public List <ViewGeometry> OnCheckCollision()
{
List <ViewGeometry> collisions = new List <ViewGeometry>();
foreach (var collision in CollisionMap.Where(p => Name != p.Name).ToDictionary(p => p.Geometry, o => o))
{
bool isCollision = CollisionManager.CalculateCollision(Geometry, collision.Key);
if (isCollision)
{
collisions.Add(collision.Value);
}
}
foreach (var item in collisions)
{
if (!CurrentCollisions.Any(p => p == item))
{
CurrentCollisions.Add(item);
}
if (!item.CurrentCollisions.Any(p => p == this))
{
item.CurrentCollisions.Add(this);
}
if (item.CheckCollision != null)
{
item.CheckCollision(item.CurrentCollisions);
}
}
foreach (var item in PreviousCollisions)
{
if (!collisions.Any(p => p == item))
{
CurrentCollisions.Remove(item);
item.CurrentCollisions.Remove(this);
if (item.CheckCollision != null)
{
item.CheckCollision(item.CurrentCollisions);
}
}
}
PreviousCollisions = CurrentCollisions.ToList();
if (CheckCollision != null)
{
CheckCollision(CurrentCollisions);
}
return(collisions);
}
