/****
* Classes
****/
// The assets will be automatically created and loaded by the LK engine based on their usage in the code.
// We will use a fish shape and obstacles in the game.
// Fish class representing the player character
var Fish = Container.expand(function () {
  var self = Container.call(this);
  var fishGraphics = self.attachAsset('fish', {
    anchorX: 0.5,
    anchorY: 0.5
  });
  self.gravity = 0.5;
  self.lift = -10;
  self.velocity = 0;
  // Update function to apply gravity and lift
  self.update = function () {
    self.velocity += self.gravity;
    self.y += self.velocity;
    // Prevent fish from going off the top of the screen
    if (self.y < 0) {
      self.y = 0;
      self.velocity = 0;
    }
  };
  // Function to make the fish jump
  self.jump = function () {
    self.velocity = self.lift;
  };
});
// Obstacle class representing the obstacles the fish must avoid
var Obstacle = Container.expand(function () {
  var self = Container.call(this);
  var obstacleGraphics = self.attachAsset('obstacle', {
    anchorX: 0.5,
    anchorY: 0.5
  });
  self.speed = -5;
  // Update function to move the obstacle
  self.update = function () {
    self.x += self.speed;
    // Remove obstacle if it goes off screen
    if (self.x < -obstacleGraphics.width) {
      self.destroy();
    }
  };
});

/****
* Initialize Game
****/
var game = new LK.Game({
  backgroundColor: 0x87CEEB // Light blue background to represent the sky
});

/****
* Game Code
****/
// Initialize game variables
var fish = game.addChild(new Fish());
fish.x = 2048 / 4; // Start fish at 1/4th of the screen width
fish.y = 2732 / 2; // Center fish vertically
var obstacles = [];
var score = 0;
var scoreTxt = new Text2('0', {
  size: 150,
  fill: "#ffffff"
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
// Function to create a new obstacle
function createObstacle() {
  var obstacle = new Obstacle();
  obstacle.x = 2048;
  obstacle.y = Math.random() * 2732; // Random vertical position
  obstacles.push(obstacle);
  game.addChild(obstacle);
}
// Handle game updates
game.update = function () {
  fish.update();
  // Check for collisions with obstacles
  for (var i = obstacles.length - 1; i >= 0; i--) {
    obstacles[i].update();
    if (fish.intersects(obstacles[i])) {
      LK.effects.flashScreen(0xff0000, 1000);
      LK.showGameOver();
    }
    // Remove off-screen obstacles
    if (obstacles[i].x < -obstacles[i].width) {
      obstacles[i].destroy();
      obstacles.splice(i, 1);
      score++;
      scoreTxt.setText(score);
    }
  }
  // Create new obstacles periodically
  if (LK.ticks % 120 == 0) {
    createObstacle();
  }
  // Check if fish falls below the screen
  if (fish.y > 2732) {
    LK.effects.flashScreen(0xff0000, 1000);
    LK.showGameOver();
  }
};
// Handle touch events to make the fish jump
game.down = function (x, y, obj) {
  fish.jump();
};