Point towards mouse position?

Unity Engine
,
1

So I’m trying to make a overhead shooter and want it to point towards mouse cursor. So I looked up a vid on that and this is the only code I can find:

   void PointToMouse()
    {

        Vector3 mouse = Input.mousePosition;
        Vector3 ScreenPos = Camera.main.ScreenToWorldPoint(mouse);

        Vector2 offset = new Vector2(mouse.x - ScreenPos.x, mouse.y - ScreenPos.y);

        float angle = Mathf.Atan2(offset.y, offset.x) * Mathf.Rad2Deg;
        transform.rotation = Quaternion.Euler(0, 0, angle);
    }

And its seams to be all wonky and doesnt point towards the mouse position at all. Does anyone have any ideas?

2

Typically the way to do this is to project a ray down from the camera and hit the ground. That’s what the line Camera.main.ScreenToWorldPoint(mouse); is doing.

The position you hit is the positon your character aims towards. You could either user transform.LookAt() to have your player’s transform always looking where the mouse lands on the ground, or you could work out the direction from your character’s position to where the mouse is, calulate the angle and then rotate your character by said angle.

Your code seems to be doing that but I’m not sure what the purpose of the offset is.

Have a watch of this vid as he goes over doing this, including movment for the character.

3

Oh my gosh thanks for linking brackeys vid. Life saver. Using rb.rotation and rb.position and subtracting 90 from my angle var fixed it.

1 Like
4

Hey guys, if your still having the problem and seeing that the player is pointing towards your main camera, then go to your main camera and see if it’s on Orthographic and not perspective. The reason is that Orthographic is for 2d projects and perspective is for 3d games. I worked for me so well.

5

would this work in a 3d project?

6

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