/**** 
* 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.speed = 8;
	self.update = function () {
		self.y += self.speed;
	};
	return self;
});
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 Explosion = Container.expand(function () {
	var self = Container.call(this);
	var explosionGraphics = self.attachAsset('explosion', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.lifespan = 30;
	self.update = function () {
		self.lifespan--;
		self.alpha = self.lifespan / 30;
		if (self.lifespan <= 0) {
			self.destroy();
		}
	};
	return self;
});
var FighterJet = Container.expand(function () {
	var self = Container.call(this);
	var jetGraphics = self.attachAsset('fighterJet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	var bombTargetCircle = self.attachAsset('bombTarget', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	bombTargetCircle.y = 120;
	bombTargetCircle.alpha = 0.6;
	bombTargetCircle.visible = false;
	self.bombTargetCircle = bombTargetCircle;
	self.lives = 3;
	self.flareCount = 3;
	self.maxFlares = 3;
	self.flareRechargeTimer = 0;
	self.aaSystemsDestroyed = 0;
	self.update = function () {
		// Recharge flares over time
		if (self.flareCount < self.maxFlares) {
			self.flareRechargeTimer++;
			if (self.flareRechargeTimer >= 300) {
				// 5 seconds at 60fps
				self.flareCount++;
				self.flareRechargeTimer = 0;
				updateFlareDisplay();
			}
		}
	};
	return self;
});
var Flare = Container.expand(function () {
	var self = Container.call(this);
	var flareGraphics = self.attachAsset('flare', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.lifespan = 180; // 3 seconds
	self.update = function () {
		self.lifespan--;
		if (self.lifespan <= 0) {
			self.destroy();
		}
	};
	return self;
});
var GroundTarget = Container.expand(function (targetType) {
	var self = Container.call(this);
	var targetGraphics = self.attachAsset(targetType, {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.targetType = targetType;
	self.points = getPointsForTarget(targetType);
	self.canShootMissiles = targetType === 's300System';
	self.missileTimer = 0;
	self.update = function () {
		self.y += scrollSpeed;
		// S-300 systems shoot missiles at the player
		if (self.canShootMissiles && self.y > 200 && self.y < 2000) {
			self.missileTimer++;
			if (self.missileTimer >= 180) {
				// Every 3 seconds
				self.fireMissile();
				self.missileTimer = 0;
			}
		}
	};
	self.fireMissile = function () {
		var missile = new Missile();
		missile.x = self.x;
		missile.y = self.y;
		missile.targetX = fighterJet.x;
		missile.targetY = fighterJet.y;
		missiles.push(missile);
		game.addChild(missile);
		LK.getSound('missile').play();
	};
	return self;
});
var Missile = Container.expand(function () {
	var self = Container.call(this);
	var missileGraphics = self.attachAsset('missile', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 6;
	self.targetX = 0;
	self.targetY = 0;
	self.update = function () {
		// Move towards target (fighter jet)
		var dx = self.targetX - self.x;
		var dy = self.targetY - self.y;
		var distance = Math.sqrt(dx * dx + dy * dy);
		if (distance > 0) {
			self.x += dx / distance * self.speed;
			self.y += dy / distance * self.speed;
		}
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0xc19a6b
});

/**** 
* Game Code
****/ 
var fighterJet = game.addChild(new FighterJet());
fighterJet.x = 1024;
