Global function works now! No more help necessary!

[Your Computer]

- When it is set to "2", the door is there, but when given the command "AddGlobalVarInt("openlivingdoor", 1);", it does not disappear...

According to what little code you posted, at that point openlivingdoor would equal 3. So it is working as should be expected. Or am i not understanding your statement here? If you meant something else, then i would like a bigger traceback from your code; that is, showing a function that is obviously for a collision callback yet not informing us when that callback gets called is a way of leaving us in the dark. Likewise, if that AddGlobalVarInt from the collision callback is within conditional statements.

Edit: A change in title, but no other information about the issue being solved?