passing args to tasks

alexrudd · October 1, 2006, 2:49am

drwr:

Do it like this:
task = Task(self.float_dmg)
taskMgr.add(task, extraArgs = [task, damage])
Two points:
(1) You don’t pass self.float_dmg(task, damage) to the Task constructor. Doing that calls self.float_dmg on the spot, and (if the function were to return without error) would just pass the return value of that call into the Task constructor. Instead, you want to pass the function itself to the Task constructor, which means just the function name, no parentheses. The Task will store the function pointer and call it later.

That’s what I thought made sense, since I had made the same mistake previously and discovered it. However, when I tried using Task() without passing the arguments, it gives me this error:

TypeError: 'module' object is not callable

When I do use the arguments, it works.
However. I think it does call the task, because I get an error about world.time not existing. I changed the first argument (when defining the task/function) to task, and got the same error. (Was self automatically being passed because it was self.float_damage?) At this point, I gave up and eventually found a workaround that replaced task.time. Thanks for explaining anyway.