PImage img;
color[] imageColors;
int[][] myArray;

void setup()
{
  size(400,400);
  //read color palette from a color image
  img = loadImage("colpalette-A.jpg");
  imageColors = new color[10];
  for(int x = 0; x < 10; x+=1){
    imageColors[x] = img.get(x*10+1,5);
  }
  int row = 20, col = 20;
  myArray = new int[row][];
  for(int i = 0; i < row; i = i + 1){
    myArray[i] = new int[col];
    for(int j = 0; j < col; j = j + 1){
      myArray[i][j] = round(random(10));
    } 
  }
}

void draw()
{
  float rad;
  background(200);//clean up the background

  for(int i= 0; i<myArray.length; i++){
    for(int j =0; j<myArray[i].length; j++){
      float d = dist(i*20 + 10, j*20 + 10, mouseX, mouseY);
      if(d<70){
        rad = myArray[i][j] + 500/(d+1); 
        fill(imageColors[i*j%10],80);
      }
      else
      {
        rad = myArray[i][j];
        fill(220);
      }
      noStroke();
      ellipse(i*20 + 10,j*20 + 10,rad,rad);   
    }
  }
}