Nahid

#include<windows.h>
#include<GL/glut.h>
#include<stdio.h>
//dynamic
float x1=0.05,x2=0.05,x3=-0.05,x4=-0.05;
float y1=0.05,y2=-0.05,y3=-0.05,y4=0.05;
//right
float Xmin=0.7,Xmax=0.9,Ymin=0.5,Ymax=0.7;
//left
float Xmin1=0.1,Xmax1=0.4,Ymin1=0.7,Ymax1=0.9;
//down --
float Xmin2=-0.3,Ymin2=-0.3,Xmax2=-0.1,Ymax2=-0.1;
float Amax,Amin,Bmax,Bmin;
float dx=0,dy=0;
void display()
{
    glClear(GL_COLOR_BUFFER_BIT);

    //Static  -- right
    glBegin(GL_QUADS);
    glColor3f(1,1,1);
    glVertex2d(Xmin,Ymax);
    glVertex2d(Xmax,Ymax);
    glColor3f(1,0,2);
    glVertex2d(Xmax,Ymin);
    glVertex2d(Xmin,Ymin);
    glEnd();
    glFlush();

    //left
    glBegin(GL_QUADS);
    glColor3f(1,0,1);
    glVertex2d(Xmin1,Ymax1);
    glVertex2d(Xmax1,Ymax1);
    glColor3f(1,1,0);
    glVertex2d(Xmax1,Ymin1);
    glVertex2d(Xmin1,Ymin1);
    glEnd();
    glFlush();

    //Red- below obj------
    glBegin(GL_QUADS);
    glColor3f(1,0,0);
    glVertex2d(Xmin2,Ymax2);
    glVertex2d(Xmax2,Ymax2);
    glVertex2d(Xmax2,Ymin2);
    glVertex2d(Xmin2,Ymin2);
    glEnd();
    glFlush();

    //dynamic
    glColor3f(1,1,1);
    glBegin(GL_QUADS);
    glVertex2d(x1+dx,y1+dy);
    glVertex2d(x2+dx,y2+dy);
    glVertex2d(x3+dx,y3+dy);
    glVertex2d(x4+dx,y4+dy);
    glEnd();
    glFlush();

    glutSwapBuffers();
}
void vanish(int x){
    if(x==1){
        Xmin=0;
        Xmax=0;
        Ymin=0;
        Ymax=0;
    }
    else if(x==2){
        Xmin1=0;
        Xmax1=0;
        Ymin1=0;
        Ymax1=0;
    }
    else if(x==3){
        Xmin2=0;
        Xmax2=0;
        Ymin2=0;
        Ymax2=0;
    }

}
void check()
{
    Amax = x2+dx;
    Bmax = y1+dy;

    Amin = x3+dx;   ///not x1+dx         ///*************
    Bmin = y3+dy;


    /*** for object3 ***/   ///Only this obj is fixed
    if((Amin<=Xmax2) && (Amax>=Xmin2) && (Bmin<=Ymax2) && (Bmax>=Ymin2)){   ///***********
        vanish(3);
    }

    /*** for object1 ***/

    if((Amax>=Xmin)&&(Amax<=Xmax)&&(Bmax>=Ymin)&&(Bmax<=Ymax))
    {
        vanish(1);
    }
    else if((Amax>=Xmin)&&(Amax<=Xmax)&&(Bmin<=Ymax)&&(Bmin>=Ymin))
    {
        vanish(1);
    }

    /*** for object2 ***/
    if((Amax>=Xmin1)&&(Amax<=Xmax1)&&(Bmax>=Ymin1)&&(Bmax<=Ymax1))
    {
        vanish(2);
    }
    else if((Amax>=Xmin1)&&(Amax<=Xmax1)&&(Bmin<=Ymax1)&&(Bmin>=Ymin1))
    {
        vanish(2);
    }








}

void keyboard(unsigned char key,int x, int y)
{
    switch(key)
    {
    case 'w':
    {
        dy=dy+0.01;
        check();
        glutPostRedisplay();
        break;
    }



    case 's':
    {
        dy=dy-0.01;
        check();
        glutPostRedisplay();
        break;
    }

    case 'a':
    {
        dx=dx-0.01;
        check();
        glutPostRedisplay();
        break;
    }

    case 'd':
    {
        dx=dx+0.01;
        check();
        glutPostRedisplay();
        break;
    }
    }
}

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

    glutInit(&argc,argv);
    glutInitWindowSize(600,600);
    glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB);
    glutInitWindowPosition(100,100);
    glutCreateWindow("Cse lab");
    glutDisplayFunc(display);
    glutKeyboardFunc(keyboard);
    glutMainLoop();
    return 0;
}