/**** 
* Classes
****/
var LifePowerUp = Container.expand(function () {
	var self = Container.call(this);
	var powerUpGraphics = self.createAsset('lifePowerUp', 'Life Power Up', 0.5, 0.5);
	self.speed = 2;
	self.move = function () {
		self.y += self.speed;
		if (self.y > 2732 + self.height / 2) {
			self.destroy();
		}
	};
});
// Define the EnemyBullet class
var EnemyBullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletGraphics = self.createAsset('enemyBullet', 'Enemy Bullet', 0.5, 0.5);
	self.speed = 5;
	self.move = function () {
		self.y += self.speed;
	};
});
// Define the DimStar class for stars with lower brightness
var DimStar = Container.expand(function () {
	var self = Container.call(this);
	var starGraphics = self.createAsset('dimStar', 'Dim Star', 0.5, 0.5);
	starGraphics.alpha = Math.random() * 0.5 + 0.1; // Random alpha between 0.1 and 0.6
	self.speed = Math.random() * 4 + 2; // Random speed between 2 and 6
	self.move = function () {
		self.y += self.speed;
		if (self.y > 2732 + self.height / 2) {
			self.y = -self.height / 2;
		}
	};
});
// Define the Space Ranger class
var SpaceRanger = Container.expand(function () {
	var self = Container.call(this);
	var rangerGraphics = self.createAsset('spaceRanger', 'Space Ranger', 0.5, 0.5);
	self.velocity = {
		x: 0,
		y: 0
	};
	self.acceleration = {
		x: 0,
		y: 0
	};
	self.maxSpeed = 2.5;
	self.lives = 6; // Space Ranger starts with 6 lives
	self.shootingBonusActive = false;
	self.shootingBonusEndTime = 0;
	self.applyPhysics = function () {
		self.velocity.x += self.acceleration.x;
		self.velocity.y += self.acceleration.y;
		self.velocity.x = Math.max(-self.maxSpeed, Math.min(self.maxSpeed, self.velocity.x));
		self.velocity.y = Math.max(-self.maxSpeed, Math.min(self.maxSpeed, self.velocity.y));
		self.x += self.velocity.x;
		self.y += self.velocity.y;
		self.x = Math.max(self.width / 2, Math.min(2048 - self.width / 2, self.x));
		self.y = Math.max(self.height / 2, Math.min(2732 - self.height / 2, self.y));
		self.acceleration.x = self.acceleration.y = 0; // Reset acceleration after applying
	};
});
// Define the Meteor class
var Meteor = Container.expand(function () {
	var self = Container.call(this);
	var meteorGraphics = self.createAsset('meteor', 'Meteor', 0.5, 0.5);
	self.speed = 3;
	self.move = function () {
		self.y += self.speed;
	};
});
// Define the Alien class
var Alien = Container.expand(function () {
	var self = Container.call(this);
	var alienGraphics = self.createAsset('alien', 'Alien', 0.5, 0.5);
	self.speed = 2;
	self.health = 5; // Aliens can take 5 hits before being destroyed
	self.move = function () {
		self.y += self.speed;
	};
});
// Define the HeroBullet class
var HeroBullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletGraphics = self.createAsset('heroBullet', 'Hero Bullet', 0.5, 0.5);
	self.speed = -10;
	self.move = function () {
		self.y += self.speed;
	};
});
// Define the EnemyType1 class
var EnemyType1 = Container.expand(function () {
	var self = Container.call(this);
	var enemyGraphics = self.createAsset('enemyType1', 'Enemy Type 1', 0.5, 0.5);
	self.speed = 2;
	self.health = 3;
	self.shootInterval = 120; // Enemy shoots every 2 seconds
	self.lastShotTick = 0; // Last tick when the enemy shot
	self.move = function () {
		self.y += self.speed;
	};
	self.shoot = function () {
		if (LK.ticks - self.lastShotTick >= self.shootInterval) {
