public void ServerQueueSecondDestruct(ushort eid)
{
SecondDestructQueue.Add(eid);
SecondDestructQueueTime.Add(CurrentTime);
NetSnapper.ServerSendDeghostSecondAll(eid);
}
private bool UnpackDelta(ReArrayIdPool <SnapHistory <TSnap, TStatic> > data,
int innerid,
byte[] blob, int blobstart, int blobcount,
ushort timestamp, ushort basisTimestamp)
{
SnapHistory <TSnap, TStatic> sh = data.Values[data.IdsToIndices[innerid]];
int index = sh.FindIndex(timestamp);
if (index < 0 || index >= sh.Shots.Length)
{
return(false); // out of bounds
}
int basisIndex = sh.FindIndex(basisTimestamp);
if (basisIndex < 0 || basisIndex >= sh.Shots.Length)
{
return(false); // out of bounds
}
Packer.UnpackDelta(ref sh.Shots[index], sh.Shots[basisIndex], blob, blobstart, blobcount);
sh.Timestamps[index] = timestamp;
sh.Flags[index] = SnapHistory <TSnap, TStatic> .FlagGold;
// ask the server to resimulate from this timestamp
// to ensure our silver guesses get updated
NetSnapper.RequestResimulate(timestamp);
return(true);
}
// queue destruction of an entity. It will be deghosted first and then
// destroyed later once enough time has passed.
public void ServerQueueFirstDestruct(byte eid)
{
FirstDestructQueue.Add(eid);
FirstDestructQueueTime.Add(CurrentTime);
NetSnapper.ServerSendDeghostFirstAll(eid);
}
public bool ServerAddEntitySecond(TSnap initalSnap, TStatic staticData, out ushort eid,
bool ghostAll = true)
{
if (!NetSnapper.ServerRequestEntitySecond(EntityType, out eid))
{
return(false); // NetSnapper says: no entity space available
}
if (SecondEntityIdToInnerId.Length <= eid)
{
ExpandSecondEntityIdMap(eid);
}
SnapHistory <TSnap, TStatic> h = SecondData.Request();
h.StaticData = staticData;
h.EntityId = eid;
h.Timestamps[0] = NetSnapper.CurrentTime;
h.Flags[0] = SnapHistory <TSnap, TStatic> .FlagGold;
h.LeadingIndex = 0;
h.Shots[0] = initalSnap;
SecondEntityIdToInnerId[eid] = h.PoolId;
if (ghostAll)
{
// ghost the new entity to all players
NetSnapper.ServerSendGhostAllSecond(eid, EntityType);
}
return(true);
}
// Simulant Helpers
public void ServerSaveSimIntoCurrent(SnapHistory <TSnap, TStatic> ent)
{
ent.Flags[ent.CurrentIndex] = SnapHistory <TSnap, TStatic> .FlagGold;
if (ent.First)
{
NetSnapper.ServerSendDeltaAllFirst((byte)ent.EntityId, EntityType);
}
else
{
NetSnapper.ServerSendDeltaAllSecond(ent.EntityId, EntityType);
}
}
private bool UnpackFull(ReArrayIdPool <SnapHistory <TSnap, TStatic> > data,
int innerid,
byte[] blob, int blobstart, int blobcount,
ushort timestamp)
{
SnapHistory <TSnap, TStatic> sh = data.Values[data.IdsToIndices[innerid]];
int index = sh.FindIndex(timestamp);
if (index < 0)
{
return(false); // out of bounds-- too far in future or past
}
Packer.UnpackFull(ref sh.Shots[index], ref sh.StaticData, blob, blobstart, blobcount);
sh.Timestamps[index] = timestamp;
sh.Flags[index] = SnapHistory <TSnap, TStatic> .FlagGold;
// ask the server to resimulate from this timestamp
// to ensure our silver guesses get updated
NetSnapper.RequestResimulate(timestamp);
return(true);
}
// Prime Logic
// Advancement occurs every tick
public void Advance(ushort currentTime)
{
CurrentTime = currentTime;
// when we advance, push every leading edge forward
for (int i = 0; i < FirstData.Count; i++)
{
SnapHistory <TSnap, TStatic> sh = FirstData.Values[i];
ushort last = sh.Timestamps[sh.LeadingIndex];
ushort next = last == ushort.MaxValue ? (ushort)0 : (ushort)(last + 1);
int startIndex = sh.LeadingIndex;
sh.LeadingIndex++;
if (sh.LeadingIndex == sh.Shots.Length)
{
sh.LeadingIndex = 0;
}
if (sh.Timestamps[sh.LeadingIndex] != next)
{
// we haven't received the next snap yet, so destroy it and
// ensure that it is empty for the simulator
sh.Timestamps[sh.LeadingIndex] = next;
sh.Flags[sh.LeadingIndex] = SnapHistory <TSnap, TStatic> .FlagEmpty;
// note: we don't need to actually call Clear on the snapshot
// since the fact that it's marked with an empty flag means
// the simulator should avoid using it.
