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

/**** 
* Classes
****/ 
var Bomb = Container.expand(function () {
	var self = Container.call(this);
	var bombGraphics = self.attachAsset('bomb', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.velocityX = 0;
	self.velocityY = 0;
	self.gravity = 0.3;
	self.sliced = false;
	self.update = function () {
		if (!self.sliced) {
			self.x += self.velocityX;
			self.y += self.velocityY;
			self.velocityY += self.gravity;
			// Flash bomb red occasionally
			if (LK.ticks % 30 < 15) {
				bombGraphics.tint = 0xff0000;
			} else {
				bombGraphics.tint = 0x333333;
			}
		}
	};
	return self;
});
var Fruit = Container.expand(function () {
	var self = Container.call(this);
	var fruitGraphics = self.attachAsset('fruit', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Random fruit colors
	var colors = [0xff6b35, 0xff9500, 0xffb700, 0xff006e, 0x8338ec, 0x3a86ff];
	fruitGraphics.tint = colors[Math.floor(Math.random() * colors.length)];
	self.velocityX = 0;
	self.velocityY = 0;
	self.gravity = 0.3;
	self.sliced = false;
	self.update = function () {
		if (!self.sliced) {
			self.x += self.velocityX;
			self.y += self.velocityY;
			self.velocityY += self.gravity;
			// Rotate fruit as it moves
			fruitGraphics.rotation += 0.05;
		}
	};
	return self;
});
var Particle = Container.expand(function () {
	var self = Container.call(this);
	var particleGraphics = self.attachAsset('particle', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.velocityX = (Math.random() - 0.5) * 10;
	self.velocityY = (Math.random() - 0.5) * 10;
	self.life = 60;
	self.maxLife = 60;
	self.update = function () {
		self.x += self.velocityX;
		self.y += self.velocityY;
		self.life--;
		self.alpha = self.life / self.maxLife;
		self.velocityY += 0.2;
		if (self.life <= 0) {
			self.destroy();
		}
	};
	return self;
});
var SliceTrail = Container.expand(function () {
	var self = Container.call(this);
	self.points = [];
	self.maxPoints = 15;
	self.fadeTime = 30;
	self.currentFade = 0;
	self.addPoint = function (x, y) {
		self.points.push({
			x: x,
			y: y
		});
		if (self.points.length > self.maxPoints) {
			self.points.shift();
		}
		self.currentFade = self.fadeTime;
	};
	self.update = function () {
		if (self.currentFade > 0) {
			self.currentFade--;
			self.alpha = self.currentFade / self.fadeTime;
		}
		// Remove old points
		if (self.points.length > 0 && self.currentFade <= 0) {
			self.points = [];
		}
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x87ceeb
});

/**** 
* Game Code
****/ 
var fruits = [];
var bombs = [];
var particles = [];
var sliceTrail = new SliceTrail();
var isSlicing = false;
var lastSliceX = 0;
var lastSliceY = 0;
var comboCount = 0;
var spawnRate = 120;
var gameSpeed = 1;
game.addChild(sliceTrail);
// Score display
var scoreTxt = new Text2('0', {
	size: 100,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
// Combo display
var comboTxt = new Text2('', {
	size: 60,
	fill: 0xFFFF00
});
comboTxt.anchor.set(0.5, 0);
comboTxt.y = 120;
LK.gui.top.addChild(comboTxt);
function spawnFruit() {
	var fruit = new Fruit();
	fruit.x = Math.random() * 1600 + 224; // Spawn within screen bounds
	fruit.y = 2732 + 100; // Start below screen
	// Random trajectory
	fruit.velocityX = (Math.random() - 0.5) * 8;
	fruit.velocityY = -12 - Math.random() * 8;
	fruits.push(fruit);
	game.addChild(fruit);
}
function spawnBomb() {
	var bomb = new Bomb();
	bomb.x = Math.random() * 1600 + 224;
	bomb.y = 2732 + 100;
	bomb.velocityX = (Math.random() - 0.5) * 6;
	bomb.velocityY = -10 - Math.random() * 6;
	bombs.push(bomb);
	game.addChild(bomb);
}
function createParticles(x, y, color) {
	for (var i = 0; i < 8; i++) {
		var particle = new Particle();
		particle.x = x;
		particle.y = y;
		var particleGraphics = particle.children[0];