			var newEnemyBullet = new EnemyBullet();
			newEnemyBullet.x = self.x;
			newEnemyBullet.y = self.y + self.height / 2;
			// Calculate the direction to the hero
			var direction = {
				x: spaceRanger.x - self.x,
				y: spaceRanger.y - self.y
			};
			var magnitude = Math.sqrt(direction.x * direction.x + direction.y * direction.y);
			direction.x /= magnitude;
			direction.y /= magnitude;
			// Set bullet speed to aim at the hero
			newEnemyBullet.speedX = direction.x * 5;
			newEnemyBullet.speedY = direction.y * 5;
			newEnemyBullet.move = function () {
				this.x += this.speedX;
				this.y += this.speedY;
			};
			game.addChild(newEnemyBullet);
			enemyBullets.push(newEnemyBullet);
			self.lastShotTick = LK.ticks;
		}
	};
});
// Define the EnemyType2 class
var EnemyType2 = Container.expand(function () {
	var self = Container.call(this);
	var enemyGraphics = self.createAsset('enemyType2', 'Enemy Type 2', 0.5, 0.5);
	self.speed = 4;
	self.health = 2;
	self.move = function () {
		self.y += self.speed;
	};
});
// Define the EnemyType3 class
var EnemyType3 = Container.expand(function () {
	var self = Container.call(this);
	var enemyGraphics = self.createAsset('enemyType3', 'Enemy Type 3', 0.5, 0.5);
	self.speed = 1;
	self.health = 7;
	self.move = function () {
		self.y += self.speed;
	};
});
// Define the EnemyType4 class
var EnemyType4 = Container.expand(function () {
	var self = Container.call(this);
	var enemyGraphics = self.createAsset('enemyType4', 'Enemy Type 4', 0.5, 0.5);
	self.speed = 3;
	self.health = 4;
	self.move = function () {
		self.x += Math.sin(self.y / 100) * 10; // Sine wave movement
		self.y += self.speed;
	};
});
// Define the EnemyType5 class
var EnemyType5 = Container.expand(function () {
	var self = Container.call(this);
	var enemyGraphics = self.createAsset('enemyType5', 'Enemy Type 5', 0.5, 0.5);
	self.speed = 5;
	self.health = 1;
	self.move = function () {
		if (self.x < 1024) {
			self.x += self.speed;
		} else {
			self.x -= self.speed;
		}
		self.y += self.speed / 2;
	};
});
var ShootingPowerUp = Container.expand(function () {
	var self = Container.call(this);
	var powerUpGraphics = self.createAsset('shootingPowerUp', 'Shooting Power Up', 0.5, 0.5);
	self.speed = 2;
	self.move = function () {
		self.y += self.speed;
		if (self.y > 2732 + self.height / 2) {
			self.destroy();
		}
	};
});
// Define the WaveDisplay class
var WaveDisplay = Container.expand(function () {
	var self = Container.call(this);
	self.waveCount = 1;
	var waveLabel = new Text2('WAVE', {
		size: 50,
		fill: "#ffffff"
	});
	waveLabel.anchor.set(0.5, 0);
	waveLabel.y = -60;
	self.addChild(waveLabel);
	var waveText = new Text2('Wave: 1', {
		size: 100,
		fill: "#ffffff"
	});
	waveText.anchor.set(0.5, 0);
	self.addChild(waveText);
	self.updateWave = function (wave) {
		waveText.setText('Wave: ' + wave);
	};
	self.positionAtTopRight = function () {
		self.x = 2048 - self.width / 2 - 20;
		self.y = 50;
	};
	self.positionAtTopRight();
});
// Define the ScoreDisplay class
var ScoreDisplay = Container.expand(function () {
	var self = Container.call(this);
	var scoreLabel = new Text2('SCORE', {
		size: 50,
		fill: "#ffffff"
	});
	scoreLabel.anchor.set(0.5, 0);
	scoreLabel.y = -60;
	self.addChild(scoreLabel);
	var scoreText = new Text2('Score: 0', {
		size: 100,
		fill: "#ffffff"
	});
	scoreText.anchor.set(0.5, 0);
	self.addChild(scoreText);
	self.updateScore = function (score) {
