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

/**** 
* Classes
****/ 
var Bomb = Container.expand(function () {
	var self = Container.call(this);
	var bombGraphics = self.attachAsset('bullet', {
		anchorX: 0.5,
		anchorY: 0.5,
		tint: 0x444444,
		scaleX: 2,
		scaleY: 2
	});
	self.speed = 4;
	self.damage = 2;
	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.damage = 1;
	self.update = function () {
		self.y += self.speed;
	};
	return self;
});
var Cloud = Container.expand(function () {
	var self = Container.call(this);
	var cloudType = ['cloud1', 'cloud2', 'cloud3'][Math.floor(Math.random() * 3)];
	var cloudGraphics = self.attachAsset(cloudType, {
		anchorX: 0.5,
		anchorY: 0.5
	});
	cloudGraphics.alpha = 0.7;
	self.speed = Math.random() * 2 + 1;
	self.update = function () {
		self.y += self.speed;
	};
	return self;
});
// Game variables
var Enemy1 = Container.expand(function () {
	var self = Container.call(this);
	var enemyGraphics = self.attachAsset('enemy1', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 3;
	self.health = 1;
	self.scoreValue = 10;
	self.enemyType = 1;
	self.nextBombTime = 0;
	self.bombInterval = Math.random() * 2000 + 4000; // Random between 4-6 seconds (4000-6000ms)
	self.update = function () {
		self.y += self.speed;
		// Drop bombs every 4-6 seconds
		if (LK.ticks * 16.67 >= self.nextBombTime) {
			// Convert ticks to milliseconds (60fps = 16.67ms per tick)
			var bomb = new Bomb();
			bomb.x = self.x;
			bomb.y = self.y + 40;
			bombs.push(bomb);
			game.addChild(bomb);
			// Set next bomb time (4-6 seconds from now)
			self.bombInterval = Math.random() * 2000 + 4000;
			self.nextBombTime = LK.ticks * 16.67 + self.bombInterval;
		}
	};
	return self;
});
var Enemy2 = Container.expand(function () {
	var self = Container.call(this);
	var enemyGraphics = self.attachAsset('enemy2', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 4;
	self.health = 2;
	self.scoreValue = 20;
	self.enemyType = 2;
	self.update = function () {
		self.y += self.speed;
		// Zigzag movement
		self.x += Math.sin(LK.ticks * 0.1) * 2;
		// Shoot bullets every 60 ticks
		if (LK.ticks % 60 === 0) {
			var enemyBullet = new EnemyBullet();
			enemyBullet.x = self.x;
			enemyBullet.y = self.y + 40;
			enemyBullets.push(enemyBullet);
			game.addChild(enemyBullet);
		}
	};
	return self;
});
var Enemy3 = Container.expand(function () {
	var self = Container.call(this);
	var enemyGraphics = self.attachAsset('enemy3', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 5;
	self.health = 1;
	self.scoreValue = 15;
	self.enemyType = 3;
	self.hasSpottedPlayer = false; // Track if this Enemy3 has already spotted the player
	self.update = function () {
		self.y += self.speed;
		// Scout behavior - scan for player when in range
		var distanceToPlayer = Math.abs(self.x - player.x);
		var verticalDistance = Math.abs(self.y - player.y);
		// If Enemy3 is close enough to "spot" the player (within scanning range)
		if (distanceToPlayer < 300 && verticalDistance < 400 && !self.hasSpottedPlayer) {
			self.hasSpottedPlayer = true;
			// Show warning text
			warningTxt.alpha = 1;
			tween(warningTxt, {
				alpha: 0
			}, {
				duration: 3000
			}); // Fade out warning over 3 seconds
			// Trigger Enemy2 spawn after warning
			LK.setTimeout(function () {
				var enemy2 = new Enemy2();
				enemy2.x = Math.random() * 1900 + 100;
				enemy2.y = -50;
				enemy2.speed += Math.floor(currentWave / 3);
