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network traffic reduction - decrease update frequency for moving avatars when velocity is unchanged

bulletsim
dahlia 2011-04-26 16:22:44 -07:00
parent 1505fbb647
commit 16f6f55f2d
1 changed files with 24 additions and 10 deletions
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34
OpenSim/Region/Framework/Scenes/ScenePresence.cs
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@ -2340,12 +2340,14 @@ namespace OpenSim.Region.Framework.Scenes
#region Update Client(s)
/// <summary>
/// Sends a location update to the client connected to this scenePresence
/// </summary>
/// <param name="remoteClient"></param>
public void SendTerseUpdateToClient(IClientAPI remoteClient)
{
// If the client is inactive, it's getting its updates from another
// server.
if (remoteClient.IsActive)
@ -2358,8 +2360,8 @@ namespace OpenSim.Region.Framework.Scenes
//m_log.DebugFormat("[SCENEPRESENCE]: TerseUpdate: Pos={0} Rot={1} Vel={2}", m_pos, m_bodyRot, m_velocity);
remoteClient.SendPrimUpdate(
this,
PrimUpdateFlags.Position | PrimUpdateFlags.Rotation | PrimUpdateFlags.Velocity
this,
PrimUpdateFlags.Position | PrimUpdateFlags.Rotation | PrimUpdateFlags.Velocity
| PrimUpdateFlags.Acceleration | PrimUpdateFlags.AngularVelocity);
m_scene.StatsReporter.AddAgentTime(Util.EnvironmentTickCountSubtract(m_perfMonMS));
@ -2367,16 +2369,31 @@ namespace OpenSim.Region.Framework.Scenes
}
}
// vars to support reduced update frequency when velocity is unchanged
private Vector3 lastVelocitySentToAllClients = Vector3.Zero;
private int lastTerseUpdateToAllClientsTick = Util.EnvironmentTickCount();
/// <summary>
/// Send a location/velocity/accelleration update to all agents in scene
/// </summary>
public void SendTerseUpdateToAllClients()
{
m_perfMonMS = Util.EnvironmentTickCount();
m_scene.ForEachClient(SendTerseUpdateToClient);
int currentTick = Util.EnvironmentTickCount();
m_scene.StatsReporter.AddAgentTime(Util.EnvironmentTickCountSubtract(m_perfMonMS));
// decrease update frequency when avatar is moving but velocity is not changing
if (m_velocity.Length() < 0.01f
|| Vector3.Distance(lastVelocitySentToAllClients, m_velocity) > 0.01f
|| currentTick - lastTerseUpdateToAllClientsTick > 1500)
{
m_perfMonMS = currentTick;
lastVelocitySentToAllClients = m_velocity;
lastTerseUpdateToAllClientsTick = currentTick;
m_scene.ForEachClient(SendTerseUpdateToClient);
m_scene.StatsReporter.AddAgentTime(Util.EnvironmentTickCountSubtract(m_perfMonMS));
}
}
public void SendCoarseLocations(List<Vector3> coarseLocations, List<UUID> avatarUUIDs)
@ -3268,10 +3285,7 @@ namespace OpenSim.Region.Framework.Scenes
m_updateflag = true;
// The magic constant 0.95f seems to make walking feel less jerky,
// probably because it hackishly accounts for the overall latency of
// these Velocity updates -- Diva
Velocity = force * .95F;
Velocity = force;
m_forceToApply = null;
}