/**** 
* Plugins
****/ 
var tween = LK.import("@upit/tween.v1");
var storage = LK.import("@upit/storage.v1");

/**** 
* Classes
****/ 
var BTSMember = Container.expand(function (memberType) {
	var self = Container.call(this);
	// Member stats
	self.memberType = memberType || 'rm';
	self.jumpPower = 15;
	self.speed = 0;
	self.isJumping = false;
	self.groundY = 2400;
	self.velocityY = 0;
	self.gravity = 0.8;
	// Special abilities per member
	switch (self.memberType) {
		case 'suga':
			self.speedBoost = 1.2;
			break;
		case 'jhope':
			self.jumpPower = 18;
			break;
		case 'jin':
			self.hasShield = true;
			break;
		default:
			self.speedBoost = 1.0;
	}
	var memberGraphics = self.attachAsset(self.memberType, {
		anchorX: 0.5,
		anchorY: 1.0
	});
	self.jump = function () {
		if (!self.isJumping) {
			self.velocityY = -self.jumpPower;
			self.isJumping = true;
			LK.getSound('jump').play();
		}
	};
	self.update = function () {
		// Apply gravity
		if (self.isJumping) {
			self.velocityY += self.gravity;
			self.y += self.velocityY;
			// Check if landed
			if (self.y >= self.groundY) {
				self.y = self.groundY;
				self.isJumping = false;
				self.velocityY = 0;
			}
		}
		// Slight animation bobbing when running
		if (!self.isJumping) {
			memberGraphics.y = Math.sin(LK.ticks * 0.3) * 3;
		}
	};
	return self;
});
var Fan = Container.expand(function () {
	var self = Container.call(this);
	var fanGraphics = self.attachAsset('fan', {
		anchorX: 0.5,
		anchorY: 1.0
	});
	self.chaseSpeed = 3;
	self.groundY = 2400;
	self.update = function () {
		// Chase the player
		if (self.x > player.x - 800) {
			self.x -= self.chaseSpeed;
		}
		// Slight animation
		fanGraphics.y = Math.sin(LK.ticks * 0.2 + self.x * 0.01) * 5;
		// Remove if too far behind
		if (self.x < player.x - 1200) {
			self.destroy();
		}
	};
	return self;
});
var Heart = Container.expand(function () {
	var self = Container.call(this);
	var heartGraphics = self.attachAsset('heart', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.collected = false;
	self.update = function () {
		self.x -= gameSpeed;
		// Gentle floating animation
		heartGraphics.y = Math.sin(LK.ticks * 0.1 + self.x * 0.01) * 10;
		heartGraphics.rotation += 0.02;
		// Check if collected
		if (!self.collected && self.intersects(player)) {
			self.collected = true;
			score += 10;
			LK.setScore(score);
			LK.getSound('collect').play();
			// Visual effect
			tween(heartGraphics, {
				scaleX: 2,
				scaleY: 2,
				alpha: 0
			}, {
				duration: 300,
				onFinish: function onFinish() {
					self.destroy();
				}
			});
		}
		// Remove if off screen
		if (self.x < -100) {
			self.destroy();
		}
	};
	return self;
});
var Obstacle = Container.expand(function () {
	var self = Container.call(this);
	var obstacleGraphics = self.attachAsset('obstacle', {
		anchorX: 0.5,
		anchorY: 1.0
	});
	self.hit = false;
	self.groundY = 2400;
	self.update = function () {
		self.x -= gameSpeed;
		// Check collision with player
		if (!self.hit && self.intersects(player)) {
			self.hit = true;
			// Check if player has shield (Jin's ability)
			if (player.hasShield) {
				player.hasShield = false;
				LK.effects.flashObject(player, 0xFFD700, 500);
			} else {
				// Slow down player
				gameSpeed *= 0.8;
				LK.getSound('obstacle').play();
				LK.effects.flashObject(player, 0xFF0000, 300);
				// Decrease score
				score = Math.max(0, score - 5);
				LK.setScore(score);
			}
		}
		// Remove if off screen
		if (self.x < -150) {
			self.destroy();
		}
	};
	return self;
});

