During my brief participation in game development I watched an attempt to make game out of needs and actions. This was done because state machines in previous g

During my brief participation in game development I watched an attempt to make game out of needs and actions. This was done because state machines in previous game have failed in unpredictable ways, like dead bodies started to walk while continuing laying on their side and even went into fight. The end result? AI programmer resorted to state machines, because it was difficult to control character's behavior. For example, there were oscillating behaviors without any advancement on character's part. Team lead had to agree because there aas no budget to tune each character needs and actions to make game playable. I think this anecdote can explain why objects, needs and actions are seldom used.