDelegate = () => {
};
resultPanelScriptIns.onCloseDelegate = () => {};
self.gameRuleNode = cc.instantiate(self.gameRulePrefab);
self.gameRuleNode.width = self.canvasNode.width;
@ -1428,7 +1427,7 @@ othersForcedDownsyncRenderFrame=${JSON.stringify(othersForcedDownsyncRenderFrame
};
self.rdfIdToActuallyUsedInput.set(i, inputFrameDownsyncClone);
}
const renderRes = gopkgs.ApplyInputFrameDownsyncDynamicsOnSingleRenderFrameJs(self.recentInputCache, i, collisionSys, collisionSysMap, self.spaceOffsetX, self.spaceOffsetY, self.chConfigsOrderedByJoinIndex, self.recentRenderCache, self.collisionHolder, self.effPushbacks, self.hardPushbackNormsArr, self.jumpedOrNotList, self.dynamicRectangleColliders);
const renderRes = gopkgs.ApplyInputFrameDownsyncDynamicsOnSingleRenderFrameJs(self.recentInputCache, i, collisionSys, collisionSysMap, self.spaceOffsetX, self.spaceOffsetY, self.chConfigsOrderedByJoinIndex, self.recentRenderCache, self.collisionHolder, self.effPushbacks, self.hardPushbackNormsArr, self.jumpedOrNotList, self.dynamicRectangleColliders, self.lastIndividuallyConfirmedInputFrameId, self.lastIndividuallyConfirmedInputList);
const nextRdf = gopkgs.GetRoomDownsyncFrame(self.recentRenderCache, i + 1);
if (true == isChasing) {

4
frontend/assets/scripts/modules/jsexport.js
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File diff suppressed because one or more lines are too long

2
frontend/settings/project.json
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@ -76,7 +76,7 @@
"shelter_z_reducer",
"shelter"
],
"last-module-event-record-time": 1676513919950,
"last-module-event-record-time": 1677337364473,
"simulator-orientation": false,
"simulator-resolution": {
"height": 640,

28
jsexport/battle/battle.go
View File

@ -490,7 +490,18 @@ func calcHardPushbacksNorms(joinIndex int32, currPlayerDownsync, thatPlayerInNex
return retCnt
}
func deriveOpPattern(currPlayerDownsync, thatPlayerInNextFrame *PlayerDownsync, currRenderFrame *RoomDownsyncFrame, chConfig *CharacterConfig, inputsBuffer *resolv.RingBuffer) (int, bool, int32, int32) {
func updateInputFrameInPlaceUponDynamics(inputFrameId int32, roomCapacity int, confirmedList uint64, inputList []uint64, lastIndividuallyConfirmedInputFrameId []int32, lastIndividuallyConfirmedInputList []uint64) {
for i := 0; i < roomCapacity; i++ {
if 0 == (confirmedList & (1 << uint32(i))) {
// This in-place update on the "inputsBuffer" is only correct when "delayed input for this player is not yet confirmed"
if lastIndividuallyConfirmedInputFrameId[i] < inputFrameId {
inputList[i] = lastIndividuallyConfirmedInputList[i]
}
}
}
}
func deriveOpPattern(currPlayerDownsync, thatPlayerInNextFrame *PlayerDownsync, currRenderFrame *RoomDownsyncFrame, chConfig *CharacterConfig, inputsBuffer *resolv.RingBuffer, lastIndividuallyConfirmedInputFrameId []int32, lastIndividuallyConfirmedInputList []uint64) (int, bool, int32, int32) {
// returns (patternId, jumpedOrNot, effectiveDx, effectiveDy)
delayedInputFrameId := ConvertToDelayedInputFrameId(currRenderFrame.Id)
delayedInputFrameIdForPrevRdf := ConvertToDelayedInputFrameId(currRenderFrame.Id - 1)
@ -503,10 +514,17 @@ func deriveOpPattern(currPlayerDownsync, thatPlayerInNextFrame *PlayerDownsync,
return PATTERN_ID_UNABLE_TO_OP, false, 0, 0
}
delayedInputList := inputsBuffer.GetByFrameId(delayedInputFrameId).(*InputFrameDownsync).InputList
delayedInputFrameDownsync := inputsBuffer.GetByFrameId(delayedInputFrameId).(*InputFrameDownsync)
delayedInputList := delayedInputFrameDownsync.InputList
roomCapacity := len(delayedInputList)
updateInputFrameInPlaceUponDynamics(delayedInputFrameId, roomCapacity, delayedInputFrameDownsync.ConfirmedList, delayedInputList, lastIndividuallyConfirmedInputFrameId, lastIndividuallyConfirmedInputList)
var delayedInputListForPrevRdf []uint64 = nil
if 0 < delayedInputFrameIdForPrevRdf {
delayedInputListForPrevRdf = inputsBuffer.GetByFrameId(delayedInputFrameIdForPrevRdf).(*InputFrameDownsync).InputList
delayedInputFrameDownsyncForPrevRdf := inputsBuffer.GetByFrameId(delayedInputFrameIdForPrevRdf).(*InputFrameDownsync)
delayedInputListForPrevRdf = delayedInputFrameDownsyncForPrevRdf.InputList
updateInputFrameInPlaceUponDynamics(delayedInputFrameIdForPrevRdf, roomCapacity, delayedInputFrameDownsyncForPrevRdf.ConfirmedList, delayedInputListForPrevRdf, lastIndividuallyConfirmedInputFrameId, lastIndividuallyConfirmedInputList)
}
jumpedOrNot := false
@ -564,7 +582,7 @@ func deriveOpPattern(currPlayerDownsync, thatPlayerInNextFrame *PlayerDownsync,
The function "ApplyInputFrameDownsyncDynamicsOnSingleRenderFrame" is creating new heap-memory blocks at 60fps, e.g. nextRenderFramePlayers & nextRenderFrameMeleeBullets & nextRenderFrameFireballBullets & effPushbacks & hardPushbackNorms & jumpedOrNotList & dynamicRectangleColliders("player" & "bullet"), which would induce "possibly performance impacting garbage collections" when many rooms are running simultaneously.
*/
func ApplyInputFrameDownsyncDynamicsOnSingleRenderFrame(inputsBuffer *resolv.RingBuffer, currRenderFrameId int32, collisionSys *resolv.Space, collisionSysMap map[int32]*resolv.Object, collisionSpaceOffsetX, collisionSpaceOffsetY float64, chConfigsOrderedByJoinIndex []*CharacterConfig, renderFrameBuffer *resolv.RingBuffer, collision *resolv.Collision, effPushbacks []*Vec2D, hardPushbackNormsArr [][]*Vec2D, jumpedOrNotList []bool, dynamicRectangleColliders []*resolv.Object) bool {
func ApplyInputFrameDownsyncDynamicsOnSingleRenderFrame(inputsBuffer *resolv.RingBuffer, currRenderFrameId int32, collisionSys *resolv.Space, collisionSysMap map[int32]*resolv.Object, collisionSpaceOffsetX, collisionSpaceOffsetY float64, chConfigsOrderedByJoinIndex []*CharacterConfig, renderFrameBuffer *resolv.RingBuffer, collision *resolv.Collision, effPushbacks []*Vec2D, hardPushbackNormsArr [][]*Vec2D, jumpedOrNotList []bool, dynamicRectangleColliders []*resolv.Object, lastIndividuallyConfirmedInputFrameId []int32, lastIndividuallyConfirmedInputList []uint64) bool {
currRenderFrame := renderFrameBuffer.GetByFrameId(currRenderFrameId).(*RoomDownsyncFrame)
nextRenderFrameId := currRenderFrameId + 1
roomCapacity := len(currRenderFrame.PlayersArr)
@ -613,7 +631,7 @@ func ApplyInputFrameDownsyncDynamicsOnSingleRenderFrame(inputsBuffer *resolv.Rin
for i, currPlayerDownsync := range currRenderFrame.PlayersArr {
chConfig := chConfigsOrderedByJoinIndex[i]
thatPlayerInNextFrame := nextRenderFramePlayers[i]
patternId, jumpedOrNot, effDx, effDy := deriveOpPattern(currPlayerDownsync, thatPlayerInNextFrame, currRenderFrame, chConfig, inputsBuffer)
patternId, jumpedOrNot, effDx, effDy := deriveOpPattern(currPlayerDownsync, thatPlayerInNextFrame, currRenderFrame, chConfig, inputsBuffer, lastIndividuallyConfirmedInputFrameId, lastIndividuallyConfirmedInputList)
jumpedOrNotList[i] = jumpedOrNot
joinIndex := currPlayerDownsync.JoinIndex

