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

/**** 
* Classes
****/ 
var Background = Container.expand(function () {
	var self = Container.call(this);
	var backgroundGraphics = self.attachAsset('background', {
		anchorX: 0,
		anchorY: 0
	});
	self.x = 0;
	self.y = 0;
	return self;
});
var Bomb = Container.expand(function () {
	var self = Container.call(this);
	var bombGraphics = self.attachAsset('bomb', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 2.5;
	self.lastY = 0;
	self.update = function () {
		self.y += self.speed;
		self.rotation += 0.02;
	};
	return self;
});
var Fruit = Container.expand(function (fruitTypeId) {
	var self = Container.call(this);
	var fruitAssetId = 'fruit';
	if (fruitTypeId === 1) {
		fruitAssetId = 'fruit2';
	} else if (fruitTypeId === 2) {
		fruitAssetId = 'fruit3';
	} else if (fruitTypeId === 3) {
		fruitAssetId = 'fruit4';
	} else if (fruitTypeId === 4) {
		fruitAssetId = 'fruit5';
	}
	var fruitGraphics = self.attachAsset(fruitAssetId, {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 3;
	self.isSliced = false;
	self.fruitType = fruitTypeId || 0;
	self.lastY = 0;
	self.update = function () {
		if (!self.isSliced) {
			self.y += self.speed;
		}
	};
	self.slice = function () {
		self.isSliced = true;
		LK.getSound('sliceSound').play();
		var leftPiece = game.addChild(new FruitPiece(true));
		leftPiece.x = self.x - 20;
		leftPiece.y = self.y;
		leftPiece.velocityX = -4;
		leftPiece.velocityY = -8;
		var rightPiece = game.addChild(new FruitPiece(false));
		rightPiece.x = self.x + 20;
		rightPiece.y = self.y;
		rightPiece.velocityX = 4;
		rightPiece.velocityY = -8;
		LK.effects.flashObject(self, 0xFFFF00, 300);
		tween(self, {
			alpha: 0
		}, {
			duration: 300,
			onFinish: function onFinish() {
				self.destroy();
			}
		});
	};
	return self;
});
var FruitPiece = Container.expand(function (isLeft) {
	var self = Container.call(this);
	var piece = self.attachAsset(isLeft ? 'fruitLeft' : 'fruitRight', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.velocityX = 0;
	self.velocityY = 0;
	self.gravity = 0.15;
	self.lifespan = 60;
	self.update = function () {
		self.x += self.velocityX;
		self.y += self.velocityY;
		self.velocityY += self.gravity;
		self.lifespan--;
		if (self.lifespan <= 0) {
			self.destroy();
		}
	};
	return self;
});
var SlashEffect = Container.expand(function (x1, y1, x2, y2) {
	var self = Container.call(this);
	var dx = x2 - x1;
	var dy = y2 - y1;
	var distance = Math.sqrt(dx * dx + dy * dy);
	var angle = Math.atan2(dy, dx);
	var slashLine = self.attachAsset('slashLine', {
		anchorX: 0,
		anchorY: 0.5
	});
	self.x = x1;
	self.y = y1;
	self.rotation = angle;
	slashLine.width = distance;
	self.lifespan = 200;
	slashLine.alpha = 0.8;
	self.update = function () {
		self.lifespan--;
		slashLine.alpha = 0.8 * (self.lifespan / 200);
		if (self.lifespan <= 0) {
			self.destroy();
		}
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x1A1A2E
});

/**** 
* Game Code
****/ 
var gameStarted = false;
var menuScreen = null;
var gameScreen = null;
var startButton = null;
var gameBackground = null;
function createStartMenu() {
	menuScreen = new Container();
	game.addChild(menuScreen);
	var menuBackground = menuScreen.addChild(LK.getAsset('background', {
		anchorX: 0,
		anchorY: 0
	}));
	menuBackground.x = 0;
	menuBackground.y = 0;
	startButton = menuScreen.addChild(new Container());
	startButton.x = 2048 / 2;
	startButton.y = 2732 / 2;
	var buttonShape = startButton.attachAsset('fruit4', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	buttonShape.width = 400;
	buttonShape.height = 200;
	buttonShape.tint = 0x00AA00;
	var buttonText = startButton.addChild(new Text2('START', {
		size: 120,
		fill: '#FFFFFF'
	}));
	buttonText.anchor.set(0.5, 0.5);
	buttonText.x = 0;
	buttonText.y = 0;
	startButton.interactive = true;
	startButton.down = function (x, y, obj) {
		startGame();
	};
}
function startGame() {
	gameStarted = true;
	if (menuScreen) {
		menuScreen.destroy();
		menuScreen = null;
	}
	gameBackground = game.addChild(LK.getAsset('background', {
		anchorX: 0,
		anchorY: 0
	}));
	gameBackground.x = 0;
	gameBackground.y = 0;
	game.setChildIndex(gameBackground, 0);
	gameScreenVisible = true;
}
createStartMenu();
var background = null;
var fruits = [];
var bombs = [];
var pieces = [];
var slashEffects = [];
var gameScreenVisible = false;
var score = 0;
var combo = 0;
var difficulty = 1;
var gameActive = false;
var spawnRate = 60;
var fruitSpeed = 3;