		scoreText.setText('Score: ' + score);
	};
	self.positionAtTopLeft = function () {
		self.x = self.width / 2 + 20;
		self.y = 50;
	};
	self.positionAtTopLeft();
});
// Define the LivesDisplay class
var LivesDisplay = Container.expand(function () {
	var self = Container.call(this);
	self.lives = 6;
	var livesLabel = new Text2('LIVES', {
		size: 50,
		fill: "#ffffff"
	});
	livesLabel.anchor.set(0.5, 0);
	livesLabel.y = -60;
	self.addChild(livesLabel);
	var livesText = new Text2('Lives: 6', {
		size: 100,
		fill: "#ffffff"
	}); // Include the initial number of lives in the text
	self.livesIcons = [];
	for (var i = 0; i < self.lives; i++) {
		var heartIcon = self.createAsset('heartIcon', 'Heart Icon', 0, 0);
		heartIcon.x = livesText.width + 10 + i * (heartIcon.width + 10);
		heartIcon.y = livesText.height / 2;
		self.livesIcons.push(heartIcon);
		self.addChild(heartIcon);
	}
	livesText.anchor.set(0.5, 0);
	self.addChild(livesText);
	self.updateLives = function (lives) {
		livesText.setText('Lives: ' + lives); // Update the lives text when lives change
		for (var i = 0; i < self.livesIcons.length; i++) {
			self.livesIcons[i].visible = i < lives;
		}
	};
	self.positionAtTopCenter = function () {
		self.x = 2048 / 2 - self.width / 2;
		self.y = 50;
	};
	self.positionAtTopCenter();
});

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

/**** 
* Game Code
****/
// Initialize background stars with a mix of Star and DimStar
var stars = [];
for (var i = 0; i < 100; i++) {
	var starType = DimStar; // Use only DimStar class for star creation
	var star = new starType();
	star.x = Math.random() * 2048;
	star.y = Math.random() * 2732;
	stars.push(star);
	game.addChild(star);
}
// Instantiate ScoreDisplay
var scoreDisplay = new ScoreDisplay();
LK.gui.topLeft.addChild(scoreDisplay);
// Instantiate LivesDisplay
var livesDisplay = new LivesDisplay();
// Instantiate WaveDisplay
var waveDisplay = new WaveDisplay();
// Initialize wave properties
var waveCount = 1;
var waveInterval = 600; // Initial interval for spawning waves
var enemiesPerWave = 10; // Initial number of enemies per wave
LK.gui.topRight.addChild(waveDisplay);
// Add lives display to the GUI overlay at the top center of the screen
LK.gui.top.addChild(livesDisplay);
// Initialize important asset arrays
var meteors = [];
var aliens = [];
var heroBullets = [];
var enemyBullets = [];
// Create the Space Ranger
var spaceRanger = game.addChild(new SpaceRanger());
spaceRanger.x = 2048 / 2;
spaceRanger.y = 2732 - 200; // Start position near the bottom of the screen
// Touch event handling
function handleTouchMove(obj) {
	var touchPos = obj.event.getLocalPosition(game);
	spaceRanger.x = touchPos.x;
	spaceRanger.y = touchPos.y;
}
game.on('move', handleTouchMove);
// Game tick event
LK.on('tick', function () {
	// Move all stars
	for (var s = stars.length - 1; s >= 0; s--) {
		stars[s].move();
	}
	// Move all meteors
	for (var i = meteors.length - 1; i >= 0; i--) {
		meteors[i].move();
		if (meteors[i].y > 2732 + meteors[i].height / 2) {
			meteors[i].destroy();
			meteors.splice(i, 1);
		}
	}
	// Move all aliens and make them shoot if they are of EnemyType1
	for (var j = aliens.length - 1; j >= 0; j--) {
		aliens[j].move();
		if (aliens[j] instanceof EnemyType1) {
			aliens[j].shoot();
		}
		if (aliens[j].y > 2732 + aliens[j].height / 2) {
			aliens[j].destroy();
			aliens.splice(j, 1);
		}
