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

/**** 
* Classes
****/ 
var Button = Container.expand(function (assetId, callback) {
	var self = Container.call(this);
	var buttonGraphics = self.attachAsset(assetId, {
		anchorX: 0.5,
		anchorY: 0.5,
		alpha: 0.7
	});
	self.width = buttonGraphics.width;
	self.height = buttonGraphics.height;
	self.callback = callback;
	self.down = function () {
		buttonGraphics.alpha = 0.9;
		self.isPressed = true;
		if (self.callback) {
			self.callback();
		}
	};
	self.up = function () {
		buttonGraphics.alpha = 0.7;
		self.isPressed = false;
	};
	return self;
});
var Enemy = Container.expand(function () {
	var self = Container.call(this);
	var enemyGraphics = self.attachAsset('enemy', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.width = enemyGraphics.width;
	self.height = enemyGraphics.height;
	self.health = 2; // Enemy needs 2 hits to die
	self.movementDirection = Math.random() > 0.5 ? 1 : -1;
	self.movementSpeed = 2 + Math.random() * 2;
	self.verticalSpeed = 0.5 + Math.random() * 0.5;
	self.shootCooldown = 60 + Math.floor(Math.random() * 120);
	// Method to create explosion animation
	self.explode = function () {
		// Stop any movement
		self.movementSpeed = 0;
		self.verticalSpeed = 0;
		// Create explosion animation with tweens
		tween(enemyGraphics, {
			alpha: 0,
			scaleX: 3,
			scaleY: 3
		}, {
			duration: 800,
			easing: tween.easeOut
		});
		// Create red pulsing effect with tint
		tween(enemyGraphics, {
			tint: 0xff0000
		}, {
			duration: 300,
			easing: tween.linear
		});
	};
	self.update = function () {
		// Move horizontally
		self.x += self.movementDirection * self.movementSpeed;
		// Move vertically (downward)
		self.y += self.verticalSpeed;
		// Change direction if at screen edge
		if (self.x < self.width / 2 || self.x > 2048 - self.width / 2) {
			self.movementDirection *= -1;
		}
		// Maybe shoot
		self.shootCooldown--;
		if (self.shootCooldown <= 0) {
			self.shoot();
			self.shootCooldown = 60 + Math.floor(Math.random() * 120);
		}
		// Check for player collision
		if (self.intersects(player)) {
			gameOver();
		}
		// Remove if off bottom of screen
		if (self.y > SCREEN_HEIGHT + 100) {
			self.destroy();
			var index = enemies.indexOf(self);
			if (index > -1) {
				enemies.splice(index, 1);
			}
		}
	};
	self.shoot = function () {
		// Check if this enemy already has a bullet active
		var hasActiveBullet = false;
		for (var i = 0; i < enemyBullets.length; i++) {
			if (enemyBullets[i].owner === self) {
				hasActiveBullet = true;
				break;
			}
		}
		// Only shoot if no active bullet
		if (!hasActiveBullet) {
			var bullet = new EnemyBullet();
			bullet.x = self.x;
			bullet.y = self.y + self.height / 2;
			bullet.owner = self; // Mark which enemy shot this bullet
			game.addChild(bullet);
			enemyBullets.push(bullet);
		}
	};
	return self;
});
var EnemyBullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletGraphics = self.attachAsset('enemyBullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.width = bulletGraphics.width;
	self.height = bulletGraphics.height;
	self.speed = 5; // Increased speed for faster falling bullets
	self.update = function () {
		self.y += self.speed;
		// Remove if off screen
		if (self.y > 2732 + 50) {
			self.destroy();
			var index = enemyBullets.indexOf(self);
			if (index > -1) {
				enemyBullets.splice(index, 1);
			}
		}
		// This was a duplicate check, removed for clarity
	};
	return self;
});
var Platform = Container.expand(function () {
	var self = Container.call(this);
	var platformGraphics = self.attachAsset('platform', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.width = platformGraphics.width;
	self.height = platformGraphics.height;
	return self;
});
var Player = Container.expand(function () {
	var self = Container.call(this);
	var playerGraphics = self.attachAsset('player', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.width = playerGraphics.width;