fighterJet.y = 2200;
var bullets = [];
var bombs = [];
var flares = [];
var missiles = [];
var groundTargets = [];
var explosions = [];
var scrollSpeed = 3;
var spawnTimer = 0;
var gameSpeed = 1;
var bombKeyPressed = false;
var flareKeyPressed = false;
var keyStates = {};
// Add keyboard event listeners
document.addEventListener('keydown', function (event) {
	keyStates[event.code] = true;
	keyStates[event.key] = true;
});
document.addEventListener('keyup', function (event) {
	keyStates[event.code] = false;
	keyStates[event.key] = false;
});
// UI Elements
var scoreText = new Text2('Score: 0', {
	size: 60,
	fill: '#ffffff'
});
scoreText.anchor.set(0, 0);
scoreText.x = 150;
scoreText.y = 50;
LK.gui.topLeft.addChild(scoreText);
var livesText = new Text2('Lives: 3', {
	size: 60,
	fill: '#ffffff'
});
livesText.anchor.set(1, 0);
LK.gui.topRight.addChild(livesText);
var flareText = new Text2('Flares: 3', {
	size: 60,
	fill: '#ffffff'
});
flareText.anchor.set(0.5, 0);
LK.gui.top.addChild(flareText);
function updateScore() {
	scoreText.setText('Score: ' + LK.getScore());
}
function updateLivesDisplay() {
	livesText.setText('Lives: ' + fighterJet.lives);
}
function updateFlareDisplay() {
	flareText.setText('Flares: ' + fighterJet.flareCount);
}
function getPointsForTarget(targetType) {
	switch (targetType) {
		case 'building':
			return 10;
		case 'targetBuilding':
			return 25;
		case 'car':
			return 15;
		case 'armyVan':
			return 20;
		case 's300System':
			return 50;
		default:
			return 10;
	}
}
function spawnGroundTarget() {
	var targetTypes = ['building', 'targetBuilding', 'car', 'armyVan', 's300System'];
	var randomType = targetTypes[Math.floor(Math.random() * targetTypes.length)];
	var target = new GroundTarget(randomType);
	target.x = Math.random() * 1800 + 124; // Keep within screen bounds
	target.y = -100;
	groundTargets.push(target);
	game.addChild(target);
}
function createExplosion(x, y) {
	var explosion = new Explosion();
	explosion.x = x;
	explosion.y = y;
	explosions.push(explosion);
	game.addChild(explosion);
	LK.getSound('explosion').play();
}
function checkMissileFlareCollision(missile) {
	for (var f = flares.length - 1; f >= 0; f--) {
		var flare = flares[f];
		if (missile.intersects(flare)) {
			// Missile destroyed by flare
			createExplosion(missile.x, missile.y);
			missile.destroy();
			flare.destroy();
			flares.splice(f, 1);
			return true;
		}
	}
	return false;
}
// Event handlers
game.move = function (x, y, obj) {
	fighterJet.x = x;
	fighterJet.y = y;
};
game.down = function (x, y, obj) {
	if (obj.event && obj.event.button === 0) {
		// Left click - fire bullet
		var bullet = new Bullet();
		bullet.x = fighterJet.x;
		bullet.y = fighterJet.y - 50;
		bullets.push(bullet);
		game.addChild(bullet);
		LK.getSound('shoot').play();
	} else if (obj.event && obj.event.button === 2) {
		// Right click - drop bomb
		var bomb = new Bomb();
		bomb.x = fighterJet.x;
		bomb.y = fighterJet.y + 50;
		bombs.push(bomb);
		game.addChild(bomb);
		LK.getSound('bomb').play();
	} else if (!obj.event) {
		// Default action for touch/tap (no event object) - fire bullet
		var bullet = new Bullet();
		bullet.x = fighterJet.x;
		bullet.y = fighterJet.y - 50;
		bullets.push(bullet);
		game.addChild(bullet);
		LK.getSound('shoot').play();
	}
};
game.update = function () {
	// Handle keyboard input
