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

/**** 
* Classes
****/ 
var CollectableCube = Container.expand(function () {
	var self = Container.call(this);
	var cubeGraphics = self.attachAsset('collectableCube', {
		anchorX: 0.5,
		anchorY: 0.5,
		tint: 0x00ffff // Cyan color for the cube
	});
	// Create face features
	var leftEye = LK.getAsset('collectableCube', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 0.2,
		scaleY: 0.2,
		tint: 0x000000,
		// Black eyes
		x: -15,
		y: -10
	});
	var rightEye = LK.getAsset('collectableCube', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 0.2,
		scaleY: 0.2,
		tint: 0x000000,
		// Black eyes
		x: 15,
		y: -10
	});
	var mouth = LK.getAsset('collectableCube', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 0.5,
		scaleY: 0.15,
		tint: 0x000000,
		// Black mouth
		x: 0,
		y: 15
	});
	// Add the face features to the cube
	self.addChild(leftEye);
	self.addChild(rightEye);
	self.addChild(mouth);
	// Add point value text
	var pointsTxt = new Text2('+10', {
		size: 30,
		fill: 0xFFFFFF
	});
	pointsTxt.anchor.set(0.5, 0.5);
	pointsTxt.y = -40;
	self.addChild(pointsTxt);
	self.value = 10;
	self.cubeType = 'normal';
	self.spawnTime = 0;
	self.pulseAnimation = function () {
		tween(cubeGraphics, {
			scaleX: 1.2,
			scaleY: 1.2
		}, {
			duration: 300,
			easing: tween.easeInOut,
			onFinish: function onFinish() {
				tween(cubeGraphics, {
					scaleX: 1,
					scaleY: 1
				}, {
					duration: 300,
					easing: tween.easeInOut
				});
			}
		});
	};
	self.randomPosition = function (minX, maxX, minY, maxY) {
		self.x = minX + Math.random() * (maxX - minX);
		self.y = minY + Math.random() * (maxY - minY);
		self.spawnTime = Date.now();
		self.pulseAnimation();
	};
	self.setCubeType = function (type) {
		self.cubeType = type;
		switch (type) {
			case 'silver':
				self.value = 20;
				pointsTxt.setText('+20');
				cubeGraphics.tint = 0xC0C0C0; // Silver
				break;
			case 'gold':
				self.value = 30;
				pointsTxt.setText('+30');
				cubeGraphics.tint = 0xFFD700; // Gold
				break;
			case 'normal':
			default:
				self.value = 10;
				pointsTxt.setText('+10');
				cubeGraphics.tint = 0x00FFFF; // Cyan
				break;
		}
		// Update the facial expression based on cube type
		if (type === 'gold') {
			// Happy expression for gold cubes
			mouth.scaleY = 0.2;
			mouth.y = 10;
		} else if (type === 'silver') {
			// Neutral expression for silver cubes
			mouth.scaleY = 0.15;
			mouth.y = 15;
		} else {
			// Normal expression
			mouth.scaleY = 0.15;
			mouth.y = 15;
		}
	};
	return self;
});
var Obstacle = Container.expand(function () {
	var self = Container.call(this);
	var obstacleGraphics = self.attachAsset('obstacle', {
		anchorX: 0.5,
		anchorY: 0.5,
		tint: 0xff5555 // Bright red for obstacles
	});
	// Create angry face for obstacle
	var leftEye = LK.getAsset('obstacle', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 0.15,
		scaleY: 0.25,
		tint: 0xFFFFFF,
		// White eyes
		x: -40,
		y: -5
	});
	var rightEye = LK.getAsset('obstacle', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 0.15,
		scaleY: 0.25,
		tint: 0xFFFFFF,
		// White eyes
		x: 40,
		y: -5
	});
	var leftPupil = LK.getAsset('obstacle', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 0.06,
		scaleY: 0.12,
		tint: 0x000000,
		// Black pupils
		x: -40,
		y: -2
	});
	var rightPupil = LK.getAsset('obstacle', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 0.06,
		scaleY: 0.12,
		tint: 0x000000,
		// Black pupils
		x: 40,
		y: -2
	});
	var mouth = LK.getAsset('obstacle', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 0.5,
		scaleY: 0.12,
		tint: 0x000000,
		// Black mouth
		x: 0,
		y: 10
	});
	// Add face features to obstacle
	self.addChild(leftEye);
	self.addChild(rightEye);
	self.addChild(leftPupil);
	self.addChild(rightPupil);
	self.addChild(mouth);
	self.speedX = 0;
	self.speedY = 0;
	self.update = function () {
		self.x += self.speedX;
		self.y += self.speedY;
		// Bounce off screen edges
		if (self.x < obstacleGraphics.width / 2 || self.x > 2048 - obstacleGraphics.width / 2) {
			self.speedX *= -1;
		}
		if (self.y < obstacleGraphics.height / 2 || self.y > 2732 - obstacleGraphics.height / 2) {
			self.speedY *= -1;
		}
		// Rotate obstacle slightly based on direction for visual effect
		var targetRotation = Math.atan2(self.speedY, self.speedX) * 0.2;
		self.rotation += (targetRotation - self.rotation) * 0.1;
	};
	self.setRandomSpeed = function (maxSpeed) {
		// Ensure obstacle always moves by setting minimum speed
		var minSpeed = maxSpeed * 0.3;
		// Generate random speeds between min and max
		self.speedX = (Math.random() > 0.5 ? 1 : -1) * (minSpeed + Math.random() * (maxSpeed - minSpeed));
		self.speedY = (Math.random() > 0.5 ? 1 : -1) * (minSpeed + Math.random() * (maxSpeed - minSpeed));
		// Give each obstacle a unique color variation
		obstacleGraphics.tint = 0xff0000 + Math.floor(Math.random() * 0x5555);
	};
	self.randomPosition = function (minX, maxX, minY, maxY) {
		self.x = minX + Math.random() * (maxX - minX);
		self.y = minY + Math.random() * (maxY - minY);
	};
	return self;
});
var Player = Container.expand(function () {
	var self = Container.call(this);
	var playerGraphics = self.attachAsset('playerCube', {
		anchorX: 0.5,
		anchorY: 0.5,
		tint: 0x3498db // Bright blue for player
	});
	// Create face for player
	var leftEye = LK.getAsset('playerCube', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 0.2,
		scaleY: 0.2,
		tint: 0xFFFFFF,
		// White eyes
		x: -20,
		y: -15
	});
