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

/**** 
* Classes
****/ 
var Coin = Container.expand(function () {
	var self = Container.call(this);
	var coinGraphics = self.attachAsset('coin', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.collectTimer = 0;
	self.update = function () {
		// Auto-collect after short delay
		self.collectTimer++;
		if (self.collectTimer > 30) {
			// 0.5 seconds
			self.collect();
		}
		// Spin animation
		coinGraphics.rotation += 0.1;
	};
	self.collect = function () {
		LK.getSound('coin').play();
		// Remove from coins array
		for (var i = coins.length - 1; i >= 0; i--) {
			if (coins[i] === self) {
				coins.splice(i, 1);
				break;
			}
		}
		self.destroy();
	};
	return self;
});
var Enemy = Container.expand(function () {
	var self = Container.call(this);
	var enemyGraphics = self.attachAsset('enemy', {
		anchorX: 0.5,
		anchorY: 1.0
	});
	self.health = 2;
	self.speed = 1;
	self.attackCooldown = 0;
	self.fromLeft = true;
	self.lastX = 0;
	self.lastY = 0;
	self.update = function () {
		var distanceToHero = Math.sqrt(Math.pow(self.x - hero.x, 2) + Math.pow(self.y - hero.y, 2));
		var canSeeHero = distanceToHero < 300; // Line of sight range
		if (canSeeHero) {
			// Chase hero
			var dx = hero.x - self.x;
			var dy = hero.y - self.y;
			var distance = Math.sqrt(dx * dx + dy * dy);
			if (distance > 0) {
				var newX = self.x + dx / distance * self.speed;
				var newY = self.y + dy / distance * self.speed;
				// Check collision with other enemies before moving
				var wouldCollide = false;
				for (var i = 0; i < enemies.length; i++) {
					var otherEnemy = enemies[i];
					if (otherEnemy === self) continue; // Skip self
					var edx = newX - otherEnemy.x;
					var edy = newY - otherEnemy.y;
					var edistance = Math.sqrt(edx * edx + edy * edy);
					if (edistance < 70) {
						// Collision threshold between enemies
						wouldCollide = true;
						break;
					}
				}
				// Only move if no collision would occur
				if (!wouldCollide) {
					self.lastX = self.x;
					self.lastY = self.y;
					self.x = newX;
					self.y = newY;
				}
				// Face direction of movement
				enemyGraphics.scaleX = dx > 0 ? 1 : -1;
			}
			// Attack hero if close enough
			if (distanceToHero < 100 && self.attackCooldown <= 0) {
				hero.takeDamage();
				self.attackCooldown = 120; // 2 seconds at 60fps
			}
		} else {
			// Roam randomly
			if (!self.roamDirection || Math.random() < 0.01) {
				self.roamDirection = {
					x: (Math.random() - 0.5) * 2,
					y: (Math.random() - 0.5) * 2
				};
			}
			var newX = self.x + self.roamDirection.x * self.speed * 0.5;
			var newY = self.y + self.roamDirection.y * self.speed * 0.5;
			// Check collision with other enemies before roaming
			var wouldCollide = false;
			for (var i = 0; i < enemies.length; i++) {
				var otherEnemy = enemies[i];
				if (otherEnemy === self) continue; // Skip self
				var edx = newX - otherEnemy.x;
				var edy = newY - otherEnemy.y;
				var edistance = Math.sqrt(edx * edx + edy * edy);
				if (edistance < 70) {
					// Collision threshold between enemies
					wouldCollide = true;
					break;
				}
			}
			// Keep within level bounds and check collisions
			if (!wouldCollide && newX > 100 && newX < currentLevelData.width - 100) {
				self.lastX = self.x;
				self.x = newX;
				enemyGraphics.scaleX = self.roamDirection.x > 0 ? 1 : -1;
			}
			if (!wouldCollide && newY > 1800 && newY < 2200) {
				self.lastY = self.y;
				self.y = newY;
			}
		}
		if (self.attackCooldown > 0) {
			self.attackCooldown--;
		}
	};
	self.takeDamage = function () {
		self.health--;
