#!/usr/bin/env python
"""This script shows another example of using the PyWavefront module."""
# This example was created by intrepid94
import ctypes
import os
import sys
sys.path.append('..')

import pyglet
from pyglet.gl import *

from pywavefront import visualization
from pywavefront import Wavefront

# Create absolute path from this module
file_abspath = os.path.join(os.path.dirname(__file__), 'data/earth.obj')

rotation = 0.0
meshes = Wavefront(file_abspath)
window = pyglet.window.Window(1024, 720, caption='Demo', resizable=True)
lightfv = ctypes.c_float * 4
label = pyglet.text.Label(
    'Hello, world',
    font_name='Times New Roman',
    font_size=12,
    x=800, y=700,
    anchor_x='center', anchor_y='center')


@window.event
def on_resize(width, height):
    viewport_width, viewport_height = window.get_framebuffer_size()
    glViewport(0, 0, viewport_width, viewport_height)

    glMatrixMode(GL_PROJECTION)
    glLoadIdentity()
    gluPerspective(40.0, float(width) / height, 1.0, 100.0)
    glEnable(GL_DEPTH_TEST)
    glMatrixMode(GL_MODELVIEW)
    return True

@window.event
def on_draw():
    window.clear()

    glLoadIdentity()

    glLightfv(GL_LIGHT0, GL_POSITION, lightfv(-40.0, 200.0, 100.0, 0.0))
    glLightfv(GL_LIGHT0, GL_AMBIENT, lightfv(0.2, 0.2, 0.2, 1.0))
    glLightfv(GL_LIGHT0, GL_DIFFUSE, lightfv(0.5, 0.5, 0.5, 1.0))
    glEnable(GL_LIGHT0)
    glEnable(GL_LIGHTING)

    glEnable(GL_COLOR_MATERIAL)
    glEnable(GL_DEPTH_TEST)
    glShadeModel(GL_SMOOTH)

    glMatrixMode(GL_MODELVIEW)

    # glTranslated(0, 4, -8)
    # glRotatef(90, 0, 1, 0)
    # glRotatef(-60, 0, 0, 1)

    # Rotations for sphere on axis - useful
    glTranslated(0, .8, -20)
    glRotatef(-66.5, 0, 0, 1)
    glRotatef(rotation, 1, 0, 0)
    glRotatef(90, 0, 0, 1)
    glRotatef(0, 0, 1, 0)

    visualization.draw(meshes)

def update(dt):
    global rotation

    rotation += 45 * dt

    if rotation > 720.0:
        rotation = 0.0


pyglet.clock.schedule(update)
pyglet.app.run()