/**** 
* Classes
****/ 
// BigTarget class for larger targets that require multiple hits
var BigTarget = Container.expand(function () {
	var self = Container.call(this);
	var targetGraphics = self.attachAsset('bigTarget', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 1; // Slower speed for big targets
	self.hitPoints = 5; // Number of hits required to destroy
	self.update = function () {
		self.y += self.speed;
		if (self.y > 2732 + 50) {
			self.destroy();
		}
	};
	self.hit = function () {
		self.hitPoints--;
		if (self.hitPoints <= 0) {
			self.destroy();
			return true; // Return true if destroyed
		}
		return false; // Return false if not yet destroyed
	};
});
// Assets will be automatically initialized by the LK engine based on their usage in the code.
// Bullet class for the player's shots
var Bullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletGraphics = self.attachAsset('bullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = -10; // Speed of the bullet
	self.update = function () {
		self.y += self.speed;
		if (self.y < -50) {
			self.destroy();
		}
	};
});
// FighterPlane class for the player's plane
var FighterPlane = Container.expand(function () {
	var self = Container.call(this);
	var planeGraphics = self.attachAsset('fighterPlane', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.x = 2048 / 2; // Center the plane horizontally
	self.y = 2732 - 200; // Position the plane near the bottom of the screen
	self.health = 100; // Initialize health
	// Method to shoot bullets
	self.shoot = function () {
		var newBullet = new Bullet();
		newBullet.x = self.x;
		newBullet.y = self.y - 50; // Position bullet in front of the plane
		bullets.push(newBullet);
		game.addChild(newBullet);
	};
});
// HealthBar class for displaying health
var HealthBar = Container.expand(function () {
	var self = Container.call(this);
	var barGraphics = self.attachAsset('healthBar', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.updateHealth = function (health) {
		barGraphics.scaleX = health / 100; // Scale based on health percentage
	};
});
// Missile class for enemy missiles
var Missile = Container.expand(function () {
	var self = Container.call(this);
	var missileGraphics = self.attachAsset('missile', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 5; // Speed of the missile
	self.update = function () {
		self.y += self.speed;
		if (self.y > 2732 + 50) {
			self.destroy();
		}
	};
});
// Target class for the targets to be hit
var Target = Container.expand(function () {
	var self = Container.call(this);
	var targetGraphics = self.attachAsset('target', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 2; // Speed of the target
	self.update = function () {
		self.y += self.speed;
		if (self.y > 2732 + 50) {
			self.destroy();
		}
	};
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x000000 // Init game with black background
});

/**** 
* Game Code
****/ 
// Function to spawn a new big target
function spawnBigTarget() {
	var newBigTarget = new BigTarget();
	newBigTarget.x = Math.random() * 2048;
	newBigTarget.y = -100; // Start higher to give more time to react
	bigTargets.push(newBigTarget);
	game.addChild(newBigTarget);
}
// Initialize variables
var bullets = [];
var targets = [];
var bigTargets = [];
var missiles = [];
var score = 0;
var fighterPlane = new FighterPlane();
game.addChild(fighterPlane);
// Create score display
var scoreTxt = new Text2('0', {
	size: 150,
	fill: "#ffffff"
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
// Initialize health bar
var healthBar = new HealthBar();
healthBar.x = 50; // Position health bar at the top left corner
healthBar.y = 50; // Keep health bar at the top of the screen
game.addChild(healthBar);
// Function to spawn a new target
function spawnTarget() {
	var newTarget = new Target();
	newTarget.x = Math.random() * 2048;
	newTarget.y = -50;
	targets.push(newTarget);
	game.addChild(newTarget);
}
// Function to handle continuous shooting
LK.setInterval(function () {
	fighterPlane.shoot();
}, 500); // Shoot every 500ms
// Game update loop
game.update = function () {
	// Update bullets
	for (var i = bullets.length - 1; i >= 0; i--) {
		bullets[i].update();
		for (var j = targets.length - 1; j >= 0; j--) {
			if (bullets[i].intersects(targets[j])) {
				bullets[i].destroy();
				targets[j].destroy();
				bullets.splice(i, 1);
				targets.splice(j, 1);
				score++;
				scoreTxt.setText(score);
				break;
			}
		}
	}
	// Update targets
	for (var k = targets.length - 1; k >= 0; k--) {
		targets[k].update();
		// Targets shoot missiles periodically, limited to one every 5 seconds
		if (LK.ticks % 430 === 0) {
			// 5 seconds at 60 FPS
			if (!targets[k].lastMissileTime || LK.ticks - targets[k].lastMissileTime >= 300) {
				var newMissile = new Missile();
				newMissile.x = targets[k].x;
				newMissile.y = targets[k].y + 50; // Position missile below the target
				game.addChild(newMissile);
				targets[k].lastMissileTime = LK.ticks;
			}
		}
	}
	// Update big targets
	for (var l = bigTargets.length - 1; l >= 0; l--) {
		bigTargets[l].update();
		for (var m = bullets.length - 1; m >= 0; m--) {
			if (bullets[m].intersects(bigTargets[l])) {
				bullets[m].destroy();
				bullets.splice(m, 1);
				if (bigTargets[l].hit()) {
					bigTargets.splice(l, 1);
					score += 5; // Extra points for destroying big target
					scoreTxt.setText(score);
					break;
				}
			}
		}
	}
	// Update missiles
	for (var n = missiles.length - 1; n >= 0; n--) {
		missiles[n].update();
		if (missiles[n].intersects(fighterPlane)) {
			missiles[n].destroy();
			missiles.splice(n, 1);
			// Reduce health
			fighterPlane.health = Math.max(0, fighterPlane.health - 20);
			healthBar.updateHealth(fighterPlane.health);
			// Flash screen and show explosion if health is zero
			if (fighterPlane.health <= 0) {
				LK.effects.flashScreen(0xff0000, 1000);
				// Create explosion effect
				var explosion = LK.getAsset('explosion', {
					anchorX: 0.5,
					anchorY: 0.5
				});
				explosion.x = fighterPlane.x;
				explosion.y = fighterPlane.y;
				game.addChild(explosion);
				// Remove fighter plane
				fighterPlane.destroy();
				// Show game over
				LK.showGameOver();
			}
		}
	}
	// Keep health bar at the top left corner
	healthBar.x = 50;
	healthBar.y = 50;
	// Spawn new targets periodically
	if (LK.ticks % 121 === 0) {
		spawnTarget();
	}
	// Spawn big targets periodically
	if (LK.ticks % 300 === 0) {
		spawnBigTarget();
	}
};
// Handle touch events for shooting and moving the plane
game.down = function (x, y, obj) {
	// Move the plane horizontally based on touch position
	fighterPlane.x = x;
	// shoot(x, y); // Removed as continuous shooting is handled by setInterval
};