	self.height = playerGraphics.height;
	self.velocityY = 0;
	self.velocityX = 0;
	self.isJumping = false;
	self.facingRight = true;
	self.shootCooldown = 0;
	self.speed = 8;
	self.explode = function () {
		// Stop any movement
		self.velocityX = 0;
		self.velocityY = 0;
		// Create explosion animation with tweens
		tween(playerGraphics, {
			alpha: 0,
			scaleX: 3,
			scaleY: 3
		}, {
			duration: 800,
			easing: tween.easeOut
		});
		// Create red pulsing effect
		tween(playerGraphics, {
			tint: 0xff0000
		}, {
			duration: 300,
			easing: tween.linear
		});
	};
	self.jump = function () {
		if (!self.isJumping) {
			self.velocityY = -20;
			self.isJumping = true;
			LK.getSound('jump').play();
		}
	};
	self.shoot = function () {
		if (self.shootCooldown <= 0) {
			var bullet = new PlayerBullet();
			bullet.x = self.x;
			bullet.y = self.y - self.height / 2;
			bullet.direction = 0; // Direction 0 means upward
			game.addChild(bullet);
			playerBullets.push(bullet);
			self.shootCooldown = 15;
			LK.getSound('shoot').play();
		}
	};
	self.update = function () {
		// Apply direct movement instead of physics
		self.x += self.velocityX;
		// Decrease shoot cooldown
		if (self.shootCooldown > 0) {
			self.shootCooldown--;
		}
		// Boundary checks
		if (self.x < self.width / 2) {
			self.x = self.width / 2;
		}
		if (self.x > 2048 - self.width / 2) {
			self.x = 2048 - self.width / 2;
		}
		// Bottom boundary check for player
		if (self.y < SCREEN_HEIGHT - 300) {
			self.y = self.y;
		} else if (self.y > SCREEN_HEIGHT - 150) {
			self.y = SCREEN_HEIGHT - 150;
		}
		// Update facing direction based on velocity
		if (self.velocityX > 0) {
			self.facingRight = true;
		} else if (self.velocityX < 0) {
			self.facingRight = false;
		}
		// Flip player graphic based on direction
		if (self.facingRight) {
			playerGraphics.scaleX = 1;
		} else {
			playerGraphics.scaleX = -1;
		}
	};
	self.checkPlatformCollisions = function () {
		var wasOnPlatform = false;
		for (var i = 0; i < platforms.length; i++) {
			var platform = platforms[i];
			// Only check for collision if falling
			if (self.velocityY > 0) {
				var playerBottom = self.y + self.height / 2;
				var platformTop = platform.y - platform.height / 2;
				// If player's bottom is at or slightly below platform top
				if (Math.abs(playerBottom - platformTop) < 20) {
					// And player is horizontally within platform bounds
					if (self.x + self.width / 2 > platform.x - platform.width / 2 && self.x - self.width / 2 < platform.x + platform.width / 2) {
						// Land on platform
						self.y = platformTop - self.height / 2;
						self.velocityY = 0;
						self.isJumping = false;
						wasOnPlatform = true;
					}
				}
			}
		}
		if (!wasOnPlatform && !self.isJumping && self.velocityY === 0) {
			self.isJumping = true;
		}
	};
	return self;
});
var PlayerBullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletGraphics = self.attachAsset('bullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.width = bulletGraphics.width;
	self.height = bulletGraphics.height;
	self.direction = 1; // 1 for right, -1 for left
	self.speed = 20;
	self.update = function () {
		// If direction is 0, move upward, otherwise use horizontal movement
		if (self.direction === 0) {
			self.y -= self.speed;
		} else {
			self.x += self.speed * self.direction;
		}
		// Remove if off screen
		if (self.x < -50 || self.x > 2048 + 50 || self.y < -50) {
			self.destroy();
			var index = playerBullets.indexOf(self);
			if (index > -1) {
				playerBullets.splice(index, 1);
			}
		}
		// Check for enemy collisions
		for (var i = enemies.length - 1; i >= 0; i--) {
			var enemy = enemies[i];
			if (self.intersects(enemy)) {
				// Remove bullet
				self.destroy();
				var bulletIndex = playerBullets.indexOf(self);
				if (bulletIndex > -1) {
					playerBullets.splice(bulletIndex, 1);
				}
				// Reduce enemy health
