#include <SDL/SDL.h>
#include <SDL/SDL_image.h>
#include <GL/gl.h>
#include <GL/glu.h>
#include "sdlglutils.h"

void dessiner(double angle, int x, int y);
GLuint texture;

int main(int argv, char *argc[])
{
 SDL_Init(SDL_INIT_VIDEO);
 
 SDL_Surface *screen=NULL;
 int x=0;
 int y=0;
 
 screen=SDL_SetVideoMode(640,480,32,SDL_OPENGL);
 
 glMatrixMode(GL_PROJECTION);
 glLoadIdentity();
 gluPerspective(70,(double)640/480,1,1000);
 glEnable(GL_DEPTH_TEST);
 glEnable(GL_TEXTURE_2D);
 texture=loadTexture("oiseau.jpg");
 
 bool continuer=1;
 SDL_Event event;
 double angle=0;
 
 while(continuer)
 {
  SDL_PollEvent(&event);
  switch(event.type)
  {
   case SDL_QUIT:
    continuer=0;
    break;
  }
  dessiner(angle, x, y);
 
  angle++;
 
  glFlush();
  SDL_GL_SwapBuffers();
 }
 
 SDL_Quit();
 return EXIT_SUCCESS;
}

void dessiner(double angle, int x, int y)
{
  glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
 
  glMatrixMode(GL_MODELVIEW);
  glLoadIdentity();
  gluLookAt(3,4,2,x,y,0,0,0,1);
 
  glRotated(angle,1,0,1);
 
  glBindTexture(GL_TEXTURE_2D, texture);
 
 glBegin(GL_QUADS);
   glTexCoord2d(0,1);  glVertex3d(1,1,1);
   glTexCoord2d(0,0);  glVertex3d(1,1,-1);
   glTexCoord2d(1,0);  glVertex3d(-1,1,-1);
   glTexCoord2d(1,1);  glVertex3d(-1,1,1);
 glEnd();
   
 glBegin(GL_QUADS); 
   glColor3ub(0,255,0);
   
   glTexCoord2d(0,1);  glVertex3d(1,-1,1);
   glTexCoord2d(0,0);  glVertex3d(1,-1,-1);
   glTexCoord2d(1,0);  glVertex3d(1,1,-1);
   glTexCoord2d(1,1);  glVertex3d(1,1,1);
 glEnd();
 
 glBegin(GL_QUADS);   
   glColor3ub(0,0,255);
   
   glTexCoord2d(0,1);  glVertex3d(1,-1,1);
   glTexCoord2d(0,0);  glVertex3d(-1,-1,1);
   glTexCoord2d(1,0);  glVertex3d(-1,-1,-1);
   glTexCoord2d(1,1);  glVertex3d(1,-1,-1);
 glEnd();
 
 glBegin(GL_QUADS); 
   glColor3ub(255,0,0);
   
   glTexCoord2d(0,1);  glVertex3d(-1,1,1);
   glTexCoord2d(0,0);  glVertex3d(-1,-1,1);
   glTexCoord2d(1,0);  glVertex3d(-1,-1,-1);
   glTexCoord2d(1,1);  glVertex3d(-1,1,-1);
 glEnd();
 
 glBegin(GL_QUADS); 
   glColor3ub(100,100,0);
   
   glTexCoord2d(0,1);  glVertex3d(1,-1,1);
   glTexCoord2d(0,0);  glVertex3d(1,1,1);
   glTexCoord2d(1,0);  glVertex3d(-1,1,1);
   glTexCoord2d(1,1);  glVertex3d(-1,-1,1);
 glEnd();
 
 glBegin(GL_QUADS); 
   glColor3ub(0,100,100);
   
   glTexCoord2d(0,1);glVertex3d(1,-1,-1);
   glTexCoord2d(0,0);glVertex3d(-1,-1,-1);
   glTexCoord2d(1,0);glVertex3d(-1,1,-1);
   glTexCoord2d(1,1);glVertex3d(1,1,-1);
 glEnd();
}

void drawAxis(double scale)
{
    glPushAttrib(GL_ALL_ATTRIB_BITS);
    glPushMatrix();
    glDisable(GL_LIGHTING);
    glDisable(GL_TEXTURE_2D);
    glEnable(GL_BLEND);
    glEnable(GL_LINE_SMOOTH);
    glLineWidth(2);
    glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);
    glScaled(scale,scale,scale);
    glBegin(GL_LINES);
    glColor3ub(255,0,0);
    glVertex3i(0,0,0);
    glVertex3i(1,0,0);
    glColor3ub(0,255,0);
    glVertex3i(0,0,0);
    glVertex3i(0,1,0);
    glColor3ub(0,0,255);
    glVertex3i(0,0,0);
    glVertex3i(0,0,1);
    glEnd();
    glPopMatrix();
    glPopAttrib();
}