## Handle Collision

Study and study how to handle collision detection, now finally i have took the right path!

This is a preliminary code for detect the collision between Kid  and  tiles ("floor" ,"wall") :

// Reset flag to search for ground collision.
isOnGround = false;

// Get the player's bounding rectangle and find neighboring tiles.
Rectangle bounds = BoundingRectangle;
//Find how many tiles are near on the left
int leftTile = (int)Math.Floor((float)bounds.Left / Tile.Width);
int rightTile = (int)Math.Ceiling(((float)bounds.Right / Tile.Width)) - 1; //tile dal bordo sx dello schermo al bordo dx del rettangolo sprite
int topTile = (int)Math.Floor((float)bounds.Top / Tile.Height);
int bottomTile = (int)Math.Ceiling(((float)bounds.Bottom / Tile.Height)) - 1;

// For each potentially colliding Tile,
for (int y = topTile; y <= bottomTile; ++y)
{
for (int x = leftTile; x <= rightTile; ++x)
{
TileCollision tileCollision = room.GetCollision(x, y);
TileType tileType = room.GetType(x, y);

//interseco ?
Rectangle tileBounds = room.GetBounds(x, y);
Vector2 depth = RectangleExtensions.GetIntersectionDepth(bounds, tileBounds);

if (depth == Vector2.Zero)
{
continue;
}
if (tileCollision == TileCollision.Passable)
{
continue;
}

//Verifico se mi trovo sul terreno
if (IsGround(bounds.Bottom, tileBounds.Bottom, Tile.Ground) == false)
{
continue;
}
isOnGround = true;

switch (tileType)
{
case TileType.Wall:
Position = new Vector2(Position.X + depth.X, Position.Y);
bounds = BoundingRectangle;
break;

default:
Position = new Vector2(Position.X, tileBounds.Bottom + Tile.Ground);
bounds = BoundingRectangle;
break;
}

}
}
//???
previousBottom = bounds.Bottom;