MegaMan.LevelEditor.RectangleTool.Release C# (CSharp) Метод

        public void Release(ScreenDrawingSurface surface)
        {
            held = false;

            var g = surface.GetToolLayerGraphics();
            if (g != null)
            {
                g.Clear(Color.Transparent);
                surface.ReturnToolLayerGraphics(g);
            }

            int x_start = Math.Min(tx1, tx2);
            int x_end = Math.Max(tx1, tx2) - 1;
            int y_start = Math.Min(ty1, ty2);
            int y_end = Math.Max(ty1, ty2) - 1;

            startTiles = new int?[surface.Screen.Width, surface.Screen.Height];
            endTiles = new int?[surface.Screen.Width, surface.Screen.Height];

            for (int y = y_start; y <= y_end; y += brush.Height)
            {
                for (int x = x_start; x <= x_end; x += brush.Width)
                {
                    Draw(surface, x, y);
                }
            }

            var changes = new List<TileChange>();

            for (int y = 0; y < surface.Screen.Height; y++)
            {
                for (int x = 0; x < surface.Screen.Width; x++)
                {
                    if (startTiles[x, y].HasValue && endTiles[x, y].HasValue && startTiles[x, y].Value != endTiles[x, y].Value)
                    {
                        changes.Add(new TileChange(x, y, startTiles[x, y].Value, endTiles[x, y].Value, surface));
                    }
                }
            }

            if (changes.Count > 0) surface.EditedWithAction(new DrawAction("Rectangle", changes, surface));
        }