I need a script where you can use a weapon in a slash animation outside of battle like in a horror g

basically you pick up a knife and if the killer starts chasing you can fight back.

Edit : it would be better if the icon showed up to in your hand.

What, if any, battle scripts are you using?

none, my game uses no battle scenes.

I think you would need a action battle system. so you can basically fight enemys outside of battle, and I knew a good one I liked for xp but I dont know any for ace. 

The action battle system would be a script.

Rather than making one, you can always modify an existing battle system. Try to use Pearl ABS for example. It allows you to do what you want. You can of course, edit it for your own use.