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

/**** 
* Classes
****/ 
var Enemy = Container.expand(function () {
	var self = Container.call(this);
	// Enemy visual
	var cube = self.attachAsset('player', {
		anchorX: 0.5,
		anchorY: 0.5,
		tint: 0xff0000
	});
	self.width = cube.width;
	self.height = cube.height;
	self.speed = 7;
	self.shootTimer = 0;
	self.shootInterval = 120; // Shoot every 120 frames (2 seconds)
	self.update = function () {
		self.x -= self.speed;
		self.shootTimer++;
		if (self.shootTimer >= self.shootInterval) {
			self.shoot();
			self.shootTimer = 0;
		}
		// Remove if off screen
		if (self.x < -self.width) {
			self.destroy();
			return true; // Signal to remove from the array
		}
		return false;
	};
	self.shoot = function () {
		if (gameRunning && !player.isDead) {
			createEnemyCube(self.x, self.y);
		}
	};
	return self;
});
var EnemyCube = Container.expand(function () {
	var self = Container.call(this);
	// Cube visual
	var cube = self.attachAsset('player', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 0.6,
		scaleY: 0.6,
		tint: 0xff6666
	});
	self.width = cube.width * 0.6;
	self.height = cube.height * 0.6;
	// Calculate direction towards player's position
	self.velocity = {
		x: 0,
		y: 0
	};
	self.update = function () {
		// Move the cube
		self.x += self.velocity.x;
		self.y += self.velocity.y;
		// Rotate the cube for visual effect
		cube.rotation += 0.05;
		// Remove if off screen
		if (self.y > 2732 || self.x < -self.width || self.x > 2048 + self.width) {
			self.destroy();
			return true;
		}
		return false;
	};
	return self;
});
var Obstacle = Container.expand(function (type) {
	var self = Container.call(this);
	self.type = type || 'spike';
	self.speed = 10;
	if (self.type === 'spike') {
		var spikeGraphic = self.attachAsset('spike', {
			anchorX: 0.5,
			anchorY: 1.0
		});
		self.width = spikeGraphic.width;
		self.height = spikeGraphic.height;
	} else if (self.type === 'laser') {
		var laserGraphic = self.attachAsset('laser', {
			anchorX: 0.0,
			anchorY: 0.5,
			alpha: 0.7
		});
		self.width = laserGraphic.width;
		self.height = laserGraphic.height;
		// Laser activation
		self.active = false;
		self.warningTime = 30;
		self.activeTime = 60;
		self.timer = self.warningTime;
		// Warning effect
		self.flash = function () {
			if (self.timer % 5 === 0) {
				laserGraphic.alpha = laserGraphic.alpha === 0.3 ? 0.7 : 0.3;
			}
		};
	} else if (self.type === 'searchlight') {
		var searchlightGraphic = self.attachAsset('searchlight', {
			anchorX: 0.5,
			anchorY: 0.0,
			alpha: 0.5
		});
		self.width = searchlightGraphic.width;
		self.height = searchlightGraphic.height;
	}
	self.update = function () {
		self.x -= self.speed;
		// Laser special behavior
		if (self.type === 'laser') {
			self.timer--;
			if (self.timer > 0 && !self.active) {
				// Warning phase
				self.flash();
			} else if (!self.active) {
				// Activate
				self.active = true;
				laserGraphic.alpha = 1;
				self.timer = self.activeTime;
			} else if (self.timer <= 0) {
				// Deactivate
				self.destroy();
				return true;
			}
		}
		// Remove if off screen
		if (self.x < -self.width) {
			self.destroy();
			return true; // Signal to remove from the array
		}
		return false;
	};
	return self;
});
var Platform = Container.expand(function () {
	var self = Container.call(this);
	var platformGraphic = self.attachAsset('platform', {
		anchorX: 0.5,
		anchorY: 0.0
	});
	self.width = platformGraphic.width;
	self.height = platformGraphic.height;
	self.speed = 10;
	self.update = function () {
		self.x -= self.speed;
		// Remove if off screen
