GameMaker Day 7

Attempting to make a working tank was the point of my work today, but it's alot harder than it may seem.  I have scavenged the web in hopes of finding some code to make it work, but I haven't been too successful. I have found (with some help) a code that connects the tank turret and hull. However, the tank's turret is flailing around with no aim control, so I'll need to fix that tomorrow.