		LK.effects.flashObject(self, 0xffffff, 200);
		if (self.health <= 0) {
			self.die();
		}
	};
	self.die = function () {
		// Drop coin
		var coin = game.addChild(new Coin());
		coin.x = self.x;
		coin.y = self.y;
		// Add score and combo
		var baseScore = 10;
		var comboMultiplier = Math.floor(hero.comboCount / 5) + 1;
		var finalScore = baseScore * comboMultiplier;
		LK.setScore(LK.getScore() + finalScore);
		hero.addCombo();
		// Remove from enemies array
		for (var i = enemies.length - 1; i >= 0; i--) {
			if (enemies[i] === self) {
				enemies.splice(i, 1);
				break;
			}
		}
		self.destroy();
		updateScoreDisplay();
	};
	return self;
});
var EnemyWarning = Container.expand(function () {
	var self = Container.call(this);
	self.targetEnemy = null;
	self.direction = 'left'; // 'left', 'right', 'up', 'down'
	self.warningGraphics = null;
	self.lastAlpha = 0;
	self.isVisible = false;
	self.setDirection = function (direction) {
		if (self.warningGraphics) {
			self.warningGraphics.destroy();
		}
		var assetName = 'warningArrow' + direction.charAt(0).toUpperCase() + direction.slice(1);
		self.warningGraphics = self.attachAsset(assetName, {
			anchorX: 0.5,
			anchorY: 0.5,
			alpha: 0
		});
		self.direction = direction;
	};
	self.update = function () {
		if (!self.targetEnemy || !self.warningGraphics) return;
		// Check if enemy is still alive
		var enemyExists = false;
		for (var i = 0; i < enemies.length; i++) {
			if (enemies[i] === self.targetEnemy) {
				enemyExists = true;
				break;
			}
		}
		if (!enemyExists) {
			self.hide();
			return;
		}
		// Calculate distance from hero to enemy
		var distanceToHero = Math.sqrt(Math.pow(self.targetEnemy.x - hero.x, 2) + Math.pow(self.targetEnemy.y - hero.y, 2));
		// Check if enemy is visible on screen
		var enemyScreenX = self.targetEnemy.x - camera.x;
		var enemyScreenY = self.targetEnemy.y - camera.y;
		var isOnScreen = enemyScreenX >= -100 && enemyScreenX <= 2148 && enemyScreenY >= -100 && enemyScreenY <= 2832;
		if (isOnScreen) {
			self.hide();
			return;
		}
		// Calculate warning opacity based on distance (closer = more visible)
		var maxDistance = 800;
		var minDistance = 300;
		var targetAlpha = 0;
		if (distanceToHero <= maxDistance) {
			var normalizedDistance = Math.max(0, Math.min(1, (maxDistance - distanceToHero) / (maxDistance - minDistance)));
			targetAlpha = normalizedDistance * 0.8;
		}
		// Smooth alpha transition
		if (Math.abs(targetAlpha - self.lastAlpha) > 0.01) {
			tween.stop(self.warningGraphics, {
				alpha: true
			});
			tween(self.warningGraphics, {
				alpha: targetAlpha
			}, {
				duration: 200
			});
			self.lastAlpha = targetAlpha;
		}
		// Position warning at screen edge
		var screenCenterX = 1024;
		var screenCenterY = 1366;
		var dx = self.targetEnemy.x - hero.x;
		var dy = self.targetEnemy.y - hero.y;
		if (Math.abs(dx) > Math.abs(dy)) {
			// Horizontal warning
			if (dx > 0) {
				self.setDirection('right');
				self.x = screenCenterX + 900;
				self.y = screenCenterY + Math.max(-600, Math.min(600, dy * 0.5));
			} else {
				self.setDirection('left');
				self.x = screenCenterX - 900;
				self.y = screenCenterY + Math.max(-600, Math.min(600, dy * 0.5));
			}
		} else {
			// Vertical warning
			if (dy > 0) {
				self.setDirection('down');
				self.x = screenCenterX + Math.max(-800, Math.min(800, dx * 0.5));
				self.y = screenCenterY + 1200;
			} else {
				self.setDirection('up');
				self.x = screenCenterX + Math.max(-800, Math.min(800, dx * 0.5));
				self.y = screenCenterY - 1200;
			}
		}
	};
	self.hide = function () {
		if (self.warningGraphics && self.warningGraphics.alpha > 0) {
