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

/**** 
* Classes
****/ 
// Enemy Type 1: Basic Enemy - moves straight down
var BasicEnemy = Container.expand(function () {
	var self = Container.call(this);
	var enemyGraphics = self.attachAsset('enemyBox', {
		anchorX: 0.5,
		anchorY: 0.5,
		tint: 0xff0000
	});
	self.speed = 2;
	self.points = 10;
	self.health = 1;
	self.type = 'basic';
	self.update = function () {
		self.y += self.speed;
	};
	return self;
});
// Enemy Type 6: Boss Enemy - large, slow, high health
var BossEnemy = Container.expand(function () {
	var self = Container.call(this);
	var enemyGraphics = self.attachAsset('enemyBox', {
		anchorX: 0.5,
		anchorY: 0.5,
		tint: 0xffff00,
		scaleX: 2,
		scaleY: 2
	});
	self.speed = 0.5;
	self.points = 200;
	self.health = 10;
	self.type = 'boss';
	self.update = function () {
		self.y += self.speed;
	};
	return self;
});
// Legacy Enemy for compatibility
// Enemy Type 2: Fast Enemy - moves faster
var FastEnemy = Container.expand(function () {
	var self = Container.call(this);
	var enemyGraphics = self.attachAsset('enemyBox', {
		anchorX: 0.5,
		anchorY: 0.5,
		tint: 0x00ff00,
		scaleX: 0.8,
		scaleY: 0.8
	});
	self.speed = 5;
	self.points = 20;
	self.health = 1;
	self.type = 'fast';
	self.update = function () {
		self.y += self.speed;
	};
	return self;
});
// Gold Coin class for collectible coins
var GoldCoin = Container.expand(function () {
	var self = Container.call(this);
	var coinGraphics = self.attachAsset('flower', {
		anchorX: 0.5,
		anchorY: 0.5,
		tint: 0xFFD700,
		scaleX: 0.8,
		scaleY: 0.8
	});
	self.speedY = 2 + Math.random() * 3; // Downward speed
	self.speedX = (Math.random() - 0.5) * 8; // Random horizontal speed
	self.gravity = 0.15;
	self.bounce = 0.7;
	self.life = 0;
	self.maxLife = 600; // 10 seconds at 60fps
	self.value = 5; // Points value
	// Add floating animation
	tween(coinGraphics, {
		scaleX: 1.2,
		scaleY: 1.2
	}, {
		duration: 500,
		easing: tween.easeInOut
	});
	self.update = function () {
		self.life++;
		// Apply physics
		self.speedY += self.gravity;
		self.x += self.speedX;
		self.y += self.speedY;
		// Bounce off ground
		if (self.y >= 2732 - 100) {
			self.y = 2732 - 100;
			self.speedY *= -self.bounce;
			self.speedX *= 0.8; // Friction
		}
		// Bounce off walls
		if (self.x <= 50 || self.x >= 1998) {
			self.speedX *= -1;
		}
		// Add floating effect
		coinGraphics.rotation += 0.1;
		// Remove after maxLife
		if (self.life >= self.maxLife) {
			self.destroy();
			for (var i = goldCoins.length - 1; i >= 0; i--) {
				if (goldCoins[i] === self) {
					goldCoins.splice(i, 1);
					break;
				}
			}
		}
	};
	return self;
});
// Set background
var Hero = Container.expand(function () {
	var self = Container.call(this);
	var heroGraphics = self.attachAsset('heroBox', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.fireRate = 5; // Fire every 5 ticks (4x faster)
	self.lastFire = 0;
	self.barrels = 1; // Start with 1 barrel
	self.update = function () {
		// Auto fire bullets
		if (LK.ticks - self.lastFire > self.fireRate) {
			self.lastFire = LK.ticks;
			// Fire bullets from multiple barrels
			for (var b = 0; b < self.barrels; b++) {
				var bullet = new HeroBullet();
				// Calculate bullet position to spread horizontally toward top of screen
				var totalWidth = (self.barrels - 1) * 80; // 80 pixels apart horizontally
				var offsetX = b * 80 - totalWidth / 2; // Center the spread
				bullet.x = self.x + offsetX;
				bullet.y = self.y - 50;
