/*
  Name: Main.cpp
  Copyright: 
  Author: Alucards
  Date: 03/11/04 15:57
  Description: OpenGL Template
*/


//#include <gl/gl.h>
//#include <gl/glu.h>
#include <gl/glut.h>

#include <iostream>
#include "loader.h"
#include "loaderBMP.h"




using namespace std;

GLuint g_ID_texture_bmp[6],g_ID_texture_jpg[6];

int filtering = 0,typetexture = 0;

int nbfilter;
float xrot,yrot,zrot;

void reshape(int w, int h){
  glViewport(0,0,(GLsizei) w,(GLsizei) h);
  glMatrixMode(GL_PROJECTION);
  glLoadIdentity();
  gluPerspective(45.0,(GLfloat) w/(GLfloat)h,0.01,100.0);
  glMatrixMode(GL_MODELVIEW);
}


void Init()
{ 

   nbfilter = 4;

 	
   glClearColor(0.3, 0.2, 0.7, 0.0);
	glEnable(GL_COLOR);
	glEnable(GL_DEPTH_TEST);
	glEnable(GL_TEXTURE_2D);
	glEnable(GL_BLEND);
	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);

   static Loader* loader = (Loader*)LoaderBMP::GetInstance();//creation et init du loader
   // Charge une texture au format BMP 
   loader = loader->Load("data/unejourneeenenfer.bmp"); 
   if ( loader->IsLoaded())
   {
      //on cree 6 textures
		glGenTextures(nbfilter, &g_ID_texture_bmp[0]);				
      for(int i = 0; i < nbfilter; i++)
      {  
         //on recupere les textures chargees de notre loader
         g_ID_texture_bmp[i] = loader->texID[i];
      }
   }
   
   // Charge une texture au format JPG
   loader = loader->Load("data/Sol.jpg"); 
   if ( loader->IsLoaded())
   {
		//on cree 6 textures
      glGenTextures(nbfilter, &g_ID_texture_jpg[0]);		
      for(int i = 0; i < nbfilter; i++)
      {  
         //on recupere les textures chargees de notre loader
         g_ID_texture_jpg[i] = loader->texID[i];
      }
   }  
} 
 
 void keys(int key,int x,int y){
  switch(key)
    {
    case GLUT_KEY_PAGE_UP : 
         if (filtering>nbfilter-1)filtering=0;
        break;
    case GLUT_KEY_PAGE_DOWN :
		typetexture+=1;
		if (typetexture>2)typetexture=0;
  break;
   
    }
  glutPostRedisplay();
}

void idleFunc(){
     xrot+=0.3f;								// X Axis Rotation
	yrot+=0.2f;								// Y Axis Rotation
	zrot+=0.4f;	                           //Z
    glutPostRedisplay();
}

void display (){
 
 cout<<"la";
   glClear (GL_COLOR_BUFFER_BIT);
	glMatrixMode (GL_MODELVIEW);
	glLoadIdentity ();
	
	glTranslatef(0.0f,0.0f,-5.0f);						// Move Into The Screen 5 Units
	
	glRotatef(xrot,1.0f,0.0f,0.0f);						// Rotate On The X Axis
	glRotatef(yrot,0.0f,1.0f,0.0f);						// Rotate On The Y Axis
	glRotatef(zrot,0.0f,0.0f,1.0f);
	
 	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
	glColor3f(1.0, 1.0, 1.0);

   switch(typetexture)
   {
                      
      
      case 0: glBindTexture(GL_TEXTURE_2D, g_ID_texture_bmp[filtering]);
      break;
      default: glBindTexture(GL_TEXTURE_2D, g_ID_texture_jpg[filtering]);
      break;
   }
   
   
   
   glBegin(GL_QUADS);
		// Front Face
		
		glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, -1.0f,  1.0f);	// Bottom Left Of The Texture and Quad
		glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, -1.0f,  1.0f);	// Bottom Right Of The Texture and Quad
		glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f,  1.0f,  1.0f);	// Top Right Of The Texture and Quad
		glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f,  1.0f,  1.0f);	// Top Left Of The Texture and Quad
		// Back Face
		glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f, -1.0f);	// Bottom Right Of The Texture and Quad
		glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f,  1.0f, -1.0f);	// Top Right Of The Texture and Quad
		glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f,  1.0f, -1.0f);	// Top Left Of The Texture and Quad
		glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f, -1.0f);	// Bottom Left Of The Texture and Quad
		// Top Face
		glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f,  1.0f, -1.0f);	// Top Left Of The Texture and Quad
		glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f,  1.0f,  1.0f);	// Bottom Left Of The Texture and Quad
		glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f,  1.0f,  1.0f);	// Bottom Right Of The Texture and Quad
		glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f,  1.0f, -1.0f);	// Top Right Of The Texture and Quad
		// Bottom Face
		glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f, -1.0f, -1.0f);	// Top Right Of The Texture and Quad
		glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f, -1.0f, -1.0f);	// Top Left Of The Texture and Quad
		glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f,  1.0f);	// Bottom Left Of The Texture and Quad
		glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f,  1.0f);	// Bottom Right Of The Texture and Quad
		// Right face
		glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, -1.0f, -1.0f);	// Bottom Right Of The Texture and Quad
		glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f,  1.0f, -1.0f);	// Top Right Of The Texture and Quad
		glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f,  1.0f,  1.0f);	// Top Left Of The Texture and Quad
		glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f,  1.0f);	// Bottom Left Of The Texture and Quad
		// Left Face
		glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, -1.0f, -1.0f);	// Bottom Left Of The Texture and Quad
		glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f,  1.0f);	// Bottom Right Of The Texture and Quad
		glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f,  1.0f,  1.0f);	// Top Right Of The Texture and Quad
		glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f,  1.0f, -1.0f);	// Top Left Of The Texture and Quad
	glutPostRedisplay();
glutSwapBuffers();
glEnd();
}


int main(int argc, char**argv){

  glutInit(&argc,argv);

  glutInitDisplayMode(GLUT_DOUBLE|GLUT_RGB|GLUT_DEPTH);

  glutInitWindowSize(250,250);
  glutInitWindowPosition(100,100);
  glutCreateWindow("Moulins");

  Init();
 
  glutDisplayFunc(display);
  glutSpecialFunc(keys);
  glutIdleFunc(idleFunc);
  glutReshapeFunc(reshape);
  glutMainLoop();

  return 0;

}