			tween.stop(self.warningGraphics, {
				alpha: true
			});
			tween(self.warningGraphics, {
				alpha: 0
			}, {
				duration: 300
			});
			self.lastAlpha = 0;
		}
	};
	return self;
});
var Hero = Container.expand(function () {
	var self = Container.call(this);
	var heroGraphics = self.attachAsset('hero', {
		anchorX: 0.5,
		anchorY: 1.0
	});
	self.maxHealth = 5;
	self.health = self.maxHealth;
	self.isAttacking = false;
	self.invulnerable = false;
	self.damageBoost = false;
	self.comboCount = 0;
	self.lastX = 0;
	self.lastY = 0;
	self.attack = function (targetX) {
		if (self.isAttacking) return;
		self.isAttacking = true;
		// Face direction of attack
		if (targetX < self.x) {
			heroGraphics.scaleX = -1;
		} else {
			heroGraphics.scaleX = 1;
		}
		// Attack animation
		tween(heroGraphics, {
			scaleY: 1.2
		}, {
			duration: 100
		});
		tween(heroGraphics, {
			scaleY: 1.0
		}, {
			duration: 100,
			onFinish: function onFinish() {
				self.isAttacking = false;
			}
		});
		// Create punch effect
		var effect = game.addChild(LK.getAsset('punchEffect', {
			anchorX: 0.5,
			anchorY: 0.5,
			alpha: 0.8
		}));
		effect.x = self.x + heroGraphics.scaleX * 80;
		effect.y = self.y - 80;
		tween(effect, {
			scaleX: 2,
			scaleY: 2,
			alpha: 0
		}, {
			duration: 200,
			onFinish: function onFinish() {
				effect.destroy();
			}
		});
		LK.getSound('punch').play();
	};
	self.takeDamage = function () {
		if (self.invulnerable) return;
		self.health--;
		self.comboCount = 0;
		// Flash red when hit
		LK.effects.flashObject(self, 0xff0000, 500);
		// Temporary invulnerability
		self.invulnerable = true;
		LK.setTimeout(function () {
			self.invulnerable = false;
		}, 1000);
		LK.getSound('hit').play();
		updateHealthDisplay();
		if (self.health <= 0) {
			LK.showGameOver();
		}
	};
	self.heal = function () {
		if (self.health < self.maxHealth) {
			self.health++;
			updateHealthDisplay();
		}
	};
	self.addCombo = function () {
		self.comboCount++;
	};
	self.move = function (direction) {
		var speed = 5;
		var newX = self.x;
		var newY = self.y;
		if (direction === 'left' && self.x > 100) {
			newX = self.x - speed;
			heroGraphics.scaleX = -1;
		} else if (direction === 'right' && self.x < currentLevelData.width - 100) {
			newX = self.x + speed;
			heroGraphics.scaleX = 1;
		} else if (direction === 'up' && self.y > 1800) {
			newY = self.y - speed;
		} else if (direction === 'down' && self.y < 2200) {
			newY = self.y + speed;
		}
		// Check collision with enemies before moving
		var wouldCollide = false;
		for (var i = 0; i < enemies.length; i++) {
			var enemy = enemies[i];
			var dx = newX - enemy.x;
			var dy = newY - enemy.y;
			var distance = Math.sqrt(dx * dx + dy * dy);
			if (distance < 80) {
				// Collision threshold
				wouldCollide = true;
				break;
			}
		}
		// Only move if no collision would occur
		if (!wouldCollide) {
			self.lastX = self.x;
			self.lastY = self.y;
			self.x = newX;
			self.y = newY;
		}
		// Update camera target
		camera.targetX = self.x - 1024;
		camera.targetY = self.y - 1366;
		// Clamp camera to level bounds
		camera.targetX = Math.max(0, Math.min(camera.targetX, currentLevelData.width - 2048));
		camera.targetY = Math.max(0, Math.min(camera.targetY, currentLevelData.height - 2732));
	};
	return self;
});
var Knife = Container.expand(function () {
	var self = Container.call(this);
	var knifeGraphics = self.attachAsset('knife', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 8;
	self.direction = 1; // 1 for right, -1 for left
	self.velocityX = 0; // Velocity for precise targeting
