Is there a script for us to lock and unlock the door? Let's say the door is locked, we'll need a key to open it. If you got the key, you can unlock the door, if you got nothing the door won't open.
Is it possible? Thanks for solutions.

May I ask some about coding in sandbox because I doing my own game. Can I have these in my games: 1. When you've picked up a wood or whatever, is it possible to convert it into another things? (Let's say if you've picked up a iron, and you need to have 2 irons to make a sword.) "I'll make a but...