Added backend dynamics toggle.

This commit is contained in:
genxium 2022-10-25 10:42:36 +08:00
parent 6d075877ec
commit 486c46f608

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@ -188,6 +188,7 @@ type Room struct {
StageTileH int32
RawBattleStrToVec2DListMap StrToVec2DListMap
RawBattleStrToPolygon2DListMap StrToPolygon2DListMap
BackendDynamicsEnabled bool
}
const (
@ -459,17 +460,12 @@ func (pR *Room) StartBattle() {
}
// Force setting all-confirmed of buffered inputFrames periodically
unconfirmedMask := pR.forceConfirmationIfApplicable()
dynamicsDuration := int64(0)
if 0 <= pR.LastAllConfirmedInputFrameId {
dynamicsStartedAt := utils.UnixtimeNano()
// Apply "all-confirmed inputFrames" to move forward "pR.CurDynamicsRenderFrameId"
nextDynamicsRenderFrameId := pR.ConvertToLastUsedRenderFrameId(pR.LastAllConfirmedInputFrameId, pR.InputDelayFrames)
Logger.Debug(fmt.Sprintf("roomId=%v, room.RenderFrameId=%v, LastAllConfirmedInputFrameId=%v, InputDelayFrames=%v, nextDynamicsRenderFrameId=%v", pR.Id, pR.RenderFrameId, pR.LastAllConfirmedInputFrameId, pR.InputDelayFrames, nextDynamicsRenderFrameId))
pR.applyInputFrameDownsyncDynamics(pR.CurDynamicsRenderFrameId, nextDynamicsRenderFrameId)
dynamicsDuration = utils.UnixtimeNano() - dynamicsStartedAt
}
unconfirmedMask := uint64(0)
if pR.BackendDynamicsEnabled {
unconfirmedMask = pR.forceConfirmationIfApplicable()
} else {
pR.markConfirmationIfApplicable()
}
upperToSendInputFrameId := atomic.LoadInt32(&(pR.LastAllConfirmedInputFrameId))
/*
@ -481,13 +477,26 @@ func (pR *Room) StartBattle() {
Hence even upon resync, it's still possible that "refRenderFrameId < frontend.chaserRenderFrameId".
*/
refRenderFrameId := pR.ConvertToGeneratingRenderFrameId(upperToSendInputFrameId) + (1 << pR.InputScaleFrames) - 1
// [WARNING] The following inequalities are seldom true, but just to avoid that in good network condition the frontend resyncs itself to a "too advanced frontend.renderFrameId", and then starts upsyncing "too advanced inputFrameId".
if refRenderFrameId > pR.RenderFrameId {
refRenderFrameId = pR.RenderFrameId
}
if refRenderFrameId > pR.CurDynamicsRenderFrameId {
refRenderFrameId = pR.CurDynamicsRenderFrameId
}
dynamicsDuration := int64(0)
if pR.BackendDynamicsEnabled {
if 0 <= pR.LastAllConfirmedInputFrameId {
dynamicsStartedAt := utils.UnixtimeNano()
// Apply "all-confirmed inputFrames" to move forward "pR.CurDynamicsRenderFrameId"
nextDynamicsRenderFrameId := pR.ConvertToLastUsedRenderFrameId(pR.LastAllConfirmedInputFrameId, pR.InputDelayFrames)
Logger.Debug(fmt.Sprintf("roomId=%v, room.RenderFrameId=%v, LastAllConfirmedInputFrameId=%v, InputDelayFrames=%v, nextDynamicsRenderFrameId=%v", pR.Id, pR.RenderFrameId, pR.LastAllConfirmedInputFrameId, pR.InputDelayFrames, nextDynamicsRenderFrameId))
pR.applyInputFrameDownsyncDynamics(pR.CurDynamicsRenderFrameId, nextDynamicsRenderFrameId)
dynamicsDuration = utils.UnixtimeNano() - dynamicsStartedAt
}
// [WARNING] The following inequality are seldom true, but just to avoid that in good network condition the frontend resyncs itself to a "too advanced frontend.renderFrameId", and then starts upsyncing "too advanced inputFrameId".
if refRenderFrameId > pR.CurDynamicsRenderFrameId {
refRenderFrameId = pR.CurDynamicsRenderFrameId
}
}
for playerId, player := range pR.Players {
if swapped := atomic.CompareAndSwapInt32(&player.BattleState, PlayerBattleStateIns.ACTIVE, PlayerBattleStateIns.ACTIVE); !swapped {
// [WARNING] DON'T send anything if the player is disconnected, because it could jam the channel and cause significant delay upon "battle recovery for reconnected player".
