public virtual void HandlePossibleIntersections(float dt, List <ICollidableBody> collidables)
{
if (collidables != null)
{
PhysicsState before = null;
RemoveUnEffectable(collidables);
int length = ray2DEffects.Count;
for (int pos = 0; pos < length; ++pos)
{
RayICollidableBodyPair pair = GetIntersection(ray2DEffects[pos].RaySegment, collidables);
if (pair != null && pair.BestIntersectInfo.Intersects)
{
if (pair.ICollidableBody.CollisionState.GenerateRayEvents)
{
before = new PhysicsState(pair.ICollidableBody.Current);
}
ray2DEffects[pos].ApplyEffect(dt, pair);
if (pair.ICollidableBody.CollisionState.GenerateRayEvents)
{
pair.ICollidableBody.CollisionState.InterferenceInfos.Add(
new InterferenceInfo(new RayCollidableInterferenceInfo(this,
pair.RaySegment2D,
pair.BestIntersectInfo,
before,
new PhysicsState(pair.ICollidableBody.Current),
pair.ICollidableBody)));
}
}
}
}
}
protected RayICollidableBodyPair GetIntersection(RaySegment2D raySegment, List <ICollidableBody> collidables)
{
int collidablesCount = collidables.Count;
if (collidablesCount == 0)
{
return(null);
}
float Smallestdistance = raySegment.Length;
RayICollidableBodyPair returnvalue = null;
RayICollidableBodyPair pair;
for (int pos = 0; pos < collidablesCount; ++pos)
{
pair = new RayICollidableBodyPair(raySegment, collidables[pos]);
if (pair.TestIntersection())
{
if (pair.BestIntersectInfo != null && Smallestdistance > pair.BestIntersectInfo.DistanceFromOrigin)
{
Smallestdistance = pair.BestIntersectInfo.DistanceFromOrigin;
returnvalue = pair;
}
}
}
return(returnvalue);
}
public override void ApplyEffect(float dt, RayICollidableBodyPair pair)
{
displayLength = pair.BestIntersectInfo.DistanceFromOrigin;
effectApplied = true;
if ((pair.ICollidableBody.Flags & ignoreFlags) == BodyFlags.None)
{
Vector2D point = raySegment.GetPoint(pair.BestIntersectInfo) - pair.ICollidableBody.Current.Position.Linear;
float effectImpulse = impulse * dt;
pair.ICollidableBody.ApplyImpulse(point, effectImpulse * raySegment.Direction);
}
}