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

/**** 
* Game Code
****/ 
// Music
// Sounds
// Game elements
// Character assets for BTS members
// Game variables
var score = 0;
var distance = 0;
var gameSpeed = 6;
var maxGameSpeed = 12;
var hearts = [];
var fans = [];
var obstacles = [];
var spawnTimer = 0;
var fanSpawnTimer = 0;
// Member selection (default to RM)
var selectedMember = storage.selectedMember || 'rm';
var player = game.addChild(new BTSMember(selectedMember));
// Position player
player.x = 300;
player.y = player.groundY;
// Create ground
var ground = game.addChild(LK.getAsset('ground', {
	anchorX: 0,
	anchorY: 0
}));
ground.x = 0;
ground.y = 2450;
// Create UI
var scoreText = new Text2('Score: 0', {
	size: 80,
	fill: 0xFFFFFF
});
scoreText.anchor.set(0, 0);
LK.gui.topRight.addChild(scoreText);
var distanceText = new Text2('0m', {
	size: 60,
	fill: 0xFFFFFF
});
distanceText.anchor.set(0.5, 0);
LK.gui.top.addChild(distanceText);
// Member selection UI
var memberText = new Text2('Member: ' + selectedMember.toUpperCase(), {
	size: 50,
	fill: 0xFFFFFF
});
memberText.anchor.set(0, 0);
LK.gui.bottomLeft.addChild(memberText);
// Instructions
var instructionText = new Text2('Tap to Jump!', {
	size: 70,
	fill: 0xFFD700
});
instructionText.anchor.set(0.5, 0.5);
LK.gui.center.addChild(instructionText);
// Hide instructions after 3 seconds
LK.setTimeout(function () {
	tween(instructionText, {
		alpha: 0
	}, {
		duration: 1000
	});
}, 3000);
// Game controls
game.down = function (x, y, obj) {
	player.jump();
};
// Main game loop
game.update = function () {
	// Update distance
	distance += gameSpeed * 0.1;
	distanceText.setText(Math.floor(distance) + 'm');
	// Gradually increase game speed
	if (gameSpeed < maxGameSpeed) {
		gameSpeed += 0.001;
	}
	// Update score display
	scoreText.setText('Score: ' + score);
	// Spawn hearts
	spawnTimer++;
	if (spawnTimer > 120) {
		// Every 2 seconds
		spawnTimer = 0;
		var heart = new Heart();
		heart.x = 2200;
		heart.y = Math.random() * 400 + 2000; // Random height
		hearts.push(heart);
		game.addChild(heart);
	}
	// Spawn obstacles
	if (Math.random() < 0.005) {
		// Random chance
		var obstacle = new Obstacle();
		obstacle.x = 2200;
		obstacle.y = obstacle.groundY;
		obstacles.push(obstacle);
		game.addChild(obstacle);
	}
	// Spawn fans
	fanSpawnTimer++;
	if (fanSpawnTimer > 300) {
		// Every 5 seconds
		fanSpawnTimer = 0;
		var fan = new Fan();
		fan.x = player.x - 600;
		fan.y = fan.groundY;
		fans.push(fan);
		game.addChild(fan);
	}
	// Clean up destroyed objects
	hearts = hearts.filter(function (heart) {
		return heart.parent !== null;
	});
	obstacles = obstacles.filter(function (obstacle) {
		return obstacle.parent !== null;
	});
	fans = fans.filter(function (fan) {
		return fan.parent !== null;
	});
	// Win condition - reach 1000 points
	if (score >= 1000) {
		LK.showYouWin();
	}
	// Game over condition - if caught by fans
	for (var i = 0; i < fans.length; i++) {
		if (fans[i].x > player.x - 50) {
			LK.showGameOver();
			break;
		}
	}
	// Background scrolling effect
	ground.x -= gameSpeed;
	if (ground.x <= -2048) {
		ground.x = 0;
	}
};
// Play background music
LK.playMusic('bgmusic');
// Save selected member
storage.selectedMember = selectedMember;