		if (self.x < -self.width) {
			self.destroy();
			return true; // Signal to remove from the array
		}
		return false;
	};
	return self;
});
var Player = Container.expand(function () {
	var self = Container.call(this);
	// Player states
	self.isJumping = false;
	self.isSliding = false;
	self.isHiding = false;
	self.isDead = false;
	self.canDoubleJump = false;
	self.hasDoubleJumped = false;
	self.lastJumpTime = 0;
	self.velocity = {
		x: 0,
		y: 0
	};
	self.gravity = 1.2;
	self.jumpForce = -25;
	self.groundY = 2200;
	// Visual components
	var cube = self.attachAsset('player', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Set initial rotation and rotation speed
	self.rotationSpeed = 0.05;
	self.currentRotation = 0;
	// Particle system for the player's trail
	self.particles = [];
	// Player controls
	self.jump = function () {
		var currentTime = LK.ticks;
		if (!self.isDead) {
			if (!self.isJumping) {
				// First jump
				self.velocity.y = self.jumpForce;
				self.isJumping = true;
				self.canDoubleJump = true;
				self.hasDoubleJumped = false;
				self.lastJumpTime = currentTime;
				// Increase rotation speed temporarily when jumping
				tween(self, {
					rotationSpeed: 0.15
				}, {
					duration: 300,
					easing: tween.easeOut,
					onFinish: function onFinish() {
						tween(self, {
							rotationSpeed: 0.05
						}, {
							duration: 500,
							easing: tween.easeIn
						});
					}
				});
				LK.getSound('jump').play();
			} else if (self.canDoubleJump && !self.hasDoubleJumped && currentTime - self.lastJumpTime < 30) {
				// Double jump (only if tapped quickly after first jump)
				self.velocity.y = self.jumpForce * 1.2; // Higher second jump
				self.hasDoubleJumped = true;
				self.canDoubleJump = false;
				// Extra rotation boost for double jump
				tween(self, {
					rotationSpeed: 0.25
				}, {
					duration: 200,
					easing: tween.easeOut,
					onFinish: function onFinish() {
						tween(self, {
							rotationSpeed: 0.05
						}, {
							duration: 400,
							easing: tween.easeIn
						});
					}
				});
				LK.getSound('jump').play();
			}
		}
	};
	self.slide = function () {
		if (!self.isSliding && !self.isJumping && !self.isDead) {
			self.isSliding = true;
			cube.scaleY = 0.5;
			cube.y = 25;
			// Increase rotation speed during slide with higher value for faster slide
			tween(self, {
				rotationSpeed: 0.3
			}, {
				duration: 150,
				easing: tween.easeOut
			});
			LK.getSound('slide').play();
			// Cancel slide after a shorter duration (800ms → 500ms) for faster slide
			LK.setTimeout(function () {
				if (self.isSliding) {
					self.isSliding = false;
					cube.scaleY = 1;
					cube.y = 0;
					// Return to normal rotation speed
					tween(self, {
						rotationSpeed: 0.05
					}, {
						duration: 200,
						easing: tween.easeIn
					});
				}
			}, 500);
		}
	};
	self.hide = function (shadow) {
		if (!self.isDead && shadow) {
			self.isHiding = true;
			cube.alpha = 0.3;
			LK.getSound('hide').play();
		}
	};
	self.unhide = function () {
		self.isHiding = false;
		cube.alpha = 1;
	};
	self.hit = function () {
		if (!self.isDead && invulnerableTime <= 0) {
			playerLives--;
			livesTxt.setText('Lives: ' + playerLives);
			// Set invulnerability time
			invulnerableTime = invulnerableDuration;
			// Flash player effect
			var flashCount = 6;
			var flashInterval = LK.setInterval(function () {
				cube.alpha = cube.alpha === 1 ? 0.3 : 1;
				flashCount--;
				if (flashCount <= 0) {
					LK.clearInterval(flashInterval);
					cube.alpha = 1;
				}
			}, 100);
			// Check if out of lives
			if (playerLives <= 0) {
				self.die();