	var rightEye = LK.getAsset('playerCube', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 0.2,
		scaleY: 0.2,
		tint: 0xFFFFFF,
		// White eyes
		x: 20,
		y: -15
	});
	var leftPupil = LK.getAsset('playerCube', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 0.1,
		scaleY: 0.1,
		tint: 0x000000,
		// Black pupils
		x: -20,
		y: -15
	});
	var rightPupil = LK.getAsset('playerCube', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 0.1,
		scaleY: 0.1,
		tint: 0x000000,
		// Black pupils
		x: 20,
		y: -15
	});
	var mouth = LK.getAsset('playerCube', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 0.5,
		scaleY: 0.2,
		tint: 0x000000,
		// Black mouth
		x: 0,
		y: 15
	});
	// Add score display on player
	var scoreBubble = LK.getAsset('playerCube', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 0.7,
		scaleY: 0.5,
		tint: 0xFFFFFF,
		// White bubble
		x: 0,
		y: -60
	});
	// Add face features to player
	self.addChild(leftEye);
	self.addChild(rightEye);
	self.addChild(leftPupil);
	self.addChild(rightPupil);
	self.addChild(mouth);
	self.addChild(scoreBubble);
	// Create player score display
	var playerScoreTxt = new Text2('0', {
		size: 32,
		fill: 0x000000
	});
	playerScoreTxt.anchor.set(0.5, 0.5);
	playerScoreTxt.y = -60;
	self.addChild(playerScoreTxt);
	// Add weapon display
	var weaponHolder = new Container();
	self.addChild(weaponHolder);
	weaponHolder.y = 50;
	// Current weapon
	self.weapon = new Weapon();
	self.weapon.setWeaponType('basic', 1);
	weaponHolder.addChild(self.weapon);
	// Level indicators
	var levelIndicator = new Text2('Lv.1', {
		size: 24,
		fill: 0xFFFFFF
	});
	levelIndicator.anchor.set(0.5, 0.5);
	levelIndicator.y = 25;
	weaponHolder.addChild(levelIndicator);
	self.updateScore = function (newScore) {
		playerScoreTxt.setText(newScore);
	};
	self.updateWeapon = function (type, level) {
		self.weapon.setWeaponType(type, level);
		levelIndicator.setText('Lv.' + level);
		// Flash weapon effect
		tween(weaponHolder, {
			scaleX: 1.3,
			scaleY: 1.3
		}, {
			duration: 300,
			easing: tween.elasticOut,
			onFinish: function onFinish() {
				tween(weaponHolder, {
					scaleX: 1,
					scaleY: 1
				}, {
					duration: 200,
					easing: tween.easeOut
				});
			}
		});
	};
	self.fireWeapon = function (targets, game, weaponEffects) {
		if (self.weapon.canFire()) {
			// Get weapon stats
			var damage = self.weapon.fire();
			var type = self.weapon.type;
			// Create weapon effect
			var effect = new WeaponEffect();
			effect.setEffectType(type, damage);
			// Position at player
			effect.x = self.x;
			effect.y = self.y;
			// If we have targets, aim at the nearest one
			var nearestTarget = null;
			var minDistance = Number.MAX_VALUE;
			for (var i = 0; i < targets.length; i++) {
				var target = targets[i];
				var dx = target.x - self.x;
				var dy = target.y - self.y;
				var distance = Math.sqrt(dx * dx + dy * dy);
				if (distance < minDistance) {
					minDistance = distance;
					nearestTarget = target;
				}
			}
			if (nearestTarget) {
				var angle = Math.atan2(nearestTarget.y - self.y, nearestTarget.x - self.x);
				effect.rotation = angle;
			} else {
				// If no targets, fire forward
				effect.rotation = 0;
			}
			game.addChild(effect);
			weaponEffects.push(effect);
			// Flash the weapon
			self.weapon.alpha = 0.7;
			tween(self.weapon, {
				alpha: 1
			}, {
				duration: 200,
				easing: tween.easeOut
			});
			return true;
		}
		return false;
	};
	self.speed = 10;
	self.targetX = 0;
	self.targetY = 0;
	self.moving = false;
	self.setTarget = function (x, y) {
		self.targetX = x;
		self.targetY = y;
		self.moving = true;
		// Animate eyes to look in move direction
		var eyeAngle = Math.atan2(y - self.y, x - self.x);
		var eyeOffsetX = Math.cos(eyeAngle) * 3;
		var eyeOffsetY = Math.sin(eyeAngle) * 3;
		tween(leftPupil, {
			x: -20 + eyeOffsetX,
			y: -15 + eyeOffsetY
		}, {
			duration: 200,
			easing: tween.easeOut
		});
		tween(rightPupil, {
			x: 20 + eyeOffsetX,
			y: -15 + eyeOffsetY
		}, {
			duration: 200,
			easing: tween.easeOut
		});
	};
	self.update = function () {
		if (self.moving) {
			var dx = self.targetX - self.x;
			var dy = self.targetY - self.y;
			var distance = Math.sqrt(dx * dx + dy * dy);
			if (distance < self.speed) {
				self.x = self.targetX;
				self.y = self.targetY;
				self.moving = false;
			} else {
				var angle = Math.atan2(dy, dx);
				self.x += Math.cos(angle) * self.speed;
				self.y += Math.sin(angle) * self.speed;
			}
		}
		// Update weapon cooldown
		self.weapon.update();
	};
	return self;
});
var TimerBar = Container.expand(function () {
	var self = Container.call(this);
	var background = self.attachAsset('timerBarBackground', {
		anchorX: 0,
		anchorY: 0.5,
		alpha: 0.7 // Semi-transparent background
	});
	var bar = self.attachAsset('timerBar', {
		anchorX: 0,
		anchorY: 0.5
	});
	// Add clock icon
	var clockIcon = LK.getAsset('collectableCube', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 0.8,
		scaleY: 0.8,
		tint: 0xFFFFFF,
		x: -50,
		y: 0
	});
	self.addChild(clockIcon);
	// Add timer text
	var timerText = new Text2('30s', {
		size: 40,
		fill: 0xFFFFFF
	});
	timerText.anchor.set(0, 0.5);
	timerText.x = background.width + 20;
	timerText.y = 0;
	self.addChild(timerText);
	self.maxTime = 30000; // 30 seconds in milliseconds
	self.timeRemaining = self.maxTime;
	self.update = function (delta) {
		self.timeRemaining -= delta;
		if (self.timeRemaining < 0) {
			self.timeRemaining = 0;
		}
		var percentage = self.timeRemaining / self.maxTime;
		bar.scale.x = percentage;
		// Update timer text
