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

/**** 
* Classes
****/ 
// Bullet class
var Bullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletAsset = self.attachAsset('bullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.radius = bulletAsset.width / 2;
	self.speed = -18;
	self.update = function () {
		self.y += self.speed;
	};
	return self;
});
// Enemy class
var Enemy = Container.expand(function () {
	var self = Container.call(this);
	var enemyAsset = self.attachAsset('enemy', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.radius = enemyAsset.width / 2;
	self.speed = 3 + Math.random() * 2; // Speed increases with waves
	self.update = function () {
		self.y += self.speed;
	};
	return self;
});
// Hero class
var Hero = Container.expand(function () {
	var self = Container.call(this);
	var heroAsset = self.attachAsset('hero', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.radius = heroAsset.width / 2;
	self.weaponLevel = 1; // 1: single, 2: double, 3: triple, etc.
	// For touch drag
	self.down = function (x, y, obj) {};
	self.up = function (x, y, obj) {};
	self.move = function (x, y, obj) {};
	return self;
});
// Obstacle class
var Obstacle = Container.expand(function () {
	var self = Container.call(this);
	var obsAsset = self.attachAsset('obstacle', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.radius = obsAsset.width / 2;
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x181818
});

/**** 
* Game Code
****/ 
// --- Game Variables ---
// --- Asset Initialization ---
var hero;
var enemies = [];
var bullets = [];
var obstacles = [];
var dragNode = null;
var lastScore = 0;
var kills = 0;
var wave = 1;
var spawnTimer = 0;
var weaponLevel = 1;
var scoreTxt;
// --- Super Power State ---
var superPowerAvailable = 0; // Number of super powers available
var superPowerActive = false;
var superPowerTimer = 0;
// --- UI ---
scoreTxt = new Text2('0', {
	size: 120,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
// --- Place Obstacles ---
function placeObstacles() {
	// Clear old
	for (var i = 0; i < obstacles.length; i++) {
		obstacles[i].destroy();
	}
	obstacles = [];
	// Place 3 obstacles in the arena, not blocking the hero spawn
	var obsY = [900, 1500, 2100];
	for (var i = 0; i < 3; i++) {
		var obs = new Obstacle();
		obs.x = 2048 / 2 + (i - 1) * 500;
		obs.y = obsY[i];
		obstacles.push(obs);
		game.addChild(obs);
	}
}
// --- Spawn Hero ---
function spawnHero() {
	hero = new Hero();
	hero.x = 2048 / 2;
	hero.y = 2732 - 300;
	game.addChild(hero);
	weaponLevel = 1;
	hero.weaponLevel = 1;
}
// --- Spawn Enemy ---
function spawnEnemy() {
	var enemy = new Enemy();
	enemy.x = 300 + Math.random() * (2048 - 600);
	enemy.y = -120;
	enemies.push(enemy);
	game.addChild(enemy);
}
// --- Fire Bullets ---
function fireBullets() {
	var bulletCount = weaponLevel;
	var spread = 60; // px between bullets
	var baseX = hero.x - (bulletCount - 1) * spread / 2;
	for (var i = 0; i < bulletCount; i++) {
		var bullet = new Bullet();
		bullet.x = baseX + i * spread;
		bullet.y = hero.y - hero.radius - 20;
		bullets.push(bullet);
		game.addChild(bullet);
	}
}
// --- Touch Controls ---
function handleMove(x, y, obj) {
	if (dragNode) {
		// Clamp hero inside arena
		var minX = hero.radius + 20;
		var maxX = 2048 - hero.radius - 20;
		var minY = hero.radius + 200;
		var maxY = 2732 - hero.radius - 20;
		dragNode.x = Math.max(minX, Math.min(maxX, x));
		dragNode.y = Math.max(minY, Math.min(maxY, y));
	}
}
game.move = handleMove;
game.down = function (x, y, obj) {
	// Only drag if touch is on hero
	var dx = x - hero.x;
	var dy = y - hero.y;
	if (dx * dx + dy * dy < hero.radius * hero.radius * 1.2) {
		// --- Super Power: Double tap to activate ---
		if (!game._lastTapTime) game._lastTapTime = 0;
		var now = Date.now();
		if (now - game._lastTapTime < 350 && superPowerAvailable > 0 && !superPowerActive) {
			// Activate super power: clear all enemies
			superPowerActive = true;
			superPowerAvailable--;
			superPowerTimer = 30; // 0.5 seconds of effect (optional visual)
			// Destroy all enemies instantly
			for (var i = enemies.length - 1; i >= 0; i--) {
				enemies[i].destroy();
				enemies.splice(i, 1);
			}
			LK.effects.flashScreen(0x3399ff, 600);
		}
		game._lastTapTime = now;
		dragNode = hero;
		handleMove(x, y, obj);
	}
};
game.up = function (x, y, obj) {
	dragNode = null;
};
// --- Game Update ---
game.update = function () {
	// --- Bullets ---
	for (var i = bullets.length - 1; i >= 0; i--) {
		var b = bullets[i];
		b.update();
		// Remove offscreen
		if (b.y < -50) {
			b.destroy();
			bullets.splice(i, 1);
			continue;
		}
		// Collide with obstacles
		var hitObs = false;
		for (var j = 0; j < obstacles.length; j++) {
			if (b.intersects(obstacles[j])) {
				b.destroy();
				bullets.splice(i, 1);
				hitObs = true;
				break;
			}
		}
		if (hitObs) continue;
		// Collide with enemies
		for (var j = enemies.length - 1; j >= 0; j--) {
			if (b.intersects(enemies[j])) {
				// Destroy both
				b.destroy();
				bullets.splice(i, 1);
				enemies[j].destroy();
				enemies.splice(j, 1);
				kills++;
				LK.setScore(LK.getScore() + 1);
				scoreTxt.setText(LK.getScore());
				// Weapon upgrade
				if (kills % 10 === 0) {
					weaponLevel++;
					hero.weaponLevel = weaponLevel;
					LK.effects.flashObject(hero, 0x00ff00, 600);
				}
				// Super Power gain every 20 kills
				if (kills % 20 === 0) {
					superPowerAvailable++;
					// Optional: flash hero blue to indicate super power gained
					LK.effects.flashObject(hero, 0x3399ff, 800);
				}
				break;
			}
		}
	}
	// --- Enemies ---
	for (var i = enemies.length - 1; i >= 0; i--) {
		var e = enemies[i];
		e.update();
		// Collide with obstacles
		var hitObs = false;
		for (var j = 0; j < obstacles.length; j++) {
			if (e.intersects(obstacles[j])) {
				// Bounce down a bit and change x direction
				e.y -= 30;
				e.x += (Math.random() - 0.5) * 200;
				hitObs = true;
				break;
			}
		}
		if (hitObs) continue;
		// Collide with hero
		if (e.intersects(hero)) {
			LK.effects.flashScreen(0xff0000, 1000);
			LK.showGameOver();
			return;
		}
		// Remove offscreen
		if (e.y > 2732 + 100) {
			e.destroy();
			enemies.splice(i, 1);
		}
	}
	// --- Enemy Spawning ---
	spawnTimer++;
	var spawnInterval = Math.max(30, 90 - wave * 5); // Faster with waves
	if (spawnTimer >= spawnInterval) {
		spawnEnemy();
		spawnTimer = 0;
	}
	// Increase wave every 15 kills
	wave = 1 + Math.floor(kills / 15);
	// --- Fire Bullets (auto fire) ---
	if (LK.ticks % 18 === 0) {
		fireBullets();
	}
	;
	// --- Super Power Timer ---
	if (superPowerActive) {
		superPowerTimer--;
		if (superPowerTimer <= 0) {
			superPowerActive = false;
		}
	}
};
// --- Game Start ---
placeObstacles();
spawnHero();
LK.setScore(0);
scoreTxt.setText(0);
kills = 0;
wave = 1;
weaponLevel = 1;
enemies = [];
bullets = [];
spawnTimer = 0;
superPowerAvailable = 0;
superPowerActive = false;
superPowerTimer = 0;