			} else {
				// Just flash screen red briefly
				LK.effects.flashScreen(0xff0000, 200);
			}
		}
	};
	self.die = function () {
		if (!self.isDead) {
			self.isDead = true;
			// Stop rotation by tweening to zero
			tween(self, {
				rotationSpeed: 0
			}, {
				duration: 100
			});
			LK.getSound('death').play();
			LK.effects.flashScreen(0xff0000, 500);
			// Create death particles
			for (var i = 0; i < 20; i++) {
				var particle = LK.getAsset('particle', {
					anchorX: 0.5,
					anchorY: 0.5,
					x: self.x,
					y: self.y
				});
				// Random velocity for each particle
				var angle = Math.random() * Math.PI * 2;
				var speed = 5 + Math.random() * 10;
				particle.vx = Math.cos(angle) * speed;
				particle.vy = Math.sin(angle) * speed;
				game.addChild(particle);
				deathParticles.push(particle);
			}
			LK.setTimeout(function () {
				LK.showGameOver();
			}, 1000);
		}
	};
	// Physics update
	self.updatePhysics = function () {
		if (self.isDead) {
			return;
		}
		// Apply gravity
		self.velocity.y += self.gravity;
		// Update position
		self.y += self.velocity.y;
		// Check floor collision
		if (self.y >= self.groundY) {
			self.y = self.groundY;
			self.velocity.y = 0;
			self.isJumping = false;
			self.canDoubleJump = false;
			self.hasDoubleJumped = false;
		}
		// Update cube rotation when moving
		if (gameRunning && !self.isDead) {
			self.currentRotation += self.rotationSpeed;
			cube.rotation = self.currentRotation;
		}
		// Create trail particles
		if (gameRunning && LK.ticks % 5 === 0) {
			var particle = LK.getAsset('particle', {
				anchorX: 0.5,
				anchorY: 0.5,
				x: self.x - 30,
				y: self.y + (self.isSliding ? 25 : 0)
			});
			particle.alpha = 0.7;
			particle.life = 30;
			game.addChild(particle);
			self.particles.push(particle);
		}
		// Update particles
		for (var i = self.particles.length - 1; i >= 0; i--) {
			var p = self.particles[i];
			p.alpha -= 0.02;
			p.scaleX -= 0.02;
			p.scaleY -= 0.02;
			p.life--;
			if (p.life <= 0 || p.alpha <= 0) {
				p.destroy();
				self.particles.splice(i, 1);
			}
		}
	};
	return self;
});
var Shadow = Container.expand(function () {
	var self = Container.call(this);
	var shadowGraphic = self.attachAsset('shadow', {
		anchorX: 0.5,
		anchorY: 0.5,
		alpha: 0.5
	});
	self.width = shadowGraphic.width;
	self.height = shadowGraphic.height;
	self.speed = 10;
	self.update = function () {
		self.x -= self.speed;
		// Remove if off screen
		if (self.x < -self.width) {
			self.destroy();
			return true; // Signal to remove from the array
		}
		return false;
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x111111
});

/**** 
* Game Code
****/ 
// Game state
var gameRunning = false;
var speed = 10;
var score = 0;
var highScore = storage.highScore || 0;
var platformY = 2200;
var spawnDistance = 800;
var nextSpawnX = 2048 + 200;
var difficultyTimer = 0;
var difficultyInterval = 1000;
var playerLives = 3;
var invulnerableTime = 0;
var invulnerableDuration = 60; // 1 second of invulnerability after being hit
// Game elements
var player;
var platforms = [];
var obstacles = [];
var shadows = [];
var deathParticles = [];
var enemies = [];
var enemyCubes = [];
// UI elements
var scoreTxt;
var highScoreTxt;
var tapToStartTxt;
// Initialize the game
function initGame() {
	gameRunning = false;
	speed = 10;
	score = 0;
	platformY = 2200;
	spawnDistance = 800;
	nextSpawnX = 2048 + 200;
	difficultyTimer = 0;
	playerLives = 3;
	invulnerableTime = 0;
	// Clear existing elements
	while (platforms.length > 0) {
		platforms[0].destroy();
		platforms.shift();
	}
	while (obstacles.length > 0) {
