import processing.opengl.*;
int squareSize=100;
float spin,tilt;
PImage a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t;
void setup(){
  size(800,600,OPENGL);
  a =loadImage("1.jpg");
  b =loadImage("2.jpg");
  c =loadImage("3.jpg");
  d =loadImage("4.jpg");
  e =loadImage("5.jpg");
  f =loadImage("6.jpg");
  g =loadImage("7.jpg");
  h =loadImage("8.jpg"); 
  i =loadImage("9.jpg");
  j =loadImage("10.jpg");
  k =loadImage("11.jpg");
  l =loadImage("12.jpg");
  m =loadImage("13.jpg");
  n =loadImage("14.jpg");
  o =loadImage("15.jpg");
  p =loadImage("16.jpg");
  q =loadImage("17.jpg");
  r =loadImage("18.jpg");
  s =loadImage("19.jpg");
  t =loadImage("20.jpg");


}

void draw(){

  background(128,128,128);
  fill(255,255);
  //noCursor();
  if (mousePressed==false){
spin=radians(mouseX);
  }
  else {
tilt=radians(mouseY);
  }
  rotateY(tilt);
  rotateX(spin);
  //1st row of rects
  pushMatrix();
  translate(width/2,height/2-250,mouseY*10);
 
  smooth();
  //rotate(PI/5);
  image(a,squareSize,squareSize);
  translate(0,0,-200);
  image(b,squareSize,squareSize);
  translate(0,0,-400);
  image(c,squareSize,squareSize);
  translate(0,0,-600);
  image(d,squareSize,squareSize);
  translate(0,0,-800);
  image(e,squareSize,squareSize);
  translate(0,0,-1000);
  image(f,squareSize,squareSize);
  translate(0,0,0);
  image(g,squareSize,squareSize);
  popMatrix();

  //2nd row of rects top left  
  pushMatrix();
  translate(width/2-350,height/2,mouseY*10);
  smooth();
  //rotate(PI/5);
  image(h,squareSize,squareSize);
  translate(0,0,-200);
  image(i,squareSize,squareSize);
  translate(0,0,-400);
  image(j,squareSize,squareSize);
  translate(0,0,-600);
  image(k,squareSize,squareSize);
  translate(0,0,-800);
  image(l,squareSize,squareSize);
  translate(0,0,-1000);
  image(m,squareSize,squareSize);
  translate(0,0,0);
  image(n,squareSize,squareSize);
  popMatrix();

  //3rd row of rects
  pushMatrix();
  translate(width/2,height/2,mouseY*10);
  smooth();
  //rotate(PI/5);
  image(o,squareSize,squareSize);
  translate(0,0,-200);
  image(p,squareSize,squareSize);
  translate(0,0,-400);
  image(q,squareSize,squareSize);
  translate(0,0,-600);
  image(r,squareSize,squareSize);
  translate(0,0,-800);
  image(s,squareSize,squareSize);
  translate(0,0,-1000);
  image(t,squareSize,squareSize);
  translate(0,0,0);
  image(c,squareSize,squareSize);
  popMatrix();

  //4th row of rects bottom right
  pushMatrix();
  translate(width/2-350,height/2-250,mouseY*10);
  smooth();
  //rotate(PI/5);
  image(f,squareSize,squareSize);
  translate(0,0,-200);
  image(j,squareSize,squareSize);
  translate(0,0,-400);
  image(m,squareSize,squareSize);
  translate(0,0,-600);
  image(e,squareSize,squareSize);
  translate(0,0,-800);
  image(h,squareSize,squareSize);
  translate(0,0,-1000);
  image(c,squareSize,squareSize);
  translate(0,0,0);
  image(p,squareSize,squareSize);
  rectMode(CENTER);
  popMatrix();
}