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BulletSim: fix small bug where everything looked like it was colliding 

before the first simulator step.
cpu-performance
Robert Adams 2013-07-17 10:19:44 -07:00
parent 894554faf6
commit 2c8bf4aaa6
2 changed files with 10 additions and 6 deletions
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13
OpenSim/Region/Physics/BulletSPlugin/BSPhysObject.cs
View File

@ -103,9 +103,10 @@ public abstract class BSPhysObject : PhysicsActor
CollisionsLastTickStep = -1; CollisionsLastTickStep = -1;
SubscribedEventsMs = 0; SubscribedEventsMs = 0;
CollidingStep = 0; // Crazy values that will never be true
CollidingGroundStep = 0; CollidingStep = BSScene.NotASimulationStep;
CollisionAccumulation = 0; CollidingGroundStep = BSScene.NotASimulationStep;
CollisionAccumulation = BSScene.NotASimulationStep;
ColliderIsMoving = false; ColliderIsMoving = false;
CollisionScore = 0; CollisionScore = 0;
@ -349,7 +350,7 @@ public abstract class BSPhysObject : PhysicsActor
if (value) if (value)
CollidingStep = PhysScene.SimulationStep; CollidingStep = PhysScene.SimulationStep;
else else
CollidingStep = 0; CollidingStep = BSScene.NotASimulationStep;
} }
} }
public override bool CollidingGround { public override bool CollidingGround {
@ -359,7 +360,7 @@ public abstract class BSPhysObject : PhysicsActor
if (value) if (value)
CollidingGroundStep = PhysScene.SimulationStep; CollidingGroundStep = PhysScene.SimulationStep;
else else
CollidingGroundStep = 0; CollidingGroundStep = BSScene.NotASimulationStep;
} }
} }
public override bool CollidingObj { public override bool CollidingObj {
@ -368,7 +369,7 @@ public abstract class BSPhysObject : PhysicsActor
if (value) if (value)
CollidingObjectStep = PhysScene.SimulationStep; CollidingObjectStep = PhysScene.SimulationStep;
else else
CollidingObjectStep = 0; CollidingObjectStep = BSScene.NotASimulationStep;
} }
} }

3
OpenSim/Region/Physics/BulletSPlugin/BSScene.cs
View File

@ -97,6 +97,9 @@ public sealed class BSScene : PhysicsScene, IPhysicsParameters
internal long m_simulationStep = 0; // The current simulation step. internal long m_simulationStep = 0; // The current simulation step.
public long SimulationStep { get { return m_simulationStep; } } public long SimulationStep { get { return m_simulationStep; } }
// A number to use for SimulationStep that is probably not any step value
// Used by the collision code (which remembers the step when a collision happens) to remember not any simulation step.
public static long NotASimulationStep = -1234;
internal float LastTimeStep { get; private set; } // The simulation time from the last invocation of Simulate() internal float LastTimeStep { get; private set; } // The simulation time from the last invocation of Simulate()