//John Conway's Game of Life Clone - by Virgile Grob

static ArrayList<Cell> actors = new ArrayList<Cell>();
final int[] adjOrdx = {-1, 0, 1, 1, 1, 0, -1, -1};
final int[] adjOrdy = {-1, -1, -1, 0, 1, 1, 1, 0};

void setup() {
  fill(255, 100);
  rect(0,0,width,height);
  fill(0, 100);
  actors.add(new Cell(200, 200));
  actors.get(0).isAlive = true;
  actors.add(new Cell(196, 196));
  actors.get(1).isAlive = true;
  actors.add(new Cell(204, 196));
  actors.get(2).isAlive = true;
  actors.add(new Cell(200, 204));
  actors.get(3).isAlive = true;
  actors.add(new Cell(204, 200));
  actors.get(4).isAlive = true;
  frameRate(2);
  size(1200, 800);
}
void draw(){
  fill(255, 255);
  rect(0,0,width,height);
  fill(0, 100);
  if(actors.size() > 0){
    for(int a = 0; a<actors.size(); a++)
      rect(actors.get(a).location.x - 2, actors.get(a).location.y - 2, 4, 4);
    ArrayList<Cell> birth = willBeBorn();
    //System.out.println("There are " + birth.size() + " items in birth.");
    death();
    for(int b = 0; b<birth.size(); b++)
      actors.add(birth.get(b));
    }
}
class Cell{
  PVector location;
  boolean isAlive;
  public Cell(float xloc, float yloc){
    location = new PVector(xloc, yloc);
    isAlive = false;
  }
  public int getNumAdj(){
    int n = 0;
    for(int i=0; i<8; i++)
      for(int a=0; a<actors.size(); a++)
        if((actors.get(a).location.x == location.x+(adjOrdx[i]*4)) && (actors.get(a).location.y == location.y+(adjOrdy[i]*4)))
          n++;
    System.out.println(n);
    return n;
  }
  public boolean willSurvive(){
    if(getNumAdj() == 2 || getNumAdj() == 3)
      return true;
    return false;
  }
  public boolean isntAlreadyAlive(){
    for (int a = 0; a<actors.size(); a++)
      if(actors.get(a).location.x == location.x && actors.get(a).location.y == location.y)
        return false;
    return true;
  }
  public boolean isntAlreadyBorn(ArrayList<Cell> born){
    for (int b = 0; b<born.size(); b++)
      if(born.get(b).location.x == location.x && born.get(b).location.y == location.y)
        return false;
    return true;
  }
  public boolean isBorn(){
    if(getNumAdj() == 3 && isntAlreadyAlive())
      return true;
    return false;
  }
  public ArrayList<Cell> getAdjCells(){
    ArrayList<Cell> adj = new ArrayList<Cell>();
    for(int i=0; i<8; i++)
      adj.add(new Cell(location.x+(adjOrdx[i]*4), location.y+(adjOrdy[i]*4)));
    return adj;
  }


}
public static void death(){
  for(int a=0; a<actors.size(); a++){
    System.out.println(actors.get(a).willSurvive());
    if(!actors.get(a).willSurvive())
      actors.remove(a);
  }
}
public static ArrayList willBeBorn(){
  ArrayList<Cell> temp = new ArrayList<Cell>();
  for(int a = 0; a<actors.size(); a++){
    ArrayList<Cell> adjCells = actors.get(a).getAdjCells();
    for(int b = 0; b<adjCells.size(); b++)
      if(adjCells.get(b).isBorn() && adjCells.get(b).isntAlreadyBorn(temp)){
        adjCells.get(b).isAlive = true;
        temp.add(adjCells.get(b));
      }
  }
  return temp;
}