private void GrowBodyToward(Vector3 direction)
{
var addTail = bodyTiles.Count == 0;
var tileType = new BodyTileType(snake.CurrentFacing, direction, addTail);
var tile = bodyTileSource.GetTile(tileType);
var tileObject = tile.Tile;
tileObject.transform.position = gameObject.transform.position;
bodyTiles.AddFirst(tile);
snake.Grow(direction);
}
private void ShrinkTail()
{
snake.Shrink();
// remove the tail
var lastTile = bodyTiles.Last.Value;
bodyTiles.RemoveLast();
bodyTileSource.ReturnTile(lastTile);
// If there is a body piece left, replace it with a new tail
lastTile = bodyTiles.Last.Value;
bodyTiles.RemoveLast();
bodyTileSource.ReturnTile(lastTile);
var tailType = new BodyTileType(snake.CurrentFacing, snake.TailFacing, true);
var newTailTile = bodyTileSource.GetTile(tailType);
newTailTile.Tile.transform.position = lastTile.Tile.transform.position;
bodyTiles.AddLast(newTailTile);
}
public BodyTile GetTile(BodyTileType bodyTileType)
{
string name;
if (bodyTileType.IsTail)
{
name = string.Format("SnakeTail{0}", GetDirectionString(bodyTileType.ToDirection));
}
else if (bodyTileType.FromDirection == bodyTileType.ToDirection)
{
name = string.Format("SnakeSegment{0}", GetDirectionString(bodyTileType.ToDirection));
}
else
{
name = string.Format("SnakeBend{0}{1}", GetDirectionString(bodyTileType.FromDirection), GetDirectionString(bodyTileType.ToDirection));
}
var preFab = Resources.Load <GameObject>(name);
var clonedTile = Instantiate(preFab);
return(new BodyTile(clonedTile, bodyTileType));
// TODO: pool tiles
// TODO: enable
}
public BodyTile(GameObject tile, BodyTileType type)
{
Tile = tile;
Type = type;
}