I cannot add rigidbody to my game object otherwise the SPT_PathDrawing plugin would not work. Right now I am having this object can pass through wall problem which I spend few days and still could not make it work. The SPT_PathDrawing plugin requires to add an empty object with rigidbody and collider as child to my game object. It wont work if I set a rigidbody to parent. Is there anyway I can set my game object to get rigidbody from child or avoid wall without rigidbody?