4
jsexport/main.go
View File

@ -106,9 +106,9 @@ func GetCharacterConfigsOrderedByJoinIndex(speciesIdList []int) []*js.Object {
return ret
}
func ApplyInputFrameDownsyncDynamicsOnSingleRenderFrameJs(inputsBuffer *resolv.RingBuffer, currRenderFrameId int32, collisionSys *resolv.Space, collisionSysMap map[int32]*resolv.Object, collisionSpaceOffsetX, collisionSpaceOffsetY float64, chConfigsOrderedByJoinIndex []*CharacterConfig, renderFrameBuffer *resolv.RingBuffer, collision *resolv.Collision, effPushbacks []*Vec2D, hardPushbackNormsArr [][]*Vec2D, jumpedOrNotList []bool, dynamicRectangleColliders []*resolv.Object) bool {
func ApplyInputFrameDownsyncDynamicsOnSingleRenderFrameJs(inputsBuffer *resolv.RingBuffer, currRenderFrameId int32, collisionSys *resolv.Space, collisionSysMap map[int32]*resolv.Object, collisionSpaceOffsetX, collisionSpaceOffsetY float64, chConfigsOrderedByJoinIndex []*CharacterConfig, renderFrameBuffer *resolv.RingBuffer, collision *resolv.Collision, effPushbacks []*Vec2D, hardPushbackNormsArr [][]*Vec2D, jumpedOrNotList []bool, dynamicRectangleColliders []*resolv.Object, lastIndividuallyConfirmedInputFrameId []int32, lastIndividuallyConfirmedInputList []uint64) bool {
// We need access to all fields of RoomDownsyncFrame for displaying in frontend
return ApplyInputFrameDownsyncDynamicsOnSingleRenderFrame(inputsBuffer, currRenderFrameId, collisionSys, collisionSysMap, collisionSpaceOffsetX, collisionSpaceOffsetY, chConfigsOrderedByJoinIndex, renderFrameBuffer, collision, effPushbacks, hardPushbackNormsArr, jumpedOrNotList, dynamicRectangleColliders)
return ApplyInputFrameDownsyncDynamicsOnSingleRenderFrame(inputsBuffer, currRenderFrameId, collisionSys, collisionSysMap, collisionSpaceOffsetX, collisionSpaceOffsetY, chConfigsOrderedByJoinIndex, renderFrameBuffer, collision, effPushbacks, hardPushbackNormsArr, jumpedOrNotList, dynamicRectangleColliders, lastIndividuallyConfirmedInputFrameId, lastIndividuallyConfirmedInputList)
}
func GetRoomDownsyncFrame(renderFrameBuffer *resolv.RingBuffer, frameId int32) *js.Object {