				enemy.health -= 1;
				// Flash enemy to show damage - different color based on remaining health
				if (enemy.health == 1) {
					LK.effects.flashObject(enemy, 0xff9900, 300); // Orange flash for 1 health remaining
				} else {
					LK.effects.flashObject(enemy, 0xff0000, 300); // Red flash for other cases
				}
				// Play hit sound
				LK.getSound('enemyHit').play();
				// Check if enemy is dead
				if (enemy.health <= 0) {
					// Play explosion animation
					enemy.explode();
					// Remove enemy after animation completes
					LK.setTimeout(function () {
						enemy.destroy();
						var enemyIndex = enemies.indexOf(enemy);
						if (enemyIndex > -1) {
							enemies.splice(enemyIndex, 1);
						}
					}, 800);
					// Increase score
					LK.setScore(LK.getScore() + 10);
					scoreTxt.setText(LK.getScore());
				}
				break;
			}
		}
		// Check for enemy bullet collisions
		for (var i = enemyBullets.length - 1; i >= 0; i--) {
			var enemyBullet = enemyBullets[i];
			if (self.intersects(enemyBullet)) {
				// Remove enemy bullet
				enemyBullet.destroy();
				var enemyBulletIndex = enemyBullets.indexOf(enemyBullet);
				if (enemyBulletIndex > -1) {
					enemyBullets.splice(enemyBulletIndex, 1);
				}
				// Remove player bullet
				self.destroy();
				var playerBulletIndex = playerBullets.indexOf(self);
				if (playerBulletIndex > -1) {
					playerBullets.splice(playerBulletIndex, 1);
				}
				// Flash effect for bullet collision
				LK.effects.flashObject(enemyBullet, 0xffff00, 100);
				// Increase score slightly
				LK.setScore(LK.getScore() + 1);
				scoreTxt.setText(LK.getScore());
				break;
			}
		}
	};
	return self;
});

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

/**** 
* Game Code
****/ 
// Constants
var GRAVITY = 0.8;
var SCREEN_WIDTH = 2048;
var SCREEN_HEIGHT = 2732;
var PLATFORM_COUNT = 8;
var MAX_ENEMIES = 6;
// Game variables
var player;
var platforms = [];
var playerBullets = [];
var enemies = [];
var enemyBullets = [];
var gameStarted = false;
var spawnTimer = 0;
var jumpButton, shootButton, moveLeftButton, moveRightButton;
var scoreTxt;
function initGame() {
	// Add background
	var background = LK.getAsset('background', {
		anchorX: 0,
		anchorY: 0,
		x: 0,
		y: 0
	});
	game.addChild(background);
	// Add score display
	scoreTxt = new Text2('0', {
		size: 80,
		fill: 0xFFFFFF
	});
	scoreTxt.anchor.set(1, 0);
	LK.gui.topRight.addChild(scoreTxt);
	scoreTxt.x = -20;
	scoreTxt.y = 20;
	// Create player
	player = new Player();
	player.x = SCREEN_WIDTH / 2;
	player.y = SCREEN_HEIGHT - 200; // Position at bottom of screen
	game.addChild(player);
	// Create initial platforms
	generatePlatforms();
	// Create UI controls
	createControls();
	// Start game music
	LK.playMusic('gameMusic');
	// Remove start screen text
	if (startText && startText.parent) {
		startText.parent.removeChild(startText);
	}
	if (instructionsText && instructionsText.parent) {
		instructionsText.parent.removeChild(instructionsText);
	}
	// Set game as started
	gameStarted = true;
}
function generatePlatforms() {
	// No platforms needed for vertical shooter
}
function createControls() {
	// Shoot button
	shootButton = new Button('shootButton', function () {
		player.shoot();
	});
	shootButton.x = SCREEN_WIDTH - 200;
	shootButton.y = SCREEN_HEIGHT - 200;
	game.addChild(shootButton);
	// Move left button
	moveLeftButton = new Button('moveLeftButton');
	moveLeftButton.x = 200;
	moveLeftButton.y = SCREEN_HEIGHT - 200;
	game.addChild(moveLeftButton);
	// Move right button
	moveRightButton = new Button('moveRightButton');
	moveRightButton.x = 400;
	moveRightButton.y = SCREEN_HEIGHT - 200;
	game.addChild(moveRightButton);
}
function spawnEnemy() {
	if (enemies.length < MAX_ENEMIES) {
		var enemy = new Enemy();
		enemy.x = Math.random() * (SCREEN_WIDTH - 200) + 100;
		enemy.y = 100;
		game.addChild(enemy);
		enemies.push(enemy);
	}
}
function gameOver() {
