تحريك الاجسام ..

هنا مثال بسيط لعمليه التحريك :

#include<windows.h>
#include<GL/gl.h> 
#include<GL/glu.h>
#include<GL/glut.h>
#include<math.h>
#include<time.h>
#pragma comment (lib,"OpenGL32.lib")
#pragma comment (lib,"glu32.lib")
#pragma comment (lib,"glut32.lib")
int width  = 700;
int height = 700;

float x=0,y=0,w=50,h=50;
bool bDirection=true;
void Drawing()
{

}
void movie()
{
        glClear(GL_COLOR_BUFFER_BIT);
		glBegin(GL_QUADS);
        glVertex2d(x,y);
        glVertex2d(x,y+h);
        glVertex2d(x+w,y+h);
		glVertex2d(x+w,y);
        glEnd();

		if(x<0||y<0)
			bDirection=true;
		else if(x>700-w||y>700-h)
			bDirection=false;

		if(bDirection)
		{
			x+=0.1;
			y+=0.1;
		}
		else
		{
			x-=0.1;
			y-=0.1;
		}

        glutSwapBuffers();
}
void Init()
{
        glClearColor(1.0,1.0,1.0,0);
        glColor3f(0.0,0.0,0.0);
        glViewport(0,0,width,height);
        glMatrixMode(GL_PROJECTION);
        glLoadIdentity();
        gluOrtho2D(0,700,0,700);
}
int main()
{
        glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB);
        glutInitWindowSize(width,height);
        glutInitWindowPosition(0,0);
        glutCreateWindow("Example");
        Init();
        glutDisplayFunc(Drawing);
		glutIdleFunc(movie);
        glutMainLoop();
        return 0;
}

الامر بسيط فقط فكر فيه بالبرمجه العاديه بفرض الشكل mybutton

فى داله الرسم

if(mybutton.left >= WINDOW_WIDTH){
		mybutton.left = 300;
		mybutton.top = 200;
		mybutton.right =400;
		mybutton.bottom = 300;
	}else{
		mybutton.right +=1;
	mybutton.left +=1;
	}

بالتوفيق