				heroBullets.push(bullet);
				game.addChild(bullet);
				// Create small smoke effect when firing
				createSmokeEffect(bullet.x, bullet.y + 10, 0.3);
			}
		}
	};
	return self;
});
var HeroBullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletGraphics = self.attachAsset('heroBullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = -60;
	self.update = function () {
		self.y += self.speed;
	};
	return self;
});
// Smoke Particle class for realistic flame smoke effects
var SmokeParticle = Container.expand(function () {
	var self = Container.call(this);
	var smokeGraphics = self.attachAsset('flower', {
		anchorX: 0.5,
		anchorY: 0.5,
		tint: 0x666666,
		alpha: 0.8
	});
	self.speed = -1 - Math.random() * 2; // Upward movement with variation
	self.drift = (Math.random() - 0.5) * 3; // Horizontal drift
	self.life = 0;
	self.maxLife = 60 + Math.random() * 40; // 1-1.5 seconds at 60fps
	self.initialScale = 0.5 + Math.random() * 0.5;
	self.targetScale = self.initialScale * (2 + Math.random() * 2);
	// Set initial scale
	smokeGraphics.scaleX = self.initialScale;
	smokeGraphics.scaleY = self.initialScale;
	// Start scaling and fading animation
	tween(smokeGraphics, {
		scaleX: self.targetScale,
		scaleY: self.targetScale,
		alpha: 0
	}, {
		duration: self.maxLife * 16.67,
		// Convert ticks to milliseconds
		easing: tween.easeOut
	});
	self.update = function () {
		self.life++;
		self.y += self.speed;
		self.x += self.drift;
		// Add some turbulence
		self.x += Math.sin(self.life * 0.1) * 0.5;
		// Remove when life expires
		if (self.life >= self.maxLife) {
			self.destroy();
			// Remove from smoke particles array
			for (var i = smokeParticles.length - 1; i >= 0; i--) {
				if (smokeParticles[i] === self) {
					smokeParticles.splice(i, 1);
					break;
				}
			}
		}
	};
	return self;
});
// Enemy Type 5: Spinner Enemy - rotates while moving
var SpinnerEnemy = Container.expand(function () {
	var self = Container.call(this);
	var enemyGraphics = self.attachAsset('enemyBox', {
		anchorX: 0.5,
		anchorY: 0.5,
		tint: 0xff00ff
	});
	self.speed = 2.5;
	self.points = 25;
	self.health = 2;
	self.type = 'spinner';
	self.rotationSpeed = 0.1;
	self.update = function () {
		self.y += self.speed;
		self.rotation += self.rotationSpeed;
	};
	return self;
});
// Enemy Type 3: Tank Enemy - slow but strong
var TankEnemy = Container.expand(function () {
	var self = Container.call(this);
	var enemyGraphics = self.attachAsset('enemyBox', {
		anchorX: 0.5,
		anchorY: 0.5,
		tint: 0x888888,
		scaleX: 1.5,
		scaleY: 1.5
	});
	self.speed = 1;
	self.points = 50;
	self.health = 3;
	self.type = 'tank';
	self.update = function () {
		self.y += self.speed;
	};
	return self;
});
// Enemy Type 4: Zigzag Enemy - moves in zigzag pattern
var ZigzagEnemy = Container.expand(function () {
	var self = Container.call(this);
	var enemyGraphics = self.attachAsset('enemyBox', {
		anchorX: 0.5,
		anchorY: 0.5,
		tint: 0x0000ff
	});
	self.speed = 2;
	self.points = 30;
	self.health = 1;
	self.type = 'zigzag';
	self.direction = 1;
	self.zigzagSpeed = 3;
	self.update = function () {
		self.y += self.speed;
		self.x += self.direction * self.zigzagSpeed;
		// Change direction if hitting screen edges
		if (self.x <= 100 || self.x >= 1948) {
			self.direction *= -1;
		}
	};
	return self;
});

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

/**** 
* Game Code
****/ 
// Set background
// Legacy Enemy for compatibility
var Enemy = BasicEnemy;
game.setBackgroundColor(0x87CEEB); // Light sky blue color