// if the previous snapshot was deghosted,
// deghost this one as well.
if (sh.Flags[startIndex] == SnapHistory <TSnap, TStatic> .FlagDeghosted)
{
sh.Flags[sh.LeadingIndex] = SnapHistory <TSnap, TStatic> .FlagDeghosted;
}
}
}
// same logic as above but for second data
// only reason we don't use a method for this is having that many method
// calls seems like a waste.
for (int i = 0; i < SecondData.Count; i++)
{
SnapHistory <TSnap, TStatic> sh = SecondData.Values[i];
ushort last = sh.Timestamps[sh.LeadingIndex];
ushort next = last == ushort.MaxValue ? (ushort)0 : (ushort)(last + 1);
int startIndex = sh.LeadingIndex;
sh.LeadingIndex++;
if (sh.LeadingIndex == sh.Shots.Length)
{
sh.LeadingIndex = 0;
}
if (sh.Timestamps[sh.LeadingIndex] != next)
{
sh.Timestamps[sh.LeadingIndex] = next;
sh.Flags[sh.LeadingIndex] = SnapHistory <TSnap, TStatic> .FlagEmpty;
if (sh.Flags[startIndex] == SnapHistory <TSnap, TStatic> .FlagDeghosted)
{
sh.Flags[sh.LeadingIndex] = SnapHistory <TSnap, TStatic> .FlagDeghosted;
}
}
}
// now check our destruct queues
if (FirstDestructQueue.Count > 0)
{
for (int i = FirstDestructQueue.Count - 1; i >= 0; i--)
{
ushort destructTime = FirstDestructQueueTime[i];
int dist = 0;
if (currentTime < destructTime)
{
dist = (ushort.MaxValue - destructTime) + currentTime;
}
else
{
dist = currentTime - destructTime;
}
if (dist < FirstWindowLength)
{
break;
}
NetSnapper.ServerDestructFirst(FirstDestructQueue[i]);
FirstDestructQueue.RemoveAt(i);
FirstDestructQueueTime.RemoveAt(i);
}
}
if (SecondDestructQueue.Count > 0)
{
for (int i = SecondDestructQueue.Count - 1; i >= 0; i--)
{
ushort destructTime = SecondDestructQueueTime[i];
int dist = 0;
if (currentTime < destructTime)
{
dist = (ushort.MaxValue - destructTime) + currentTime;
}
else
{
dist = currentTime - destructTime;
}
if (dist < FirstWindowLength)
{
break;
}
NetSnapper.ServerDestructSecond(SecondDestructQueue[i]);
SecondDestructQueue.RemoveAt(i);
SecondDestructQueueTime.RemoveAt(i);
}
}
}
private void Rollover(SnapHistory <TSnap, TStatic> sh, int index, ushort timestamp)
{
// this whole idea has to be reworked
// I guess an issue is that one of our key assumptions
// is that the indices will always be populated with timestamps
// so we need to have some kind of rollover
// but doing the extrap action here is not good
// 1. it's not real simulated
// 2. why not do interp when available?
// one option would be to do simple extrap/interp here
// or even just copy the same snapshot over and over
// and then, when we get an older timestamp, flag the simulator
// as "needs rollback calculation" (ONLY IF WE ACTUALLY HAVE ANY
// SILVER SNAPSHOTS AHEAD OF THIS TIMESTAMP)
// then, at the end of each processing, if the simulator has
// this flag set, it will run again from whatever the oldest time
// flagged was (need to track the timestamp of each flagging as well)
// this will generate new silver snapshots, and they'll be accurate to boot.
// RE: THIS DISCUSSION
// we decided to do the "resimulate flagging" approach
// so the way this works now is that if we receive a timestamp,
// and there's unknowns in front of it,
// the system gets asked to resimulate from that timestamp
int nindex = index + 1;
ushort nextTime = timestamp;
if (nindex == sh.Shots.Length)
{
nindex = 0;
}
if (nextTime == ushort.MaxValue)
{
nextTime = 0;
}
else
{
nextTime++;
}
// we can only rollover onto silver flags
if (sh.Flags[nindex] != SnapHistory <TSnap, TStatic> .FlagSilver && sh.Flags[nindex] != SnapHistory <TSnap, TStatic> .FlagEmpty)
{
return;
}
// can only rollover onto subsequent timestamps
if (sh.Timestamps[nindex] != nextTime)
{
return;
}
// if we get here, then we hit a silver or an empty that must be filled out
// tell the snap system to resimulate
NetSnapper.RequestResimulate(timestamp);
// VVVV OLD VVVV
/*
* // flags need to act a certain way to allow us to have
* // snapshots roll over when no changes are needed
* // e.g.:
* // 1 = from server (GOLD STANDARD)
* // 2 = roll over, this occurs when no snapshot is received
* // we assume shot is unchanged and use it again for next
* // timestamp
* // now imagine we have some snaps:
* // aaaaabb
* // 1222212
* // ^ and here we receive a new snapshot c
* // we SCROLL FORWARD and replace all 2s with the new snapshot:
* // aacccbb
* // 1212212
* // this way we can let client continue to scroll forward but
* // also correct itself properly
* int nindex = index + 1;
* ushort nextTime = timestamp;
* int rolls = 1;
* while (true)
* {
* if (nindex == sh.Shots.Length)
* nindex = 0;
*
* if (nextTime == ushort.MaxValue)
* nextTime = 0;
* else
* nextTime++;
*
* // we can only rollover onto silver flags
* if (sh.Flags[nindex] != SnapHistory<T>.FlagSilver && sh.Flags[nindex] != SnapHistory<T>.FlagEmpty)
* break;
*
* // can only rollover onto subsequent timestamps
* if (sh.Timestamps[nindex] != nextTime)
* break;
*
* // now we're ready to roll
* ExtrapolateAction(ref sh.Shots[nindex], sh.Shots[index], TickMS * rolls);
* rolls++;
*
* nindex++;
* }*/
}