@ -537,7 +546,7 @@ func (pR *Room) StartBattle() {
indiceInJoinIndexBooleanArr := uint32(player.JoinIndex - 1)
var joinMask uint64 = (1 << indiceInJoinIndexBooleanArr)
if MAGIC_LAST_SENT_INPUT_FRAME_ID_READDED == player.LastSentInputFrameId || 0 < (unconfirmedMask&joinMask) {
if pR.BackendDynamicsEnabled && (MAGIC_LAST_SENT_INPUT_FRAME_ID_READDED == player.LastSentInputFrameId || 0 < (unconfirmedMask&joinMask)) {
// [WARNING] Even upon "MAGIC_LAST_SENT_INPUT_FRAME_ID_READDED", it could be true that "0 == (unconfirmedMask & joinMask)"!
tmp := pR.RenderFrameBuffer.GetByFrameId(refRenderFrameId)
if nil == tmp {
@ -801,6 +810,8 @@ func (pR *Room) OnDismissed() {
pR.InputFrameUpsyncDelayTolerance = 2
pR.MaxChasingRenderFramesPerUpdate = 10
pR.BackendDynamicsEnabled = true // [WARNING] When "false", recovery upon reconnection wouldn't work!
pR.ChooseStage()
pR.EffectivePlayerCount = 0
@ -1068,6 +1079,43 @@ func (pR *Room) prefabInputFrameDownsync(inputFrameId int32) *pb.InputFrameDowns
return currInputFrameDownsync
}
func (pR *Room) markConfirmationIfApplicable() {
inputFrameId1 := pR.LastAllConfirmedInputFrameId+1
gap := int32(4) // This value is hardcoded and doesn't need be much bigger, because the backend side is supposed to never lag when "false == BackendDynamicsEnabled".
inputFrameId2 := inputFrameId1+gap
if inputFrameId2 > pR.InputsBuffer.EdFrameId {
inputFrameId2 = pR.InputsBuffer.EdFrameId
}
totPlayerCnt := uint32(pR.Capacity)
allConfirmedMask := uint64((1 << totPlayerCnt) - 1)
for inputFrameId := inputFrameId1; inputFrameId < inputFrameId2; inputFrameId++ {
tmp := pR.InputsBuffer.GetByFrameId(inputFrameId)
if nil == tmp {
panic(fmt.Sprintf("inputFrameId=%v doesn't exist for roomId=%v, this is abnormal because the server should prefab inputFrameDownsync in a most advanced pace, check the prefab logic! InputsBuffer=%v", inputFrameId, pR.Id, pR.InputsBufferString(false)))
}
inputFrameDownsync := tmp.(*pb.InputFrameDownsync)
for _, player := range pR.Players {
bufIndex := pR.toDiscreteInputsBufferIndex(inputFrameId, player.JoinIndex)
tmp, loaded := pR.DiscreteInputsBuffer.LoadAndDelete(bufIndex) // It's safe to "LoadAndDelete" here because the "inputFrameUpsync" of this player is already remembered by the corresponding "inputFrameDown".
if !loaded {
continue
}
inputFrameUpsync := tmp.(*pb.InputFrameUpsync)
indiceInJoinIndexBooleanArr := uint32(player.JoinIndex - 1)
inputFrameDownsync.InputList[indiceInJoinIndexBooleanArr] = pR.EncodeUpsyncCmd(inputFrameUpsync)
inputFrameDownsync.ConfirmedList |= (1 << indiceInJoinIndexBooleanArr)
}
// Force confirmation of "inputFrame2"
if allConfirmedMask == inputFrameDownsync.ConfirmedList {
pR.onInputFrameDownsyncAllConfirmed(inputFrameDownsync, -1)
} else {
break
}
}
}
func (pR *Room) forceConfirmationIfApplicable() uint64 {
// Force confirmation of non-all-confirmed inputFrame EXACTLY ONE AT A TIME, returns the non-confirmed mask of players, e.g. in a 4-player-battle returning 1001 means that players with JoinIndex=1 and JoinIndex=4 are non-confirmed for inputFrameId2
renderFrameId1 := (pR.RenderFrameId - pR.NstDelayFrames) // the renderFrameId which should've been rendered on frontend