/* Auteur: Nicolas JANEY            */
/* nicolas.janey@univ-fcomte.fr     */
/* Avril 2001                       */
/* Modelisation OpenGL d'une scene  */
/* composee de cubes                */

#include <stdio.h>
#include <math.h>

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

#include "ModuleCouleurs.h"
#include "ModuleFont.h"
#include "ModuleManipulateur.h"
#include "ModuleMenus.h"
#include "ModuleReshape.h"

static int type = 0 ;
static int maille = 0 ;

void myinit(void) {
  GLfloat light_position0[] = { 0.0F,0.0F,1.0F,0.0F };
  GLfloat light_position1[] = { 0.0F,0.0F,1.0F,0.0F };
  glLightfv(GL_LIGHT0,GL_AMBIENT,couleurNoir());
  glLightfv(GL_LIGHT0,GL_DIFFUSE,couleurBlanc());
  glLightfv(GL_LIGHT1,GL_DIFFUSE,couleurBlanc());
  glLightfv(GL_LIGHT0,GL_SPECULAR,couleurNoir());
  glLightfv(GL_LIGHT0,GL_POSITION,light_position0);
  glLightfv(GL_LIGHT1,GL_POSITION,light_position1);
  glEnable(GL_LIGHT0);
  glEnable(GL_LIGHT1);
  glDepthFunc(GL_LESS);
  glEnable(GL_AUTO_NORMAL);
  glEnable(GL_NORMALIZE);
  glClearAccum(0.0,0.0,0.0,0.0);
  setManipulateurClavierAngle(35.0F,20.0F,0.0F);
}

void axes() {
  glPushMatrix() ;
  glColor4fv(couleurJaune()) ;
  glBegin(GL_LINES) ;
  glVertex3f(0.0F,0.0F,0.0F) ;
  glVertex3f(1.0F,0.0F,0.0F) ;
  glEnd() ;
  placeFontCursor(1.05F,0.05F,0.05F);
  simpleBitmapOutput("x");
  glColor4fv(couleurCyan()) ;
  glBegin(GL_LINES) ;
  glVertex3f(0.0F,0.0F,0.0F) ;
  glVertex3f(0.0F,1.0F,0.0F) ;
  glEnd() ;
  placeFontCursor(0.05F,1.05F,0.05F);
  simpleBitmapOutput("y");
  glColor4fv(couleurMagenta()) ;
  glBegin(GL_LINES) ;
  glVertex3f(0.0F,0.0F,0.0F) ;
  glVertex3f(0.0F,0.0F,1.0F) ;
  glEnd() ;
  placeFontCursor(0.05F,0.05F,1.05F);
  simpleBitmapOutput("z");
  if ( maille ) {
    glColor4fv(couleurGrisMoyen()) ;
    for ( int i = -100 ; i < 100 ; i++ ) {
      glBegin(GL_LINES) ;
      glVertex3f((float) i,0.0F,200.0F) ;
      glVertex3f((float) i,0.0F,-200.0F) ;
      glEnd() ;
      glBegin(GL_LINES) ;
      glVertex3f(200.0F,0.0F,(float) i) ;
      glVertex3f(-200.0F,0.0F,(float) i) ;
      glEnd() ; } }
  glPopMatrix() ;
}

void displayCotes(void) {
  glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
  glPushMatrix();
  manipulateurSouris();
  manipulateurClavier();
  glPushMatrix();
  glTranslatef(1.5F,0.0F,-1.5F) ;
  glColor4fv(couleurRouge()) ;
  glutWireCube(1.0) ;
  glPopMatrix();
  glPushMatrix();
  glTranslatef(-1.5F,0.0F,-1.5F) ;
  glColor4fv(couleurVert()) ;
  if ( type > 3 ) {
    glRotatef(30.0F,0.0F,1.0F,0.0F) ;
    glTranslatef(0.0F,0.0F,-0.5F) ; }
    else
    if ( type > 2 ) {
      glRotatef(40.0F,0.0F,1.0F,0.0F) ;
      glScalef(1.0F,1.0F,2.0F) ; }
  glutWireCube(1.0) ;
  glPopMatrix();
  glPushMatrix();
  glTranslatef(-1.5F,0.0F,1.5F) ;
  glColor4fv(couleurBlanc()) ;
  if ( type > 1 )
    glScalef(1.0F,1.0F,2.0F) ;
  glutWireCube(1.0) ;
  glPopMatrix();
  glPushMatrix();
  glTranslatef(1.5F,0.0F,1.5F) ;
  glColor4fv(couleurBleu()) ;
  if ( type > 0 )
    glRotatef(45.0F,0.0F,1.0F,0.0F) ;
  glutWireCube(1.0) ;
  glPopMatrix();
  axes() ;
  glDisable(GL_DEPTH_TEST);
  glPopMatrix();
  glAccum(GL_ACCUM,0.7F);
}

