var yPos=[];

let coolChar = ["⭐"]

var grid = [

    [false, false, false, false, false],

    [false, false, false, false, false],

    [true, false, true, false, true],

    [false, false, false, false, false],

    [false, false, false, false, false]

  ];

function setup() {

  createCanvas(400, 400);

  stroke(255, 0, 0);

    for(let i=0; i<100; i++){

    append(xPos, random(400))

    append(yPos, random(-400,0))

    }

}

​

function draw() {

  var won = true;

   for (var r = 0; r < grid.length; r++)

     for (var c = 0; c < grid[r].length; c++)

      if (grid[r][c] === true)

        won = false;

  if (won === true){

    push();

      background(0,0,0,30);

    fill(0);

    textAlign(CENTER);

    textSize(75);

    text("Good Job!", 200,200);

    pop(0);

      // star array after winning

    let star = random(coolChar);

 var i = 0;

  while (i < xPos.length) {

    let star = random(coolChar);

    text(star, xPos[i], yPos[i]);

    yPos[i]++;

    xPos[i] = xPos[i] + random(-1, 1);

    if (yPos[i] > 400) {

      yPos[i] = 0;

    }

    i++;

  }

    }else

  drawGrid();

}

function mousePressed() {

  let col = int(mouseX / 80);

  let row = int(mouseY / 80);

  flipLight(row,col);

  if(isValid(row - 1,col) === true)

    flipLight(row -1,col);

    if(isValid(row +1,col) === true)

    flipLight(row +1,col);

     if(isValid(row ,col-1) === true)

    flipLight(row ,col-1);

  if(isValid(row ,col+1) === true)

    flipLight(row ,col+1);

}

function flipLight(r, c){

  grid[r][c] =!grid[r][c];

}

function isValid(r, c){

    if (r<0)

    return false;

  if (r>4)

    return false;

  if (c<0)

    return false;

  if (c>4)

    return false;

  return true;  

}

function drawGrid(){

  for (var r = 0; r < grid.length; r++)

    for (var c = 0; c < grid[r].length; c++) {

      let x = c * 80;

      let y = r * 80;

      if (grid[r][c] === false) 

        fill(0);

      else 

        fill(255);

      rect(x, y, 80, 80);

    }

}