from math import *
from time import *
from pyglet.gl import *

def lerp(a, v0, v1):
    return (1-a)*v0 + a*v1

class Mover:
    def __init__(self,radius,color,pos0,pos1,duration=1):
        self.radius = radius
        self.color = color
        self.pos0 = pos0
        self.pos1 = pos1
        self.pos = pos0
        self.startTime = time()
        self.duration = duration
    def draw(self):
        glColor3f(self.color[0],self.color[1],self.color[2])
        glPushMatrix()
        glTranslatef(self.pos[0], self.pos[1] ,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()
    def update(self):
        a = (time() - self.startTime) / self.duration
        if a > 1:
            a = 1
        x = lerp(a, self.pos0[0], self.pos1[0])
        y = lerp(a, self.pos0[1], self.pos1[1])
        self.pos = [x,y]
    def reset(self):
        self.pos = self.pos0
        self.startTime = time()

window = pyglet.window.Window()

c = Mover(25, (0.5, 1, 0.2), (30,200), (600,400))

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

@window.event
def on_key_press(key,modifiers):
    if key == pyglet.window.key.SPACE:
        c.reset()
    

def update(dt):
    c.update()
    
pyglet.clock.schedule_interval(update,1/60.0)
pyglet.app.run()