		var secondsLeft = Math.ceil(self.timeRemaining / 1000);
		timerText.setText(secondsLeft + 's');
		// Change color as time runs out
		if (percentage < 0.2) {
			bar.tint = 0xe74c3c; // Red
			clockIcon.tint = 0xe74c3c;
			timerText.setText(secondsLeft + 's', {
				fill: 0xe74c3c
			});
			// Pulse animation when low on time
			if (Math.floor(self.timeRemaining / 200) % 2 === 0) {
				clockIcon.scale.x = 0.9;
				clockIcon.scale.y = 0.9;
			} else {
				clockIcon.scale.x = 0.8;
				clockIcon.scale.y = 0.8;
			}
		} else if (percentage < 0.5) {
			bar.tint = 0xf39c12; // Orange
			clockIcon.tint = 0xf39c12;
			timerText.setText(secondsLeft + 's', {
				fill: 0xf39c12
			});
		} else {
			bar.tint = 0x2ecc71; // Green
			clockIcon.tint = 0x2ecc71;
			timerText.setText(secondsLeft + 's', {
				fill: 0x2ecc71
			});
		}
	};
	self.reset = function () {
		self.timeRemaining = self.maxTime;
		bar.scale.x = 1;
		bar.tint = 0x2ecc71;
		clockIcon.tint = 0x2ecc71;
		timerText.setText(Math.ceil(self.timeRemaining / 1000) + 's', {
			fill: 0x2ecc71
		});
	};
	return self;
});
var Weapon = Container.expand(function () {
	var self = Container.call(this);
	var weaponGraphics = self.attachAsset('collectableCube', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 0.4,
		scaleY: 0.15,
		tint: 0xFFFFFF
	});
	self.type = 'basic';
	self.level = 1;
	self.attackSpeed = 1;
	self.damage = 1;
	self.cooldown = 0;
	self.setWeaponType = function (type, level) {
		self.type = type;
		self.level = level || 1;
		switch (type) {
			case 'laser':
				weaponGraphics.tint = 0xFF0000; // Red laser
				self.attackSpeed = 1.5;
				self.damage = 1;
				break;
			case 'plasma':
				weaponGraphics.tint = 0x00FF00; // Green plasma
				self.attackSpeed = 1;
				self.damage = 2;
				break;
			case 'wave':
				weaponGraphics.tint = 0x0000FF; // Blue wave
				self.attackSpeed = 0.7;
				self.damage = 3;
				break;
			case 'basic':
			default:
				weaponGraphics.tint = 0xFFFFFF; // White basic
				self.attackSpeed = 1;
				self.damage = 1;
				break;
		}
		// Apply level multipliers
		self.attackSpeed *= 1 + (self.level - 1) * 0.1;
		self.damage *= self.level;
	};
	self.update = function () {
		if (self.cooldown > 0) {
			self.cooldown--;
		}
	};
	self.canFire = function () {
		return self.cooldown <= 0;
	};
	self.fire = function () {
		// Set cooldown based on attack speed (higher attack speed = lower cooldown)
		self.cooldown = Math.round(60 / self.attackSpeed);
		return self.damage;
	};
	return self;
});
var WeaponEffect = Container.expand(function () {
	var self = Container.call(this);
	var effectGraphics = self.attachAsset('collectableCube', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 0.3,
		scaleY: 0.3
	});
	self.type = 'basic';
	self.damage = 1;
	self.speed = 15;
	self.lifetime = 60; // frames
	self.setEffectType = function (type, damage) {
		self.type = type;
		self.damage = damage || 1;
		switch (type) {
			case 'laser':
				effectGraphics.tint = 0xFF0000; // Red laser
				effectGraphics.scaleX = 0.2;
				effectGraphics.scaleY = 0.5;
				self.speed = 20;
				break;
			case 'plasma':
				effectGraphics.tint = 0x00FF00; // Green plasma
				effectGraphics.scaleX = 0.4;
				effectGraphics.scaleY = 0.4;
				self.speed = 15;
				break;
			case 'wave':
				effectGraphics.tint = 0x0000FF; // Blue wave
				effectGraphics.scaleX = 0.6;
				effectGraphics.scaleY = 0.3;
				self.speed = 10;
				break;
			case 'basic':
			default:
				effectGraphics.tint = 0xFFFFFF; // White basic
				effectGraphics.scaleX = 0.3;
				effectGraphics.scaleY = 0.3;
				self.speed = 15;
				break;
		}
		// Pulse animation
		tween(effectGraphics, {
			alpha: 0.7
		}, {
			duration: 100,
			easing: tween.easeInOut,
			onFinish: function onFinish() {
				tween(effectGraphics, {
					alpha: 1
				}, {
					duration: 100,
					easing: tween.easeInOut
				});
			}
		});
	};
	self.update = function () {
		// Move in direction of rotation
		self.x += Math.cos(self.rotation) * self.speed;
		self.y += Math.sin(self.rotation) * self.speed;
		// Update lifetime
		self.lifetime--;
		// Add trailing effect
		if (self.lifetime % 3 === 0) {
			var trail = LK.getAsset('collectableCube', {
				anchorX: 0.5,
				anchorY: 0.5,
				scaleX: effectGraphics.scaleX * 0.7,
				scaleY: effectGraphics.scaleY * 0.7,
				alpha: 0.5,
				tint: effectGraphics.tint,
				x: 0,
				y: 0
			});
			trail.x = self.x;
			trail.y = self.y;
			trail.parent = self.parent;
			self.parent.addChild(trail);
			tween(trail, {
				alpha: 0,
				scaleX: trail.scaleX * 0.5,
				scaleY: trail.scaleY * 0.5
			}, {
				duration: 300,
				easing: tween.easeOut,
				onFinish: function onFinish() {
					if (trail.parent) {
						trail.parent.removeChild(trail);
					}
				}
			});
		}
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x8e44ad // Vibrant purple background
});

/**** 
* Game Code
****/ 
// Game constants
var GAME_WIDTH = 2048;
var GAME_HEIGHT = 2732;
var PLAYER_SPEED_BASE = 10;
var OBSTACLE_SPEED_BASE = 3;
var CUBE_SPAWN_INTERVAL_BASE = 1500; // ms
var OBSTACLE_SPAWN_INTERVAL = 5000; // ms
var LEVEL_UP_SCORE = 100;
var TIME_BONUS_MAX = 50;
var TIME_BONUS_THRESHOLD = 1000; // ms
var WEAPON_UPGRADE_SCORE = 100; // Score needed for weapon upgrades
// Cube type probabilities
var CUBE_TYPES = {
	normal: {
		chance: 70,
		value: 10
	},
	silver: {
		chance: 20,
		value: 20
	},
	gold: {
		chance: 10,
		value: 30
	}
};
// Weapon types by level
var WEAPON_UPGRADES = [{
	level: 1,
	type: 'basic',
	name: 'Basic Blaster'
}, {
	level: 2,
	type: 'laser',
	name: 'Laser Beam'
}, {
	level: 3,
