NEW glut colision detect wersion for windows 7

/*wersja na windows 7 */
#include <GL/glut.h>
#include <stdlib.h>

/*
C:\TDM-GCC-32>g++ -o test.exe test.cpp -lopengl32 -lglut32

C:\TDM-GCC-32>test


sprawdz instalacje glut for windows
*/
GLfloat d = 0.1;
int refreshMillis = 30;

struct kulka
{    
           
GLfloat x;
GLfloat y ;

} kulka={0.0, -0.5} , wall= {1.0 , 1.0} , speed= {0.03, 0.04}, quad;
           



GLfloat x2 , y2=-0.7;

int menu = 0;

void drawBall2(GLfloat x2,  GLfloat y2)
{

    glColor3f(1.0,0.0,.0);

    glPushMatrix();

    glTranslatef(x2, y2,0.0);

    glutSolidSphere(d,20,20);

    glPopMatrix();


}
void keyboard (unsigned char key, int x, int y ) 
{



switch (key) {
case 'd':
x2=x2+0.1;
glutPostRedisplay();
break;
case 'a':
x2=x2-0.1;
glutPostRedisplay();
break;
case 'w':
y2=y2+0.1;
glutPostRedisplay();
break;
case 's':
y2=y2-0.1;
glutPostRedisplay();
break;

}
}


void drawBall1()
{

    glColor3f(0.0,1.0,.0);

    glPushMatrix();

    glTranslatef(kulka.x,kulka.y,0.0);

    glutSolidSphere(d,20,20);

    glPopMatrix();
}


void update()
{

kulka.x+=speed.x;
kulka.y+=speed.y;


if (kulka.x>wall.x)
{
speed.x=-speed.x;
}
if ( kulka.y>wall.y)
{
speed.y=-speed.y;
}
  if(kulka.x<-wall.x)
 {
speed.x=-speed.x;
}

if((  kulka.y<d + y2) && (kulka.x <d +x2  )&& (x2-kulka.x<d) )
{

speed.y=-speed.y;
}


}

void Display()
{
  
    glClearColor( 1.0, 1.0, 1.0, 1.0 );
  
   
    glClear( GL_COLOR_BUFFER_BIT );
  
   
    glColor3f( 1.0, 0.0, 0.0 );
  
   
 int w, h;
drawBall2(x2, y2);  
drawBall1();
update();

  
    glFlush();
  
   
    glutSwapBuffers();
}



void Reshape( int width, int height )
{
   
    Display();
}



void Timer(int value)         
 {
   glutPostRedisplay();   
   glutTimerFunc(refreshMillis, Timer, 0);
}

int main( int argc, char * argv[] )
{
   
    glutInit( & argc, argv );
  
 
    glutInitDisplayMode( GLUT_DOUBLE | GLUT_RGB );
  
 
    glutInitWindowSize( 400, 400 );
  
  
    glutCreateWindow( "Kwadrat 1" );
  
 
    glutDisplayFunc( Display );
  
  
    glutReshapeFunc( Reshape );
    glutKeyboardFunc(keyboard);
 
 
   glutTimerFunc(0, Timer, 0);

    glutMainLoop();
    return 0;
}