Basically, lots of if...else statements combined with coroutines. Refactoring out as many big blocks of code helps a bit, but there's always yet another excepti

Basically, lots of if...else statements combined with coroutines. Refactoring out as many big blocks of code helps a bit, but there's always yet another exception lurking in the shadows, waiting to show up at the least opportune time (such as when the system is under stress).