				enemies.push(enemy2);
				game.addChild(enemy2);
			}, 1000); // Spawn Enemy2 1 second after warning appears
		}
	};
	return self;
});
var Enemy4 = Container.expand(function () {
	var self = Container.call(this);
	var enemyGraphics = self.attachAsset('enemy1', {
		anchorX: 0.5,
		anchorY: 0.5,
		tint: 0x800080
	});
	self.speed = 2;
	self.health = 3;
	self.scoreValue = 30;
	self.enemyType = 4;
	self.direction = 1; // 1 for right, -1 for left
	self.verticalMoveTimer = 0;
	self.update = function () {
		// Horizontal movement back and forth
		self.x += self.direction * 3;
		// Change direction when reaching screen edges
		if (self.x <= 100 || self.x >= 1948) {
			self.direction *= -1;
			self.y += 50; // Move down when changing direction
		}
		// Slow vertical movement
		self.verticalMoveTimer++;
		if (self.verticalMoveTimer > 30) {
			self.y += self.speed;
			self.verticalMoveTimer = 0;
		}
		// Shoot triple bullets every 90 ticks
		if (LK.ticks % 90 === 0) {
			// Center bullet
			var centerBullet = new EnemyBullet();
			centerBullet.x = self.x;
			centerBullet.y = self.y + 40;
			enemyBullets.push(centerBullet);
			game.addChild(centerBullet);
			// Left bullet
			var leftBullet = new EnemyBullet();
			leftBullet.x = self.x - 30;
			leftBullet.y = self.y + 40;
			enemyBullets.push(leftBullet);
			game.addChild(leftBullet);
			// Right bullet
			var rightBullet = new EnemyBullet();
			rightBullet.x = self.x + 30;
			rightBullet.y = self.y + 40;
			enemyBullets.push(rightBullet);
			game.addChild(rightBullet);
		}
	};
	return self;
});
var EnemyBullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletGraphics = self.attachAsset('bullet', {
		anchorX: 0.5,
		anchorY: 0.5,
		tint: 0xff0000
	});
	self.speed = 8;
	self.damage = 1;
	self.update = function () {
		self.y += self.speed;
	};
	return self;
});
var Player = Container.expand(function () {
	var self = Container.call(this);
	var playerGraphics = self.attachAsset('player', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 8;
	self.health = 3;
	self.update = function () {
		// Keep player in bounds - only allow movement along bottom edge
		if (self.x < 40) self.x = 40;
		if (self.x > 2008) self.x = 2008;
		// Force player to stay at bottom of screen
		self.y = 2400;
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x87CEEB
});

/**** 
* Game Code
****/ 
// Game variables
var player;
var enemies = [];
var bullets = [];
var enemyBullets = [];
var bombs = [];
var clouds = [];
var score = 0;
var totalKills = 0;
var enemySpawnTimer = 0;
var cloudSpawnTimer = 0;
var currentWave = 1;
var enemiesSpawnedThisWave = 0;
var enemiesKilledThisWave = 0;
var enemiesPerWave = 5;
var waveInProgress = false;
var waveStartDelay = 0;
var maxEnemySpawnRate = 60;
// Initialize background clouds
for (var i = 0; i < 8; i++) {
	var cloud = new Cloud();
	cloud.x = Math.random() * 2048;
	cloud.y = Math.random() * 2732;
	clouds.push(cloud);
	game.addChild(cloud);
}
// Create player
player = game.addChild(new Player());
player.x = 1024;
player.y = 2400;
// Score display
var scoreTxt = new Text2('Score: ' + score, {
	size: 60,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0, 0);
LK.gui.topLeft.addChild(scoreTxt);
scoreTxt.x = 120;
scoreTxt.y = 20;
// Wave display
var waveTxt = new Text2('Wave: ' + currentWave, {
	size: 60,
	fill: 0xFFFF00
});
waveTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(waveTxt);