	self.velocityY = 0; // Velocity for precise targeting
	self.lastX = 0;
	self.lastY = 0;
	self.update = function () {
		self.lastX = self.x;
		self.lastY = self.y;
		// Use velocity if set, otherwise use direction-based movement
		if (self.velocityX !== 0 || self.velocityY !== 0) {
			self.x += self.velocityX;
			self.y += self.velocityY;
		} else {
			self.x += self.speed * self.direction;
			self.y -= 2; // Slight upward arc
		}
		// Check if knife went off screen
		if (self.x < -100 || self.x > currentLevelData.width + 100 || self.y < -100 || self.y > 2900) {
			self.destroy();
			// Remove from knives array
			for (var i = knives.length - 1; i >= 0; i--) {
				if (knives[i] === self) {
					knives.splice(i, 1);
					break;
				}
			}
		}
		// Check collision with enemies (hit enemy center)
		for (var i = 0; i < enemies.length; i++) {
			var enemy = enemies[i];
			var dx = self.x - enemy.x;
			var dy = self.y - (enemy.y - 70); // Target enemy center
			var distance = Math.sqrt(dx * dx + dy * dy);
			if (distance < 50) {
				// Hit enemy center
				enemy.takeDamage();
				self.destroy();
				// Remove from knives array
				for (var j = knives.length - 1; j >= 0; j--) {
					if (knives[j] === self) {
						knives.splice(j, 1);
						break;
					}
				}
				break;
			}
		}
	};
	return self;
});
var PowerUp = Container.expand(function () {
	var self = Container.call(this);
	var powerupGraphics = self.attachAsset('powerup', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.type = 'health'; // 'health', 'invulnerable', 'damage'
	self.lifetime = 600; // 10 seconds
	self.update = function () {
		self.lifetime--;
		if (self.lifetime <= 0) {
			self.expire();
		}
		// Check collision with hero
		if (self.intersects(hero)) {
			self.collect();
		}
		// Pulse animation
		var scale = 1 + Math.sin(LK.ticks * 0.2) * 0.2;
		powerupGraphics.scaleX = scale;
		powerupGraphics.scaleY = scale;
	};
	self.collect = function () {
		LK.getSound('powerup').play();
		if (self.type === 'health') {
			hero.heal();
		} else if (self.type === 'invulnerable') {
			hero.invulnerable = true;
			LK.setTimeout(function () {
				hero.invulnerable = false;
			}, 5000);
		} else if (self.type === 'damage') {
			hero.damageBoost = true;
			LK.setTimeout(function () {
				hero.damageBoost = false;
			}, 5000);
		}
		// Remove from powerups array
		for (var i = powerups.length - 1; i >= 0; i--) {
			if (powerups[i] === self) {
				powerups.splice(i, 1);
				break;
			}
		}
		self.destroy();
	};
	self.expire = function () {
		// Remove from powerups array
		for (var i = powerups.length - 1; i >= 0; i--) {
			if (powerups[i] === self) {
				powerups.splice(i, 1);
				break;
			}
		}
		self.destroy();
	};
	return self;
});
var RouteEffect = Container.expand(function () {
	var self = Container.call(this);
	self.routePoints = [];
	self.targetEnemy = null;
	self.createRoute = function (enemy) {
		self.targetEnemy = enemy;
		self.clearRoute();
		// Calculate direct path from hero to enemy center
		var dx = enemy.x - hero.x;
		var dy = enemy.y - hero.y;
		var distance = Math.sqrt(dx * dx + dy * dy);
		if (distance > 0) {
			// Create route points along the path
			var numPoints = Math.floor(distance / 50); // Point every 50 pixels
			for (var i = 0; i <= numPoints; i++) {
				var t = i / numPoints;
				var x = hero.x + dx * t;
				var y = hero.y + dy * t;
				var routePoint = self.addChild(LK.getAsset('routeLine', {
					anchorX: 0.5,
					anchorY: 0.5,
					alpha: 0
				}));
				routePoint.x = x;
				routePoint.y = y;
				self.routePoints.push(routePoint);
				// Animate route points appearing with delay
