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Using update IDs instead of timestamps to correct client-side movement predictions

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This commit is contained in:
Regalis
2016-10-19 00:56:24 +03:00
parent de203cc424
commit 51a2bf097d
2 changed files with 32 additions and 43 deletions
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Subsurface/Source/Characters/Character.cs
+28 -19
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@@ -17,14 +17,27 @@ namespace Barotrauma
struct PosInfo
{
public readonly Vector2 Position;
public Direction Direction;
public readonly Direction Direction;
public readonly float Timestamp;
public readonly UInt32 ID;
public PosInfo(Vector2 pos, Direction dir, float time)
{
Position = pos;
Direction = dir;
Timestamp = time;
ID = 0;
}
public PosInfo(Vector2 pos, Direction dir, UInt32 ID)
{
Position = pos;
Direction = dir;
this.ID = ID;
Timestamp = 0.0f;
}
}
@@ -1132,19 +1145,7 @@ namespace Barotrauma
}
cam.OffsetAmount = MathHelper.Lerp(cam.OffsetAmount, (Submarine == null ? 400.0f : 250.0f)+pressureEffect, 0.05f);
}
if (GameMain.NetworkMember != null && GameMain.NetworkMember.Character == this)
{
if (memLocalPos.Count == 0 || NetTime.Now > memLocalPos.Last().Timestamp + 0.1f)
{
memLocalPos.Add(
new PosInfo(
SimPosition,
AnimController.Dir > 0.0f ? Direction.Right : Direction.Left,
(float)NetTime.Now));
}
}
cursorPosition = cam.ScreenToWorld(PlayerInput.MousePosition);
if (AnimController.CurrentHull != null && AnimController.CurrentHull.Submarine != null)
{
@@ -1310,6 +1311,8 @@ namespace Barotrauma
{
if (GameMain.Client != null)
{
memLocalPos.Add(new PosInfo(SimPosition, AnimController.TargetDir, LastNetworkUpdateID));
byte newInput = 0;
newInput |= IsKeyDown(InputType.Left) ? (byte)0x1 : (byte)0;
newInput |= IsKeyDown(InputType.Right) ? (byte)0x2 : (byte)0;
@@ -1842,6 +1845,9 @@ namespace Barotrauma
{
msg.Write(ID);
//todo: only write this if sending for the client who's controlling the character?
msg.Write((UInt32)(LastNetworkUpdateID - memInput.Count));
msg.Write(AnimController.Dir > 0.0f);
msg.Write(SimPosition.X);
@@ -1857,7 +1863,7 @@ namespace Barotrauma
{
//skip through the rest of the message
//todo: a better way to skip through the message?
msg.Position += 1 + 32 + 32;
msg.Position += 32 + 1 + 32 + 32;
}
else
{
@@ -1867,14 +1873,17 @@ namespace Barotrauma
public virtual void ClientRead(NetIncomingMessage msg, float sendingTime)
{
UInt32 networkUpdateID = msg.ReadUInt32();
//float sendingTime = msg.ReadSingle();
bool facingRight = msg.ReadBoolean();
Vector2 pos = new Vector2(msg.ReadFloat(), msg.ReadFloat());
var posInfo = new PosInfo(
pos,
facingRight ? Direction.Right : Direction.Left,
sendingTime);
var posInfo =
GameMain.NetworkMember.Character == this ?
new PosInfo(pos, facingRight ? Direction.Right : Direction.Left, networkUpdateID) :
new PosInfo(pos, facingRight ? Direction.Right : Direction.Left, sendingTime);
int index = 0;
while (index < memPos.Count && posInfo.Timestamp > memPos[index].Timestamp)