	type: 'plasma',
	name: 'Plasma Cannon'
}, {
	level: 4,
	type: 'wave',
	name: 'Wave Disruptor'
}];
// Game variables
var player;
var collectableCubes = [];
var obstacles = [];
var weaponEffects = [];
var timerBar;
var score = 0;
var level = 1;
var weaponLevel = 1;
var lastCubeSpawnTime = 0;
var lastObstacleSpawnTime = 0;
var lastWeaponFireTime = 0;
var cubeSpawnInterval = CUBE_SPAWN_INTERVAL_BASE;
var playerSpeed = PLAYER_SPEED_BASE;
var obstacleSpeed = OBSTACLE_SPEED_BASE;
var lastTime = Date.now();
var gameActive = true;
var highScore = storage.highScore || 0;
var nextWeaponUpgrade = WEAPON_UPGRADE_SCORE;
// UI Elements
var scoreTxt = new Text2('Score: 0', {
	size: 70,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0, 0);
LK.gui.topRight.addChild(scoreTxt);
scoreTxt.x = -scoreTxt.width - 20;
scoreTxt.y = 20;
var levelTxt = new Text2('Level: 1', {
	size: 70,
	fill: 0xFFFFFF
});
levelTxt.anchor.set(0, 0);
LK.gui.topRight.addChild(levelTxt);
levelTxt.x = -levelTxt.width - 20;
levelTxt.y = scoreTxt.y + scoreTxt.height + 10;
var highScoreTxt = new Text2('High Score: ' + highScore, {
	size: 70,
	fill: 0xFFFFFF
});
highScoreTxt.anchor.set(0, 0);
LK.gui.topRight.addChild(highScoreTxt);
highScoreTxt.x = -highScoreTxt.width - 20;
highScoreTxt.y = levelTxt.y + levelTxt.height + 10;
// Initialize game elements
function initGame() {
	// Create colorful background patterns
	createBackgroundPatterns();
	// Create and position player
	player = new Player();
	player.x = GAME_WIDTH / 2;
	player.y = GAME_HEIGHT / 2;
	player.speed = playerSpeed;
	game.addChild(player);
	// Add a welcome animation
	tween(player, {
		scaleX: 0,
		scaleY: 0
	}, {
		duration: 0
	});
	tween(player, {
		scaleX: 1.2,
		scaleY: 1.2
	}, {
		duration: 500,
		easing: tween.elasticOut,
		onFinish: function onFinish() {
			tween(player, {
				scaleX: 1,
				scaleY: 1
			}, {
				duration: 300,
				easing: tween.easeOut
			});
		}
	});
	// Create timer bar
	timerBar = new TimerBar();
	timerBar.x = (GAME_WIDTH - 1800) / 2;
	timerBar.y = 100;
	game.addChild(timerBar);
	// Start with a few cubes and obstacles
	spawnCollectableCube();
	spawnObstacle();
	// Play background music
	LK.playMusic('gameMusic');
}
function createBackgroundPatterns() {
	// Create some decorative background elements
	for (var i = 0; i < 20; i++) {
		var decoration = LK.getAsset('collectableCube', {
			anchorX: 0.5,
			anchorY: 0.5,
			scaleX: 0.3 + Math.random() * 0.3,
			scaleY: 0.3 + Math.random() * 0.3,
			alpha: 0.15,
			tint: Math.random() * 0xFFFFFF,
			x: Math.random() * GAME_WIDTH,
			y: Math.random() * GAME_HEIGHT
		});
		// Place decorations behind game elements
		game.addChildAt(decoration, 0);
		// Add subtle animation to background elements
		var animDuration = 3000 + Math.random() * 5000;
		tween(decoration, {
			rotation: Math.random() * Math.PI * 2
		}, {
			duration: animDuration,
			easing: tween.easeInOut
		});
	}
}
function updateGame() {
	if (!gameActive) {
		return;
	}
	var currentTime = Date.now();
	var delta = currentTime - lastTime;
	lastTime = currentTime;
	// Update timer
	timerBar.update(delta);
	if (timerBar.timeRemaining <= 0) {
		gameOver();
		return;
	}
	// Spawn new cubes
	if (currentTime - lastCubeSpawnTime > cubeSpawnInterval) {
		spawnCollectableCube();
		lastCubeSpawnTime = currentTime;
	}
	// Spawn new obstacles
	if (currentTime - lastObstacleSpawnTime > OBSTACLE_SPAWN_INTERVAL) {
		spawnObstacle();
		lastObstacleSpawnTime = currentTime;
	}
	// Fire weapon automatically
	if (currentTime - lastWeaponFireTime > 1000) {
		if (player.fireWeapon(obstacles, game, weaponEffects)) {
			lastWeaponFireTime = currentTime;
		}
	}
	// Update weapon effects
	for (var i = weaponEffects.length - 1; i >= 0; i--) {
		var effect = weaponEffects[i];
		// Update effect
		effect.update();
		// Check if effect is expired
		if (effect.lifetime <= 0) {
			game.removeChild(effect);
			weaponEffects.splice(i, 1);
			continue;
		}
		// Check for collisions with obstacles
		for (var j = 0; j < obstacles.length; j++) {
			var obstacle = obstacles[j];
			if (effect.intersects(obstacle)) {
				// Hit effect
				var hitEffect = LK.getAsset('collectableCube', {
					anchorX: 0.5,
					anchorY: 0.5,
					scaleX: 0.5,
					scaleY: 0.5,
					tint: effect.tint,
					alpha: 0.8,
					x: effect.x,
					y: effect.y
				});
				game.addChild(hitEffect);
				// Animate hit effect
				tween(hitEffect, {
					scaleX: 1.5,
					scaleY: 1.5,
					alpha: 0
				}, {
					duration: 300,
					easing: tween.easeOut,
					onFinish: function onFinish() {
						game.removeChild(hitEffect);
					}
				});
				// Remove effect
				game.removeChild(effect);
				weaponEffects.splice(i, 1);
				// Destroy obstacle
				game.removeChild(obstacle);
				obstacles.splice(j, 1);
				// Add score for destroying obstacle
				addScore(5 * weaponLevel);
				break;
			}
		}
	}
	// Check for collisions
	checkCollisions();
}
function spawnCollectableCube() {
	var cube = new CollectableCube();
	// Determine cube type based on probabilities and level
	var rand = Math.random() * 100;
	var cubeType = 'normal';
	// Adjust probabilities based on level (higher levels get better cubes)
	var silverChance = CUBE_TYPES.silver.chance + level * 1.5;
	var goldChance = CUBE_TYPES.gold.chance + level * 1;
	if (rand < goldChance) {
		cubeType = 'gold';
	} else if (rand < goldChance + silverChance) {
		cubeType = 'silver';
	}
	// Set the cube type
	cube.setCubeType(cubeType);
	cube.randomPosition(100, GAME_WIDTH - 100, 200, GAME_HEIGHT - 200);
	// Make sure cube doesn't spawn on obstacles
