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

/**** 
* Classes
****/ 
var Bullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletGraphics = self.attachAsset('bullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = -12;
	self.update = function () {
		self.y += self.speed;
	};
	return self;
});
var Cloud = Container.expand(function () {
	var self = Container.call(this);
	var cloudGraphics = self.attachAsset('cloud', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	cloudGraphics.alpha = 0.7;
	self.speed = Math.random() * 0.5 + 0.2;
	self.update = function () {
		self.x += self.speed;
		if (self.x > 2048 + 100) {
			self.x = -100;
			self.y = Math.random() * 2732;
		}
	};
	return self;
});
var Fruit = Container.expand(function (fruitType) {
	var self = Container.call(this);
	self.fruitType = fruitType || 'apple';
	self.points = 10;
	if (self.fruitType === 'orange') {
		self.points = 15;
	} else if (self.fruitType === 'banana') {
		self.points = 20;
	} else if (self.fruitType === 'grape') {
		self.points = 25;
	}
	var fruitGraphics = self.attachAsset(self.fruitType, {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = Math.random() * 3 + 2;
	self.update = function () {
		self.y += self.speed;
	};
	return self;
});
var Gun = Container.expand(function () {
	var self = Container.call(this);
	var gunGraphics = self.attachAsset('gun', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	return self;
});
var Sun = Container.expand(function () {
	var self = Container.call(this);
	var sunGraphics = self.attachAsset('sun', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	sunGraphics.alpha = 0.8;
	return self;
});

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

/**** 
* Game Code
****/ 
// Add sun to the background
var sun = game.addChild(new Sun());
sun.x = 1800;
sun.y = 300;
// Add clouds to the background
var clouds = [];
for (var c = 0; c < 15; c++) {
	var cloud = new Cloud();
	cloud.x = Math.random() * 2048;
	cloud.y = Math.random() * 2732;
	clouds.push(cloud);
	game.addChild(cloud);
}
var gun = game.addChild(new Gun());
gun.x = 2048 / 2;
gun.y = 2732 - 200;
var bullets = [];
var fruits = [];
var lives = 3;
var gameSpeed = 1;
var level = 1;
var lastLevelScore = 0;
var scoreTxt = new Text2('Score: 0', {
	size: 80,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
var livesTxt = new Text2('❤️❤️❤️', {
	size: 60,
	fill: 0xFFFFFF
});
livesTxt.anchor.set(1, 0);
LK.gui.topRight.addChild(livesTxt);
var levelTxt = new Text2('Level: 1', {
	size: 60,
	fill: 0xFFFFFF
});
levelTxt.anchor.set(0, 0);
LK.gui.topLeft.addChild(levelTxt);
levelTxt.x = 120; // Offset from left edge to avoid menu icon
var fruitTypes = ['apple', 'orange', 'banana', 'grape'];
var fruitSpawnTimer = 0;
var fruitSpawnRate = 120;
function spawnFruit() {
	var randomType = fruitTypes[Math.floor(Math.random() * fruitTypes.length)];
	var newFruit = new Fruit(randomType);
	newFruit.x = Math.random() * (2048 - 300) + 150;
	newFruit.y = -100;
	newFruit.speed *= gameSpeed;
	fruits.push(newFruit);
	game.addChild(newFruit);
}
function shootBullet() {
	var newBullet = new Bullet();
	newBullet.x = gun.x;
	newBullet.y = gun.y - 50;
	bullets.push(newBullet);
	game.addChild(newBullet);
	LK.getSound('shoot').play();
}
game.down = function (x, y, obj) {
	shootBullet();
};
game.move = function (x, y, obj) {
	gun.x = Math.max(150, Math.min(2048 - 150, x));
};
// Start background music
LK.playMusic('background');
game.update = function () {
	fruitSpawnTimer++;
	if (fruitSpawnTimer >= fruitSpawnRate / gameSpeed) {
		spawnFruit();
		fruitSpawnTimer = 0;
	}
	// Update bullets
	for (var i = bullets.length - 1; i >= 0; i--) {
		var bullet = bullets[i];
		if (bullet.y < -100) {
			bullet.destroy();
			bullets.splice(i, 1);
			continue;
		}
		// Check bullet-fruit collisions
		for (var j = fruits.length - 1; j >= 0; j--) {
			var fruit = fruits[j];
			if (bullet.intersects(fruit)) {
				var oldScore = LK.getScore();
				LK.setScore(LK.getScore() + fruit.points);
				var newScore = LK.getScore();
				scoreTxt.setText('Score: ' + newScore);
				// Check for level up every 20 points
				var pointsGained = newScore - lastLevelScore;
				if (pointsGained >= 20) {
					level++;
					lastLevelScore = newScore;
					levelTxt.setText('Level: ' + level);
				}
				LK.effects.flashObject(fruit, 0xffffff, 200);
				LK.getSound('hit').play();
				bullet.destroy();
				bullets.splice(i, 1);
				fruit.destroy();
				fruits.splice(j, 1);
				break;
			}
		}
	}
	// Update fruits
	for (var k = fruits.length - 1; k >= 0; k--) {
		var fruit = fruits[k];
		if (fruit.y > 2732 + 100) {
			lives--;
			var hearts = '';
			for (var h = 0; h < lives; h++) {
				hearts += '❤️';
			}
			livesTxt.setText(hearts);
			if (lives <= 0) {
				LK.showGameOver();
				return;
			}
			fruit.destroy();
			fruits.splice(k, 1);
		}
	}
	// Increase game speed over time
	if (LK.ticks % 1800 === 0) {
		gameSpeed += 0.2;
		fruitSpawnRate = Math.max(30, fruitSpawnRate - 5);
	}
};