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

/**** 
* Classes
****/ 
var Exit = Container.expand(function () {
	var self = Container.call(this);
	var exitGraphics = self.attachAsset('exit', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.lastY = 0;
	self.update = function () {
		self.lastY = self.y;
	};
	return self;
});
var Huggy = Container.expand(function () {
	var self = Container.call(this);
	var huggyGraphics = self.attachAsset('huggy', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.baseSpeed = 4;
	self.currentSpeed = 4;
	self.distanceToPlayer = 0;
	self.lastY = 0;
	self.dangerThreshold = 400;
	self.warningActive = false;
	self.update = function () {
		self.lastY = self.y;
	};
	return self;
});
var Obstacle = Container.expand(function () {
	var self = Container.call(this);
	var obstacleGraphics = self.attachAsset('obstacle', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.slowFactor = 0.5;
	self.lastY = 0;
	self.update = function () {
		self.lastY = self.y;
	};
	return self;
});
var Player = Container.expand(function () {
	var self = Container.call(this);
	var playerGraphics = self.attachAsset('player', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 8;
	self.isSpeedBoosted = false;
	self.boostEndTime = 0;
	self.lastX = 0;
	self.activateBoost = function () {
		self.isSpeedBoosted = true;
		self.boostEndTime = LK.ticks + 300;
		playerGraphics.tint = 0xFFFF00;
	};
	self.update = function () {
		if (LK.ticks > self.boostEndTime && self.isSpeedBoosted) {
			self.isSpeedBoosted = false;
			playerGraphics.tint = 0xFFFFFF;
		}
		self.lastX = self.x;
	};
	return self;
});
var PowerUp = Container.expand(function () {
	var self = Container.call(this);
	var powerupGraphics = self.attachAsset('powerup', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.bobOffset = 0;
	self.collected = false;
	self.lastY = 0;
	self.update = function () {
		self.bobOffset += 0.1;
		self.y = self.y + Math.sin(self.bobOffset) * 0.5;
		self.lastY = self.y;
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x1a1a2e
});

/**** 
* Game Code
****/ 
var player = game.addChild(new Player());
player.x = 200;
player.y = 400;
var huggy = game.addChild(new Huggy());
huggy.x = 200;
huggy.y = -200;
var obstacles = [];
var powerups = [];
var exit = null;
var score = 0;
var gameActive = true;
var playerOnObstacle = false;
var playerMoving = false;
var playerTargetX = 200;
var scoreTxt = new Text2('Distance: 0m', {
	size: 80,
	fill: '#FFFFFF'
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
var dangerTxt = new Text2('DANGER!', {
	size: 100,
	fill: '#FF0000'
});
dangerTxt.anchor.set(0.5, 0.5);
dangerTxt.visible = false;
LK.gui.center.addChild(dangerTxt);
function spawnObstacle(yPos) {
	var obstacle = game.addChild(new Obstacle());
	obstacle.x = 150 + Math.random() * 700;
	obstacle.y = yPos;
	obstacles.push(obstacle);
}
function spawnPowerUp(yPos) {
	var powerup = game.addChild(new PowerUp());
	powerup.x = 150 + Math.random() * 700;
	powerup.y = yPos;
	powerups.push(powerup);
}
function createExit(yPos) {
	exit = game.addChild(new Exit());
	exit.x = 1024;
	exit.y = yPos;
}
function initializeLevel() {
	score = 0;
	player.y = 400;
	huggy.y = -200;
	huggy.currentSpeed = huggy.baseSpeed;
	gameActive = true;
	playerOnObstacle = false;
	for (var i = 0; i < 15; i++) {
		spawnObstacle(-500 + i * 400);
	}
	for (var i = 0; i < 5; i++) {
		spawnPowerUp(-800 + i * 800 + Math.random() * 400);
	}
	createExit(-6000);
	LK.playMusic('bgmusic', {
		loop: true
	});
}
game.down = function (x, y, obj) {
	if (gameActive) {
		playerMoving = true;
		playerTargetX = x;
	}
};
game.up = function (x, y, obj) {
	playerMoving = false;
};
game.move = function (x, y, obj) {
	if (gameActive && playerMoving) {
		playerTargetX = x;
	}
};
game.update = function () {
	if (!gameActive) {
		return;
	}
	var moveSpeed = player.speed;
	if (playerMoving) {
		var direction = playerTargetX > player.x ? 1 : -1;
		player.x += direction * moveSpeed * 0.5;
		if (player.x < 100) player.x = 100;
		if (player.x > 1948) player.x = 1948;
	}
	player.y += moveSpeed;
	if (playerOnObstacle) {
		player.y += moveSpeed * (player.slowFactor - 1);
	}
	if (player.isSpeedBoosted) {
		player.y += moveSpeed * 1.5;
	}
	huggy.y += huggy.currentSpeed;
	var huggyDistance = Math.abs(huggy.y - player.y);
	player.distanceToPlayer = huggyDistance;
	if (huggyDistance < 600 && huggyDistance > 300) {
		huggy.currentSpeed = huggy.baseSpeed + 1.5;
		if (!huggy.warningActive) {
			huggy.warningActive = true;
			dangerTxt.visible = true;
			LK.getSound('danger').play();
			tween(dangerTxt, {
				alpha: 0
			}, {
				duration: 500,
				onFinish: function onFinish() {
					dangerTxt.visible = false;
					dangerTxt.alpha = 1;
					huggy.warningActive = false;
				}
			});
		}
	} else if (huggyDistance < 300) {
		huggy.currentSpeed = huggy.baseSpeed + 3;
		dangerTxt.visible = true;
	} else {
		huggy.currentSpeed = huggy.baseSpeed;
		dangerTxt.visible = false;
	}
	score = Math.floor((player.y - 400) / 10);
	if (score < 0) score = 0;
	scoreTxt.setText('Distance: ' + score + 'm');
	playerOnObstacle = false;
	for (var i = obstacles.length - 1; i >= 0; i--) {
		var obstacle = obstacles[i];
		if (player.intersects(obstacle) && obstacle.lastY > player.lastY) {
			playerOnObstacle = true;
			obstacle.slowFactor = 0.4;
		}
		if (obstacle.y > 3000) {
			obstacle.destroy();
			obstacles.splice(i, 1);
		}
	}
	for (var i = powerups.length - 1; i >= 0; i--) {
		var powerup = powerups[i];
		if (!powerup.collected && player.intersects(powerup)) {
			powerup.collected = true;
			player.activateBoost();
			LK.getSound('powerup').play();
			LK.setScore(LK.getScore() + 50);
			powerup.destroy();
			powerups.splice(i, 1);
		}
		if (powerup.y > 3000) {
			if (!powerup.collected) {
				powerup.destroy();
				powerups.splice(i, 1);
			}
		}
	}
	if (exit && player.intersects(exit)) {
		gameActive = false;
		LK.setScore(LK.getScore() + 1000 + score);
		LK.showYouWin();
	}
	if (huggy.intersects(player)) {
		gameActive = false;
		LK.getSound('caught').play();
		LK.effects.flashScreen(0xFF0000, 500);
		LK.showGameOver();
	}
	if (player.y > 500) {
		var lastObstacleY = obstacles.length > 0 ? obstacles[0].y : player.y;
		var nextSpawnY = lastObstacleY - 1000;
		if (Math.random() < 0.7) {
			spawnObstacle(nextSpawnY);
		}
		if (Math.random() < 0.15) {
			spawnPowerUp(nextSpawnY);
		}
	}
};
initializeLevel();
LK.playMusic('bgmusic');