private void HandleCollisions()
{
IsOnTheGround = false;
WalkingOnIce = false;
TileField tiles = GameWorld.Find("tiles") as TileField;
int x_floor = (int)position.X / tiles.CellWidth;
int y_floor = (int)position.Y / tiles.CellHeight;
for (int y = y_floor - 2; y <= y_floor + 1; ++y)
{
for (int x = x_floor - 1; x <= x_floor + 1; ++x)
{
TileType tileType = tiles.GetTileType(x, y);
if (tileType == TileType.Background)
{
continue;
}
Tile currentTile = tiles.findAt(x, y) as Tile;
Rectangle tileBounds = new Rectangle(x * tiles.CellWidth, y * tiles.CellHeight,
tiles.CellWidth, tiles.CellHeight);
Rectangle boundingBox = this.BoundingBox;
boundingBox.Height += 1;
if (((currentTile != null && !currentTile.CollidesWith(this)) || currentTile == null) && !tileBounds.Intersects(boundingBox))
{
continue;
}
Vector2 depth = Collision.CalculateIntersectionDepth(boundingBox, tileBounds);
if (Math.Abs(depth.X) < Math.Abs(depth.Y))
{
if (tileType == TileType.Normal)
{
position.X += depth.X;
}
continue;
}
if (PreviousYPosition <= tileBounds.Top && tileType != TileType.Background)
{
IsOnTheGround = true;
velocity.Y = 0;
if (currentTile != null)
{
WalkingOnIce = WalkingOnIce || currentTile.Ice;
}
}
if (tileType == TileType.Normal || IsOnTheGround)
{
position.Y += depth.Y + 1;
}
}
}
position = new Vector2((float)Math.Floor(position.X), (float)Math.Floor(position.Y));
PreviousYPosition = position.Y;
}
