Problem in 2D shooter help

Unity Engine
1

Hi guys im currently trying to make a 2D shooter similar to something like Intrusion 2currently at the stage where i have a character and am trying to make it so he always aims at the mouses location. It works perfectly if the character faces right, but if i turn him around the arm faces is the exact opposite direction of the mouse.

Ill upload a picture to show what i mean:
2209227--146836--Error.png . I am

Any help is appreciated.
Thanks, Sam

2

Try something like this:

using UnityEngine;
using System.Collections;

public class AimMouse : MonoBehaviour
{   void Update()
    {
        Vector2 mousePos = Camera.main.ScreenToWorldPoint(Input.mousePosition);
        Vector2 dir = mousePos - (Vector2)transform.position;

        transform.eulerAngles = new Vector3(0, 0, Mathf.Rad2Deg * Mathf.Atan2(dir.y, dir.x));
    }
}
3

Hi, thanks for the reply :slight_smile:

I have tried what you have there and it still does the same as my code. It only looks at the mouse if the character is facing to the right, if i move the character left so he is facing the left hand side the arm looks at the exact opposite direction to where the mouse is. I assume its something to do with how unity mirrors sprites but i dont know how to fix it.

Thanks again, Sam

4

Is the players arm animated separately to the rest of the body? It looks like it is mirroring the body on one axis & the arm or gun on another axis

5

Yeah the body is part of one animation prefab and then the arm is separate from the rest to it can work on a swivel. At least that was what i was hoping for.

6

Then I’d suggest checking the swivel because the arm is moving but it looks like on the wrong axis (the gun is upside down )

7

Is there a way to make it so that i can change the rotation of an object if the character is facing left?

8

Does the character ever put the gun down? If not you could have just the one sprite & flip it or if you didn’t want it to look like he was switching arms to shoot create 2 sprites & just show the oNe that matches the direction he is shooting.

9

Hmm ok, thanks guys i’ll ill try making the two sprites and that should work.

Thanks, Sam

10

Good luck, & this should let you progress & test more stuff in your game. You can always go back later & try to get it working again with the swivel if you aren’t satisfied with how it looks.

11

I’m guessing you are applying scale -1 to the x? This will reverse the collider and all the transform too.

We have a feature coming out soon that allows you to visually flip the sprite but not everything else.

I guess, for now you need to account for this for your feature to work.

12

A little bit late, but… If the arm is parented to the body and the body is flipped using a negative scale, then this should solve your problem:

using UnityEngine;
using System.Collections;

public class AimMouse : MonoBehaviour
{   void Update()
    {
        Vector2 mousePos = Camera.main.ScreenToWorldPoint(Input.mousePosition);
        Vector2 dir = mousePos - (Vector2)transform.position;

    transform.eulerAngles = new Vector3(0, 0, Mathf.Rad2Deg*Mathf.Atan2(dir.y, dir.x) * Mathf.Sign(transform.parent.localScale.y));
    }
}
13

Hi, is this feature you mentioned included in 5.3 ?