private GameObject InitGrid(Transform parent)
{
GameObject go = new GameObject();
go.name = "Grid";
go.transform.SetParent(parent, false);
go.SetActive(showGrid);
int width = source.texture.width + 1;
int height = source.texture.height + 1;
// set dots texture
Texture2D texture = new Texture2D(width, height, TextureFormat.ARGB32, false);
texture.filterMode = FilterMode.Point;
DrawUtils.ClearTexture(texture);
DrawUtils.DrawGrid(texture, tileWidth, tileHeight, new Color(0, 0, 0, 0.1f));
texture.Apply();
// create sprite
SpriteRenderer spriteRenderer = go.AddComponent <SpriteRenderer>();
spriteRenderer.sortingOrder = 0;
Sprite sprite = Sprite.Create(texture, new Rect(0, 0, width, height), new Vector2(0f, 1f), 1);
sprite.name = "DotsSprite";
spriteRenderer.sprite = sprite;
return(go);
}