public int FindLastSideTouched(Map map, Projectile projectile, Point currentPosition, int currentFinalSide, ref Vector2 intersectingPoint)
{
Point[] directions = new Point[] { new Point(0, -1), new Point(1, 0), new Point(0, 1), new Point(-1, 0) };
int finalSide = currentFinalSide;
Vector2 newPosition = projectile.position + (projectile.velocity * 2);
//if the new position is not the same as the last position and still in the tileMatrix
if (currentPosition.X >= 0 && currentPosition.Y >= 0 && currentPosition.X < map.tiles.Length && currentPosition.Y < map.tiles[0].Length)
{
Tile tile = map.GetTile(currentPosition);
//if the tile is a collidable tile then check
if (tile.collidable)
{
//check to see if this tile has a last side touched
tile.lastSideTouched = Core.Collision.LastSideTouched(tile.GetBounds(), projectile.safePosition, newPosition);
int actualSide = tile.GetSingleLastSideTouched();
if (actualSide > -1)
{
//reset projectile position to intersection point of the tile
intersectingPoint = tile.lastSideTouched[actualSide];
finalSide = FindLastSideTouched(map, projectile, new Point(currentPosition.X + directions[actualSide].X, currentPosition.Y + directions[actualSide].Y), actualSide, ref intersectingPoint);
}
tile.lastSideTouched = new Vector2[4] { new Vector2(-1, -1), new Vector2(-1, -1), new Vector2(-1, -1), new Vector2(-1, -1) };
}
}
return finalSide;
}
private int CheckProjectileCollisions(CollidableObject sprite, Projectile projectile)
{
int score = 0;
if (projectile.alive)
score += projectile.CheckCollision(sprite);
return score;
}