	var validPosition = false;
	var maxAttempts = 10;
	var attempts = 0;
	while (!validPosition && attempts < maxAttempts) {
		validPosition = true;
		for (var i = 0; i < obstacles.length; i++) {
			var obstacle = obstacles[i];
			var dx = cube.x - obstacle.x;
			var dy = cube.y - obstacle.y;
			var distance = Math.sqrt(dx * dx + dy * dy);
			if (distance < 150) {
				validPosition = false;
				cube.randomPosition(100, GAME_WIDTH - 100, 200, GAME_HEIGHT - 200);
				break;
			}
		}
		attempts++;
	}
	collectableCubes.push(cube);
	game.addChild(cube);
	// Animate cube entrance
	cube.scale.x = 0;
	cube.scale.y = 0;
	tween(cube, {
		scaleX: 1,
		scaleY: 1
	}, {
		duration: 300,
		easing: tween.elasticOut
	});
}
function spawnObstacle() {
	var obstacle = new Obstacle();
	obstacle.randomPosition(100, GAME_WIDTH - 100, 200, GAME_HEIGHT - 200);
	obstacle.setRandomSpeed(obstacleSpeed);
	// Make sure obstacle doesn't spawn on player
	var dx = obstacle.x - player.x;
	var dy = obstacle.y - player.y;
	var distance = Math.sqrt(dx * dx + dy * dy);
	if (distance < 200) {
		obstacle.x = GAME_WIDTH - obstacle.x;
		obstacle.y = GAME_HEIGHT - obstacle.y;
	}
	obstacles.push(obstacle);
	game.addChild(obstacle);
}
function checkCollisions() {
	// Check collisions with collectables
	for (var i = collectableCubes.length - 1; i >= 0; i--) {
		var cube = collectableCubes[i];
		if (player.intersects(cube)) {
			// Calculate time bonus
			var collectionTime = Date.now() - cube.spawnTime;
			var timeBonus = 0;
			if (collectionTime < TIME_BONUS_THRESHOLD) {
				timeBonus = Math.round(TIME_BONUS_MAX * (1 - collectionTime / TIME_BONUS_THRESHOLD));
			}
			// Add score and remove cube
			addScore(cube.value + timeBonus);
			game.removeChild(cube);
			collectableCubes.splice(i, 1);
			// Play collect sound
			LK.getSound('collect').play();
			// Check for level up
			checkLevelUp();
		}
	}
	// Check collisions with obstacles
	for (var j = 0; j < obstacles.length; j++) {
		var obstacle = obstacles[j];
		if (player.intersects(obstacle)) {
			// Player hit an obstacle
			LK.getSound('collision').play();
			LK.effects.flashScreen(0xe74c3c, 300);
			// Reduce timer as penalty
			timerBar.timeRemaining -= 3000; // 3 second penalty
			// Push player away from obstacle
			var dx = player.x - obstacle.x;
			var dy = player.y - obstacle.y;
			var angle = Math.atan2(dy, dx);
			player.x += Math.cos(angle) * 100;
			player.y += Math.sin(angle) * 100;
			// Keep player within bounds
			player.x = Math.max(40, Math.min(GAME_WIDTH - 40, player.x));
			player.y = Math.max(40, Math.min(GAME_HEIGHT - 40, player.y));
		}
	}
}
function addScore(points) {
	score += points;
	scoreTxt.setText('Score: ' + score);
	// Update player's score display
	if (player && player.updateScore) {
		player.updateScore(score);
	}
	// Create floating points animation
	var floatingPoints = new Text2("+" + points, {
		size: 60,
		fill: 0x00ff00
	});
	floatingPoints.anchor.set(0.5, 0.5);
	floatingPoints.x = player.x;
	floatingPoints.y = player.y - 100;
	game.addChild(floatingPoints);
	// Animate the floating points
	tween(floatingPoints, {
		y: floatingPoints.y - 150,
		alpha: 0
	}, {
		duration: 1000,
		easing: tween.easeOut,
		onFinish: function onFinish() {
			game.removeChild(floatingPoints);
		}
	});
	// Flash score text
	tween(scoreTxt, {
		scale: 1.2
	}, {
		duration: 200,
		easing: tween.easeOut,
		onFinish: function onFinish() {
			tween(scoreTxt, {
				scale: 1
			}, {
				duration: 200,
				easing: tween.easeIn
			});
		}
	});
}
function checkLevelUp() {
	// Check for weapon upgrades first
	if (score >= nextWeaponUpgrade) {
		// Find next weapon upgrade
		var upgrade = null;
		for (var i = 0; i < WEAPON_UPGRADES.length; i++) {
			if (WEAPON_UPGRADES[i].level > weaponLevel) {
				upgrade = WEAPON_UPGRADES[i];
				break;
			}
		}
		if (upgrade) {
			weaponLevel = upgrade.level;
			nextWeaponUpgrade += WEAPON_UPGRADE_SCORE * weaponLevel;
			// Update player's weapon
			player.updateWeapon(upgrade.type, weaponLevel);
			// Show weapon upgrade notification
			var upgradeText = new Text2("New Weapon: " + upgrade.name + "!", {
				size: 80,
				fill: 0xFFD700
			});
			upgradeText.anchor.set(0.5, 0.5);
			upgradeText.x = GAME_WIDTH / 2;
			upgradeText.y = GAME_HEIGHT / 2 - 200;
			game.addChild(upgradeText);
			// Animate the notification
			tween(upgradeText, {
				y: upgradeText.y - 100,
				alpha: 0
			}, {
				duration: 2000,
				easing: tween.easeOut,
				onFinish: function onFinish() {
					game.removeChild(upgradeText);
				}
			});
			// Visual effect for weapon upgrade
			LK.effects.flashScreen(0x00FFFF, 500);
		}
	}
	// Regular level up check
	if (score >= level * LEVEL_UP_SCORE) {
		level++;
		levelTxt.setText('Level: ' + level);
		// Increase difficulty
		cubeSpawnInterval = Math.max(500, CUBE_SPAWN_INTERVAL_BASE - (level - 1) * 150);
		playerSpeed = PLAYER_SPEED_BASE + (level - 1) * 1;
		obstacleSpeed = OBSTACLE_SPEED_BASE + (level - 1) * 0.5;
		// Update player speed
		player.speed = playerSpeed;
		// Update obstacle speeds
		for (var i = 0; i < obstacles.length; i++) {
			obstacles[i].setRandomSpeed(obstacleSpeed);
		}
		// Visual feedback for level up
		LK.effects.flashScreen(0x2ecc71, 500);
		// Add time bonus for leveling up
		timerBar.timeRemaining += 5000; // 5 second bonus
		if (timerBar.timeRemaining > timerBar.maxTime) {
			timerBar.timeRemaining = timerBar.maxTime;
		}
		// Flash level text
		tween(levelTxt, {
			scale: 1.3
		}, {
			duration: 300,
			easing: tween.easeOut,
			onFinish: function onFinish() {
