float x,y,a,b,p,q,w,z;
float x_speed,y_speed,a_speed,b_speed,p_speed,q_speed,w_speed,z_speed;
int x_direction,y_direction,a_direction,b_direction,p_direction,q_direction,w_direction,z_direction;

void setup(){

  size(300,300);

  //object1
  x_direction=1;
  y_direction=1;
  x_speed=1.2;
  y_speed=1.8;

  //object2
  a_direction=1;
  b_direction=1;
  a_speed=1.9;
  b_speed=1.3;

  //object3
  p_direction=1;
  q_direction=1;
  p_speed=0.5;
  q_speed=2.3;

  //object4
  w_direction=1;
  z_direction=1;
  w_speed=1.1;
  z_speed=0.07;

}

void loop(){

  background(255,255,255);

  DrawObject1();
  DrawObject2();
  DrawObject3();
  DrawObject4();

}
//object1

void DrawObject1(){
  x= x + x_direction*x_speed;
  y= y + y_direction*y_speed;

  rect(x,y,30,30);
  stroke(x,y,a);
  line(x,y,a,b);

  //bounce
  if(x>300-30 || x<0){
    x_direction = x_direction*-1;
  }

  if(y>300-30 || y<0){
    y_direction = y_direction*-1;
  }

}
//object2
void DrawObject2(){
  a= a + a_direction*a_speed;
  b= b + b_direction*b_speed;

  rect(a,b,10,10);
  stroke(a,b,p);
  line(a,b,p,q);

  //bounce
  if(a>300-10 || a<0){
    a_direction = a_direction*-1;
  }

  if(b>300-10 || b<0){
    b_direction = b_direction*-1;
  }

}

//object3
void DrawObject3(){
  p= p + p_direction*p_speed;
  q= q + q_direction*q_speed;
  rect(p,q,5,5);
  stroke(p,q,w);
  line(p,q,w,z);

  //bounce
  if(p>300-5|| p<0){
    p_direction = p_direction*-1;
  }

  if(q>300-5 || q<0){
    q_direction = q_direction*-1;
  }

}
//object4
void DrawObject4(){
  w= w + w_direction*w_speed;
  z= z + z_direction*z_speed;
  rect(w,z,7,7);
  stroke(w,z,x);
  line(w,z,x,y);

  //bounce

  if(w>300-7 || w<0){
    w_direction = w_direction*-1;
  }

  if(z>300-7 || z<0){
    z_direction = z_direction*-1;
  }

}