	var currentFlareKeyPressed = keyStates['KeyF'] || keyStates['f'] || keyStates['F'];
	var currentBombKeyPressed = keyStates['KeyB'] || keyStates['b'] || keyStates['B'];
	// Fire flare on F key press (only once per press)
	if (currentFlareKeyPressed && !flareKeyPressed && fighterJet.flareCount > 0) {
		var flare = new Flare();
		flare.x = fighterJet.x + (Math.random() - 0.5) * 100;
		flare.y = fighterJet.y + (Math.random() - 0.5) * 100;
		flares.push(flare);
		game.addChild(flare);
		fighterJet.flareCount--;
		updateFlareDisplay();
		LK.getSound('flare').play();
	}
	flareKeyPressed = currentFlareKeyPressed;
	// Drop bomb on B key press (only once per press)
	if (currentBombKeyPressed && !bombKeyPressed) {
		var bomb = new Bomb();
		bomb.x = fighterJet.x;
		bomb.y = fighterJet.y + 50;
		bombs.push(bomb);
		game.addChild(bomb);
		LK.getSound('bomb').play();
	}
	bombKeyPressed = currentBombKeyPressed;
	spawnTimer++;
	// Spawn new ground targets
	if (spawnTimer >= 60) {
		// Every second
		spawnGroundTarget();
		spawnTimer = 0;
	}
	// Handle bomb target circle visibility
	if (bombKeyPressed && !fighterJet.bombTargetCircle.visible) {
		fighterJet.bombTargetCircle.visible = true;
	} else if (!bombKeyPressed && fighterJet.bombTargetCircle.visible) {
		fighterJet.bombTargetCircle.visible = false;
	}
	// Update bullets
	for (var b = bullets.length - 1; b >= 0; b--) {
		var bullet = bullets[b];
		if (bullet.y < -50) {
			bullet.destroy();
			bullets.splice(b, 1);
			continue;
		}
		// Check bullet vs ground targets (only cars and army vans)
		for (var gt = groundTargets.length - 1; gt >= 0; gt--) {
			var target = groundTargets[gt];
			if (bullet.intersects(target) && (target.targetType === 'car' || target.targetType === 'armyVan')) {
				createExplosion(target.x, target.y);
				LK.setScore(LK.getScore() + target.points);
				updateScore();
				bullet.destroy();
				bullets.splice(b, 1);
				target.destroy();
				groundTargets.splice(gt, 1);
				break;
			}
		}
	}
	// Update bombs
	for (var bo = bombs.length - 1; bo >= 0; bo--) {
		var bomb = bombs[bo];
		if (bomb.y > 2800) {
			bomb.destroy();
			bombs.splice(bo, 1);
			continue;
		}
		// Check bomb vs ground targets (buildings and S-300 systems)
		for (var gt = groundTargets.length - 1; gt >= 0; gt--) {
			var target = groundTargets[gt];
			if (bomb.intersects(target) && (target.targetType === 'building' || target.targetType === 'targetBuilding' || target.targetType === 's300System')) {
				createExplosion(target.x, target.y);
				LK.setScore(LK.getScore() + target.points);
				updateScore();
				if (target.targetType === 's300System') {
					fighterJet.aaSystemsDestroyed++;
					if (fighterJet.aaSystemsDestroyed >= 5 && fighterJet.lives < 3) {
						fighterJet.lives++;
						fighterJet.aaSystemsDestroyed = 0;
						updateLivesDisplay();
					}
				}
				bomb.destroy();
				bombs.splice(bo, 1);
				target.destroy();
				groundTargets.splice(gt, 1);
				break;
			}
		}
	}
	// Update missiles
	for (var m = missiles.length - 1; m >= 0; m--) {
		var missile = missiles[m];
		// Update missile target to current fighter jet position
		missile.targetX = fighterJet.x;
		missile.targetY = fighterJet.y;
		// Check if missile was intercepted by flare
		if (checkMissileFlareCollision(missile)) {
			missiles.splice(m, 1);
			continue;
		}
		// Check missile vs fighter jet