waveTxt.y = 20;
// Health display
var healthTxt = new Text2('Health: ' + player.health, {
	size: 60,
	fill: 0xFF0000
});
healthTxt.anchor.set(1, 0);
LK.gui.topRight.addChild(healthTxt);
healthTxt.x = -20;
healthTxt.y = 20;
// Kills counter display
var killsTxt = new Text2('Kills: ' + totalKills, {
	size: 60,
	fill: 0x00FF00
});
killsTxt.anchor.set(1, 0);
LK.gui.topRight.addChild(killsTxt);
killsTxt.x = -20;
killsTxt.y = 90;
// Warning text (initially hidden)
var warningTxt = new Text2('WARNING', {
	size: 120,
	fill: 0xFF0000
});
warningTxt.anchor.set(0.5, 0.5);
LK.gui.center.addChild(warningTxt);
warningTxt.alpha = 0; // Initially hidden
// Touch input handling for player movement
game.down = function (x, y, obj) {
	// Move player to touch x position, keeping y at bottom
	player.x = x;
};
game.move = function (x, y, obj) {
	// Move player to touch x position while dragging
	player.x = x;
};
// Main game loop
game.update = function () {
	// Spawn new clouds
	cloudSpawnTimer++;
	if (cloudSpawnTimer > 120) {
		var cloud = new Cloud();
		cloud.x = Math.random() * 2048;
		cloud.y = -100;
		clouds.push(cloud);
		game.addChild(cloud);
		cloudSpawnTimer = 0;
	}
	// Update clouds
	for (var i = clouds.length - 1; i >= 0; i--) {
		var cloud = clouds[i];
		if (cloud.y > 2800) {
			cloud.destroy();
			clouds.splice(i, 1);
		}
	}
	// Continuous shooting every 10 ticks - bullets spawn from player position
	if (LK.ticks % 10 === 0) {
		var bullet = new Bullet();
		bullet.x = player.x; // Spawn bullet at player's exact x position
		bullet.y = player.y - 60; // Spawn bullet slightly above player
		bullets.push(bullet);
		game.addChild(bullet);
		LK.getSound('shoot').play();
	}
	// Wave system - spawn enemies based on current wave
	if (!waveInProgress && waveStartDelay <= 0) {
		// Start new wave
		waveInProgress = true;
		enemiesSpawnedThisWave = 0;
		enemiesKilledThisWave = 0;
		enemiesPerWave = Math.min(5 + currentWave * 2, 20); // Increase enemies per wave, cap at 20
		maxEnemySpawnRate = Math.max(30, 60 - currentWave * 3); // Faster spawning each wave, minimum 30 ticks
		waveTxt.setText('Wave: ' + currentWave);
	}
	if (waveInProgress && enemiesSpawnedThisWave < enemiesPerWave) {
		enemySpawnTimer++;
		if (enemySpawnTimer > maxEnemySpawnRate) {
			// Randomly choose enemy type
			var enemyType = Math.floor(Math.random() * 4) + 1;
			var enemy;
			if (enemyType === 1) {
				enemy = new Enemy1();
			} else if (enemyType === 2) {
				enemy = new Enemy2();
			} else if (enemyType === 3) {
				enemy = new Enemy3();
			} else {
				enemy = new Enemy4();
			}
			enemy.x = Math.random() * 1900 + 100;
			enemy.y = -50;
			// Make enemies faster in later waves
			enemy.speed += Math.floor(currentWave / 3);
			enemies.push(enemy);
			game.addChild(enemy);
			enemySpawnTimer = 0;
			enemiesSpawnedThisWave++;
		}
	}
	// Update bullets
	for (var i = bullets.length - 1; i >= 0; i--) {
		var bullet = bullets[i];
		// Remove bullets that are off screen
		if (bullet.y < -50) {
			bullet.destroy();
			bullets.splice(i, 1);
			continue;
		}
		// Check bullet-enemy collisions
		for (var j = enemies.length - 1; j >= 0; j--) {
			var enemy = enemies[j];
			if (bullet.intersects(enemy)) {
				// Damage enemy
				enemy.health -= bullet.damage;
				bullet.destroy();
				bullets.splice(i, 1);
				// Check if enemy is destroyed
				if (enemy.health <= 0) {
					LK.getSound('explosion').play();
