int BOARDSIZE = 3;
float SPACING;
float RADIUS;
float CORNER;


Spot spots[][]  = new Spot[10][10];


int shuffle = 0;

void keyPressed(){
  if(key >= '3' && key <= '9'){
     BOARDSIZE = key - '0'; 
reset();   
} else BOARDSIZE = 3;
  
if(key == ' '){
reset();
}
  
   
}
void reset(){
    RADIUS = (500 / BOARDSIZE) / 2;
  SPACING = RADIUS * 2;
  CORNER = RADIUS;
  RADIUS *= .8;
  
     for(int i = 0; i <  BOARDSIZE;i++){
     for(int j = 0; j <  BOARDSIZE;j++){
         spots[i][j] = new Spot(j,i);
        // println("made "+i+" "+j);
     }
     }
    shuffle = 100;
}

void setup(){
   size(500,500);

   reset();
}
boolean gameIsWon = false;

void draw(){
  if(shuffle-- > 0){
    int x = floor(random(BOARDSIZE));
    int y = floor(random(BOARDSIZE));
    
      spots[x][y].toggle(true);
  }
  
  gameIsWon = checkForWin();
  
  background(50,50,100);
    for(int i = 0; i <  BOARDSIZE;i++){
     for(int j = 0; j <  BOARDSIZE;j++){
        Spot s = spots[i][j];
        s.draw();
        
     }     
   }   
}

boolean checkForWin(){
   for(int i = 0; i <  BOARDSIZE;i++){
     for(int j = 0; j <  BOARDSIZE;j++){
        Spot s = spots[i][j];
        if(!s.lit) return false;
     }     
   }  
   return true;
}


void mousePressed(){
    for(int i = 0; i <  BOARDSIZE;i++){
     for(int j = 0; j <  BOARDSIZE;j++){
        Spot s = spots[i][j];
        if(s.isMouseIn()){
           clickToggle(i,j); 
        }
        
     }     
   }    
}

void clickToggle(int x, int y){
  checkToggle(x,y);
  checkToggle(x-1,y);
  checkToggle(x+1,y);
  checkToggle(x,y-1);
  checkToggle(x,y+1);  
   
}
void checkToggle(int x, int y){
   if(inBoard(x,y)) spots[x][y].toggle(true); 
}

boolean inBoard(int i, int j){
 return (i >= 0 && i < BOARDSIZE && j >= 0 && j < BOARDSIZE) ; 
}


class Spot {
  boolean lit = true;
  float x,y,dx,dy;
  float angle = -PI/2;
  float anglespeed;
  Spot(float px, float py){
    x = px; y = py;
    dx = CORNER + x * SPACING;
   dy =  CORNER + y * SPACING;
    
  }
  void toggle(boolean spin){
     lit = !lit; 
     if(spin){
        if(lit) kick();
       else anglespeed = 0; 
     }
  }
  void kick(){
   anglespeed += random(.05,.2); 
  }
  void draw(){
    if(gameIsWon) {
        stroke(255); 
        anglespeed = .05;
    } else {
      stroke(0);
    }

    if(anglespeed > 0){
       anglespeed -= .001;
      angle += anglespeed; 
    }
    strokeWeight(2); 

     noFill();
     ellipse(dx,dy,RADIUS*2,RADIUS*2); 
     drawStar(dx,dy,RADIUS,angle);
  }
  boolean isMouseIn(){
    if(dist(dx,dy,mouseX,mouseY) < RADIUS){
     return true; 
    }
    return false;
  }
  
  

void drawStar(float x, float y, float size, float angle) {
    if(lit) fill(255, 255, 0);
    else fill(30,30,0);
    noStroke();
    pushMatrix();
    translate(x, y);
    beginShape();
    vertex(cos(angle) * size, sin(angle)*size);
    vertex(cos(angle + TWO_PI*.4) * size, sin(angle+ TWO_PI*.4)*size);
    vertex(cos(angle + TWO_PI*.8) * size, sin(angle+ TWO_PI*.8)*size);
    vertex(cos(angle + TWO_PI*.2) * size, sin(angle+ TWO_PI*.2)*size);
    vertex(cos(angle + TWO_PI*.6) * size, sin(angle+ TWO_PI*.6)*size);
    endShape(CLOSE);
    popMatrix();
  }

}