//natalia@nataliarojas.com
//www.nataliarojas.com
//20-oct-2003

//thanks to Oriol Quin for his icon


BImage c;
int tam;
int currentCol;
int currentFila;
int cuantasFilas, cuantasColumnas;
float marginX, marginY;
int dirX, dirY;
boolean moveX, moveY;

pixel [] pixelsArr;

void setup(){
  size(600, 600);
  colorMode(RGB, 100);
  rectMode(CENTER_DIAMETER);
  noStroke();

  currentCol = 0;
  currentFila = 0;
  c = loadImage("icono.jpg");
  image(c, 0, 0);

  marginX = 180;
  marginY = 180;

  cuantasColumnas = c.width;
  cuantasFilas = c.height;

  pixelsArr = new pixel[c.width*c.height];
  //armar el array con los colores
  for (int i=0; i<c.width*c.height; i++)
  {
    int currentPixel = c.pixels[i];
    pixelsArr[i] = new pixel(red(currentPixel), green(currentPixel), blue(currentPixel), currentFila, currentCol);
    currentCol++;
    if (currentCol==cuantasColumnas) {
      currentCol=0;
      currentFila++;
    }
  }
}

void loop () {
 background(0);
  for (int i=0; i<c.width*c.height; i++){
    pixelsArr[i].pintar();
  }

  if (mouseX!=pmouseX) moveX = true;
  else moveX = false;

  if (mouseY!=pmouseY) moveY = true;
  else moveY = false;

}

class pixel {
  float rojo, verde, azul;
  int id;
  int fila, col;
  float mod;
  float w, h;
  float espacio;
  float dist, currentDist, currentDistX, currentDistY;
  float acc;
  float posX, posY;

  pixel(float r, float v, float a, int f, int c) {
    rojo = r;
    verde = v;
    azul = a;
    col = c;
    fila = f;
    acc = 1.1;
    w = 1;
    h = 1;
    dist = 30;
  }

  void pintar() {
    fill(rojo, verde, azul);
    posX += (marginX-posX)/col;
    posY += (marginY-posY)/fila;
    float x = posX+(col*10);
    float y = posY+(fila*10);
    currentDist = distance(x, y, mouseX, mouseY)/10;
    currentDistX = Math.abs(mouseX-x);
    currentDistY = Math.abs(mouseY-y);

    if (currentDistX<dist)w+=(2*acc);
    else {
      if (w>1)w-=(2*acc);
      else w = 1;
    }

    if (currentDistY<dist)h+=(2*acc);
    else {
      if (h>1)h-=(2*acc);
      else h = 1;
    }

    rect(x, y, h, w);
  }

  float distance(float x1, float y1, float x2, float y2) {
    return sqrt(sq(x1-x2) + sq(y1-y2));
  }

}


void mousePressed() 
{ 
  marginX = mouseX;
  marginY = mouseY;
}