import sys, time, math, os, random
import Image
from pyglet.gl import *

window = pyglet.window.Window()

def initTexture(filename):
    img = Image.open(filename).transpose(Image.FLIP_TOP_BOTTOM)
    textureIDs = (pyglet.gl.GLuint * 1) ()
    glGenTextures(1,textureIDs)
    textureID = textureIDs[0]
    print 'generating texture', textureID, 'from ', filename
    glBindTexture(GL_TEXTURE_2D, textureID)
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, img.size[0], img.size[1],
                 0, GL_RGB, GL_UNSIGNED_BYTE, img.tostring())
    glBindTexture(GL_TEXTURE_2D, 0)
    return textureID


class Square:
    def __init__(self, width, height, xpos, ypos, color, texture):
        self.width = width
        self.height = height
        self.xpos = xpos
        self.ypos = ypos
        self.color = color
        self.texture = texture
    def draw(self):
        glColor3f(self.color[0],self.color[1],self.color[2])
        if self.texture != 0: glEnable(GL_TEXTURE_2D)
        glBindTexture(GL_TEXTURE_2D, self.texture)
        glPushMatrix()
        glTranslatef(self.xpos, self.ypos, 0)
        glBegin(GL_QUADS)
        glTexCoord2f(0,0)
        glVertex2f(-self.width/2.0, -self.height/2.0)
        glTexCoord2f(1,0)
        glVertex2f(self.width/2.0, -self.height/2.0)
        glTexCoord2f(1,1)
        glVertex2f(self.width/2.0, self.height/2.0)
        glTexCoord2f(0,1)
        glVertex2f(-self.width/2.0, self.height/2.0)
        glEnd()
        glPopMatrix()
        if self.texture != 0: glDisable(GL_TEXTURE_2D)

objects = []


@window.event
def on_draw():
    glClearColor(0, 0.3, 0.5, 0)
    glClear(GL_COLOR_BUFFER_BIT)
    
    for o in objects:
        o.draw()
    


@window.event
def on_key_press(key,modifiers):
    global objects
    if key == pyglet.window.key.LEFT:
        objects[0].xpos -= 5
    elif key == pyglet.window.key.RIGHT:
        objects[0].xpos += 5
    elif key == pyglet.window.key.UP:
        objects[0].ypos += 5
    elif key == pyglet.window.key.DOWN:
        objects[0].ypos -= 5


def update(dummy):
    global objects
    objects[1].xpos += random.uniform(-1, 1)
    objects[1].ypos += random.uniform(-1, 1)


square1 = Square(120, 120, 300, 200, [1,1,1], initTexture("texture.jpg"))
objects.append(square1)
square2 = Square(70, 70, 300, 400, [1,0,0], 0)
objects.append(square2)

pyglet.clock.schedule_interval(update,1/60.0)
pyglet.app.run()