// Add multiple cloud elements to create a cloudy sky effect
var cloud1 = LK.getAsset('manzara', {
	width: 300,
	height: 150,
	scaleX: 3,
	scaleY: 1.5,
	alpha: 0.6,
	tint: 0xFFFFFF,
	x: 200,
	y: 300
});
game.addChildAt(cloud1, 0);
var cloud2 = LK.getAsset('manzara', {
	width: 400,
	height: 200,
	scaleX: 4,
	scaleY: 2,
	alpha: 0.4,
	tint: 0xF0F8FF,
	x: 800,
	y: 150
});
game.addChildAt(cloud2, 0);
var cloud3 = LK.getAsset('manzara', {
	width: 350,
	height: 180,
	scaleX: 3.5,
	scaleY: 1.8,
	alpha: 0.5,
	tint: 0xFFFFFF,
	x: 1400,
	y: 400
});
game.addChildAt(cloud3, 0);
var cloud4 = LK.getAsset('manzara', {
	width: 250,
	height: 120,
	scaleX: 2.5,
	scaleY: 1.2,
	alpha: 0.7,
	tint: 0xF5F5F5,
	x: 1600,
	y: 200
});
game.addChildAt(cloud4, 0);
var cloud5 = LK.getAsset('manzara', {
	width: 300,
	height: 160,
	scaleX: 3,
	scaleY: 1.6,
	alpha: 0.3,
	tint: 0xFFFFFF,
	x: 100,
	y: 600
});
game.addChildAt(cloud5, 0);
// Game variables
var hero;
var enemies = [];
var heroBullets = [];
var smokeParticles = [];
var goldCoins = [];
var waveNumber = 1;
var enemiesSpawned = 0;
var enemiesPerWave = 5;
var spawnTimer = 0;
var spawnRate = 60; // Spawn every 60 ticks initially
var dragNode = null;
// Create hero
hero = new Hero();
hero.x = 2048 / 2;
hero.y = 2732 - 200;
game.addChild(hero);
// Score display
var scoreTxt = new Text2('Score: 0', {
	size: 80,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
// Wave display
var waveTxt = new Text2('Wave: 1', {
	size: 60,
	fill: 0xFFFF00
});
waveTxt.anchor.set(0, 0);
waveTxt.x = 50;
waveTxt.y = 50;
LK.gui.topLeft.addChild(waveTxt);
// Function to create smoke effect
function createSmokeEffect(x, y, intensity) {
	intensity = intensity || 1;
	var particleCount = 3 + Math.floor(Math.random() * 5) * intensity;
	for (var i = 0; i < particleCount; i++) {
		var smoke = new SmokeParticle();
		smoke.x = x + (Math.random() - 0.5) * 30;
		smoke.y = y + (Math.random() - 0.5) * 20;
		smokeParticles.push(smoke);
		game.addChild(smoke);
	}
}
// Function to drop gold coins when enemy dies
function dropGoldCoins(x, y, enemyType) {
	var coinCount = 3 + Math.floor(Math.random() * 2); // 3-4 coins
	// Boss enemies drop more coins
	if (enemyType === 'boss') {
		coinCount += 2;
	}
	for (var i = 0; i < coinCount; i++) {
		var coin = new GoldCoin();
		coin.x = x + (Math.random() - 0.5) * 50;
		coin.y = y + (Math.random() - 0.5) * 30;
		// Add some initial velocity spread
		coin.speedX = (Math.random() - 0.5) * 12;
		coin.speedY = -2 - Math.random() * 4;
		goldCoins.push(coin);
		game.addChild(coin);
	}
}
// Touch controls
game.down = function (x, y, obj) {
	dragNode = hero;
	hero.x = x;
	hero.y = y;
};
game.move = function (x, y, obj) {
	if (dragNode) {
		dragNode.x = x;
		dragNode.y = y;
	}
};
game.up = function (x, y, obj) {
	dragNode = null;
};
// Main game loop
game.update = function () {
	// Spawn enemies
	spawnTimer++;
	if (spawnTimer >= spawnRate && enemiesSpawned < enemiesPerWave) {
		spawnTimer = 0;
		var enemy;
		var enemyType = Math.random();
		// Spawn different enemy types based on wave number and random chance
		if (waveNumber >= 10 && enemyType < 0.1) {
			// Boss enemy (10% chance after wave 10)
			enemy = new BossEnemy();
		} else if (waveNumber >= 7 && enemyType < 0.25) {
			// Spinner enemy (15% chance after wave 7)
			enemy = new SpinnerEnemy();
		} else if (waveNumber >= 5 && enemyType < 0.4) {
			// Zigzag enemy (15% chance after wave 5)
			enemy = new ZigzagEnemy();
		} else if (waveNumber >= 3 && enemyType < 0.6) {