	LK.getSound('playerHit').play();
	LK.effects.flashScreen(0xff0000, 500);
	// Trigger player explosion animation
	player.explode();
	// Delay the game over screen to let explosion animation play
	LK.setTimeout(function () {
		LK.showGameOver();
	}, 800);
}
function handleMove(x, y, obj) {
	// We don't need to handle move events for this game
}
function handleDown(x, y, obj) {
	// Start the game on first touch if not started
	if (!gameStarted) {
		initGame();
		return;
	}
}
function handleUp(x, y, obj) {
	// We'll handle button releases in their own event handlers
}
// Game event handlers
game.move = handleMove;
game.down = handleDown;
game.up = handleUp;
// Main game update loop
game.update = function () {
	if (!gameStarted) {
		return;
	}
	// Handle player movement from buttons
	if (moveLeftButton.isPressed) {
		player.velocityX = -player.speed;
	} else if (moveRightButton.isPressed) {
		player.velocityX = player.speed;
	} else {
		player.velocityX = 0;
	}
	// Update player
	player.update();
	// Update player bullets
	for (var i = playerBullets.length - 1; i >= 0; i--) {
		playerBullets[i].update();
	}
	// Update enemies
	for (var i = 0; i < enemies.length; i++) {
		enemies[i].update();
	}
	// Update enemy bullets
	for (var i = enemyBullets.length - 1; i >= 0; i--) {
		enemyBullets[i].update();
	}
	// Spawn enemies
	spawnTimer++;
	if (spawnTimer >= 120) {
		// Every 2 seconds
		spawnEnemy();
		spawnTimer = 0;
	}
	// No screen boundary game over for vertical shooter
};
// Start screen message
var startText = new Text2('Tap to Start', {
	size: 70,
	fill: 0xFFFFFF
});
startText.anchor.set(0.5, 0.5);
startText.x = SCREEN_WIDTH / 2;
startText.y = SCREEN_HEIGHT / 2;
game.addChild(startText);
// Instructions
var instructionsText = new Text2('Use left/right buttons to move\nTap Shoot to fire at enemies from above', {
	size: 40,
	fill: 0xCCCCCC
});
instructionsText.anchor.set(0.5, 0.5);
instructionsText.x = SCREEN_WIDTH / 2;
instructionsText.y = SCREEN_HEIGHT / 2 + 200;
game.addChild(instructionsText);
;

===================================================================
--- original.js
+++ change.js
@@ -93,13 +93,25 @@
 			}
 		}
 	};
 	self.shoot = function () {
-		var bullet = new EnemyBullet();
-		bullet.x = self.x;
-		bullet.y = self.y + self.height / 2;
-		game.addChild(bullet);
-		enemyBullets.push(bullet);
+		// Check if this enemy already has a bullet active
+		var hasActiveBullet = false;
+		for (var i = 0; i < enemyBullets.length; i++) {
+			if (enemyBullets[i].owner === self) {
+				hasActiveBullet = true;
+				break;
+			}
+		}
+		// Only shoot if no active bullet
+		if (!hasActiveBullet) {
+			var bullet = new EnemyBullet();
+			bullet.x = self.x;
+			bullet.y = self.y + self.height / 2;
+			bullet.owner = self; // Mark which enemy shot this bullet
+			game.addChild(bullet);
+			enemyBullets.push(bullet);
+		}
 	};
 	return self;
 });
 var EnemyBullet = Container.expand(function () {
@@ -120,34 +132,9 @@
 			if (index > -1) {
 				enemyBullets.splice(index, 1);
 			}
 		}
-		// Check for player collision
-		if (self.intersects(player)) {
-			// Remove bullet when it hits player
-			self.destroy();
-			var bulletIndex = enemyBullets.indexOf(self);
-			if (bulletIndex > -1) {
-				enemyBullets.splice(bulletIndex, 1);
-			}
-			// Flash player to show damage
-			LK.effects.flashObject(player, 0xff0000, 300);
-			// Then trigger game over
-			gameOver();
-		}
-		// Check for player collision
-		if (self.intersects(player)) {
-			// Remove bullet when it hits player
-			self.destroy();
-			var bulletIndex = enemyBullets.indexOf(self);
-			if (bulletIndex > -1) {
-				enemyBullets.splice(bulletIndex, 1);
-			}
-			// Flash player to show damage
-			LK.effects.flashObject(player, 0xff0000, 300);
-			// Then trigger game over
-			gameOver();
-		}
+		// This was a duplicate check, removed for clarity
 	};
 	return self;
 });
 var Platform = Container.expand(function () {