					// Create explosion visual at enemy position
					var explosion = LK.getAsset('Bomm', {
						anchorX: 0.5,
						anchorY: 0.5
					});
					explosion.x = enemy.x;
					explosion.y = enemy.y;
					game.addChild(explosion);
					// Animate explosion - scale up and fade out
					tween(explosion, {
						scaleX: 3,
						scaleY: 3,
						alpha: 0
					}, {
						duration: 800,
						easing: tween.easeOut,
						onFinish: function onFinish() {
							explosion.destroy();
						}
					});
					enemy.destroy();
					enemies.splice(j, 1);
					// Update score based on enemy type and wave
					score += enemy.scoreValue * currentWave;
					LK.setScore(score);
					scoreTxt.setText('Score: ' + score);
					// Update kills counter
					totalKills++;
					killsTxt.setText('Kills: ' + totalKills);
					enemiesKilledThisWave++;
					// Check if wave is complete
					if (waveInProgress && enemiesKilledThisWave >= enemiesPerWave) {
						waveInProgress = false;
						currentWave++;
						waveStartDelay = 120; // 2 second delay between waves
						LK.effects.flashScreen(0x00ff00, 500); // Green flash for wave complete
					}
				} else {
					// Enemy damaged but not destroyed - flash red
					LK.effects.flashObject(enemy, 0xff0000, 200);
				}
				break;
			}
		}
	}
	// Update enemies
	for (var i = enemies.length - 1; i >= 0; i--) {
		var enemy = enemies[i];
		// Remove enemies that are off screen
		if (enemy.y > 2800) {
			enemy.destroy();
			enemies.splice(i, 1);
			continue;
		}
		// Check enemy-player collision
		if (enemy.intersects(player)) {
			player.health--;
			healthTxt.setText('Health: ' + player.health);
			if (player.health <= 0) {
				LK.showGameOver();
			} else {
				LK.effects.flashObject(player, 0xff0000, 500);
			}
			enemy.destroy();
			enemies.splice(i, 1);
		}
	}
	// Update enemy bullets
	for (var i = enemyBullets.length - 1; i >= 0; i--) {
		var enemyBullet = enemyBullets[i];
		// Remove bullets that are off screen
		if (enemyBullet.y > 2800) {
			enemyBullet.destroy();
			enemyBullets.splice(i, 1);
			continue;
		}
		// Check enemy bullet-player collision
		if (enemyBullet.intersects(player)) {
			player.health--;
			healthTxt.setText('Health: ' + player.health);
			enemyBullet.destroy();
			enemyBullets.splice(i, 1);
			if (player.health <= 0) {
				LK.showGameOver();
			} else {
				LK.effects.flashObject(player, 0xff0000, 500);
			}
		}
	}
	// Update bombs
	for (var i = bombs.length - 1; i >= 0; i--) {
		var bomb = bombs[i];
		// Remove bombs that are off screen
		if (bomb.y > 2800) {
			bomb.destroy();
			bombs.splice(i, 1);
			continue;
		}
		// Check bomb-player collision
		if (bomb.intersects(player)) {
			player.health -= bomb.damage;
			healthTxt.setText('Health: ' + player.health);
			bomb.destroy();
			bombs.splice(i, 1);
			if (player.health <= 0) {
				LK.showGameOver();
			} else {
				LK.effects.flashObject(player, 0xff0000, 500);
			}
		}
	}
	// Handle wave start delay
	if (waveStartDelay > 0) {
		waveStartDelay--;
	}
	// Check if player failed to eliminate all enemies (game over condition)
	// If enemies reach the bottom of the screen without being destroyed, it's game over
	for (var i = enemies.length - 1; i >= 0; i--) {
		var enemy = enemies[i];
		if (enemy.y > 2600) {
			// Enemy reached near bottom of screen
			LK.showGameOver();
			break;
		}
	}
};

===================================================================
--- original.js
+++ change.js