			// Tank enemy (20% chance after wave 3)
			enemy = new TankEnemy();
		} else if (waveNumber >= 2 && enemyType < 0.8) {
			// Fast enemy (20% chance after wave 2)
			enemy = new FastEnemy();
		} else {
			// Basic enemy (always available, 20% chance in later waves)
			enemy = new BasicEnemy();
		}
		enemy.x = Math.random() * (2048 - 200) + 100;
		enemy.y = -100;
		// Apply wave speed modifier to base speed
		enemy.speed = enemy.speed + waveNumber * 0.3;
		enemies.push(enemy);
		game.addChild(enemy);
		enemiesSpawned++;
	}
	// Update and check bullet collisions
	for (var i = heroBullets.length - 1; i >= 0; i--) {
		var bullet = heroBullets[i];
		// Remove bullets that go off screen
		if (bullet.y < -50) {
			bullet.destroy();
			heroBullets.splice(i, 1);
			continue;
		}
		// Check collision with enemies
		for (var j = enemies.length - 1; j >= 0; j--) {
			var enemy = enemies[j];
			if (bullet.intersects(enemy)) {
				// Enemy hit - reduce health
				enemy.health--;
				// Remove bullet
				bullet.destroy();
				heroBullets.splice(i, 1);
				// Check if enemy is destroyed
				if (enemy.health <= 0) {
					LK.setScore(LK.getScore() + enemy.points);
					scoreTxt.setText('Score: ' + LK.getScore());
					// Create smoke effect when enemy is destroyed
					createSmokeEffect(enemy.x, enemy.y, enemy.type === 'boss' ? 3 : 1);
					// Drop gold coins when enemy dies
					dropGoldCoins(enemy.x, enemy.y, enemy.type);
					enemy.destroy();
					enemies.splice(j, 1);
				} else {
					// Enemy damaged but not destroyed - flash red and create small smoke
					LK.effects.flashObject(enemy, 0xff0000, 200);
					createSmokeEffect(enemy.x, enemy.y, 0.5);
				}
				break;
			}
		}
	}
	// Update and check enemy collisions with hero
	for (var k = enemies.length - 1; k >= 0; k--) {
		var enemy = enemies[k];
		// Check if enemy reached hero
		if (enemy.intersects(hero)) {
			LK.showGameOver();
			return;
		}
		// Remove enemies that go off screen
		if (enemy.y > 2732 + 100) {
			enemy.destroy();
			enemies.splice(k, 1);
		}
	}
	// Update and check gold coin collection
	for (var c = goldCoins.length - 1; c >= 0; c--) {
		var coin = goldCoins[c];
		// Check if hero collects coin
		if (coin.intersects(hero)) {
			LK.setScore(LK.getScore() + coin.value);
			scoreTxt.setText('Score: ' + LK.getScore());
			// Add collection effect
			tween(coin, {
				scaleX: 2,
				scaleY: 2,
				alpha: 0
			}, {
				duration: 200,
				easing: tween.easeOut,
				onFinish: function onFinish() {
					coin.destroy();
				}
			});
			goldCoins.splice(c, 1);
			LK.getSound('4581').play();
		}
	}
	// Check if wave is complete
	if (enemies.length === 0 && enemiesSpawned >= enemiesPerWave) {
		waveNumber++;
		waveTxt.setText('Wave: ' + waveNumber);
		enemiesSpawned = 0;
		enemiesPerWave = Math.min(5 + waveNumber, 15); // Increase enemies per wave
		spawnRate = Math.max(30, 60 - waveNumber * 2); // Decrease spawn rate
		// Increase barrels every 5 waves
		hero.barrels = Math.floor(waveNumber / 5) + 1;
	}
};
// Start background music
LK.playMusic('1a439');

===================================================================
--- original.js
+++ change.js
@@ -61,8 +61,64 @@
 		self.y += self.speed;
 	};
 	return self;
 });
+// Gold Coin class for collectible coins
+var GoldCoin = Container.expand(function () {
+	var self = Container.call(this);
+	var coinGraphics = self.attachAsset('flower', {
+		anchorX: 0.5,
+		anchorY: 0.5,
+		tint: 0xFFD700,
+		scaleX: 0.8,
+		scaleY: 0.8
+	});