		particleGraphics.tint = color;
		particles.push(particle);
		game.addChild(particle);
	}
}
function checkSliceCollision(x1, y1, x2, y2, target) {
	var dx = target.x - x1;
	var dy = target.y - y1;
	var lineX = x2 - x1;
	var lineY = y2 - y1;
	var lineLength = Math.sqrt(lineX * lineX + lineY * lineY);
	if (lineLength === 0) return false;
	var dot = (dx * lineX + dy * lineY) / (lineLength * lineLength);
	dot = Math.max(0, Math.min(1, dot));
	var closestX = x1 + dot * lineX;
	var closestY = y1 + dot * lineY;
	var distance = Math.sqrt((target.x - closestX) * (target.x - closestX) + (target.y - closestY) * (target.y - closestY));
	return distance < 60; // Hit radius
}
game.down = function (x, y, obj) {
	isSlicing = true;
	lastSliceX = x;
	lastSliceY = y;
	sliceTrail.addPoint(x, y);
	comboCount = 0;
};
game.move = function (x, y, obj) {
	if (isSlicing) {
		sliceTrail.addPoint(x, y);
		// Check slice collision with fruits
		for (var i = fruits.length - 1; i >= 0; i--) {
			var fruit = fruits[i];
			if (!fruit.sliced && checkSliceCollision(lastSliceX, lastSliceY, x, y, fruit)) {
				fruit.sliced = true;
				comboCount++;
				var baseScore = 10;
				var comboBonus = comboCount > 1 ? (comboCount - 1) * 5 : 0;
				LK.setScore(LK.getScore() + baseScore + comboBonus);
				// Create particles
				var fruitColor = fruit.children[0].tint;
				createParticles(fruit.x, fruit.y, fruitColor);
				// Play slice sound
				LK.getSound('slice_sound').play();
				// Remove fruit
				fruit.destroy();
				fruits.splice(i, 1);
			}
		}
		// Check slice collision with bombs
		for (var i = bombs.length - 1; i >= 0; i--) {
			var bomb = bombs[i];
			if (!bomb.sliced && checkSliceCollision(lastSliceX, lastSliceY, x, y, bomb)) {
				bomb.sliced = true;
				// Game over
				LK.getSound('bomb_sound').play();
				LK.effects.flashScreen(0xff0000, 1000);
				LK.showGameOver();
				return;
			}
		}
		lastSliceX = x;
		lastSliceY = y;
	}
};
game.up = function (x, y, obj) {
	isSlicing = false;
	if (comboCount > 1) {
		comboTxt.setText('COMBO x' + comboCount + '!');
		tween(comboTxt, {
			alpha: 0
		}, {
			duration: 2000,
			onFinish: function onFinish() {
				comboTxt.setText('');
				comboTxt.alpha = 1;
			}
		});
	}
	comboCount = 0;
};
game.update = function () {
	// Update score display
	scoreTxt.setText(LK.getScore());
	// Increase difficulty over time
	if (LK.ticks % 600 === 0) {
		// Every 10 seconds
		gameSpeed += 0.1;
		spawnRate = Math.max(60, spawnRate - 5);
	}
	// Spawn fruits
	if (LK.ticks % Math.floor(spawnRate / gameSpeed) === 0) {
		spawnFruit();
	}
	// Spawn bombs occasionally
	if (LK.ticks % Math.floor(300 / gameSpeed) === 0 && Math.random() < 0.3) {
		spawnBomb();
	}
	// Clean up off-screen fruits
	for (var i = fruits.length - 1; i >= 0; i--) {
		var fruit = fruits[i];
		if (fruit.y > 2732 + 200 || fruit.x < -200 || fruit.x > 2248) {
			fruit.destroy();
			fruits.splice(i, 1);
		}
	}
	// Clean up off-screen bombs
	for (var i = bombs.length - 1; i >= 0; i--) {
		var bomb = bombs[i];
		if (bomb.y > 2732 + 200 || bomb.x < -200 || bomb.x > 2248) {
			bomb.destroy();
			bombs.splice(i, 1);
		}
	}
	// Clean up dead particles
	for (var i = particles.length - 1; i >= 0; i--) {
		var particle = particles[i];
		if (particle.life <= 0) {
			particles.splice(i, 1);
		}
	}
	// Draw slice trail
	if (sliceTrail.points.length > 1) {
		// Clear previous trail graphics
		sliceTrail.removeChildren();
		// Draw trail points using simple Container graphics
		for (var i = 0; i < sliceTrail.points.length; i++) {
			var point = sliceTrail.points[i];
			var trailPoint = new Container();
			trailPoint.x = point.x;
			trailPoint.y = point.y;
			trailPoint.alpha = i / sliceTrail.points.length * sliceTrail.alpha;
			sliceTrail.addChild(trailPoint);
		}
	}
};