float rotx;
float roty;
float stagez = -500;
int numPics = 24; 
PImage[] images = new PImage[numPics];
PImage[] imcube1 = new PImage[6];
PImage[] imcube2 = new PImage[6];
PImage[] imcube3 = new PImage[6];
PImage[] imcube4 = new PImage[6];
Cube c1 = new Cube();
Cube c2 = new Cube();
Cube c3 = new Cube();
Cube c4 = new Cube();


void setup() {
  imageMode(CENTER);
  size(640, 480, P3D);
  for(int i = 0; i < numPics; i++) {
  images[i] = loadImage(i + ".jpg" ); 
   }
}
   
 
void draw() {
 translate(mouseX, mouseY, stagez); 
  background(0);
  noStroke();
 // roty += 0.01;
  rotateX(rotx);
  rotateY(roty);


  loadimages(images);
 
  c1.drawcube(0, 100, 0, imcube1);
  c2.drawcube(-200, -100, -300, imcube2);
  c3.drawcube(300, 200, 100, imcube3);
  c4.drawcube(200, -300, -200, imcube4);
   
}

  void loadimages(PImage[] imagearray) {
      
  for(int a = 0; a <6; a++) {
    imcube1[a] = images[a]; 
  }
  for(int k = 0; k <6; k++) {
    imcube2[k] = images[k+6]; 
  }
  for(int b = 0; b <6; b++) {
    imcube3[b] = images[b+12]; 
  }
  for(int c = 0; c <6; c++) {
    imcube4[c] = images[c+18]; 
  }       
      
 }


class Cube {
  float xpos, ypos, zpos;

  Cube () {
      }
      

void drawcube(float x, float y, float z, PImage[] imarray) {
    xpos = x;
    ypos = y;
    zpos = z;
 
 
    
  translate(xpos, ypos, zpos); 
  for(int j = 0; j<4; j++) {
  pushMatrix();
  translate(0, 0,100);
  image(imarray[j],0,0);
  popMatrix();
  rotateY(PI/2);
  }
 
  rotateX(PI/2);
  pushMatrix();
  translate(0, 0, 100);
  image(imarray[5],0,0);
  popMatrix();
  rotateX(PI);
  pushMatrix();
  translate(0, 0, 100);
  image(imarray[4],0,0);
  popMatrix(); 
 
}


}//class
void mouseDragged() {
  float rate = 0.01;
  rotx += (pmouseY-mouseY) * rate;
  roty += (mouseX-pmouseX) * rate;
}

void keyPressed() {
    if (keyCode == UP) {
    stagez += 10;
  } 
  if (keyCode == DOWN) {
    stagez -= 10;
  } 
  if (keyCode == LEFT) {
   roty += 0.01;
  } 
  
    if (keyCode == RIGHT) {
   roty -= 0.01;
  } 
}