		obstacles[0].destroy();
		obstacles.shift();
	}
	while (shadows.length > 0) {
		shadows[0].destroy();
		shadows.shift();
	}
	while (deathParticles.length > 0) {
		deathParticles[0].destroy();
		deathParticles.shift();
	}
	// Clear enemies and enemy cubes
	while (enemies.length > 0) {
		enemies[0].destroy();
		enemies.shift();
	}
	while (enemyCubes.length > 0) {
		enemyCubes[0].destroy();
		enemyCubes.shift();
	}
	// Create player
	player = new Player();
	player.x = 400;
	player.y = platformY;
	game.addChild(player);
	// Create initial platform
	createPlatform(0, platformY, 2048 + 500);
	// Create UI
	if (!scoreTxt) {
		scoreTxt = new Text2('Score: 0', {
			size: 60,
			fill: 0xFFFFFF
		});
		scoreTxt.anchor.set(0, 0);
		LK.gui.topRight.addChild(scoreTxt);
		scoreTxt.x = -250;
		scoreTxt.y = 50;
	}
	// Create lives counter
	livesTxt = new Text2('Lives: ' + playerLives, {
		size: 60,
		fill: 0xFFFFFF
	});
	livesTxt.anchor.set(0, 0);
	LK.gui.topRight.addChild(livesTxt);
	livesTxt.x = -250;
	livesTxt.y = 180;
	if (!highScoreTxt) {
		highScoreTxt = new Text2('High Score: ' + highScore, {
			size: 40,
			fill: 0xAAAAAA
		});
		highScoreTxt.anchor.set(0, 0);
		LK.gui.topRight.addChild(highScoreTxt);
		highScoreTxt.x = -250;
		highScoreTxt.y = 120;
	}
	// Create start instruction
	tapToStartTxt = new Text2('Tap to Start\nTap to Jump\nHold to Slide\nHide in Shadows', {
		size: 70,
		fill: 0xFFFFFF
	});
	tapToStartTxt.anchor.set(0.5, 0.5);
	LK.gui.center.addChild(tapToStartTxt);
	// Start the background music
	LK.playMusic('gameBgm', {
		fade: {
			start: 0,
			end: 0.4,
			duration: 1000
		}
	});
}
// Create a platform at the specified position
function createPlatform(x, y, width) {
	var platform = new Platform();
	platform.x = x;
	platform.y = y;
	if (width) {
		platform.width = width;
		platform.getChildAt(0).width = width;
	}
	game.addChild(platform);
	platforms.push(platform);
	return platform;
}
// Create an obstacle
function createObstacle(type, x, y) {
	var obstacle = new Obstacle(type);
	obstacle.x = x;
	obstacle.y = y;
	if (type === 'laser') {
		obstacle.y = Math.random() * 1500 + 500;
	}
	game.addChild(obstacle);
	obstacles.push(obstacle);
	return obstacle;
}
// Create a shadow area
function createShadow(x, y) {
	var shadow = new Shadow();
	shadow.x = x;
	shadow.y = y;
	game.addChild(shadow);
	shadows.push(shadow);
	return shadow;
}
// Create an enemy
function createEnemy(x, y) {
	var enemy = new Enemy();
	enemy.x = x;
	enemy.y = y;
	game.addChild(enemy);
	enemies.push(enemy);
	return enemy;
}
// Create an enemy cube
function createEnemyCube(x, y) {
	var cube = new EnemyCube();
	cube.x = x;
	cube.y = y;
	// Calculate direction vector towards player
	var dx = player.x - x;
	var dy = player.y - y;
	var distance = Math.sqrt(dx * dx + dy * dy);
	// Normalize and set speed
	cube.velocity.x = dx / distance * 12;
	cube.velocity.y = dy / distance * 12;
	game.addChild(cube);
	enemyCubes.push(cube);
	return cube;
}
// Spawn game elements
function spawnElements() {
	if (nextSpawnX <= 2048 + 200) {
		// Decide what to spawn
		var rand = Math.random();
		// Always spawn a platform
		var platform = createPlatform(nextSpawnX, platformY);
		// Maybe spawn an obstacle
		if (rand < 0.7) {
			if (rand < 0.4) {
				// Spawn spike
				createObstacle('spike', nextSpawnX, platformY);
			} else if (rand < 0.6) {
				// Spawn searchlight
				createObstacle('searchlight', nextSpawnX, 0);
			} else {
				// Spawn laser
				createObstacle('laser', 0, 0);
			}
		}
		// Maybe spawn a shadow
		if (Math.random() < 0.3) {
			createShadow(nextSpawnX, platformY - 40);
		}
