2D flipcode help

Hi, I'm not the best programmer but I'm having some issues when my sprite is flipped. This is my code.

void Update () {
//rotation
Vector3 mousePos = Input.mousePosition;
mousePos.z = 1f;

Vector3 objectPos = Camera.main.WorldToScreenPoint (transform.position);
mousePos.x = mousePos.x - objectPos.x;
mousePos.y = mousePos.y - objectPos.y;

float angle = Mathf.Atan2(mousePos.y, mousePos.x) * Mathf.Rad2Deg;
angle = Mathf.Clamp (angle, -15.0f, 30.0f);


transform.rotation = Quaternion.Euler(new Vector3(0, 0, angle));

when character is facing right it works perfectly but when the character is flipped left that's when I run into issues. Is there some way i can flip this code so it works on the left side?

edit: I got it working

 

I think I remember issues with screen / world position of the mouse having to subtract the mouse.y from the screen height or something or the other
try change the one line to this and see :

Code (csharp):

1.  
2. mousePos.y = (Screen.height-mousePos.y) - objectPos.y;

but you should really flip the sprite using localScale, its much simpler :

Code (csharp):

1.  
2. public void Flip()
3. {
4.      // Multiply the x component of localScale by -1.
5.      Vector3 playerScale = transform.localScale;
6.      playerScale.x *= -1;
7.      transform.localScale = playerScale;
8.      moveSpeed = moveSpeed * -1;
9.  }

 

thanks but I have a separate script on the body that flips the sprites that uses that. My issue is the movement code for arm which i have rotating on the z axis using this code. i have it also locked between -15 and 30. but once the character is flipped the code no longer works. the arm is still moving like the arm is facing right. The sprite for the is flipped. I have a idea if there was some way to flip the coordinates for the x-axis when flipped. that would solve my problems but I have no idea how to do that.

 

Code (CSharp):

1.  mouse_pos = Input.mousePosition;
2.         mouse_pos.z = 5.23f; //The distance between the camera and object
3.         object_pos = Camera.main.WorldToScreenPoint(target.position);
4.         mouse_pos.x = mouse_pos.x - object_pos.x;
5.         mouse_pos.y = mouse_pos.y - object_pos.y;
6.         if (Player.directionalInput.x >= 1 || bFlag)
7.         {
8.             transform.localPosition = position;
9.             rend.flipX = false;
10.             bFlag = true;
11.             angle = Mathf.Atan2(mouse_pos.y, mouse_pos.x) * Mathf.Rad2Deg;
12.             //Debug.Log(angle);
13.             if (angle <= 30 && angle >= -16)
14.             {
15.                 transform.rotation = Quaternion.Euler(new Vector3(0, 0, angle));
16.             }
17.         }
18.         if (Player.directionalInput.x <= -1 || !bFlag)
19.         {
20.             rend.flipX = true;
21.             bFlag = false;
22.  
23.             transform.localPosition = NewPosition;
24.             angle = Mathf.Atan2(mouse_pos.y, mouse_pos.x) * Mathf.Rad2Deg;
25.             Debug.Log(angle+180);
26.             angle += +180;
27.             if (angle <= 16 && angle >= 0 || angle <= 360 && angle >= 330)
28.             {
29.             transform.rotation = Quaternion.Euler(new Vector3(0, 0, angle));
30.             }
31.         }