/**** 
* Classes
****/ 
// Bullet class
var Bullet = Container.expand(function () {
	var self = Container.call(this);
	//var bulletGraphics = self.attachAsset('bullet', {
	//	anchorX: 0.5,
	//	anchorY: 0.5
	//});
	self.direction = 0;
	self.speed_y = -10;
	self.speed_x = 0;
	self.power = 2;
	self.update = function () {
		self.x += self.speed_x;
		self.y += self.speed_y;
	};
});
// Player class
var Player = Container.expand(function () {
	var self = Container.call(this);
	var playerGraphics = self.attachAsset('player', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.shoot = function () {
		forward_lazer();
		split_shot();
	};
});
// PowerUp class
var PowerUp = Container.expand(function () {
	var self = Container.call(this);
	var powerUpGraphics = self.attachAsset('powerUp', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.update = function () {
		self.y += 1;
	};
});
// Function to spawn power-ups
//<Assets used in the game will automatically appear here>
//<Write imports for supported plugins here>
// enemy_1 class
var enemy_1 = Container.expand(function () {
	var self = Container.call(this);
	self.n = 0;
	self.xpos = 0.0;
	var enemy_1Graphics = self.attachAsset('enemy_1', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 3;
	self.update = function () {
		self.y += self.speed;
		self.x = self.xpos + Math.sin(self.y / 100) * enemy_1_movemwnt_amplitude; // Make enemy_1 move in a sine wave
		//self.x = self.xpos + Math.floor(self.y);
	};
});
// enemy_2 class
var enemy_2 = Container.expand(function () {
	var self = Container.call(this);
	self.n = 0;
	self.xpos = 0.0;
	self.lives = 5;
	var enemy_2Graphics = self.attachAsset('enemy_2', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 3;
	self.update = function () {
		self.y += self.speed;
		self.x = self.xpos + Math.sin(self.y / 100) * enemy_2_movemwnt_amplitude; // Make enemy_2 move in a sine wave
	};
});
// enemy_3 class
var enemy_3 = Container.expand(function () {
	var self = Container.call(this);
	self.n = 0;
	self.xpos = 0.0;
	self.lives = 10;
	self.odd = 0;
	var enemy_3Graphics = self.attachAsset('enemy_3', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 4;
	self.update = function () {
		self.y += self.speed;
		self.x = self.xpos + self.odd * Math.sin(self.y / 200) * enemy_1_movemwnt_amplitude; // Make enemy_3 move in a sine wave
	};
});

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

/**** 
* Game Code
****/ 
function createExplosion(x, y) {
	var explosion = LK.getAsset('explosion', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: x,
		y: y
	});
	game.addChild(explosion);
	LK.effects.flashObject(explosion, 0xFFFFFF, 100);
	LK.setTimeout(function () {
		explosion.destroy();
	}, 100);
}
function forward_lazer() {
	var bullet = new Bullet();
	bullet.x = player.x;
	bullet.y = player.y - 50;
	bullet.power = 2;
	bullet.attachAsset('bullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	bullets.push(bullet);
	game.addChild(bullet);
	LK.getSound('Player_shoot').play();
}
function split_shot() {
	var bullet1 = new Bullet();
	bullet1.x = player.x - 80;
	bullet1.y = player.y - 50;
	bullet1.power = 1;
	bullet1.speed_x = -0.9;
	bullet1.attachAsset('bullet2', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	var bullet2 = new Bullet();
	bullet2.x = player.x + 80;
	bullet2.y = player.y - 50;
	bullet2.power = 1;
	bullet2.speed_x = 0.9;
	bullet2.attachAsset('bullet2', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	bullets.push(bullet1);
	bullets.push(bullet2);
	game.addChild(bullet1);
	game.addChild(bullet2);
