public static void DrawPoint(Coo2D position, float width, Color color)
{
GameObject line = new GameObject("Point_" + position.ToString());
LineRenderer lineRenderer = line.AddComponent <LineRenderer>();
lineRenderer.material = new Material(Shader.Find("Unlit/Color"));
lineRenderer.material.color = color;
lineRenderer.positionCount = 2;
lineRenderer.SetPosition(0, new Vector3(position.x - width / 3.0f, position.y - width / 3.0f));
lineRenderer.SetPosition(1, new Vector3(position.x + width / 3.0f, position.y + width / 3.0f));
lineRenderer.startWidth = width;
lineRenderer.endWidth = width;
}
