I am making a game where players can pick up objects and use those objects to unlock doors, chests, closets, etc. I need to know what would be the best and easiest way to do this. How can I make it to where the player can click an object on the ground, send it to the top of the screen as if it were in their "inventory", and then later use it to unlock a door. I've asked this question for the last 3 days and no one can seem to help me.