void displayCubes(void) {
  glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
  glPushMatrix();
  manipulateurSouris();
  manipulateurClavier();
  glEnable(GL_LIGHTING);
  glEnable(GL_DEPTH_TEST);
  glPushMatrix();
  glTranslatef(1.5F,0.0F,-1.5F) ;
  glMaterialfv(GL_FRONT,GL_DIFFUSE,couleurRouge(0.5F)) ;
  glutSolidCube(1.0) ;
  glPopMatrix();
  glPushMatrix();
  glTranslatef(-1.5F,0.0F,-1.5F) ;
  glMaterialfv(GL_FRONT,GL_DIFFUSE,couleurVert(0.5F)) ;
  if ( type > 3 ) {
    glRotatef(30.0F,0.0F,1.0F,0.0F) ;
    glTranslatef(0.0F,0.0F,-0.5F) ; }
    else
    if ( type > 2 ) {
      glRotatef(40.0F,0.0F,1.0F,0.0F) ;
      glScalef(1.0F,1.0F,2.0F) ; }
  glutSolidCube(1.0) ;
  glPopMatrix();
  glPushMatrix();
  glTranslatef(-1.5F,0.0F,1.5F) ;
  glMaterialfv(GL_FRONT,GL_DIFFUSE,couleurBlanc(0.5F)) ;
  if ( type > 1 )
    glScalef(1.0F,1.0F,2.0F) ;
  glutSolidCube(1.0) ;
  glPopMatrix();
  glPushMatrix();
  glTranslatef(1.5F,0.0F,1.5F) ;
  glMaterialfv(GL_FRONT,GL_DIFFUSE,couleurBleu(0.5F)) ;
  if ( type > 0 )
    glRotatef(45.0F,0.0F,1.0F,0.0F) ;
  glutSolidCube(1.0) ;
  glPopMatrix();
  glDisable(GL_LIGHTING);
  glPopMatrix();
  glAccum(GL_ACCUM,0.3F);
}

void display(void) {
  glClear(GL_ACCUM_BUFFER_BIT);
  glPushMatrix() ;
  displayCubes() ;
  displayCotes() ;
  glAccum(GL_RETURN,1.0);
  glPopMatrix() ;
  glFlush();
  glutSwapBuffers();
}

void key(unsigned char key,int x,int y) {
  if ( keyManipulateur(key,x,y) )
    glutPostRedisplay();
    else
    switch ( key ) {
      case 0x0D : type = (type+1)%5 ;
                  glutPostRedisplay();
                  break;
      case 32   : maille = 1 - maille ;
                  glutPostRedisplay();
                  break; }
}

int main(int argc,char **argv) {
  glutInit(&argc,argv);
  glutInitDisplayMode(GLUT_RGBA|GLUT_DEPTH|GLUT_DOUBLE|GLUT_ACCUM);
  glutInitWindowSize(200,200); 
  glutInitWindowPosition(50,50); 
  glutCreateWindow("Mini-langage"); 
  myinit(); 
  creationMenuBasique();
  setParametresOrthoBasique(-3.0,3.0,-3.0,3.0,-500.0,500.0);
  setManipulateurDistance(1.0F);
  glutReshapeFunc(reshapeOrthoBasique);
  glutKeyboardFunc(key);
  glutSpecialFunc(specialBasique);
  glutMotionFunc(motionBasique);
  glutMouseFunc(sourisBasique);
  glutDisplayFunc(display);
  glutMainLoop();
  return(0);
}