}
var background = LK.getAsset('background', {
	anchorX: 0.5,
	anchorY: 0.5,
	x: 2048 / 2,
	y: 2732 / 2
});
game.addChild(background);
LK.playMusic('background_music', {
	loop: true
});
function spawnPowerUp() {
	var powerUp = new PowerUp();
	powerUp.x = Math.random() * 2048;
	powerUp.y = -50;
	powerUps.push(powerUp);
	game.addChild(powerUp);
}
// Function to spawn enemy_1s
function spawnEnemy_1() {
	if (enemy_1s.length > 1 * enemy_1_wave_length) {
		return;
	}
	var groupX = Math.random() * (2048 - enemy_1_movemwnt_amplitude * 2) + enemy_1_movemwnt_amplitude; // Generate a random x position for the group
	for (var i = 0.0; i < enemy_1_wave_length; i++) {
		var enemy = new enemy_1();
		enemy.n = i;
		enemy.y = -50 - i * 110; // Assign a slightly different y position to each enemy
		enemy.xpos = groupX; // Assign the group x position to the enemy
		enemy.group = enemy_1GroupCount; // Assign the group number to the enemy
		enemy_1s.push(enemy);
		game.addChild(enemy);
	}
	// Increment enemy_1 group counter
	enemy_1GroupCount += 1;
}
// Function to spawn enemy_1s
function spawnEnemy_2() {
	if (enemy_2s.length > 2 * enemy_2_wave_length) {
		return;
	}
	if (LK.getScore() > 200) {
		var groupX = Math.random() * (2048 - enemy_2_movemwnt_amplitude * 2) + enemy_2_movemwnt_amplitude; // Generate a random x position for the group
		for (var i = 0.0; i < enemy_2_wave_length; i++) {
			var groupX = Math.random() * (2048 - enemy_2_movemwnt_amplitude * 2) + enemy_2_movemwnt_amplitude; // Generate a random x position 
			var enemy = new enemy_2();
			enemy.n = i;
			enemy.y = -50 - i * 110; // Assign a slightly different y position to each enemy
			enemy.xpos = groupX; // Assign the group x position to the enemy
			enemy.group = enemy_2GroupCount; // Assign the group number to the enemy
			enemy_2s.push(enemy);
			game.addChild(enemy);
		}
	}
	// Increment enemy_1 group counter
	enemy_2GroupCount += 1;
}
// Function to spawn enemy_3s
function spawnEnemy_3() {
	if (enemy_3s.length > 2 * enemy_3_wave_length) {
		return;
	}
	if (LK.getScore() > 1000) {
		var groupX = Math.random() * (2048 - enemy_3_movemwnt_amplitude * 2) + enemy_3_movemwnt_amplitude; // Generate a random x position for the group
		odd = -1;
		for (var i = 0.0; i < enemy_3_wave_length; i++) {
			var enemy = new enemy_3();
			enemy.n = i;
			enemy.odd = odd;
			enemy.y = -50 - i / 2 * 50; // Assign a slightly different y position to each enemy
			enemy.xpos = groupX; // Assign the group x position to the enemy
			enemy.group = enemy_3GroupCount; // Assign the group number to the enemy
			enemy_3s.push(enemy);
			game.addChild(enemy);
			odd *= -1;
		}
		// Increment enemy_1 group counter
		enemy_3GroupCount += 1;
	}
}
var powerUpLevelText = new Text2('Power-Up Level: 0', {
	size: 100,
	fill: 0xFFFFFF
});
powerUpLevelText.anchor.set(0, 0);
LK.gui.topLeft.addChild(powerUpLevelText);
// Function to update the power-up level display
function updatePowerUpLevelDisplay() {
	powerUpLevelText.setText('Power-Up Level: ' + poweruplevel);
}
// Example: Update power-up level when player collects a power-up
function onPowerUpCollected() {
	poweruplevel += 1;
	updatePowerUpLevelDisplay();
}
var scoreText = new Text2('Score: 0', {
	size: 100,
	fill: 0xFFFFFF
});
scoreText.anchor.set(1, 0);
LK.gui.topRight.addChild(scoreText);
// Function to update the score display
function updateScoreDisplay() {
	scoreText.setText('Score: ' + LK.getScore());
}
// Update the score display whenever the score changes
LK.on('scoreChange', updateScoreDisplay);
/**** 
* Variables
