Need help to disable touch when a mobile player is shooting a gun

Basicly right now I have the buttons and so everything works but one issue is that the mobile player can just click the screen and not just the button.

The issue is basicly how do I make so mobile players must press the mobile button to shoot not the screen

solutions I have tried os some here on the devforum but I cant get anything to work

Like this is not what I want that they can press the screen
https://gyazo.com/43e11b4430ff7ca24723f9145572e72c

This is what iÍ want instead that they just press the button
https://gyazo.com/f844456f91b44d80ccbced86b645fca1