+	self.speedY = 2 + Math.random() * 3; // Downward speed
+	self.speedX = (Math.random() - 0.5) * 8; // Random horizontal speed
+	self.gravity = 0.15;
+	self.bounce = 0.7;
+	self.life = 0;
+	self.maxLife = 600; // 10 seconds at 60fps
+	self.value = 5; // Points value
+	// Add floating animation
+	tween(coinGraphics, {
+		scaleX: 1.2,
+		scaleY: 1.2
+	}, {
+		duration: 500,
+		easing: tween.easeInOut
+	});
+	self.update = function () {
+		self.life++;
+		// Apply physics
+		self.speedY += self.gravity;
+		self.x += self.speedX;
+		self.y += self.speedY;
+		// Bounce off ground
+		if (self.y >= 2732 - 100) {
+			self.y = 2732 - 100;
+			self.speedY *= -self.bounce;
+			self.speedX *= 0.8; // Friction
+		}
+		// Bounce off walls
+		if (self.x <= 50 || self.x >= 1998) {
+			self.speedX *= -1;
+		}
+		// Add floating effect
+		coinGraphics.rotation += 0.1;
+		// Remove after maxLife
+		if (self.life >= self.maxLife) {
+			self.destroy();
+			for (var i = goldCoins.length - 1; i >= 0; i--) {
+				if (goldCoins[i] === self) {
+					goldCoins.splice(i, 1);
+					break;
+				}
+			}
+		}
+	};
+	return self;
+});
 // Set background
 var Hero = Container.expand(function () {
 	var self = Container.call(this);
 	var heroGraphics = self.attachAsset('heroBox', {
@@ -290,8 +346,9 @@
 var hero;
 var enemies = [];
 var heroBullets = [];
 var smokeParticles = [];
+var goldCoins = [];
 var waveNumber = 1;
 var enemiesSpawned = 0;
 var enemiesPerWave = 5;
 var spawnTimer = 0;
@@ -329,8 +386,26 @@
 		smokeParticles.push(smoke);
 		game.addChild(smoke);
 	}
 }
+// Function to drop gold coins when enemy dies
+function dropGoldCoins(x, y, enemyType) {
+	var coinCount = 3 + Math.floor(Math.random() * 2); // 3-4 coins
+	// Boss enemies drop more coins
+	if (enemyType === 'boss') {
+		coinCount += 2;
+	}
+	for (var i = 0; i < coinCount; i++) {
+		var coin = new GoldCoin();
+		coin.x = x + (Math.random() - 0.5) * 50;
+		coin.y = y + (Math.random() - 0.5) * 30;
+		// Add some initial velocity spread
+		coin.speedX = (Math.random() - 0.5) * 12;
+		coin.speedY = -2 - Math.random() * 4;
+		goldCoins.push(coin);
+		game.addChild(coin);
+	}
+}
 // Touch controls
 game.down = function (x, y, obj) {
 	dragNode = hero;
 	hero.x = x;
@@ -404,8 +479,10 @@
 					LK.setScore(LK.getScore() + enemy.points);
 					scoreTxt.setText('Score: ' + LK.getScore());
 					// Create smoke effect when enemy is destroyed
 					createSmokeEffect(enemy.x, enemy.y, enemy.type === 'boss' ? 3 : 1);
+					// Drop gold coins when enemy dies
+					dropGoldCoins(enemy.x, enemy.y, enemy.type);
 					enemy.destroy();
 					enemies.splice(j, 1);
 				} else {
 					// Enemy damaged but not destroyed - flash red and create small smoke
@@ -429,8 +506,31 @@
 			enemy.destroy();
 			enemies.splice(k, 1);
 		}
 	}
+	// Update and check gold coin collection
+	for (var c = goldCoins.length - 1; c >= 0; c--) {
+		var coin = goldCoins[c];
+		// Check if hero collects coin
+		if (coin.intersects(hero)) {
+			LK.setScore(LK.getScore() + coin.value);
+			scoreTxt.setText('Score: ' + LK.getScore());
+			// Add collection effect
+			tween(coin, {
+				scaleX: 2,
+				scaleY: 2,
+				alpha: 0
+			}, {
+				duration: 200,
+				easing: tween.easeOut,
+				onFinish: function onFinish() {
+					coin.destroy();
+				}
+			});
+			goldCoins.splice(c, 1);
+			LK.getSound('4581').play();
+		}
+	}
 	// Check if wave is complete
 	if (enemies.length === 0 && enemiesSpawned >= enemiesPerWave) {
 		waveNumber++;
 		waveTxt.setText('Wave: ' + waveNumber);