public static VectorRectangle CalculateIntersect(VectorRectangle first, VectorRectangle second)
{
VectorRectangle intersect = new VectorRectangle();
if (first.Intersects(second))
{
float intersectLeft = Math.Max(first.Left, second.Left);
float intersectRight = Math.Min(first.Right, second.Right);
float intersectTop = Math.Max(first.Top, second.Top);
float intersectBottom = Math.Min(first.Bottom, second.Bottom);
intersect.Position = new Vector2(intersectLeft, intersectTop);
intersect.Size = new Vector2(intersectRight - intersectLeft, intersectBottom - intersectTop);
}
return intersect;
}
public List<PhysicalObject2D> CalculateCollisions(VectorRectangle firstRectangle)
{
List<PhysicalObject2D> collisions = new List<PhysicalObject2D>();
foreach (CollisionRectangle secondRectangle in _allRectangles)
{
if (!secondRectangle.Object.IsMovable() && firstRectangle.Intersects(secondRectangle))
{
if (secondRectangle.Children != null)
collisions.AddRange(secondRectangle.Children.CalculateCollisions(firstRectangle));
else if (secondRectangle.Object != null)
collisions.Add(secondRectangle.Object);
// TODO checking sprite make use of CollisionDictionary
}
}
return collisions;
}