Pygame Joystick, Tasks, Events...almost there!

Scripting Issues
#1

I was wondering if anybody could take a look at this bit of code.
I’ve taken the great examples in these forums and tried to put them together, but I still am having a minor issue. In the following, stripped down, version, when the JoystickPollingTask is added to the taskmgr, it loops forever via the “while 1:” and gets all of the buttons…everything works great here: the button presses are picked up and the event printHello accurately prints “hello” when button0 is pressed. However, the loadModels() function is never called since it is stuck in a while loop. How can we build this without the while loop? If I remove the while, then it never picks up the button presses. Any hints or fixes would be great!

from direct.task import Task
from direct.showbase.DirectObject import DirectObject
import direct.directbase.DirectStart

#Import pygame and init
from pygame import *
init()

class World(DirectObject):
    # constructor
    def __init__(self):
        init()
        j=joystick.Joystick(0)        
        j.init()

        self.loadModels()
        
        #add the joystick task to the taskmanager
        taskMgr.add(self.JoystickPollingTask, "hi")
    
        #print hello, if button0 is pressed
        self.accept("BUTTON0", self.printHello)
    #def
        
                
    def printHello(self):
        print 'Hello'
        
    def JoystickPollingTask(self, task):    
        print "JOYSTICK TASK!"
        while 1:
            for e in event.get():
                if e.type == JOYBUTTONDOWN:
                    if (e.dict["button"] == 0):
                        eventName = "BUTTON"+str(e.dict["joy"])
                        messenger.send(eventName, [])
                        print eventName                    
        return Task.done
    #def

    def loadModels(self):
        #Load the first environment model
        environ = loader.loadModel("models/environment")
        environ.reparentTo(render)
        environ.setScale(0.25,0.25,0.25)
        environ.setPos(-8,42,0)
    #def
        
world = World()
run()

I’ve used this as a reference: discourse.panda3d.org/viewtopic.php … e9e4b07c3b

#2

For incentive, I am trying to write an Xbox360 controller handler class that I plan on releasing back to the Panda community. :slight_smile:

NOW is anyone interested? I haven’t had a chance to look at this problem yet this week, so don’t think I’m being lazy asking. I’ll hopefully have a chance to look into it this weekend. Any tips would be great!

#3

I think you can just remove “while 1:”. event.get() will get all events since the last time you called event.get() and the taskMgr will call your JoystickPollingTask every frame, so there is no need for the while loop there.

I hope this helps.

#4

in addition to Laurens’ post: also change the task.done to task.cont, otherwise it won’t work.

#5

Thanks for replying.
Yeah, I tried removing “while 1:” because, in theory, you are correct. It should be called every frame since it is a task. Unfortunately, by removing “while 1:”, the joystick appears unresponsive because “print JOYSTICK TASK!” and printHello() never print anything.

If you add “while 1:” the joystick works, and the printing messages work great, but of course, the game is now locked in the that loop and can’t do anything else.

#6

HA! Thanks!
Task.cont fixed it! I knew I missed something.

The fix is to remove the “while 1:” and add Task.cont.

I will post here when I manage to get this thing to work fully.
Thanks! :slight_smile:

#7

OK, as promised here it is!

pyPad360 v1.0 is released!
https://discourse.panda3d.org/viewtopic.php?p=13314#13314