				tween(levelTxt, {
					scale: 1
				}, {
					duration: 300,
					easing: tween.easeIn
				});
			}
		});
	}
}
function gameOver() {
	gameActive = false;
	// Update high score
	if (score > highScore) {
		highScore = score;
		storage.highScore = highScore;
		highScoreTxt.setText('High Score: ' + highScore);
	}
	// Show game over
	LK.showGameOver();
}
function resetGame() {
	// Reset game variables
	score = 0;
	level = 1;
	weaponLevel = 1;
	nextWeaponUpgrade = WEAPON_UPGRADE_SCORE;
	cubeSpawnInterval = CUBE_SPAWN_INTERVAL_BASE;
	playerSpeed = PLAYER_SPEED_BASE;
	obstacleSpeed = OBSTACLE_SPEED_BASE;
	lastTime = Date.now();
	lastCubeSpawnTime = 0;
	lastObstacleSpawnTime = 0;
	lastWeaponFireTime = 0;
	gameActive = true;
	// Clear all game elements
	while (collectableCubes.length > 0) {
		var cube = collectableCubes.pop();
		game.removeChild(cube);
	}
	while (obstacles.length > 0) {
		var obstacle = obstacles.pop();
		game.removeChild(obstacle);
	}
	while (weaponEffects.length > 0) {
		var effect = weaponEffects.pop();
		game.removeChild(effect);
	}
	if (player) {
		game.removeChild(player);
	}
	if (timerBar) {
		game.removeChild(timerBar);
	}
	// Reset UI
	scoreTxt.setText('Score: 0');
	levelTxt.setText('Level: 1');
	highScoreTxt.setText('High Score: ' + highScore);
	// Initialize game again
	initGame();
}
// Event handlers
game.down = function (x, y, obj) {
	if (gameActive) {
		player.setTarget(x, y);
	}
};
game.move = function (x, y, obj) {
	if (gameActive && obj.down) {
		player.setTarget(x, y);
	}
};
game.update = function () {
	updateGame();
	// Update player
	if (player) {
		player.update();
	}
	// Update obstacles
	for (var i = 0; i < obstacles.length; i++) {
		obstacles[i].update();
	}
	// Update weapon effects
	for (var i = 0; i < weaponEffects.length; i++) {
		if (weaponEffects[i].update) {
			weaponEffects[i].update();
		}
	}
};
// Initialize the game
initGame();

===================================================================
--- original.js
+++ change.js
@@ -57,8 +57,9 @@
 	pointsTxt.anchor.set(0.5, 0.5);
 	pointsTxt.y = -40;
 	self.addChild(pointsTxt);
 	self.value = 10;
+	self.cubeType = 'normal';
 	self.spawnTime = 0;
 	self.pulseAnimation = function () {
 		tween(cubeGraphics, {
 			scaleX: 1.2,
@@ -81,11 +82,44 @@
 		self.x = minX + Math.random() * (maxX - minX);
 		self.y = minY + Math.random() * (maxY - minY);
 		self.spawnTime = Date.now();
 		self.pulseAnimation();
-		// Random cube color for variety
-		cubeGraphics.tint = Math.random() * 0xFFFFFF;
 	};
+	self.setCubeType = function (type) {
+		self.cubeType = type;
+		switch (type) {
+			case 'silver':
+				self.value = 20;
+				pointsTxt.setText('+20');
+				cubeGraphics.tint = 0xC0C0C0; // Silver
+				break;
+			case 'gold':
+				self.value = 30;
+				pointsTxt.setText('+30');
+				cubeGraphics.tint = 0xFFD700; // Gold
+				break;
+			case 'normal':
+			default:
+				self.value = 10;
+				pointsTxt.setText('+10');
+				cubeGraphics.tint = 0x00FFFF; // Cyan
+				break;
+		}
+		// Update the facial expression based on cube type
+		if (type === 'gold') {
+			// Happy expression for gold cubes
+			mouth.scaleY = 0.2;
+			mouth.y = 10;
+		} else if (type === 'silver') {
+			// Neutral expression for silver cubes
+			mouth.scaleY = 0.15;
+			mouth.y = 15;
+		} else {
+			// Normal expression
+			mouth.scaleY = 0.15;
+			mouth.y = 15;
+		}
+	};
 	return self;
 });
 var Obstacle = Container.expand(function () {
 	var self = Container.call(this);
@@ -265,11 +299,93 @@
 	});
 	playerScoreTxt.anchor.set(0.5, 0.5);
 	playerScoreTxt.y = -60;
 	self.addChild(playerScoreTxt);
+	// Add weapon display
+	var weaponHolder = new Container();
+	self.addChild(weaponHolder);
+	weaponHolder.y = 50;
+	// Current weapon
+	self.weapon = new Weapon();
+	self.weapon.setWeaponType('basic', 1);
+	weaponHolder.addChild(self.weapon);
+	// Level indicators
+	var levelIndicator = new Text2('Lv.1', {
+		size: 24,
+		fill: 0xFFFFFF
+	});
+	levelIndicator.anchor.set(0.5, 0.5);
+	levelIndicator.y = 25;
+	weaponHolder.addChild(levelIndicator);
 	self.updateScore = function (newScore) {
 		playerScoreTxt.setText(newScore);
 	};
+	self.updateWeapon = function (type, level) {
+		self.weapon.setWeaponType(type, level);
+		levelIndicator.setText('Lv.' + level);
+		// Flash weapon effect
+		tween(weaponHolder, {
+			scaleX: 1.3,
+			scaleY: 1.3
+		}, {
+			duration: 300,
+			easing: tween.elasticOut,
+			onFinish: function onFinish() {
+				tween(weaponHolder, {
+					scaleX: 1,
+					scaleY: 1
+				}, {
+					duration: 200,
+					easing: tween.easeOut
+				});
+			}
+		});
+	};
+	self.fireWeapon = function (targets, game, weaponEffects) {
+		if (self.weapon.canFire()) {
+			// Get weapon stats
+			var damage = self.weapon.fire();
+			var type = self.weapon.type;
+			// Create weapon effect
+			var effect = new WeaponEffect();
+			effect.setEffectType(type, damage);
+			// Position at player
+			effect.x = self.x;
+			effect.y = self.y;
+			// If we have targets, aim at the nearest one
+			var nearestTarget = null;
+			var minDistance = Number.MAX_VALUE;
+			for (var i = 0; i < targets.length; i++) {
+				var target = targets[i];
+				var dx = target.x - self.x;
+				var dy = target.y - self.y;
+				var distance = Math.sqrt(dx * dx + dy * dy);
+				if (distance < minDistance) {
+					minDistance = distance;
+					nearestTarget = target;
+				}
+			}
+			if (nearestTarget) {
+				var angle = Math.atan2(nearestTarget.y - self.y, nearestTarget.x - self.x);
+				effect.rotation = angle;
+			} else {
+				// If no targets, fire forward
