/****
* Classes
****/
// Assets will be automatically created based on usage in the code.
// Flea class
var Flea = Container.expand(function () {
  var self = Container.call(this);
  var fleaGraphics = self.attachAsset('flea', {
    anchorX: 0.5,
    anchorY: 0.5
  });
  self.speed = 5;
  self.move = function () {
    self.x += self.speed;
  };
});
// Wall class
var Wall = Container.expand(function () {
  var self = Container.call(this);
  var wallGraphics = self.attachAsset('wall', {
    anchorX: 0.5,
    anchorY: 0.5
  });
  self.health = 3;
  self.hit = function () {
    self.health -= 1;
    if (self.health <= 0) {
      self.destroy();
    }
  };
});

/****
* Initialize Game
****/
var game = new LK.Game({
  backgroundColor: 0x000000 // Init game with black background 
});

/****
* Game Code
****/
var fleas = [];
var walls = [];
// Create walls
for (var i = 0; i < 5; i++) {
  var wall = new Wall();
  wall.x = 500 + i * 300;
  wall.y = game.height / 2;
  game.addChild(wall);
  walls.push(wall);
}
// Flea button
var fleaButton = LK.getAsset('fleaButton', {
  anchorX: 0.5,
  anchorY: 0.5,
  x: 100,
  y: game.height - 100
});
game.addChild(fleaButton);
fleaButton.on('down', function () {
  var flea = new Flea();
  flea.x = 100;
  flea.y = game.height - 200;
  game.addChild(flea);
  fleas.push(flea);
});
// Handle game logic on tick
LK.on('tick', function () {
  // Move fleas
  for (var i = fleas.length - 1; i >= 0; i--) {
    fleas[i].move();
    // Check collision with walls
    for (var j = walls.length - 1; j >= 0; j--) {
      if (fleas[i].intersects(walls[j])) {
        walls[j].hit();
        fleas[i].destroy();
        fleas.splice(i, 1);
        break;
      }
    }
    // Remove off-screen fleas
    if (fleas[i] && fleas[i].x > game.width + 50) {
      fleas[i].destroy();
      fleas.splice(i, 1);
    }
  }
});
// Note: The game automatically handles game over, pause, and other system events.