	}
	// Move all enemy bullets
	for (var p = enemyBullets.length - 1; p >= 0; p--) {
		enemyBullets[p].move();
		if (enemyBullets[p].y > 2732 + enemyBullets[p].height / 2) {
			enemyBullets[p].destroy();
			enemyBullets.splice(p, 1);
		} else if (spaceRanger.intersects(enemyBullets[p])) {
			spaceRanger.lives--;
			livesDisplay.updateLives(spaceRanger.lives);
			LK.effects.flashScreen(0xff0000, 500);
			if (spaceRanger.lives <= 0) {
				LK.showGameOver();
				return;
			}
			enemyBullets[p].destroy();
			enemyBullets.splice(p, 1);
		}
	}
	// Move all hero bullets
	for (var k = heroBullets.length - 1; k >= 0; k--) {
		heroBullets[k].move();
		if (heroBullets[k].y < -heroBullets[k].height / 2) {
			heroBullets[k].destroy();
			heroBullets.splice(k, 1);
		}
	}
	// Collision detection between hero bullets and aliens
	for (var l = heroBullets.length - 1; l >= 0; l--) {
		for (var m = aliens.length - 1; m >= 0; m--) {
			if (heroBullets[l].intersects(aliens[m])) {
				// Decrease alien health and check if it should be destroyed
				aliens[m].health--;
				if (aliens[m].health <= 0) {
					// Update score for destroying an alien
					LK.setScore(LK.getScore() + 100);
					scoreDisplay.updateScore(LK.getScore());
					// Chance to drop a life power-up
					if (Math.random() < 0.0667) {
						// 1 in 15 chance
						var shootingPowerUp = new ShootingPowerUp();
						shootingPowerUp.x = aliens[m].x;
						shootingPowerUp.y = aliens[m].y;
						game.addChild(shootingPowerUp);
					}
					aliens[m].destroy();
					aliens.splice(m, 1);
				}
				// Destroy the hero bullet
				heroBullets[l].destroy();
				heroBullets.splice(l, 1);
				break;
			}
		}
	}
	// Collision detection between space ranger and meteors/aliens
	for (var n = 0; n < meteors.length; n++) {
		if (spaceRanger.intersects(meteors[n])) {
			spaceRanger.lives--;
			livesDisplay.updateLives(spaceRanger.lives);
			LK.effects.flashScreen(0xff0000, 500);
			if (spaceRanger.lives <= 0) {
				LK.showGameOver();
				return;
			}
			meteors[n].destroy();
			meteors.splice(n, 1);
		}
	}
	for (var o = 0; o < aliens.length; o++) {
		if (spaceRanger.intersects(aliens[o])) {
			spaceRanger.lives--;
			LK.effects.flashScreen(0xff0000, 500);
			if (spaceRanger.lives <= 0) {
				LK.showGameOver();
				return;
			}
			aliens[o].destroy();
			aliens.splice(o, 1);
		}
	}
	// Pick up ShootingPowerUp
	for (var p = 0; p < game.children.length; p++) {
		var obj = game.children[p];
		if (obj instanceof ShootingPowerUp && spaceRanger.intersects(obj)) {
			spaceRanger.shootingBonusActive = true;
			spaceRanger.shootingBonusEndTime = LK.ticks + 600; // 10 seconds at 60FPS
			obj.destroy();
		}
	}
	// Pick up LifePowerUp
	for (var p = 0; p < game.children.length; p++) {
		var obj = game.children[p];
		if (obj instanceof LifePowerUp && spaceRanger.intersects(obj)) {
			spaceRanger.lives++;
			livesDisplay.updateLives(spaceRanger.lives);
			obj.destroy();
		}
	}
	// Spawn enemies in waves
	if (LK.ticks % waveInterval === 0 && meteors.length + aliens.length <= 2) {
		for (var i = 0; i < enemiesPerWave; i++) {
			var enemyTypes = [Meteor, Alien, EnemyType1, EnemyType2, EnemyType3, EnemyType4, EnemyType5];
			var randomTypeIndex = Math.floor(Math.random() * enemyTypes.length);
			var EnemyClass = enemyTypes[randomTypeIndex];
			var newEnemy = new EnemyClass();
			newEnemy.x = Math.random() * 2048;
			newEnemy.y = -newEnemy.height / 2;
