function Game(canvas, initCredits) {
  this.grid = null;
  this.player = null;
  this.credits = initCredits;
  this.enemies = [];
  this.bombs = [];
  this.canvas = canvas;
  this.ctx = this.canvas.getContext('2d');
  this.gameOver = false;
  this.winner = false;
}

movePlayer()
plantBomb()
moveEnemies()
dead()
checkIfWinner()
startLoop()
explosion()
clearCanvas()
updateCanvas()
setGameOverCallBack() 
setGameOverWithLifesCallBack()
setWinnerCallBack()

function Player(canvas){
  this.posX = 1;
  this.posY = 1;
  this.bombsAvailable = 4;
  this.speed = 1;
  this.canvas = canvas;
  this.ctx = this.canvas.getContext('2d');
}

move()
nextPosition()
addBombsAvailable()
reduceBombsAvailable()

function Enemy(canvas, initX, initY){
  this.posX = initX;
  this.posY = initY;
  this.speed = 750; //milliSeconds by square;
  this.lastMove = Date.now();
  this.canvas = canvas;
  this.ctx = this.canvas.getContext('2d');
  this.enemyImage = new Image();
  this.enemyImage.src = "./img/enemy.png";
}

canIMoveNow()
move()
NextPosition()
print()
kills()
GenerateRandomMovement()

function Grid(canvas){

  this.board = [[],[],[],[],[],[],[],[],[],[],[],[],[],[]];
  this.canvas = canvas;
  this.ctx = this.canvas.getContext('2d');
  this.wallImage = new Image();
  this.woodImage = new Image();
  this.groundImage = new Image();
  this.bombermanImage = new Image();
  this.bombImage = new Image();
  this.fireImage = new Image();
  this.enemyImage = new Image();
}

Grid.prototype.configureBoard()
Grid.prototype.getCellElement()
Grid.prototype.removeFromGrid()
Grid.prototype.putInGrid()

function Bomb (canvas, x, y) {

  this.posX = x;
  this.posY = y;
  this.range = 4;
  this.timer = 2500;  //milliSeconds
  this.durationExplosion = 1000;  //milliSeconds
  this.startTimer = Date.now();
  this.hasExploded = false;
  this.fireCells = [];
  this.canvas = canvas;
  this.ctx = this.canvas.getContext('2d');
  this.bombImage = new Image();
  this.fireImage = new Image();
}

print()
printFire()
checkIfExplodes()
makeExplode()
checkRemoveFire()
getFireCells()