To change the score value, I've added a custom event and called it setScore. This custom event will be working on setting the value of the Score variable by adding 1 to it using the integer + integer node. The final result of the score value will be displayed in the UI using the Set text node. Keep in mind that you can use whatever values you want, as long as you are using the add node. This node will be working on adding the first passed integer value to the second passed integer.

I wanted to follow a new method to change the value of ammo, which is closer to the code environment that I have used over the years. It is called passing parameters. Basically, when I called an event or function, I wanted to send the exact new value directly to it, and then use it to set the ammo text based...