Inverse Tangent might be slightly easier since you don't need the hypotenuse in the calculation. I've not used it before so if anyone has a slicker way of doing it, please chime in.
#x_axis is the position of the horizontal joystick #y_axis is the position of the vertical joystick angle_radians = math.atan2(y_axis,x_axis) angle_degrees = math.degrees(math.atan2(y_axis,x_axis)) Either way, the output will be from -180 degrees to +180 degrees (or the radian equivalents) rather than 0 to 360, so you'll potentially have to watch out for that in your logic. See the documentation at http://docs.python.org/library/math.html for why atan2(y,x) is probably more useful than just atan(x). -Lee- On Tue, Dec 6, 2011 at 10:44 PM, Andrew Godfroy <killer...@hotmail.com>wrote: > Hey Lee, > > That was actually alot more helpful than what I have been able to find > over my past days of searching! Thank you very much. I may actually be able > to move forward with my ambitious school project now [image: Smile] > > Now all I have to figure out is how to find what angle that the Thumbstick > is pointing so that I can rotate my player sprite according to which way > that the player is moving. I talked to my math teacher about it, and she > agreed that I should try using the Inverse of Sin to find the angle. > Hopefully that works, because if it doesn’t; I'll be back at square one > again. > > ... But if anyone has had any experience with getting the angle for a > rotation based off of a Joystick Thumbstick, or Mouse Position, it would be > awesome if you could share how you found it out so I could use it as a > reference. > > *From:* Lee Buckingham > *Sent:* Tuesday, December 06, 2011 12:53 AM > *To:* pygame-users@seul.org > *Subject:* Re: [pygame] [Pygame] Joystick Inputs > > Hi Andrew, > > For buttons I use this: > > if event.type == pygame.JOYBUTTONDOWN: > if event.button == "whatever...": > etc.... > > if event.type == pygame.JOYBUTTONUP: > and so on... > > > For analog control and d-pads you have to check for axis position each > time through the game loop. I do it all at once before the player objects > update themselves > > Like this: > > horizontal_axis = self.joysticks[player_number].get_axis(0) > vertical_axis = self.joysticks[player_number].get_axis(1) > > Then change the x and y speed for the player with "player_number" to > whatever the axis positions are (times a constant, if necessary). Of > course, the player_number has to correspond to the joystick collection > indices pretty well for this to work. You can eliminate that part of it by > replacing "player_number" with "0" and just make sure to check that the > joystick count is >0 before you call .get_axis > > Hope this helps a little! > > -Lee- > > On Thu, Dec 1, 2011 at 5:51 PM, Andrew Godfroy <killer...@hotmail.com>wrote: > >> Alright, I just checked over my question and I noticed I wasn’t >> exactly clear what I was looking for... >> >> What I am asking is how do I work the event handler for checking joystick >> commands such as if the Left Thumbstick-[0] or [1]- moves, or if the A >> button-[0]- is pressed >> Does anyone know how that works? >> > >