				tween(routePoint, {
					alpha: 0.8,
					scaleX: 2,
					scaleY: 2
				}, {
					duration: 100 + i * 20
				});
			}
			// Add impact effect at enemy position
			var impactEffect = self.addChild(LK.getAsset('routeEffect', {
				anchorX: 0.5,
				anchorY: 0.5,
				alpha: 0,
				scaleX: 0.5,
				scaleY: 0.5
			}));
			impactEffect.x = enemy.x;
			impactEffect.y = enemy.y;
			self.routePoints.push(impactEffect);
			// Animate impact effect
			tween(impactEffect, {
				alpha: 1,
				scaleX: 3,
				scaleY: 3
			}, {
				duration: 300,
				easing: tween.easeOut
			});
			// Remove route after 0.5 seconds
			LK.setTimeout(function () {
				self.destroy();
				// Remove from routeEffects array
				for (var i = routeEffects.length - 1; i >= 0; i--) {
					if (routeEffects[i] === self) {
						routeEffects.splice(i, 1);
						break;
					}
				}
			}, 500);
		}
	};
	self.clearRoute = function () {
		for (var i = self.routePoints.length - 1; i >= 0; i--) {
			self.routePoints[i].destroy();
		}
		self.routePoints = [];
	};
	self.fadeOut = function () {
		for (var i = 0; i < self.routePoints.length; i++) {
			tween(self.routePoints[i], {
				alpha: 0,
				scaleX: 0.1,
				scaleY: 0.1
			}, {
				duration: 200
			});
		}
		LK.setTimeout(function () {
			self.destroy();
		}, 300);
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x2c3e50
});

/**** 
* Game Code
****/ 
// Game variables
var hero;
var enemies = [];
var coins = [];
var powerups = [];
var enemyWarnings = [];
var knives = [];
var knivesRemaining = 5;
var routeEffects = [];
var currentLevel = 1;
var levelComplete = false;
var hearts = [];
// Movement state tracking
var movementState = {
	left: false,
	right: false,
	up: false,
	down: false
};
// Camera system
var camera = {
	x: 0,
	y: 0,
	targetX: 0,
	targetY: 0,
	smoothing: 0.1
};
// Level configuration
var levels = [{
	enemies: [{
		type: 'basic',
		count: 3
	}],
	width: 4096,
	height: 2732
}, {
	enemies: [{
		type: 'basic',
		count: 5
	}, {
		type: 'strong',
		count: 2
	}],
	width: 5120,
	height: 2732
}, {
	enemies: [{
		type: 'basic',
		count: 7
	}, {
		type: 'strong',
		count: 3
	}, {
		type: 'fast',
		count: 2
	}],
	width: 6144,
	height: 2732
}];
var currentLevelData = levels[0];
// UI Elements
var scoreText = new Text2('Score: 0', {
	size: 80,
	fill: 0xFFFFFF
});
scoreText.anchor.set(0, 0);
scoreText.x = 150;
scoreText.y = 50;
LK.gui.topLeft.addChild(scoreText);
var levelText = new Text2('Level: 1', {
	size: 80,
	fill: 0xFFFFFF
});
levelText.anchor.set(0.5, 0);
LK.gui.top.addChild(levelText);
levelText.y = 50;
var comboText = new Text2('Combo: 0x', {
	size: 60,
	fill: 0xFFFF00
});
comboText.anchor.set(1, 0);
LK.gui.topRight.addChild(comboText);
comboText.x = -50;
comboText.y = 120;
var knivesText = new Text2('Knives: 5', {
	size: 60,
	fill: 0x8e44ad
});
knivesText.anchor.set(1, 0);
LK.gui.topRight.addChild(knivesText);
knivesText.x = -50;
knivesText.y = 190;
// Create movement and attack buttons
var leftButton = LK.getAsset('leftButton', {
	anchorX: 0.5,
	anchorY: 0.5,
	alpha: 0.8
});
leftButton.x = 120;
leftButton.y = -250;
LK.gui.bottomLeft.addChild(leftButton);
var rightButton = LK.getAsset('rightButton', {
	anchorX: 0.5,
	anchorY: 0.5,
	alpha: 0.8
});
rightButton.x = 400;
rightButton.y = -250;
LK.gui.bottomLeft.addChild(rightButton);
var upButton = LK.getAsset('upButton', {
	anchorX: 0.5,
	anchorY: 0.5,
	alpha: 0.8
});
upButton.x = 260;
upButton.y = -380;
LK.gui.bottomLeft.addChild(upButton);
var downButton = LK.getAsset('downButton', {
	anchorX: 0.5,
	anchorY: 0.5,
	alpha: 0.8
});
downButton.x = 260;
downButton.y = -120;
