public void Remove(Collider collider)
{
if (!ColliderList.Contains(collider))
{
return;
}
/*
* foreach (Cell cell in GetCells(collider.WorldTransform))
* {
* if (cell.Colliders.Contains(collider))
* {
* cell.Colliders.Remove(collider);
* }
* }
*/
// OR
ForEach((cell) => { if (cell.Colliders.Contains(collider))
{
cell.Colliders.Remove(collider);
}
});
ComputedCollision.Remove(collider);
ColliderList.Remove(collider);
}
public void Reset()
{
ForEach((cell) => cell.Colliders.Clear());
ComputedCollision.Clear();
ColliderList.Clear();
}
public IEnumerable <Collider> GetCollisions(Collider collider)
{
if (!ComputedCollision.ContainsKey(collider))
{
return(null);
}
return(ComputedCollision[collider]);
}
public bool HasCollision(Collider collider)
{
if (ComputedCollision.ContainsKey(collider) && ComputedCollision[collider].Count > 0)
{
return(true);
}
return(false);
}
public void ComputeCollision(Collider collider)
{
if (!ComputedCollision.ContainsKey(collider) || !collider.Collidable)
{
return;
}
Pair <Collider> test_pair = new Pair <Collider>(collider, null);
IEnumerable <Cell> to_test;
ColliderPhysics colliderPhy = null;
Vector2 velocity = Vector2.Zero;
if (collider is ColliderPhysics)
{
colliderPhy = collider as ColliderPhysics;
velocity = colliderPhy.Velocity * GameCore.DeltaTime;
to_test = GetCells(GetTransformVelocity(colliderPhy.WorldTransform, velocity));
}
else
{
to_test = GetCells(collider.WorldTransform);
}
foreach (Cell cell in to_test)
{
foreach (Collider other in cell.Colliders)
{
test_pair.second = other;
if (collider == other || !other.Collidable || CollisionPair.Contains(test_pair))
{
continue;
}
if (colliderPhy.IsNotNull())
{
if (SweptAABB(colliderPhy, other, velocity, out Vector3 normal))
{
ComputedCollision[collider].Add(other);
ComputedCollision[other].Add(collider);
CollisionPair.Add(new Pair <Collider>(collider, other, normal));
}
}
else if (collider.WorldTransform.IntersectBox(other.WorldTransform))
{
ComputedCollision[collider].Add(other);
ComputedCollision[other].Add(collider);
CollisionPair.Add(new Pair <Collider>(collider, other));
}
}
}
}