		// Maybe spawn an enemy at the top
		if (Math.random() < 0.2) {
			var enemyX = nextSpawnX + Math.random() * 300;
			var enemyY = 200 + Math.random() * 300;
			createEnemy(enemyX, enemyY);
		}
		nextSpawnX += spawnDistance;
	}
	nextSpawnX -= speed;
}
// Check for collisions
function checkCollisions() {
	if (player.isDead) {
		return;
	}
	// Check obstacle collisions
	for (var i = 0; i < obstacles.length; i++) {
		var obstacle = obstacles[i];
		if (obstacle.type === 'laser' && !obstacle.active) {
			continue; // Skip inactive lasers
		}
		if (player.intersects(obstacle)) {
			// If in a shadow and it's a searchlight, you're safe
			if (obstacle.type === 'searchlight' && player.isHiding) {
				continue;
			}
			player.die();
			break;
		}
	}
	// Check enemy cube collisions
	for (var i = 0; i < enemyCubes.length; i++) {
		if (player.intersects(enemyCubes[i]) && invulnerableTime <= 0) {
			player.hit();
			enemyCubes[i].destroy();
			enemyCubes.splice(i, 1);
			break;
		}
	}
	// Check shadow interactions
	var inShadow = false;
	for (var j = 0; j < shadows.length; j++) {
		if (player.intersects(shadows[j])) {
			inShadow = true;
			break;
		}
	}
	if (inShadow) {
		player.hide();
	} else {
		player.unhide();
	}
}
// Update score
function updateScore() {
	if (!gameRunning || player.isDead) {
		return;
	}
	score++;
	if (score > highScore) {
		highScore = score;
		storage.highScore = highScore;
		highScoreTxt.setText('High Score: ' + highScore);
	}
	if (score % 10 === 0) {
		scoreTxt.setText('Score: ' + score);
	}
}
// Increase difficulty over time
function updateDifficulty() {
	difficultyTimer++;
	if (difficultyTimer >= difficultyInterval) {
		difficultyTimer = 0;
		// Increase speed
		speed += 0.5;
		for (var i = 0; i < platforms.length; i++) {
			platforms[i].speed = speed;
		}
		for (var j = 0; j < obstacles.length; j++) {
			obstacles[j].speed = speed;
		}
		for (var k = 0; k < shadows.length; k++) {
			shadows[k].speed = speed;
		}
		for (var e = 0; e < enemies.length; e++) {
			enemies[e].speed = speed * 0.7; // Enemies move a bit slower than obstacles
		}
		// Decrease spawn distance
		spawnDistance = Math.max(400, spawnDistance - 10);
	}
}
// Main update function
game.update = function () {
	if (gameRunning) {
		// Update invulnerability timer
		if (invulnerableTime > 0) {
			invulnerableTime--;
		}
		// Update game elements
		player.updatePhysics();
		// Spawn new elements
		spawnElements();
		// Update existing elements
		for (var i = platforms.length - 1; i >= 0; i--) {
			if (platforms[i].update()) {
				platforms.splice(i, 1);
			}
		}
		for (var j = obstacles.length - 1; j >= 0; j--) {
			if (obstacles[j].update()) {
				obstacles.splice(j, 1);
			}
		}
		for (var k = shadows.length - 1; k >= 0; k--) {
			if (shadows[k].update()) {
				shadows.splice(k, 1);
			}
		}
		// Update enemies
		for (var m = enemies.length - 1; m >= 0; m--) {
			if (enemies[m].update()) {
				enemies.splice(m, 1);
			}
		}
		// Update enemy cubes
		for (var n = enemyCubes.length - 1; n >= 0; n--) {
			if (enemyCubes[n].update()) {
				enemyCubes.splice(n, 1);
			}
		}
		// Update death particles
		for (var l = deathParticles.length - 1; l >= 0; l--) {
			var p = deathParticles[l];
			p.x += p.vx;
			p.y += p.vy;
			p.vx *= 0.95;
			p.vy *= 0.95;
			p.vy += 0.5; // gravity
			p.alpha -= 0.02;
			if (p.alpha <= 0) {
				p.destroy();
				deathParticles.splice(l, 1);
			}
		}
		// Check for collisions
		checkCollisions();
		// Update score (every 10 ticks)
		if (LK.ticks % 10 === 0) {
			updateScore();
		}
		// Update difficulty
		updateDifficulty();
	}
};
// Event handlers
game.down = function (x, y, obj) {
