/**** 
* Classes
****/ 
// Define a class for enemies
var Enemy = Container.expand(function () {
	var self = Container.call(this);
	var enemyGraphics = self.attachAsset('enemy', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 5;
	self.passed = false; // Flag to track if player passed this enemy
	self.update = function () {
		self.x -= self.speed;
		if (self.x < -50) {
			self.destroy();
		}
	};
});
// Define a class for the player character
var Player = Container.expand(function () {
	var self = Container.call(this);
	var playerGraphics = self.attachAsset('player_run1', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 5; // Not used currently, but kept for potential horizontal movement
	self.jumpHeight = 50; // Higher jump for better feel
	self.isJumping = false;
	self.velocityY = 0;
	self.runFrames = ['player_run1', 'player_run2', 'player_run3'];
	self.runFrameIndex = 0;
	self.runFrameCounter = 0; // Counter to control animation speed
	self.runFrameDelay = 8; // Update run frame every 8 updates (~7.5 FPS at 60 FPS)
	self.update = function () {
		if (self.isJumping) {
			// Handle jumping physics
			self.y += self.velocityY;
			self.velocityY += 0.8; // Slightly stronger gravity
			if (self.y >= 2732 / 2) {
				// Landed on ground
				self.y = 2732 / 2;
				self.isJumping = false;
				self.velocityY = 0;
				// Switch back to running animation
				playerGraphics.destroy();
				playerGraphics = self.attachAsset(self.runFrames[self.runFrameIndex], {
					anchorX: 0.5,
					anchorY: 0.5
				});
			}
		} else {
			// Handle running animation
			self.runFrameCounter++;
			if (self.runFrameCounter >= self.runFrameDelay) {
				self.runFrameIndex = (self.runFrameIndex + 1) % self.runFrames.length;
				playerGraphics.destroy();
				playerGraphics = self.attachAsset(self.runFrames[self.runFrameIndex], {
					anchorX: 0.5,
					anchorY: 0.5
				});
				self.runFrameCounter = 0;
			}
		}
	};
	self.jump = function () {
		if (!self.isJumping) {
			self.isJumping = true;
			self.velocityY = -self.jumpHeight;
			playerGraphics.destroy();
			playerGraphics = self.attachAsset('player_jump', {
				anchorX: 0.5,
				anchorY: 0.5
			});
		}
	};
});

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

/**** 
* Game Code
****/ 
var background = game.addChild(LK.getAsset('background', {
	anchorX: 0,
	anchorY: 0
}));
background.x = 0;
background.y = 0;
// Initialize player
var player = game.addChild(new Player());
player.x = 2048 / 2; // Center horizontally
player.y = 2732 / 2; // Ground level
// Initialize enemies
var enemies = [];
var enemySpawnInterval = 100; // Initial spawn interval
var enemySpawnCounter = 0;
// Create a new Text2 object to display the score
var scoreText = new Text2('0', {
	size: 100,
	fill: 0xFFFFFF
});
// Add the score text to the game GUI at the top center of the screen
LK.gui.top.addChild(scoreText);
scoreText.x = 2048 / 2;
scoreText.y = 0;
// Handle game updates
game.update = function () {
	player.update();
	// Spawn enemies
	enemySpawnCounter++;
	if (enemySpawnCounter >= enemySpawnInterval) {
		var enemy = new Enemy();
		enemy.x = 2048; // Start at right edge
		enemy.y = 2732 / 2; // Ground level
		enemies.push(enemy);
		game.addChild(enemy);
		// Randomize next spawn interval
		enemySpawnInterval = Math.floor(Math.random() * 150) + 50;
		enemySpawnCounter = 0;
	}
	// Update enemies and check collisions
	for (var j = enemies.length - 1; j >= 0; j--) {
		enemies[j].update();
		if (player.intersects(enemies[j])) {
			LK.effects.flashScreen(0xff0000, 1000); // Red flash on collision
			LK.showGameOver();
		} else if (player.x > enemies[j].x && !enemies[j].passed) {
			enemies[j].passed = true;
			LK.setScore(LK.getScore() + 1);
			scoreText.setText(LK.getScore());
		}
		// Clean up destroyed enemies
		if (enemies[j].x < -50) {
			enemies.splice(j, 1);
		}
	}
};
// Handle player jump on input
game.down = function (x, y, obj) {
	player.jump();
};