interactive transformation - simple keyboard controls

interactiveXform.py

import sys, math, random
from pyglet.gl import *

window = pyglet.window.Window()

points = [0,0]
colors = [1,1,1]
for i in range(0,41):
    angle = (i/40.0) * math.pi * 2
    x,y = math.sin(angle), math.cos(angle)
    r,g,b = random.uniform(0,1), random.uniform(0,1), random.uniform(0,1)
    points += [x,y]
    colors += [r,g,b]
wheel = pyglet.graphics.vertex_list(42, ('v2f', points), ('c3f', colors))
wheelScale = 25.0
wheelRot = 0
wheelTrans = [50,50]


@window.event
def on_draw():
    glClear(GL_COLOR_BUFFER_BIT)
    glLoadIdentity()
    glTranslatef(wheelTrans[0], wheelTrans[1], 0)
    glRotatef(wheelRot, 0, 0, 1)
    glScalef(wheelScale, wheelScale, wheelScale)
    wheel.draw(GL_TRIANGLE_FAN)


@window.event
def on_key_press(key,modifiers):
    global wheelScale, wheelRot, wheelTrans
    if key == pyglet.window.key.ESCAPE:
        sys.exit(0)
    elif key == pyglet.window.key.W:
        wheelTrans[1] += 20
    elif key == pyglet.window.key.A:
        wheelTrans[0] -= 20
    elif key == pyglet.window.key.S:
        wheelTrans[1] -= 20
    elif key == pyglet.window.key.D:
        wheelTrans[0] += 20
    elif key == pyglet.window.key.UP:
        wheelScale += 2
    elif key == pyglet.window.key.DOWN:
        wheelScale -= 2
    elif key == pyglet.window.key.LEFT:
        wheelRot += 10
    elif key == pyglet.window.key.RIGHT:
        wheelRot -= 10


pyglet.app.run()