	if (!gameRunning) {
		// Start the game
		gameRunning = true;
		tapToStartTxt.destroy();
		scoreTxt.setText('Score: 0');
	} else if (!player.isDead) {
		player.jump();
	}
};
// No longer need holdTimer and holdStarted variables with swipe detection
game.up = function (x, y, obj) {
	// Reset lastX and lastY on up event to make a new swipe detection possible
	if (obj) {
		obj.lastX = null;
		obj.lastY = null;
	}
};
game.move = function (x, y, obj) {
	if (gameRunning && !player.isDead) {
		// Track current position for swipe detection
		if (!obj.lastX) {
			obj.lastX = x;
			obj.lastY = y;
		} else {
			// Detect right swipe (minimum 100px movement to right)
			var deltaX = x - obj.lastX;
			if (deltaX > 100) {
				// Right swipe detected
				player.slide();
				// Reset tracking to prevent multiple triggers
				obj.lastX = x;
				obj.lastY = y;
			}
		}
	}
};
// Initialize the game
initGame();

===================================================================
--- original.js
+++ change.js
@@ -278,8 +278,33 @@
 	self.unhide = function () {
 		self.isHiding = false;
 		cube.alpha = 1;
 	};
+	self.hit = function () {
+		if (!self.isDead && invulnerableTime <= 0) {
+			playerLives--;
+			livesTxt.setText('Lives: ' + playerLives);
+			// Set invulnerability time
+			invulnerableTime = invulnerableDuration;
+			// Flash player effect
+			var flashCount = 6;
+			var flashInterval = LK.setInterval(function () {
+				cube.alpha = cube.alpha === 1 ? 0.3 : 1;
+				flashCount--;
+				if (flashCount <= 0) {
+					LK.clearInterval(flashInterval);
+					cube.alpha = 1;
+				}
+			}, 100);
+			// Check if out of lives
+			if (playerLives <= 0) {
+				self.die();
+			} else {
+				// Just flash screen red briefly
+				LK.effects.flashScreen(0xff0000, 200);
+			}
+		}
+	};
 	self.die = function () {
 		if (!self.isDead) {
 			self.isDead = true;
 			// Stop rotation by tweening to zero
@@ -402,8 +427,11 @@
 var spawnDistance = 800;
 var nextSpawnX = 2048 + 200;
 var difficultyTimer = 0;
 var difficultyInterval = 1000;
+var playerLives = 3;
+var invulnerableTime = 0;
+var invulnerableDuration = 60; // 1 second of invulnerability after being hit
 // Game elements
 var player;
 var platforms = [];
 var obstacles = [];
@@ -423,8 +451,10 @@
 	platformY = 2200;
 	spawnDistance = 800;
 	nextSpawnX = 2048 + 200;
 	difficultyTimer = 0;
+	playerLives = 3;
+	invulnerableTime = 0;
 	// Clear existing elements
 	while (platforms.length > 0) {
 		platforms[0].destroy();
 		platforms.shift();
@@ -467,8 +497,17 @@
 		LK.gui.topRight.addChild(scoreTxt);
 		scoreTxt.x = -250;
 		scoreTxt.y = 50;
 	}
+	// Create lives counter
+	livesTxt = new Text2('Lives: ' + playerLives, {
+		size: 60,
+		fill: 0xFFFFFF
+	});
+	livesTxt.anchor.set(0, 0);
+	LK.gui.topRight.addChild(livesTxt);
+	livesTxt.x = -250;
+	livesTxt.y = 180;
 	if (!highScoreTxt) {
 		highScoreTxt = new Text2('High Score: ' + highScore, {
 			size: 40,
 			fill: 0xAAAAAA
@@ -608,10 +647,12 @@
 		}
 	}
 	// Check enemy cube collisions
 	for (var i = 0; i < enemyCubes.length; i++) {
-		if (player.intersects(enemyCubes[i])) {
-			player.die();
+		if (player.intersects(enemyCubes[i]) && invulnerableTime <= 0) {
+			player.hit();
+			enemyCubes[i].destroy();
+			enemyCubes.splice(i, 1);
 			break;
 		}
 	}
 	// Check shadow interactions
@@ -668,8 +709,12 @@
 }
 // Main update function
 game.update = function () {
 	if (gameRunning) {
+		// Update invulnerability timer
+		if (invulnerableTime > 0) {
+			invulnerableTime--;
+		}
 		// Update game elements
 		player.updatePhysics();
 		// Spawn new elements
 		spawnElements();