#ifdef G_OS_WIN32
  #define WIN32_LEAN_AND_MEAN 1
  #include <windows.h>
#else
  #define FALSE 0
  #define TRUE !FALSE
#endif

#include <stdlib.h>
#include <GL/gl.h>
#include <GL/glut.h>
#include <math.h>

#include "menu.h"

#define SCREEN_WIDTH  640
#define SCREEN_HEIGHT 480


void init_gl(void)
{

} // init_gl


void render_blox(void)
{
  static double l_dAngle = 0.0;

  glPushMatrix();
    glTranslated(0, 0, -20);
    glTranslated(sin(l_dAngle * (float)3.1415 / 180.0f) * 5,
                 sin(l_dAngle * (float)3.1415 / 180.0f) * 5,
                 -5 + sin(l_dAngle * (float)3.1415 / 180.0f) * 5);
    glRotated(l_dAngle, 0.5, 0.5, 1);

    // draw big cube
    glutSolidCube(4);

    glPushMatrix();
      // draw smaller cube
      glTranslated(0, sin(l_dAngle * (float)3.1415 / 180.0f) * 5, 0);
      glutSolidCube(2);
    glPopMatrix();

  glPopMatrix();

  l_dAngle += 0.1;

} // render_blox


void render_scene(void)
{
  float l_pfMaterial[] = {1.0f, 0.4f, 0.0f, 0.0f};

  glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
  glClearColor(1, 0.4, 0.2, 1);
  glDisable(GL_TEXTURE_2D);

  // enable default lighting
  glEnable(GL_DEPTH_TEST);
  glEnable(GL_LIGHTING);
  glEnable(GL_LIGHT0);
  glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, l_pfMaterial);
  
  // render 3d shit
  glMatrixMode(GL_PROJECTION);
  glLoadIdentity();
  gluPerspective(45, 1.0, 1.0, 100.0);
  glMatrixMode(GL_MODELVIEW);

  render_blox();

  glDisable(GL_LIGHTING);

  MenuRender();
  glutSwapBuffers();

} // render_scene



void process_normal_keys(unsigned char key, int x, int y)
{
  // escape
  if (key == 27) exit(0);
  if (key == ' ') MenuNext();

} // process_normal_keys



void process_special_keys(int key, int x, int y)
{
  switch (key)
  {
	  // do sumting
  }

} // process_special_keys



void process_mouse(int button, int state, int x, int y)
{
  MenuMouseClick(button, state, x, y);

} // process_mouse



void process_passive_mouse(int x, int y)
{
  MenuMouseMove(x, y);

} // process_passive_mouse



int main(int argc, char **argv)
{
  glutInit(&argc, argv);
  glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);
  glutInitWindowSize(SCREEN_WIDTH, SCREEN_HEIGHT);
  glutCreateWindow("Menu demo");
  glutDisplayFunc(render_scene);
  glutIdleFunc(render_scene);
  glutKeyboardFunc(process_normal_keys);
  glutSpecialFunc(process_special_keys);
  glutMouseFunc(process_mouse);
  glutPassiveMotionFunc(process_passive_mouse);
  glutSetCursor(GLUT_CURSOR_NONE);

  init_gl();
  MenuInit(SCREEN_WIDTH, SCREEN_HEIGHT);

  glutMainLoop();

  return 0;

} // main