LK.gui.bottomLeft.addChild(downButton);
var attackButton = LK.getAsset('attackButton', {
	anchorX: 0.5,
	anchorY: 0.5,
	alpha: 0.9
});
attackButton.x = -150;
attackButton.y = -200;
LK.gui.bottomRight.addChild(attackButton);
var knifeButton = LK.getAsset('knifeButton', {
	anchorX: 0.5,
	anchorY: 0.5,
	alpha: 0.9
});
knifeButton.x = -350;
knifeButton.y = -200;
LK.gui.bottomRight.addChild(knifeButton);
// Create hero
hero = game.addChild(new Hero());
hero.x = 1024; // Center of screen
hero.y = 2200; // Near bottom
// Create health display
function updateHealthDisplay() {
	// Remove existing hearts
	for (var i = hearts.length - 1; i >= 0; i--) {
		hearts[i].destroy();
	}
	hearts = [];
	// Create new hearts
	for (var i = 0; i < hero.health; i++) {
		var heart = LK.getAsset('heart', {
			anchorX: 0.5,
			anchorY: 0.5
		});
		heart.x = 200 + i * 80;
		heart.y = 200;
		LK.gui.topLeft.addChild(heart);
		hearts.push(heart);
	}
}
function updateScoreDisplay() {
	scoreText.setText('Score: ' + LK.getScore());
	var comboMultiplier = Math.floor(hero.comboCount / 5) + 1;
	comboText.setText('Combo: ' + comboMultiplier + 'x');
}
function updateKnivesDisplay() {
	knivesText.setText('Knives: ' + knivesRemaining);
	// Update button alpha based on availability
	knifeButton.alpha = knivesRemaining > 0 ? 0.9 : 0.3;
}
function initializeLevel() {
	// Clear existing enemies
	for (var i = enemies.length - 1; i >= 0; i--) {
		enemies[i].destroy();
	}
	enemies = [];
	// Clear existing warnings
	for (var i = enemyWarnings.length - 1; i >= 0; i--) {
		enemyWarnings[i].destroy();
	}
	enemyWarnings = [];
	// Clear existing knives
	for (var i = knives.length - 1; i >= 0; i--) {
		knives[i].destroy();
	}
	knives = [];
	// Clear existing route effects
	for (var i = routeEffects.length - 1; i >= 0; i--) {
		routeEffects[i].destroy();
	}
	routeEffects = [];
	// Reset knife count
	knivesRemaining = 5;
	currentLevelData = levels[currentLevel - 1] || levels[levels.length - 1];
	levelComplete = false;
	// Spawn enemies for this level
	for (var j = 0; j < currentLevelData.enemies.length; j++) {
		var enemyGroup = currentLevelData.enemies[j];
		for (var k = 0; k < enemyGroup.count; k++) {
			spawnEnemy(enemyGroup.type);
		}
	}
	levelText.setText('Level: ' + currentLevel);
	updateKnivesDisplay();
}
function spawnEnemy(type) {
	var enemy = game.addChild(new Enemy());
	// Random spawn position within level bounds
	enemy.x = 200 + Math.random() * (currentLevelData.width - 400);
	enemy.y = 1900 + Math.random() * 200;
	// Set enemy properties based on type
	if (type === 'basic') {
		enemy.health = 2;
		enemy.speed = 1;
	} else if (type === 'strong') {
		enemy.health = 4;
		enemy.speed = 0.8;
		enemy.getChildAt(0).tint = 0x8b4513; // Brown tint
	} else if (type === 'fast') {
		enemy.health = 1;
		enemy.speed = 2;
		enemy.getChildAt(0).tint = 0x00ff00; // Green tint
	}
	enemies.push(enemy);
}
function spawnPowerUp() {
	var powerup = game.addChild(new PowerUp());
	powerup.x = 500 + Math.random() * 1048; // Random x position
	powerup.y = 2000; // Above ground level
	// Random powerup type
	var types = ['health', 'invulnerable', 'damage'];
	powerup.type = types[Math.floor(Math.random() * types.length)];
	// Color by type
	var powerupGraphics = powerup.getChildAt(0);
	if (powerup.type === 'health') {
		powerupGraphics.tint = 0x00ff00; // Green
	} else if (powerup.type === 'invulnerable') {
		powerupGraphics.tint = 0x0088ff; // Blue
	} else if (powerup.type === 'damage') {
		powerupGraphics.tint = 0xff8800; // Orange
	}
	powerups.push(powerup);
}
function findNearestEnemy(x, y) {
	var nearest = null;
