Is there an easy way to trigger an action like my player collide with something it plays a particle system or when he passes near an object it can activate it or others? I'm trying to script a bit my game but it's really difficult. For example, currently, I'm working on a simple advanced move. My character explore a room and when he walks past a bookcase, an icon appears and I can press a button to look for. When this action is made the bookcase visually changes and collectables appear. So the player can collect it. Thanks for the help