L'exécutable
- une sphère blanche se déplaçant toute seule et
rebondissant contre les bords de la fenêtre d'affichage.
Le source: Idle.cpp
#include "windows.h"
#include <GL/gl.h>
#include <GL/glu.h>
#include <GL/glaux.h>
#include <stdio.h>
static float x = 0.0F ;
static float y = 20.0F ;
static float dx = 1.13F ;
static float dy = 0.97F ;
static float w = 0.0F ;
static float h = 0.0F ;
void myinit(void) {
GLfloat light_ambient[] = { 0.0F,0.0F,0.0F,1.0F };
GLfloat light_diffuse[] = { 1.0F,1.0F,1.0F,1.0F };
GLfloat light_specular[] = { 1.0F,1.0F,1.0F,1.0F };
GLfloat light_position[] = { 1.0F,1.0F,1.0F,0.0F };
glLightfv(GL_LIGHT0,GL_AMBIENT,light_ambient);
glLightfv(GL_LIGHT0,GL_DIFFUSE,light_diffuse);
glLightfv(GL_LIGHT0,GL_SPECULAR,light_specular);
glLightfv(GL_LIGHT0,GL_POSITION,light_position);
glEnable(GL_LIGHTING);
glEnable(GL_LIGHT0);
glDepthFunc(GL_LESS);
glEnable(GL_DEPTH_TEST);
}
void CALLBACK display(void) {
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glTranslatef(x,y,0.0F);
auxSolidSphere(10.0);
glPopMatrix();
glFlush();
auxSwapBuffers();
}
void CALLBACK myReshape(int ww,int hh) {
w =(float) ww ;
h =(float) hh ;
glViewport(0,0,ww,hh);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(-w/2,w/2,-h/2,h/2,-10.0,10.0);
glMatrixMode(GL_MODELVIEW);
}
void CALLBACK idle(void) {
x += dx ;
y += dy ;
if ( x < -w/2+10 )
dx = -dx ;
if ( y < -h/2+10 )
dy = -dy ;
if ( x >= w/2-10 )
dx = -dx ;
if ( y >= h/2-10 )
dy = -dy ;
display() ;
}
void main(void) {
auxInitDisplayMode(AUX_DOUBLE|AUX_RGB|AUX_DEPTH);
auxInitPosition(0,0,300,300);
auxInitWindow("Une sphère se déplaçant toute seule");
myinit();
auxIdleFunc(idle);
auxReshapeFunc(myReshape);
auxMainLoop(display);
}
RETOUR