	var shortestDistance = Infinity;
	for (var i = 0; i < enemies.length; i++) {
		var enemy = enemies[i];
		var distance = Math.sqrt(Math.pow(enemy.x - x, 2) + Math.pow(enemy.y - y, 2));
		if (distance < shortestDistance) {
			shortestDistance = distance;
			nearest = enemy;
		}
	}
	return nearest;
}
function updateEnemyWarnings() {
	// Remove warnings for dead enemies
	for (var i = enemyWarnings.length - 1; i >= 0; i--) {
		var warning = enemyWarnings[i];
		var enemyExists = false;
		for (var j = 0; j < enemies.length; j++) {
			if (enemies[j] === warning.targetEnemy) {
				enemyExists = true;
				break;
			}
		}
		if (!enemyExists) {
			warning.destroy();
			enemyWarnings.splice(i, 1);
		}
	}
	// Create warnings for new enemies
	for (var i = 0; i < enemies.length; i++) {
		var enemy = enemies[i];
		var hasWarning = false;
		for (var j = 0; j < enemyWarnings.length; j++) {
			if (enemyWarnings[j].targetEnemy === enemy) {
				hasWarning = true;
				break;
			}
		}
		if (!hasWarning) {
			var warning = LK.gui.center.addChild(new EnemyWarning());
			warning.targetEnemy = enemy;
			warning.setDirection('left');
			enemyWarnings.push(warning);
		}
	}
}
// Initialize UI
updateHealthDisplay();
updateScoreDisplay();
updateKnivesDisplay();
// Initialize first level
initializeLevel();
// Set initial camera position
camera.targetX = hero.x - 1024;
camera.targetY = hero.y - 1366;
camera.x = camera.targetX;
camera.y = camera.targetY;
// Button event handlers
leftButton.down = function (x, y, obj) {
	movementState.left = true;
};
leftButton.up = function (x, y, obj) {
	movementState.left = false;
};
rightButton.down = function (x, y, obj) {
	movementState.right = true;
};
rightButton.up = function (x, y, obj) {
	movementState.right = false;
};
upButton.down = function (x, y, obj) {
	movementState.up = true;
};
upButton.up = function (x, y, obj) {
	movementState.up = false;
};
downButton.down = function (x, y, obj) {
	movementState.down = true;
};
downButton.up = function (x, y, obj) {
	movementState.down = false;
};
attackButton.down = function (x, y, obj) {
	if (!hero.isAttacking) {
		var nearestEnemy = findNearestEnemy(hero.x, hero.y);
		if (nearestEnemy) {
			hero.attack(nearestEnemy.x);
			// Check if attack hits with increased range
			var distanceToEnemy = Math.sqrt(Math.pow(hero.x - nearestEnemy.x, 2) + Math.pow(hero.y - nearestEnemy.y, 2));
			if (distanceToEnemy < 250) {
				// Increased from 150 to 250
				var damage = hero.damageBoost ? 2 : 1;
				for (var i = 0; i < damage; i++) {
					nearestEnemy.takeDamage();
				}
			}
		} else {
			// Attack in hero's facing direction
			hero.attack(hero.x + (hero.getChildAt(0).scaleX > 0 ? 100 : -100));
		}
	}
};
knifeButton.down = function (x, y, obj) {
	if (knivesRemaining > 0) {
		// Find nearest enemy for targeting
		var nearestEnemy = findNearestEnemy(hero.x, hero.y);
		if (nearestEnemy) {
			// Clear existing route effects before creating new one
			for (var i = routeEffects.length - 1; i >= 0; i--) {
				routeEffects[i].destroy();
				routeEffects.splice(i, 1);
			}
			// Create route visualization
			var routeEffect = game.addChild(new RouteEffect());
			routeEffect.createRoute(nearestEnemy);
			routeEffects.push(routeEffect);
			// Throw knife toward enemy center
			var knife = game.addChild(new Knife());
			knife.x = hero.x;
			knife.y = hero.y - 80;
			// Calculate direction to enemy center
			var dx = nearestEnemy.x - hero.x;
			var dy = nearestEnemy.y - hero.y;
			var distance = Math.sqrt(dx * dx + dy * dy);
			if (distance > 0) {
				// Set knife velocity toward enemy
				knife.velocityX = dx / distance * knife.speed;