			game.addChild(newEnemy);
			if (newEnemy instanceof Meteor) {
				meteors.push(newEnemy);
			} else {
				aliens.push(newEnemy);
			}
		}
		// Increase the number of enemies for the next wave more conservatively
		enemiesPerWave += Math.ceil(waveCount * 0.1);
		// Decrease the interval between waves more conservatively to a minimum of 300 ticks
		waveInterval = Math.max(300, waveInterval - Math.ceil(waveCount * 0.1));
		// Increment wave count
		waveCount++;
		// Update the wave counter display
		waveDisplay.updateWave(waveCount);
	}
	// Fire hero bullets
	if (LK.ticks % 30 == 0) {
		var newHeroBullet = new HeroBullet();
		newHeroBullet.x = spaceRanger.x;
		newHeroBullet.y = spaceRanger.y - spaceRanger.height / 2;
		heroBullets.push(newHeroBullet);
		game.addChild(newHeroBullet);
		if (spaceRanger.shootingBonusActive) {
			var leftDiagonalBullet = new HeroBullet();
			leftDiagonalBullet.x = spaceRanger.x;
			leftDiagonalBullet.y = spaceRanger.y - spaceRanger.height / 2;
			leftDiagonalBullet.speedX = -Math.cos(Math.PI / 4) * leftDiagonalBullet.speed;
			leftDiagonalBullet.speedY = -Math.sin(Math.PI / 4) * leftDiagonalBullet.speed;
			leftDiagonalBullet.move = function () {
				this.x += this.speedX;
				this.y += this.speedY;
			};
			var rightDiagonalBullet = new HeroBullet();
			rightDiagonalBullet.x = spaceRanger.x;
			rightDiagonalBullet.y = spaceRanger.y - spaceRanger.height / 2;
			rightDiagonalBullet.speedX = Math.cos(Math.PI / 4) * rightDiagonalBullet.speed;
			rightDiagonalBullet.speedY = -Math.sin(Math.PI / 4) * rightDiagonalBullet.speed;
			rightDiagonalBullet.move = function () {
				this.x += this.speedX;
				this.y += this.speedY;
			};
			heroBullets.push(leftDiagonalBullet);
			heroBullets.push(rightDiagonalBullet);
			game.addChild(leftDiagonalBullet);
			game.addChild(rightDiagonalBullet);
		}
		// Deactivate shooting bonus if time has expired
		if (spaceRanger.shootingBonusEndTime && LK.ticks > spaceRanger.shootingBonusEndTime) {
			spaceRanger.shootingBonusActive = false;
		}
	}
});

===================================================================
--- original.js
+++ change.js
@@ -481,18 +481,22 @@
 		if (spaceRanger.shootingBonusActive) {
 			var leftDiagonalBullet = new HeroBullet();
 			leftDiagonalBullet.x = spaceRanger.x;
 			leftDiagonalBullet.y = spaceRanger.y - spaceRanger.height / 2;
+			leftDiagonalBullet.speedX = -Math.cos(Math.PI / 4) * leftDiagonalBullet.speed;
+			leftDiagonalBullet.speedY = -Math.sin(Math.PI / 4) * leftDiagonalBullet.speed;
 			leftDiagonalBullet.move = function () {
-				this.x -= Math.cos(Math.PI / 4) * this.speed;
-				this.y += Math.sin(Math.PI / 4) * this.speed;
+				this.x += this.speedX;
+				this.y += this.speedY;
 			};
 			var rightDiagonalBullet = new HeroBullet();
 			rightDiagonalBullet.x = spaceRanger.x;
 			rightDiagonalBullet.y = spaceRanger.y - spaceRanger.height / 2;
+			rightDiagonalBullet.speedX = Math.cos(Math.PI / 4) * rightDiagonalBullet.speed;
+			rightDiagonalBullet.speedY = -Math.sin(Math.PI / 4) * rightDiagonalBullet.speed;
 			rightDiagonalBullet.move = function () {
-				this.x += Math.cos(Math.PI / 4) * this.speed;
-				this.y += Math.sin(Math.PI / 4) * this.speed;
+				this.x += this.speedX;
+				this.y += this.speedY;
 			};
 			heroBullets.push(leftDiagonalBullet);
 			heroBullets.push(rightDiagonalBullet);
 			game.addChild(leftDiagonalBullet);