		if (missile.intersects(fighterJet)) {
			createExplosion(fighterJet.x, fighterJet.y);
			fighterJet.lives--;
			updateLivesDisplay();
			if (fighterJet.lives <= 0) {
				LK.showGameOver();
				return;
			}
			missile.destroy();
			missiles.splice(m, 1);
			continue;
		}
		// Remove missiles that go off screen
		if (missile.y > 2800 || missile.y < -50 || missile.x < -50 || missile.x > 2100) {
			missile.destroy();
			missiles.splice(m, 1);
		}
	}
	// Update ground targets
	for (var gt = groundTargets.length - 1; gt >= 0; gt--) {
		var target = groundTargets[gt];
		if (target.y > 2800) {
			target.destroy();
			groundTargets.splice(gt, 1);
		}
	}
	// Update flares
	for (var f = flares.length - 1; f >= 0; f--) {
		var flare = flares[f];
		if (flare.destroyed) {
			flares.splice(f, 1);
		}
	}
	// Update explosions
	for (var e = explosions.length - 1; e >= 0; e--) {
		var explosion = explosions[e];
		if (explosion.destroyed) {
			explosions.splice(e, 1);
		}
	}
};

===================================================================
--- original.js
+++ change.js
@@ -172,8 +172,19 @@
 var scrollSpeed = 3;
 var spawnTimer = 0;
 var gameSpeed = 1;
 var bombKeyPressed = false;
+var flareKeyPressed = false;
+var keyStates = {};
+// Add keyboard event listeners
+document.addEventListener('keydown', function (event) {
+	keyStates[event.code] = true;
+	keyStates[event.key] = true;
+});
+document.addEventListener('keyup', function (event) {
+	keyStates[event.code] = false;
+	keyStates[event.key] = false;
+});
 // UI Elements
 var scoreText = new Text2('Score: 0', {
 	size: 60,
 	fill: '#ffffff'
@@ -281,11 +292,14 @@
 		game.addChild(bullet);
 		LK.getSound('shoot').play();
 	}
 };
-// Keyboard handler for F key (flares)
-LK.on('keydown', function (event) {
-	if ((event.code === 'KeyF' || event.key === 'f' || event.key === 'F') && fighterJet.flareCount > 0) {
+game.update = function () {
+	// Handle keyboard input
+	var currentFlareKeyPressed = keyStates['KeyF'] || keyStates['f'] || keyStates['F'];
+	var currentBombKeyPressed = keyStates['KeyB'] || keyStates['b'] || keyStates['B'];
+	// Fire flare on F key press (only once per press)
+	if (currentFlareKeyPressed && !flareKeyPressed && fighterJet.flareCount > 0) {
 		var flare = new Flare();
 		flare.x = fighterJet.x + (Math.random() - 0.5) * 100;
 		flare.y = fighterJet.y + (Math.random() - 0.5) * 100;
 		flares.push(flare);
@@ -293,28 +307,19 @@
 		fighterJet.flareCount--;
 		updateFlareDisplay();
 		LK.getSound('flare').play();
 	}
-});
-// Keyboard handler for B key (bombing)
-LK.on('keydown', function (event) {
-	if (event.code === 'KeyB' || event.key === 'b' || event.key === 'B') {
-		bombKeyPressed = true;
+	flareKeyPressed = currentFlareKeyPressed;
+	// Drop bomb on B key press (only once per press)
+	if (currentBombKeyPressed && !bombKeyPressed) {
 		var bomb = new Bomb();
 		bomb.x = fighterJet.x;
 		bomb.y = fighterJet.y + 50;
 		bombs.push(bomb);
 		game.addChild(bomb);
 		LK.getSound('bomb').play();
 	}
-});
-// Keyboard handler for B key release
-LK.on('keyup', function (event) {
-	if (event.code === 'KeyB' || event.key === 'b' || event.key === 'B') {
-		bombKeyPressed = false;
-	}
-});
-game.update = function () {
+	bombKeyPressed = currentBombKeyPressed;
 	spawnTimer++;
 	// Spawn new ground targets
 	if (spawnTimer >= 60) {
 		// Every second