				knife.velocityY = dy / distance * knife.speed;
				// Face the direction of movement
				knife.getChildAt(0).scaleX = dx > 0 ? 1 : -1;
			} else {
				// Fallback to hero facing direction
				var heroGraphics = hero.getChildAt(0);
				knife.direction = heroGraphics.scaleX > 0 ? 1 : -1;
				knife.getChildAt(0).scaleX = knife.direction;
			}
			knives.push(knife);
			knivesRemaining--;
			updateKnivesDisplay();
			LK.getSound('knifeThrow').play();
		} else {
			// No enemy found, throw in hero facing direction
			var knife = game.addChild(new Knife());
			knife.x = hero.x;
			knife.y = hero.y - 80;
			var heroGraphics = hero.getChildAt(0);
			knife.direction = heroGraphics.scaleX > 0 ? 1 : -1;
			knife.getChildAt(0).scaleX = knife.direction;
			knives.push(knife);
			knivesRemaining--;
			updateKnivesDisplay();
			LK.getSound('knifeThrow').play();
		}
	}
};
// Game input (fallback for screen taps outside buttons)
game.down = function (x, y, obj) {
	// Convert screen coordinates to world coordinates
	var worldX = x + camera.x;
	var worldY = y + camera.y;
	// Check if tap is for movement or attack
	var distanceToHero = Math.sqrt(Math.pow(worldX - hero.x, 2) + Math.pow(worldY - hero.y, 2));
	if (distanceToHero > 200) {
		// Movement - move toward tap position
		var dx = worldX - hero.x;
		var dy = worldY - hero.y;
		if (Math.abs(dx) > Math.abs(dy)) {
			hero.move(dx > 0 ? 'right' : 'left');
		} else {
			hero.move(dy > 0 ? 'down' : 'up');
		}
	} else {
		// Attack
		if (!hero.isAttacking) {
			var nearestEnemy = findNearestEnemy(worldX, worldY);
			if (nearestEnemy) {
				hero.attack(nearestEnemy.x);
				// Check if attack hits with increased range
				var distanceToEnemy = Math.sqrt(Math.pow(hero.x - nearestEnemy.x, 2) + Math.pow(hero.y - nearestEnemy.y, 2));
				if (distanceToEnemy < 250) {
					// Increased from 150 to 250
					var damage = hero.damageBoost ? 2 : 1;
					for (var i = 0; i < damage; i++) {
						nearestEnemy.takeDamage();
					}
				}
			} else {
				// Attack in direction of tap
				hero.attack(worldX);
			}
		}
	}
};
// Main game loop
game.update = function () {
	// Handle continuous movement based on button states
	if (movementState.left) {
		hero.move('left');
	}
	if (movementState.right) {
		hero.move('right');
	}
	if (movementState.up) {
		hero.move('up');
	}
	if (movementState.down) {
		hero.move('down');
	}
	// Update camera position smoothly
	camera.x += (camera.targetX - camera.x) * camera.smoothing;
	camera.y += (camera.targetY - camera.y) * camera.smoothing;
	// Apply camera position to game
	game.x = -camera.x;
	game.y = -camera.y;
	// Update all game objects
	for (var i = enemies.length - 1; i >= 0; i--) {
		var enemy = enemies[i];
		enemy.update();
	}
	for (var i = coins.length - 1; i >= 0; i--) {
		coins[i].update();
	}
	for (var i = powerups.length - 1; i >= 0; i--) {
		powerups[i].update();
	}
	for (var i = knives.length - 1; i >= 0; i--) {
		knives[i].update();
	}
	// Clean up destroyed route effects
	for (var i = routeEffects.length - 1; i >= 0; i--) {
		var routeEffect = routeEffects[i];
		if (!routeEffect.parent) {
			routeEffects.splice(i, 1);
		}
	}
	// Update enemy warnings
	updateEnemyWarnings();
	for (var i = 0; i < enemyWarnings.length; i++) {
		enemyWarnings[i].update();
	}
	// Check for level completion
	if (!levelComplete && enemies.length === 0) {
		levelComplete = true;
		currentLevel++;
		if (currentLevel <= levels.length) {
			// Start next level after delay
			LK.setTimeout(function () {
				initializeLevel();
			}, 2000);
		} else {
			// Game completed
			LK.showYouWin();
		}
	}
};