****/ 
// Initialize player
var enemy_1_movemwnt_amplitude = 200;
var enemy_2_movemwnt_amplitude = 20;
var enemy_3_movemwnt_amplitude = 40;
var poweruplevel = 0;
var player = game.addChild(new Player());
player.x = 2048 / 2;
player.y = 2500;
// Initialize arrays
var bullets = [];
var powerUps = [];
// Initialize arrays for enemy_1 instances
var enemy_1s = [];
// Initialize arrays for enemy_2 instances
var enemy_2s = [];
// Initialize arrays for enemy_3 instances
var enemy_3s = [];
// Initialize enemy_1 group counter
var enemy_1GroupCount = 0;
var enemy_2GroupCount = 0;
var enemy_3GroupCount = 0;
var enemy_1_wave_length = 5;
var enemy_2_wave_length = 5;
var enemy_3_wave_length = 14;
// Game update function
game.update = function () {
	// Update enemy_1s
	for (var i = enemy_1s.length - 1; i >= 0; i--) {
		var enemy_1 = enemy_1s[i];
		//enemy_1.update();
		if (enemy_1.y > 2732) {
			enemy_1.destroy();
			enemy_1s.splice(i, 1);
		}
	}
	// Update enemy_2s
	for (var i = enemy_2s.length - 1; i >= 0; i--) {
		var enemy_2 = enemy_2s[i];
		//enemy_2.update();
		if (enemy_2.y > 2732) {
			enemy_2.destroy();
			enemy_2s.splice(i, 1);
		}
	}
	// Update enemy_3s
	for (var i = enemy_3s.length - 1; i >= 0; i--) {
		var enemy_3 = enemy_3s[i];
		//enemy_3.update();
		if (enemy_3.y > 2732) {
			enemy_3.destroy();
			enemy_3s.splice(i, 1);
		}
	}
	// Update bullets
	for (var j = bullets.length - 1; j >= 0; j--) {
		var bullet = bullets[j];
		bullet.update();
		if (bullet.y < 0) {
			bullet.destroy();
			bullets.splice(j, 1);
		}
	}
	// Update power-ups
	for (var k = powerUps.length - 1; k >= 0; k--) {
		var powerUp = powerUps[k];
		powerUp.update();
		if (powerUp.y > 2732) {
			powerUp.destroy();
			powerUps.splice(k, 1);
		}
	}
	// Check for collisions
	checkCollisions();
};
// Function to check for collisions
function checkCollisions() {
	// Check bullet and enemy_1 collisions
	for (var i = bullets.length - 1; i >= 0; i--) {
		var bullet = bullets[i];
		for (var j = enemy_1s.length - 1; j >= 0; j--) {
			var enemy_1 = enemy_1s[j];
			if (bullet.intersects(enemy_1)) {
				LK.getSound('bullet_hit').play();
				LK.effects.flashObject(enemy_1, 0xFFFFFF, 100); // Flash enemy_1 white for 100ms
				createExplosion(bullet.x, bullet.y);
				bullet.destroy();
				createExplosion(enemy_1.x, enemy_1.y);
				enemy_1.destroy();
				bullets.splice(i, 1);
				enemy_1s.splice(j, 1);
				LK.getSound('enemy_eplode').play();
				LK.setScore(LK.getScore() + 10); // Increase score by 10 for enemy_1
				updateScoreDisplay(); // Update the score display
				// Check if all enemies in the defeated enemy's group are also defeated
				if (!enemy_1s.some(function (e) {
					return e.group === enemy_1.group;
				})) {
					// If true, spawn a powerup
					spawnPowerUp();
				}
				break;
			}
		}
	}
	// Check bullet and enemy_2 collisions
	for (var i = bullets.length - 1; i >= 0; i--) {
		var bullet = bullets[i];
		for (var j = enemy_2s.length - 1; j >= 0; j--) {
			var enemy_2 = enemy_2s[j];
			if (bullet.intersects(enemy_2)) {
				LK.getSound('bullet_hit').play();
				LK.effects.flashObject(enemy_2, 0xFFFFFF, 100); // Flash enemy_2 white for 100ms 
				createExplosion(bullet.x, bullet.y);
				bullet.destroy();
				enemy_2.lives -= bullet.power;
				if (enemy_2.lives < 0) {
					var explosion2 = LK.getAsset('explosion2', {
						anchorX: 0.5,
						anchorY: 0.5,
						x: enemy_2.x,
						y: enemy_2.y
					});
					game.addChild(explosion2);
					LK.effects.flashObject(explosion2, 0xFFFFFF, 100);
					LK.setTimeout(function () {
