hi. i need help with the usage of a key on a lock. the problem is: i can only make the lock and the key disappear but not the other 8 around it. i would like some help to get a code to make the verticl 3x3 area disappear. also i tried making spikes but the problem is: i can't make them hurt anyone/anything. any help?
edit: i can make the door work now but i can't place blocks next to the door base anymore
edit: doors have to be plus shaped which looks kinda cool as well. as for the spikes, there needs to be a carpet on top or something. i still need help with creating spikes that damages when you walk through