/****
* Classes
****/
//<Assets used in the game will automatically appear here>
//<Write imports for supported plugins here>
// Dino class representing the player character
var Dino = Container.expand(function () {
  var self = Container.call(this);
  var dinoGraphics = self.attachAsset('dino', {
    anchorX: 0.5,
    anchorY: 0.5
  });
  self.isJumping = false;
  self.isDucking = false;
  self.jumpSpeed = -20;
  self.gravity = 1;
  self.yVelocity = 0;
  self.update = function () {
    if (self.isJumping) {
      self.yVelocity += self.gravity;
      self.y += self.yVelocity;
      if (self.y >= 200) {
        // Ground level
        self.y = 200;
        self.isJumping = false;
        self.yVelocity = 0;
      }
    }
  };
  self.jump = function () {
    if (!self.isJumping) {
      self.isJumping = true;
      self.yVelocity = self.jumpSpeed;
    }
  };
  self.duck = function (isDucking) {
    self.isDucking = isDucking;
    dinoGraphics.scaleY = isDucking ? 0.5 : 1;
  };
});
// Obstacle class for cacti and birds
var Obstacle = Container.expand(function () {
  var self = Container.call(this);
  var obstacleGraphics = self.attachAsset('obstacle', {
    anchorX: 0.5,
    anchorY: 0.5
  });
  self.speed = -10;
  self.update = function () {
    self.x += self.speed;
    if (self.x < -100) {
      self.destroy();
    }
  };
});

/****
* Initialize Game
****/
var game = new LK.Game({
  backgroundColor: 0x87CEEB // Sky blue background
});

/****
* Game Code
****/
var dino = game.addChild(new Dino());
dino.x = 200;
dino.y = 200;
var obstacles = [];
var score = 0;
var scoreTxt = new Text2('0', {
  size: 100,
  fill: 0xFFFFFF
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
function spawnObstacle() {
  var obstacle = new Obstacle();
  obstacle.x = 2048;
  obstacle.y = Math.random() > 0.5 ? 200 : 150; // Randomly place on ground or slightly above
  obstacles.push(obstacle);
  game.addChild(obstacle);
}
game.down = function (x, y, obj) {
  dino.jump();
};
game.up = function (x, y, obj) {
  dino.duck(false);
};
game.update = function () {
  dino.update();
  for (var i = obstacles.length - 1; i >= 0; i--) {
    obstacles[i].update();
    if (dino.intersects(obstacles[i])) {
      LK.effects.flashScreen(0xff0000, 1000);
      LK.showGameOver();
    }
    if (obstacles[i].x < -100) {
      obstacles[i].destroy();
      obstacles.splice(i, 1);
      score++;
      scoreTxt.setText(score);
    }
  }
  if (LK.ticks % 120 == 0) {
    spawnObstacle();
  }
};