+				effect.rotation = 0;
+			}
+			game.addChild(effect);
+			weaponEffects.push(effect);
+			// Flash the weapon
+			self.weapon.alpha = 0.7;
+			tween(self.weapon, {
+				alpha: 1
+			}, {
+				duration: 200,
+				easing: tween.easeOut
+			});
+			return true;
+		}
+		return false;
+	};
 	self.speed = 10;
 	self.targetX = 0;
 	self.targetY = 0;
 	self.moving = false;
@@ -310,8 +426,10 @@
 				self.x += Math.cos(angle) * self.speed;
 				self.y += Math.sin(angle) * self.speed;
 			}
 		}
+		// Update weapon cooldown
+		self.weapon.update();
 	};
 	return self;
 });
 var TimerBar = Container.expand(function () {
@@ -396,8 +514,164 @@
 		});
 	};
 	return self;
 });
+var Weapon = Container.expand(function () {
+	var self = Container.call(this);
+	var weaponGraphics = self.attachAsset('collectableCube', {
+		anchorX: 0.5,
+		anchorY: 0.5,
+		scaleX: 0.4,
+		scaleY: 0.15,
+		tint: 0xFFFFFF
+	});
+	self.type = 'basic';
+	self.level = 1;
+	self.attackSpeed = 1;
+	self.damage = 1;
+	self.cooldown = 0;
+	self.setWeaponType = function (type, level) {
+		self.type = type;
+		self.level = level || 1;
+		switch (type) {
+			case 'laser':
+				weaponGraphics.tint = 0xFF0000; // Red laser
+				self.attackSpeed = 1.5;
+				self.damage = 1;
+				break;
+			case 'plasma':
+				weaponGraphics.tint = 0x00FF00; // Green plasma
+				self.attackSpeed = 1;
+				self.damage = 2;
+				break;
+			case 'wave':
+				weaponGraphics.tint = 0x0000FF; // Blue wave
+				self.attackSpeed = 0.7;
+				self.damage = 3;
+				break;
+			case 'basic':
+			default:
+				weaponGraphics.tint = 0xFFFFFF; // White basic
+				self.attackSpeed = 1;
+				self.damage = 1;
+				break;
+		}
+		// Apply level multipliers
+		self.attackSpeed *= 1 + (self.level - 1) * 0.1;
+		self.damage *= self.level;
+	};
+	self.update = function () {
+		if (self.cooldown > 0) {
+			self.cooldown--;
+		}
+	};
+	self.canFire = function () {
+		return self.cooldown <= 0;
+	};
+	self.fire = function () {
+		// Set cooldown based on attack speed (higher attack speed = lower cooldown)
+		self.cooldown = Math.round(60 / self.attackSpeed);
+		return self.damage;
+	};
+	return self;
+});
+var WeaponEffect = Container.expand(function () {
+	var self = Container.call(this);
+	var effectGraphics = self.attachAsset('collectableCube', {
+		anchorX: 0.5,
+		anchorY: 0.5,
+		scaleX: 0.3,
+		scaleY: 0.3
+	});
+	self.type = 'basic';
+	self.damage = 1;
+	self.speed = 15;
+	self.lifetime = 60; // frames
+	self.setEffectType = function (type, damage) {
+		self.type = type;
+		self.damage = damage || 1;
+		switch (type) {
+			case 'laser':
+				effectGraphics.tint = 0xFF0000; // Red laser
+				effectGraphics.scaleX = 0.2;
+				effectGraphics.scaleY = 0.5;
+				self.speed = 20;
+				break;
+			case 'plasma':
+				effectGraphics.tint = 0x00FF00; // Green plasma
+				effectGraphics.scaleX = 0.4;
+				effectGraphics.scaleY = 0.4;
+				self.speed = 15;
+				break;
+			case 'wave':
+				effectGraphics.tint = 0x0000FF; // Blue wave
+				effectGraphics.scaleX = 0.6;
+				effectGraphics.scaleY = 0.3;
+				self.speed = 10;
+				break;
+			case 'basic':
+			default:
+				effectGraphics.tint = 0xFFFFFF; // White basic
+				effectGraphics.scaleX = 0.3;
+				effectGraphics.scaleY = 0.3;
+				self.speed = 15;
+				break;
+		}
+		// Pulse animation
+		tween(effectGraphics, {
+			alpha: 0.7
+		}, {
+			duration: 100,
+			easing: tween.easeInOut,
+			onFinish: function onFinish() {
+				tween(effectGraphics, {
+					alpha: 1
+				}, {
+					duration: 100,
+					easing: tween.easeInOut
+				});
+			}
+		});
+	};
+	self.update = function () {
+		// Move in direction of rotation
+		self.x += Math.cos(self.rotation) * self.speed;
+		self.y += Math.sin(self.rotation) * self.speed;
+		// Update lifetime
+		self.lifetime--;
+		// Add trailing effect
+		if (self.lifetime % 3 === 0) {
+			var trail = LK.getAsset('collectableCube', {
+				anchorX: 0.5,
+				anchorY: 0.5,
+				scaleX: effectGraphics.scaleX * 0.7,
+				scaleY: effectGraphics.scaleY * 0.7,
+				alpha: 0.5,
+				tint: effectGraphics.tint,
+				x: 0,
+				y: 0
+			});
+			trail.x = self.x;
+			trail.y = self.y;
+			trail.parent = self.parent;
+			self.parent.addChild(trail);
+			tween(trail, {
+				alpha: 0,
+				scaleX: trail.scaleX * 0.5,
+				scaleY: trail.scaleY * 0.5
+			}, {
+				duration: 300,
+				easing: tween.easeOut,
+				onFinish: function onFinish() {
+					if (trail.parent) {
+						trail.parent.removeChild(trail);
+					}
+				}
+			});
+		}
+	};
+	return self;
+});
 
 /**** 
 * Initialize Game
 ****/ 
@@ -417,23 +691,61 @@
 var OBSTACLE_SPAWN_INTERVAL = 5000; // ms
 var LEVEL_UP_SCORE = 100;
 var TIME_BONUS_MAX = 50;
 var TIME_BONUS_THRESHOLD = 1000; // ms
+var WEAPON_UPGRADE_SCORE = 100; // Score needed for weapon upgrades
+// Cube type probabilities
+var CUBE_TYPES = {
+	normal: {
+		chance: 70,
+		value: 10
+	},
+	silver: {
+		chance: 20,
+		value: 20
+	},
+	gold: {
+		chance: 10,
+		value: 30
+	}
+};
+// Weapon types by level
+var WEAPON_UPGRADES = [{
+	level: 1,
+	type: 'basic',
+	name: 'Basic Blaster'
+}, {
+	level: 2,
+	type: 'laser',
+	name: 'Laser Beam'
+}, {
+	level: 3,
+	type: 'plasma',
+	name: 'Plasma Cannon'
+}, {
+	level: 4,
+	type: 'wave',
+	name: 'Wave Disruptor'
+}];
 // Game variables
 var player;
 var collectableCubes = [];
 var obstacles = [];
+var weaponEffects = [];
 var timerBar;
 var score = 0;
 var level = 1;
+var weaponLevel = 1;
 var lastCubeSpawnTime = 0;
 var lastObstacleSpawnTime = 0;
+var lastWeaponFireTime = 0;
 var cubeSpawnInterval = CUBE_SPAWN_INTERVAL_BASE;
