Hey guys, need a bit of help…
I’ve got the basis for a “rolling marble” type game…
I just got my mouselook script working, but it’s got one small problem that I can’t seem to fix.
If you move the mouse in a circle a bunch, the camera will start to rotate along the (local) Z axis. Obviously, I don’t want this, since the camera shouldn’t be sideways. 
Here’s my script:
import GameLogic as GL
import Rasterizer as R
cont = GL.getCurrentController()
own = cont.getOwner()
mouse = cont.getSensor("MouseMove")
updown = cont.getActuator("updown")
leftright = cont.getActuator("leftright")
screenw = R.getWindowWidth()
screenh = R.getWindowHeight()
sensitivity = 0.0008
def mousemove():
x = mouse.getXPosition() - screenw/2
y = mouse.getYPosition() - screenh/2
if own.MouseStart == False:
x = 0
y = 0
own.MouseStart = True
return (x, y)
move = mousemove()
LR = move[0] * sensitivity
UD = move[1] * sensitivity
leftright.setDRot(0, 0, -LR, False)
updown.setDRot(-UD, 0, 0, True)
GL.addActiveActuator(leftright, True)
GL.addActiveActuator(updown, True)
R.setMousePosition(screenw/2, screenh/2)
I’ve tried fixing it with constraints, (Limit Rotation, Track To, and Locked Track,) but none of them seemed to work. I think Blender must ignore them since the Python script is telling it to do something else? 
Anyway, how should I fix this? Is there something I can add to my script to make it lock the rotation on the camera’s Z axis?
The answer is probably really simple, but I cant figure it out. lol
Thanks.