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

window = pyglet.window.Window()


class Circle:
    def __init__(self,radius,r,g,b,x=0,y=0):
        self.radius = radius
        self.r = r
        self.g = g
        self.b = b
        self.x = x
        self.y = y
    def draw(self):
        glColor3f(self.r,self.g,self.b)
        glPushMatrix()
        glTranslatef(self.x, self.y ,0)
        glBegin(GL_TRIANGLE_FAN)
        glVertex2f(0,0)
        for angle in range(0,370,10):
            x = self.radius * cos(radians(angle))
            y = self.radius * sin(radians(angle))
            glVertex2f(x,y)
        glEnd()
        glPopMatrix()


c = Circle(50,1,0,0,300,300)
info = pyglet.text.Label('Mouse: ',x=5,y=5)

@window.event
def on_draw():
    global c, info
    glClear(GL_COLOR_BUFFER_BIT)
    c.draw()
    info.draw()

@window.event
def on_mouse_motion(x,y,dx,dy):
    global c, info
    c.x = x
    c.y = y
    info.text = 'Mouse: %d %d   %d %d' % (x,y,dx,dy)

@window.event
def on_mouse_press(x,y,button,modifiers):
    global c
    if button == pyglet.window.mouse.LEFT:
        c.radius -= 5
    elif button == pyglet.window.mouse.RIGHT:
        c.radius += 5

pyglet.app.run()