===================================================================
--- original.js
+++ change.js
@@ -82,8 +82,12 @@
 var wave = 1;
 var spawnTimer = 0;
 var weaponLevel = 1;
 var scoreTxt;
+// --- Super Power State ---
+var superPowerAvailable = 0; // Number of super powers available
+var superPowerActive = false;
+var superPowerTimer = 0;
 // --- UI ---
 scoreTxt = new Text2('0', {
 	size: 120,
 	fill: 0xFFFFFF
@@ -154,8 +158,24 @@
 	// Only drag if touch is on hero
 	var dx = x - hero.x;
 	var dy = y - hero.y;
 	if (dx * dx + dy * dy < hero.radius * hero.radius * 1.2) {
+		// --- Super Power: Double tap to activate ---
+		if (!game._lastTapTime) game._lastTapTime = 0;
+		var now = Date.now();
+		if (now - game._lastTapTime < 350 && superPowerAvailable > 0 && !superPowerActive) {
+			// Activate super power: clear all enemies
+			superPowerActive = true;
+			superPowerAvailable--;
+			superPowerTimer = 30; // 0.5 seconds of effect (optional visual)
+			// Destroy all enemies instantly
+			for (var i = enemies.length - 1; i >= 0; i--) {
+				enemies[i].destroy();
+				enemies.splice(i, 1);
+			}
+			LK.effects.flashScreen(0x3399ff, 600);
+		}
+		game._lastTapTime = now;
 		dragNode = hero;
 		handleMove(x, y, obj);
 	}
 };
@@ -201,8 +221,14 @@
 					weaponLevel++;
 					hero.weaponLevel = weaponLevel;
 					LK.effects.flashObject(hero, 0x00ff00, 600);
 				}
+				// Super Power gain every 20 kills
+				if (kills % 20 === 0) {
+					superPowerAvailable++;
+					// Optional: flash hero blue to indicate super power gained
+					LK.effects.flashObject(hero, 0x3399ff, 800);
+				}
 				break;
 			}
 		}
 	}
@@ -246,8 +272,16 @@
 	// --- Fire Bullets (auto fire) ---
 	if (LK.ticks % 18 === 0) {
 		fireBullets();
 	}
+	;
+	// --- Super Power Timer ---
+	if (superPowerActive) {
+		superPowerTimer--;
+		if (superPowerTimer <= 0) {
+			superPowerActive = false;
+		}
+	}
 };
 // --- Game Start ---
 placeObstacles();
 spawnHero();
@@ -257,5 +291,8 @@
 wave = 1;
 weaponLevel = 1;
 enemies = [];
 bullets = [];
-spawnTimer = 0;
\ No newline at end of file
+spawnTimer = 0;
+superPowerAvailable = 0;
+superPowerActive = false;
+superPowerTimer = 0;
\ No newline at end of file