How do I go about using Hit.Test?

Hi,

I have come across a problem...

I have an empty game object, with a GUI Texture for a button to shoot

I have another script that does shooting

So far, I can't seem to use hit test to determine that Im pressing that button. If i tap the screen anywhere, the shooting works.

     void Update ()
     {
         Touch touch;
 
             if(Input.touchCount > 0)
             {
             touch = Input.touches[0];
             if (touch.phase == TouchPhase.Began) 
                 targetTex.texture = hoverTex; //swap texture
 
                 if(moveCtrl.facingRight)
                 {
                                 //shoot
                 }
                 else
                 {
                 //shoot
                 }
             }
 
 
         if(Input.touchCount < 0)
         {
             touch = Input.touches[0];
             if (touch.phase == TouchPhase.Ended)
                 targetTex.texture = normalTex; //swap texture back
             
         }
     

I tried using guiTexture.Hitest but then it was telling me there is no gui.texture present because I am using an empty game object to determine where I am shooting from

How will I go about this? Is there any other way to do this?

Thanks