var lastSpawnTick = 0;
var bombChance = 0.15;
var scoreTxt = new Text2('Score: 0', {
	size: 100,
	fill: '#FFFFFF'
});
scoreTxt.anchor.set(0, 0);
LK.gui.topLeft.addChild(scoreTxt);
var comboTxt = new Text2('Combo: 0', {
	size: 80,
	fill: '#FFD700'
});
comboTxt.anchor.set(0.5, 0);
comboTxt.x = 300;
LK.gui.top.addChild(comboTxt);
var difficultyTxt = new Text2('Level: 1', {
	size: 70,
	fill: '#87CEEB'
});
difficultyTxt.anchor.set(0.5, 0);
difficultyTxt.x = 600;
LK.gui.top.addChild(difficultyTxt);
LK.playMusic('bgmusic', {
	loop: true
});
var touchTrail = [];
game.down = function (x, y, obj) {
	if (!gameStarted || !gameScreenVisible) {
		return;
	}
	touchTrail = [];
	touchTrail.push({
		x: x,
		y: y
	});
	var fruitHit = false;
	for (var i = fruits.length - 1; i >= 0; i--) {
		var fruit = fruits[i];
		if (!fruit.isSliced) {
			var dx = fruit.x - x;
			var dy = fruit.y - y;
			var distance = Math.sqrt(dx * dx + dy * dy);
			if (distance < 60) {
				fruit.slice();
				LK.getSound('sliceSound').play();
				score += 10 + combo * 5;
				combo++;
				fruitHit = true;
				scoreTxt.setText('Score: ' + score);
				comboTxt.setText('Combo: ' + combo);
				break;
			}
		}
	}
	for (var i = bombs.length - 1; i >= 0; i--) {
		var bomb = bombs[i];
		var dx = bomb.x - x;
		var dy = bomb.y - y;
		var distance = Math.sqrt(dx * dx + dy * dy);
		if (distance < 50) {
			LK.getSound('bombSound').play();
			LK.getSound('gameoverSound').play();
			LK.effects.flashScreen(0xFF0000, 1000);
			gameActive = false;
			LK.showGameOver();
		}
	}
};
game.move = function (x, y, obj) {
	if (!gameStarted || !gameScreenVisible || !gameActive) {
		return;
	}
	var lastPoint = touchTrail[touchTrail.length - 1];
	if (lastPoint && (Math.abs(x - lastPoint.x) > 5 || Math.abs(y - lastPoint.y) > 5)) {
		touchTrail.push({
			x: x,
			y: y
		});
		var slashFx = game.addChild(new SlashEffect(lastPoint.x, lastPoint.y, x, y));
		slashEffects.push(slashFx);
		for (var i = fruits.length - 1; i >= 0; i--) {
			var fruit = fruits[i];
			if (!fruit.isSliced) {
				var dx = fruit.x - x;
				var dy = fruit.y - y;
				var distance = Math.sqrt(dx * dx + dy * dy);
				if (distance < 70) {
					fruit.slice();
					LK.getSound('sliceSound').play();
					score += 10 + combo * 5;
					combo++;
					scoreTxt.setText('Score: ' + score);
					comboTxt.setText('Combo: ' + combo);
				}
			}
		}
		for (var i = bombs.length - 1; i >= 0; i--) {
			var bomb = bombs[i];
			var dx = bomb.x - x;
			var dy = bomb.y - y;
			var distance = Math.sqrt(dx * dx + dy * dy);
			if (distance < 60) {
				LK.getSound('bombSound').play();
				LK.getSound('gameoverSound').play();
				LK.effects.flashScreen(0xFF0000, 1000);
				gameActive = false;
				LK.showGameOver();
			}
		}
	}
};
game.update = function () {
	if (!gameStarted) {
		return;
	}
	if (!gameScreenVisible) {
		gameScreenVisible = true;
	}
	if (!gameActive && gameStarted) {
		gameActive = true;
	}
	if (LK.ticks % spawnRate === 0) {
		var randomX = Math.random() * 1900 + 74;
		if (Math.random() < bombChance) {
			var newBomb = game.addChild(new Bomb());
			newBomb.x = randomX;
			newBomb.y = -50;
			newBomb.speed = fruitSpeed - 0.5;
			bombs.push(newBomb);
		} else {
			var fruitTypeId = Math.floor(Math.random() * 5);
			var newFruit = game.addChild(new Fruit(fruitTypeId));
			newFruit.x = randomX;
			newFruit.y = -50;
			newFruit.speed = fruitSpeed;
			fruits.push(newFruit);
		}
	}
	for (var i = fruits.length - 1; i >= 0; i--) {
		var fruit = fruits[i];
		if (fruit.lastY === undefined) {
			fruit.lastY = fruit.y;
		}
		if (fruit.lastY >= 0 && fruit.y >= 2732) {
			if (!fruit.isSliced) {
				combo = 0;
				comboTxt.setText('Combo: 0');
				LK.effects.flashScreen(0xFF0000, 800);
				LK.getSound('gameoverSound').play();
				gameActive = false;
				LK.showGameOver();
				return;
			}
		}
		fruit.lastY = fruit.y;
	}
	for (var i = bombs.length - 1; i >= 0; i--) {
		var bomb = bombs[i];
		if (bomb.y >= 2732) {
			bomb.destroy();
			bombs.splice(i, 1);
		}
	}
	for (var i = pieces.length - 1; i >= 0; i--) {
		if (pieces[i].lifespan <= 0) {
			pieces.splice(i, 1);
		}
	}
	for (var i = slashEffects.length - 1; i >= 0; i--) {
		if (slashEffects[i].lifespan <= 0) {
			slashEffects.splice(i, 1);
		}
	}
	if (LK.ticks % 300 === 0) {
		difficulty = Math.floor(score / 100) + 1;
		spawnRate = Math.max(30, 60 - difficulty * 3);
		fruitSpeed = 3 + difficulty * 0.5;
		bombChance = Math.min(0.25, 0.15 + difficulty * 0.02);
		difficultyTxt.setText('Level: ' + difficulty);
	}
};