 var playerSpeed = PLAYER_SPEED_BASE;
 var obstacleSpeed = OBSTACLE_SPEED_BASE;
 var lastTime = Date.now();
 var gameActive = true;
 var highScore = storage.highScore || 0;
+var nextWeaponUpgrade = WEAPON_UPGRADE_SCORE;
 // UI Elements
 var scoreTxt = new Text2('Score: 0', {
 	size: 70,
 	fill: 0xFFFFFF
@@ -549,13 +861,83 @@
 	if (currentTime - lastObstacleSpawnTime > OBSTACLE_SPAWN_INTERVAL) {
 		spawnObstacle();
 		lastObstacleSpawnTime = currentTime;
 	}
+	// Fire weapon automatically
+	if (currentTime - lastWeaponFireTime > 1000) {
+		if (player.fireWeapon(obstacles, game, weaponEffects)) {
+			lastWeaponFireTime = currentTime;
+		}
+	}
+	// Update weapon effects
+	for (var i = weaponEffects.length - 1; i >= 0; i--) {
+		var effect = weaponEffects[i];
+		// Update effect
+		effect.update();
+		// Check if effect is expired
+		if (effect.lifetime <= 0) {
+			game.removeChild(effect);
+			weaponEffects.splice(i, 1);
+			continue;
+		}
+		// Check for collisions with obstacles
+		for (var j = 0; j < obstacles.length; j++) {
+			var obstacle = obstacles[j];
+			if (effect.intersects(obstacle)) {
+				// Hit effect
+				var hitEffect = LK.getAsset('collectableCube', {
+					anchorX: 0.5,
+					anchorY: 0.5,
+					scaleX: 0.5,
+					scaleY: 0.5,
+					tint: effect.tint,
+					alpha: 0.8,
+					x: effect.x,
+					y: effect.y
+				});
+				game.addChild(hitEffect);
+				// Animate hit effect
+				tween(hitEffect, {
+					scaleX: 1.5,
+					scaleY: 1.5,
+					alpha: 0
+				}, {
+					duration: 300,
+					easing: tween.easeOut,
+					onFinish: function onFinish() {
+						game.removeChild(hitEffect);
+					}
+				});
+				// Remove effect
+				game.removeChild(effect);
+				weaponEffects.splice(i, 1);
+				// Destroy obstacle
+				game.removeChild(obstacle);
+				obstacles.splice(j, 1);
+				// Add score for destroying obstacle
+				addScore(5 * weaponLevel);
+				break;
+			}
+		}
+	}
 	// Check for collisions
 	checkCollisions();
 }
 function spawnCollectableCube() {
 	var cube = new CollectableCube();
+	// Determine cube type based on probabilities and level
+	var rand = Math.random() * 100;
+	var cubeType = 'normal';
+	// Adjust probabilities based on level (higher levels get better cubes)
+	var silverChance = CUBE_TYPES.silver.chance + level * 1.5;
+	var goldChance = CUBE_TYPES.gold.chance + level * 1;
+	if (rand < goldChance) {
+		cubeType = 'gold';
+	} else if (rand < goldChance + silverChance) {
+		cubeType = 'silver';
+	}
+	// Set the cube type
+	cube.setCubeType(cubeType);
 	cube.randomPosition(100, GAME_WIDTH - 100, 200, GAME_HEIGHT - 200);
 	// Make sure cube doesn't spawn on obstacles
 	var validPosition = false;
 	var maxAttempts = 10;
@@ -576,8 +958,18 @@
 		attempts++;
 	}
 	collectableCubes.push(cube);
 	game.addChild(cube);
+	// Animate cube entrance
+	cube.scale.x = 0;
+	cube.scale.y = 0;
+	tween(cube, {
+		scaleX: 1,
+		scaleY: 1
+	}, {
+		duration: 300,
+		easing: tween.elasticOut
+	});
 }
 function spawnObstacle() {
 	var obstacle = new Obstacle();
 	obstacle.randomPosition(100, GAME_WIDTH - 100, 200, GAME_HEIGHT - 200);
@@ -678,8 +1070,48 @@
 		}
 	});
 }
 function checkLevelUp() {
+	// Check for weapon upgrades first
+	if (score >= nextWeaponUpgrade) {
+		// Find next weapon upgrade
+		var upgrade = null;
+		for (var i = 0; i < WEAPON_UPGRADES.length; i++) {
+			if (WEAPON_UPGRADES[i].level > weaponLevel) {
+				upgrade = WEAPON_UPGRADES[i];
+				break;
+			}
+		}
+		if (upgrade) {
+			weaponLevel = upgrade.level;
+			nextWeaponUpgrade += WEAPON_UPGRADE_SCORE * weaponLevel;
+			// Update player's weapon
+			player.updateWeapon(upgrade.type, weaponLevel);
+			// Show weapon upgrade notification
+			var upgradeText = new Text2("New Weapon: " + upgrade.name + "!", {
+				size: 80,
+				fill: 0xFFD700
+			});
+			upgradeText.anchor.set(0.5, 0.5);
+			upgradeText.x = GAME_WIDTH / 2;
+			upgradeText.y = GAME_HEIGHT / 2 - 200;
+			game.addChild(upgradeText);
+			// Animate the notification
+			tween(upgradeText, {
+				y: upgradeText.y - 100,
+				alpha: 0
+			}, {
+				duration: 2000,
+				easing: tween.easeOut,
+				onFinish: function onFinish() {
+					game.removeChild(upgradeText);
+				}
+			});
+			// Visual effect for weapon upgrade
+			LK.effects.flashScreen(0x00FFFF, 500);
+		}
+	}
+	// Regular level up check
 	if (score >= level * LEVEL_UP_SCORE) {
 		level++;
 		levelTxt.setText('Level: ' + level);
 		// Increase difficulty
@@ -730,14 +1162,17 @@
 function resetGame() {
 	// Reset game variables
 	score = 0;
 	level = 1;
+	weaponLevel = 1;
+	nextWeaponUpgrade = WEAPON_UPGRADE_SCORE;
 	cubeSpawnInterval = CUBE_SPAWN_INTERVAL_BASE;
 	playerSpeed = PLAYER_SPEED_BASE;
 	obstacleSpeed = OBSTACLE_SPEED_BASE;
 	lastTime = Date.now();
 	lastCubeSpawnTime = 0;
 	lastObstacleSpawnTime = 0;
+	lastWeaponFireTime = 0;
 	gameActive = true;
 	// Clear all game elements
 	while (collectableCubes.length > 0) {
 		var cube = collectableCubes.pop();
@@ -746,8 +1181,12 @@
 	while (obstacles.length > 0) {
 		var obstacle = obstacles.pop();
 		game.removeChild(obstacle);
 	}
+	while (weaponEffects.length > 0) {
+		var effect = weaponEffects.pop();
+		game.removeChild(effect);
+	}
 	if (player) {
 		game.removeChild(player);
 	}
 	if (timerBar) {
@@ -780,7 +1219,13 @@
 	// Update obstacles
 	for (var i = 0; i < obstacles.length; i++) {
 		obstacles[i].update();
 	}
+	// Update weapon effects
+	for (var i = 0; i < weaponEffects.length; i++) {
+		if (weaponEffects[i].update) {
+			weaponEffects[i].update();
+		}
+	}
 };
 // Initialize the game
 initGame();
\ No newline at end of file