// 画矩形
public void DrawTileRect(BlockTile tile)
{
if (tile.drawRect == null)
{
MyDrawRect drawRect = GetFreeDrawRectObj();
drawRect.SetGreenRectInfo(tile.size);
drawRect.transform.parent = tile.img.transform;
drawRect.transform.localPosition = new Vector3(0, -tile.size.y / 2);
drawRect.transform.localScale = Vector3.one;
drawRect.SetRectColor(new Color(0, 1, 0, 0.2f));
tile.drawRect = drawRect;
}
}
// 回收池
MyDrawRect GetFreeDrawRectObj()
{
MyDrawRect drawRect = null;
if (drawPool.Count > 0)
{
drawRect = drawPool[drawPool.Count - 1];
drawPool.RemoveAt(drawPool.Count - 1);
}
else
{
GameObject obj = new GameObject("draw");
drawRect = obj.AddComponent <MyDrawRect>();
}
return(drawRect);
}
// 加入回收
void RecycleDrawRectObj(MyDrawRect rect)
{
drawPool.Add(rect);
rect.transform.SetParent(drawRectPoolObj.transform);
}