Trying to make my Rigidbody move towards mouse position on the screen

Hey! I'm trying to make my Rigidbody move (using AddForce) towards the mouse cursor position on the screen. Here is the code I've got at the moment;

Code (CSharp):

1. if (Input.GetMouseButton(0))
2.                 {
3.                     var worldMousePosition = Camera.main.ScreenToWorldPoint(new Vector3(Input.mousePosition.x, 0f, Input.mousePosition.z));
4.  
5.                     var direction = worldMousePosition - transform.position;
6.  
7.                     rb.AddForce((direction).normalized * 150 * Time.deltaTime);
8.                     Debug.Log("Direction: " + direction);
9.                 }

In my head, this should work just fine. It sets the mouse position Vector3 to the correct point in the world space relative to where it is on the screen (it is a top down game, therefor the Y-position is set to 0) then subtracts the player's position Vector with the mouse position and then applies that Vector as a force on the player object. At least, that's what it should do. Right now the player won't move at all. What am I doing wrong?

Thanks in advance!

 

Your force is probably not substantial enough. 150 * a normal 60fps deltaTime is ~2.4. Try cranking it up a notch.

 

Alright I made some changes and increased the force and now it actually moves. But it can only move up and down and won't move to the mouse position at all. This is the new code I've got;

Code (CSharp):

1. if (Input.GetMouseButton(0))
2.                 {
3.                     var mousePos = Input.mousePosition;
4.                     mousePos = Camera.main.ScreenToWorldPoint(mousePos);
5.  
6.                     var mouseDir = mousePos - gameObject.transform.position;
7.                     mouseDir = new Vector3(mouseDir.x, 0f, mouseDir.z);
8.                     mouseDir = mouseDir.normalized;
9.  
10.                     rb.AddForce((mouseDir) * 1500f * Time.smoothDeltaTime);
11.  
12.                     Debug.Log("Direction: " + mousePos);
13.                 }

 

You need to learn to debug through your code. Try using the debugger or add debug logging.

To start with, are any lines there not working as you are expecting (there is certainly one )? Once you find something that is not working as you expect you can set about finding out why and thereby fixing it.

Incidentally- it is recommended to cache the return from

Camera.main

rather than keep calling it.