// JESSICA PORRETTA
// PROBLEM SET 4
// REMIX OF PUSHPOPCUBES

/**
 * Color controlled by mouse over animation
 */

// Spiral Staircase
// Changes color when mouse goes over animation

// Cube class required
float ang;
int rows = 20;
int cols = 10;
int cubeCount = rows*cols;
int colSpan, rowSpan;
float rotspd = 2.0;
Cube[] cubes = new Cube[cubeCount];
float[] angs = new float[cubeCount];
float[] rotvals = new float[cubeCount];

void setup(){
  size(744, 744, P3D);

  colSpan = width/(cols-3);
  rowSpan = height/(rows-1);
  noStroke(); 

  // instantiate cubes
  for (int i = 0; i < cubeCount; i++){
    cubes[i] = new Cube(43, 12, 46, 30, 100, 100);

    rotvals[i] = rotspd += 0.01;
  }
}

void draw(){
  int cubeCounter = 0;
  background(0);
  fill(255, 255, 255);

  // Different colored lights
  // As the mouse moves over the image, the color changes
  pointLight(150, mouseX, 200, width/4, height/3, 120); 
  pointLight(50, mouseY, 200,  width/4, height/3, -150);

  // Light in animation
  ambientLight(0, 30, 23); 

  // Translate, rotate and draw cubes
  for (int i = 0; i < cols; i++){
    for (int j = 0; j < rows; j++){
      pushMatrix();

      translate(i * colSpan, j * rowSpan, -30);
      //rotate each cube around y and x axes
      rotateY(radians(angs[cubeCounter]));
      rotateX(radians(angs[cubeCounter]));
      cubes[cubeCounter].drawCube();
      popMatrix();
      cubeCounter++;
    }
  }
  // Angs used in rotate function calls above
  for (int i = 0; i < cubeCount; i++){
    angs[i] += rotvals[i];
  }
}

// Simple Cube class, based on Quads
class Cube {

  // Properties
  int w, h, d;
  int shiftX, shiftY, shiftZ;

  // Constructor
  Cube(int w, int h, int d, int shiftX, int shiftY, int shiftZ){
    this.w = w;
    this.h = 50;
    this.d = 40;
    this.shiftX = shiftX;
    this.shiftY = shiftY;
    this.shiftZ = shiftZ;
  }

  void drawCube(){

    // Front face
    beginShape(QUADS);
    vertex(-w*2 + shiftX, -h/2 + shiftY, -d/2 + shiftZ); 
    vertex(w + shiftX, -h/2 + shiftY, -d/2 + shiftZ); 
    vertex(w + shiftX, h + shiftY, -d/2 + shiftZ); 
    vertex(-w*2 + shiftX, h + shiftY, -d/2 + shiftZ); 

    // Back face
    vertex(-w*2 + shiftX, -h/2 + shiftY, d + shiftZ); 
    vertex(w + shiftX, -h/2 + shiftY, d + shiftZ); 
    vertex(w + shiftX, h + shiftY, d + shiftZ); 
    vertex(-w*2 + shiftX, h + shiftY, d + shiftZ);

    // Left face
    vertex(-w*2 + shiftX, -h/2 + shiftY, -d/2 + shiftZ); 
    vertex(-w*2 + shiftX, -h/2 + shiftY, d + shiftZ); 
    vertex(-w*2 + shiftX, h + shiftY, d + shiftZ); 
    vertex(-w*2 + shiftX, h + shiftY, -d/2 + shiftZ); 

    // Right face
    vertex(w + shiftX, -h/2 + shiftY, -d/2 + shiftZ); 
    vertex(w + shiftX, -h/2 + shiftY, d + shiftZ); 
    vertex(w + shiftX, h + shiftY, d + shiftZ); 
    vertex(w + shiftX, h + shiftY, -d/2 + shiftZ); 

    // Top face
    vertex(-w*2 + shiftX, -h/2 + shiftY, -d/2 + shiftZ); 
    vertex(w + shiftX, -h/2 + shiftY, -d/2 + shiftZ); 
    vertex(w + shiftX, -h/2 + shiftY, d + shiftZ); 
    vertex(-w*2 + shiftX, -h/2 + shiftY, d + shiftZ); 

    // Bottom face
    vertex(-w*2 + shiftX, h + shiftY, -d*2 + shiftZ); 
    vertex(w + shiftX, h + shiftY, -d*2 + shiftZ); 
    vertex(w + shiftX, h + shiftY, d + shiftZ); 
    vertex(-w*2 + shiftX, h + shiftY, d + shiftZ); 
    endShape(); 
  }
}