///<summary>
/// Updates the time of impact for the pair.
///</summary>
///<param name="requester">Collidable requesting the update.</param>
///<param name="dt">Timestep duration.</param>
public override void UpdateTimeOfImpact(Collidable requester, float dt)
{
timeOfImpact = 1;
foreach (CollidablePairHandler pair in subPairs.Values)
//The system uses the identity of the requester to determine if it needs to do handle the TOI calculation.
//Use the child pair's own entries as a proxy.
{
if (MotionSettings.CCDFilter(pair))
{
if (BroadPhaseOverlap.entryA == requester)
{
pair.UpdateTimeOfImpact((Collidable)pair.BroadPhaseOverlap.entryA, dt);
}
else
{
pair.UpdateTimeOfImpact((Collidable)pair.BroadPhaseOverlap.entryB, dt);
}
if (pair.timeOfImpact < timeOfImpact)
{
timeOfImpact = pair.timeOfImpact;
}
}
}
}
void ICCDPositionUpdateable.UpdateTimesOfImpact(Fix64 dt)
{
//I am a continuous object. If I am in a pair with another object, even if I am inactive,
//I must order the pairs to compute a time of impact.
//The pair method works in such a way that, when this method is run asynchronously, there will be no race conditions.
for (int i = 0; i < collisionInformation.pairs.Count; i++)
{
//Only perform CCD if we're either supposed to test against no solver pairs or if this isn't a no solver pair.
if (MotionSettings.CCDFilter(collisionInformation.pairs.Elements[i]))
{
collisionInformation.pairs.Elements[i].UpdateTimeOfImpact(collisionInformation, dt);
}
}
}