						explosion2.destroy();
					}, 100);
					enemy_2.destroy();
					enemy_2s.splice(j, 1);
					LK.getSound('enemy_eplode').play();
					LK.setScore(LK.getScore() + 20 * bullet.power); // Increase score by 20 for enemy_2
					updateScoreDisplay(); // Update the score display
					if (!enemy_2s.some(function (e) {
						return e.group === enemy_2.group;
					})) {
						// If true, spawn a powerup
						spawnPowerUp();
					}
				} else {
					bullets.splice(i, 1);
				}
				break;
			}
		}
	}
	// Check bullet and enemy_3 collisions
	for (var i = bullets.length - 1; i >= 0; i--) {
		var bullet = bullets[i];
		for (var j = enemy_3s.length - 1; j >= 0; j--) {
			var enemy_3 = enemy_3s[j];
			if (bullet.intersects(enemy_3)) {
				LK.getSound('bullet_hit').play();
				LK.effects.flashObject(enemy_3, 0xFFFFFF, 100); // Flash enemy_3 white for 100ms
				createExplosion(bullet.x, bullet.y);
				bullet.destroy();
				enemy_3.lives -= bullet.power;
				if (enemy_3.lives < 0) {
					var explosion2 = LK.getAsset('explosion2', {
						anchorX: 0.5,
						anchorY: 0.5,
						x: enemy_3.x,
						y: enemy_3.y
					});
					game.addChild(explosion2);
					LK.effects.flashObject(explosion2, 0xFFFFFF, 100);
					LK.setTimeout(function () {
						explosion2.destroy();
					}, 100);
					createExplosion(enemy_3.x, enemy_3.y);
					enemy_3.destroy();
					enemy_3s.splice(j, 1);
					LK.getSound('enemy_eplode').play();
					LK.setScore(LK.getScore() + 50 * bullet.power); // Increase score by 20 for enemy_2
					updateScoreDisplay(); // Update the score display
					if (!enemy_3s.some(function (e) {
						return e.group === enemy_3.group;
					})) {
						// If true, spawn a powerup
						spawnPowerUp();
					}
				} else {
					bullets.splice(i, 1);
				}
				break;
			}
		}
	}
	// Check player and power-up collisions
	for (var k = powerUps.length - 1; k >= 0; k--) {
		var powerUp = powerUps[k];
		if (player.intersects(powerUp)) {
			powerUp.destroy();
			powerUps.splice(k, 1);
			onPowerUpCollected();
		}
	}
	// Check player and enemy collisions
	for (var i = enemy_1s.length - 1; i >= 0; i--) {
		var enemy_1 = enemy_1s[i];
		if (player.intersects(enemy_1)) {
			var explosion2 = LK.getAsset('explosion2', {
				anchorX: 0.5,
				anchorY: 0.5,
				x: player.x,
				y: player.y
			});
			game.addChild(explosion2);
			LK.effects.flashObject(explosion2, 0xFFFFFF, 100);
			LK.setTimeout(function () {
				explosion2.destroy();
			}, 200);
			player.destroy();
			LK.showGameOver();
			return;
		}
	}
	for (var i = enemy_2s.length - 1; i >= 0; i--) {
		var enemy_2 = enemy_2s[i];
		if (player.intersects(enemy_2)) {
			LK.showGameOver();
			return;
		}
	}
	for (var i = enemy_3s.length - 1; i >= 0; i--) {
		var enemy_3 = enemy_3s[i];
		if (player.intersects(enemy_3)) {
			LK.showGameOver();
			return;
		}
	}
}
// Set intervals for spawning
LK.setInterval(spawnEnemy_1, 4000);
LK.setInterval(spawnEnemy_2, 5200);
LK.setInterval(spawnEnemy_3, 6400);
// Player controls
game.down = function (x, y, obj) {
	player.x = x;
	player.y = y;
};
game.move = function (x, y, obj) {
	player.x = x;
	player.y = y;
};
game.up = function (x, y, obj) {
	player.shoot();
};

===================================================================
--- original.js
+++ change.js
@@ -159,9 +159,11 @@
 	x: 2048 / 2,
 	y: 2732 / 2
 });
 game.addChild(background);
-// Function to spawn power-ups
+LK.playMusic('background_music', {
+	loop: true
+});
 function spawnPowerUp() {
 	var powerUp = new PowerUp();
 	powerUp.x = Math.random() * 2048;
 	powerUp.y = -50;