/// <summary>
/// Performs as many timesteps as necessary to get as close to the elapsed time as possible.
/// </summary>
/// <param name="dt">Elapsed time from the previous frame.</param>
public void Update(float dt)
{
TimeStepSettings.AccumulatedTime += dt;
for (int i = 0; i < TimeStepSettings.MaximumTimeStepsPerFrame; i++)
{
if (TimeStepSettings.AccumulatedTime >= TimeStepSettings.TimeStepDuration)
{
TimeStepSettings.AccumulatedTime -= TimeStepSettings.TimeStepDuration;
DoTimeStep();
}
else
{
break;
}
}
BufferedStates.InterpolatedStates.BlendAmount = TimeStepSettings.AccumulatedTime / TimeStepSettings.TimeStepDuration;
BufferedStates.InterpolatedStates.Update();
EndOfFrameUpdateables.Update();
}
///<summary>
/// Performs a single timestep.
///</summary>
public void Update()
{
DoTimeStep();
EndOfFrameUpdateables.Update();
}
///<summary>
/// Removes a space object from the simulation.
///</summary>
///<param name="spaceObject">Space object to remove.</param>
public void Remove(ISpaceObject spaceObject)
{
if (spaceObject.Space != this)
{
throw new ArgumentException("The object does not belong to this space; cannot remove it.");
}
SimulationIslandMember simulationIslandMember = spaceObject as SimulationIslandMember;
if (simulationIslandMember != null)
{
DeactivationManager.Remove(simulationIslandMember);
}
ISimulationIslandMemberOwner simulationIslandMemberOwner = spaceObject as ISimulationIslandMemberOwner;
if (simulationIslandMemberOwner != null)
{
DeactivationManager.Remove(simulationIslandMemberOwner.ActivityInformation);
}
//Go through each stage, removing the space object from it if necessary.
IForceUpdateable velocityUpdateable = spaceObject as IForceUpdateable;
if (velocityUpdateable != null)
{
ForceUpdater.Remove(velocityUpdateable);
}
MobileCollidable boundingBoxUpdateable = spaceObject as MobileCollidable;
if (boundingBoxUpdateable != null)
{
BoundingBoxUpdater.Remove(boundingBoxUpdateable);
}
BroadPhaseEntry broadPhaseEntry = spaceObject as BroadPhaseEntry;
if (broadPhaseEntry != null)
{
BroadPhase.Remove(broadPhaseEntry);
}
//Entites own collision proxies, but are not entries themselves.
IBroadPhaseEntryOwner broadPhaseEntryOwner = spaceObject as IBroadPhaseEntryOwner;
if (broadPhaseEntryOwner != null)
{
BroadPhase.Remove(broadPhaseEntryOwner.Entry);
boundingBoxUpdateable = broadPhaseEntryOwner.Entry as MobileCollidable;
if (boundingBoxUpdateable != null)
{
BoundingBoxUpdater.Remove(boundingBoxUpdateable);
}
}
SolverUpdateable solverUpdateable = spaceObject as SolverUpdateable;
if (solverUpdateable != null)
{
Solver.Remove(solverUpdateable);
}
IPositionUpdateable integrable = spaceObject as IPositionUpdateable;
if (integrable != null)
{
PositionUpdater.Remove(integrable);
}
Entity entity = spaceObject as Entity;
if (entity != null)
{
BufferedStates.Remove(entity);
}
IDeferredEventCreator deferredEventCreator = spaceObject as IDeferredEventCreator;
if (deferredEventCreator != null)
{
DeferredEventDispatcher.RemoveEventCreator(deferredEventCreator);
}
IDeferredEventCreatorOwner deferredEventCreatorOwner = spaceObject as IDeferredEventCreatorOwner;
if (deferredEventCreatorOwner != null)
{
DeferredEventDispatcher.RemoveEventCreator(deferredEventCreatorOwner.EventCreator);
}
//Updateable stages.
IDuringForcesUpdateable duringForcesUpdateable = spaceObject as IDuringForcesUpdateable;
if (duringForcesUpdateable != null)
{
DuringForcesUpdateables.Remove(duringForcesUpdateable);
}
IBeforeNarrowPhaseUpdateable beforeNarrowPhaseUpdateable = spaceObject as IBeforeNarrowPhaseUpdateable;
if (beforeNarrowPhaseUpdateable != null)
{
BeforeNarrowPhaseUpdateables.Remove(beforeNarrowPhaseUpdateable);
}
IBeforeSolverUpdateable beforeSolverUpdateable = spaceObject as IBeforeSolverUpdateable;
if (beforeSolverUpdateable != null)
{
BeforeSolverUpdateables.Remove(beforeSolverUpdateable);
}
IBeforePositionUpdateUpdateable beforePositionUpdateUpdateable = spaceObject as IBeforePositionUpdateUpdateable;
if (beforePositionUpdateUpdateable != null)
{
BeforePositionUpdateUpdateables.Remove(beforePositionUpdateUpdateable);
}
IEndOfTimeStepUpdateable endOfStepUpdateable = spaceObject as IEndOfTimeStepUpdateable;
if (endOfStepUpdateable != null)
{
EndOfTimeStepUpdateables.Remove(endOfStepUpdateable);
}
IEndOfFrameUpdateable endOfFrameUpdateable = spaceObject as IEndOfFrameUpdateable;
if (endOfFrameUpdateable != null)
{
EndOfFrameUpdateables.Remove(endOfFrameUpdateable);
}
spaceObject.Space = null;
spaceObject.OnRemovalFromSpace(this);
}
