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

/**** 
* Classes
****/ 
// Chest class
var Chest = Container.expand(function () {
	var self = Container.call(this);
	// Attach chest asset (brown box)
	var chestSprite = self.attachAsset('chest', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.width = chestSprite.width;
	self.height = chestSprite.height;
	self.opened = false;
	return self;
});
// Door class (for next room)
var Door = Container.expand(function () {
	var self = Container.call(this);
	// Attach door asset (purple box)
	var doorSprite = self.attachAsset('door', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.width = doorSprite.width;
	self.height = doorSprite.height;
	return self;
});
// Hero class
var Hero = Container.expand(function () {
	var self = Container.call(this);
	// Attach hero asset (red box)
	var heroSprite = self.attachAsset('hero', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.width = heroSprite.width;
	self.height = heroSprite.height;
	// Attach sword to hero
	var swordSprite = self.attachAsset('sword', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	swordSprite.x = -heroSprite.width * 0.3; // Position sword to the left of hero
	swordSprite.y = 0; // Center vertically with hero
	swordSprite.rotation = -Math.PI / 4; // Angle the sword pointing left
	// Hero stats
	self.maxHealth = 3;
	self.health = self.maxHealth;
	self.invincible = false;
	self.invincibleTimer = 0;
	// Create health bar above character
	// Health bar border (white outline)
	self.healthBarBorder = LK.getAsset('trap', {
		width: 200,
		height: 40,
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.healthBarBorder.tint = 0xFFFFFF; // White border
	self.healthBarBorder.x = 0;
	self.healthBarBorder.y = -heroSprite.height / 2 - 50; // Position above character
	self.addChild(self.healthBarBorder);
	// Health bar background (dark)
	self.healthBarBackground = LK.getAsset('trap', {
		width: 180,
		height: 24,
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.healthBarBackground.tint = 0x222222; // Dark gray background
	self.healthBarBackground.x = 0;
	self.healthBarBackground.y = -heroSprite.height / 2 - 50; // Position above character
	self.addChild(self.healthBarBackground);
	// Health bar fill (green to red gradient)
	self.healthBarFill = LK.getAsset('trap', {
		width: 180,
		height: 24,
		anchorX: 0.0,
		anchorY: 0.5
	});
	self.healthBarFill.tint = 0x00FF00; // Green for full health
	self.healthBarFill.x = -90; // Left-aligned within background
	self.healthBarFill.y = -heroSprite.height / 2 - 50; // Position above character
	self.addChild(self.healthBarFill);
	// Update health bar display
	self.updateHealthBar = function () {
		var healthPercent = self.health / self.maxHealth;
		self.healthBarFill.scaleX = healthPercent;
		// Smooth color transition based on health percentage
		if (healthPercent > 0.75) {
			self.healthBarFill.tint = 0x00FF00; // Bright green
		} else if (healthPercent > 0.5) {
			self.healthBarFill.tint = 0x7FFF00; // Yellow-green
		} else if (healthPercent > 0.25) {
			self.healthBarFill.tint = 0xFFFF00; // Yellow
		} else if (healthPercent > 0.1) {
			self.healthBarFill.tint = 0xFF7F00; // Orange
		} else {
			self.healthBarFill.tint = 0xFF0000; // Red
		}
		// Add pulsing effect when health is critical
		if (healthPercent <= 0.25) {
			tween(self.healthBarFill, {
				alpha: 0.5
			}, {
				duration: 500,
				loop: true,
				pingpong: true
			});
		} else {
			tween.stop(self.healthBarFill, {
				alpha: true
			});
			self.healthBarFill.alpha = 1.0;
		}
	};
	// Initialize health bar
	self.updateHealthBar();
	// Flash when hit
	self.flash = function () {
		tween(heroSprite, {
			tint: 0xffffff
		}, {
			duration: 100,
			onFinish: function onFinish() {
				tween(heroSprite, {
					tint: 0xd83318
				}, {
					duration: 200
				});
			}
		});
	};
	// Take damage
	self.takeDamage = function () {
		if (self.invincible) return;
		self.health -= 1;
		self.flash();
		self.invincible = true;
		self.invincibleTimer = 60; // 1 second at 60fps
		LK.effects.flashObject(self, 0xff0000, 300);
		self.updateHealthBar();
		// Create blood flow effect
		for (var b = 0; b < 8; b++) {
			var bloodDrop = LK.getAsset('trap', {
				width: 12 + Math.random() * 8,
				height: 12 + Math.random() * 8,
				anchorX: 0.5,
				anchorY: 0.5
			});
			bloodDrop.tint = 0xAA0000; // Dark red blood color
			bloodDrop.x = self.x + (Math.random() - 0.5) * 60; // Random spread around hero
			bloodDrop.y = self.y + (Math.random() - 0.5) * 40;
			bloodDrop.alpha = 0.8 + Math.random() * 0.2;
			game.addChild(bloodDrop);
			// Animate blood drop falling and fading
			var fallDistance = 80 + Math.random() * 120;
			var fallDuration = 800 + Math.random() * 400;
			tween(bloodDrop, {
				y: bloodDrop.y + fallDistance,
				alpha: 0,
				scaleX: 0.3,
				scaleY: 0.3
			}, {
				duration: fallDuration,
				easing: tween.easeIn,
				onFinish: function onFinish() {
					bloodDrop.destroy();
				}
			});
		}
		if (self.health <= 0) {
			LK.effects.flashScreen(0xff0000, 800);
			// Create dungeon-themed game over overlay
			var dungeonGameOverOverlay = new Container();
			dungeonGameOverOverlay.zIndex = 10000; // ensure on top
			// Dark background
			var background = LK.getAsset('trap', {
				width: 2048,
				height: 2732,
				anchorX: 0,
				anchorY: 0,
				x: 0,
				y: 0
			});
			background.tint = 0x000000;
			background.alpha = 0.8;
			dungeonGameOverOverlay.addChild(background);
			// Main message
			var gameOverText = new Text2("You couldn't pass the dungeon...", {
				size: 120,
				fill: 0xFF4444,
				font: "Impact, Arial Black, Tahoma"
			});
			gameOverText.anchor.set(0.5, 0.5);
			gameOverText.x = 2048 / 2;
			gameOverText.y = 1200;
			dungeonGameOverOverlay.addChild(gameOverText);
			// Subtitle
			var subtitleText = new Text2("The darkness consumed you in Room " + currentRoom, {
				size: 80,
				fill: 0x888888
			});
			subtitleText.anchor.set(0.5, 0.5);
			subtitleText.x = 2048 / 2;
			subtitleText.y = 1400;
			dungeonGameOverOverlay.addChild(subtitleText);
			// Score display
			var finalScoreText = new Text2("Monsters Defeated: " + monstersDefeated, {
				size: 70,
				fill: 0xFFFF88
			});
			finalScoreText.anchor.set(0.5, 0.5);
			finalScoreText.x = 2048 / 2;
			finalScoreText.y = 1600;
			dungeonGameOverOverlay.addChild(finalScoreText);
			game.addChild(dungeonGameOverOverlay);
			// Auto restart after 3 seconds
			LK.setTimeout(function () {
				LK.showGameOver();
			}, 3000);
		}
	};
	// Heal
	self.heal = function () {
		if (self.health < self.maxHealth) {
			self.health += 1;
			self.updateHealthBar();
			LK.effects.flashObject(self, 0x83de44, 300);
		}
	};
	// Called every tick
	self.update = function () {
		if (self.invincible) {
			self.invincibleTimer--;
			if (self.invincibleTimer <= 0) {
				self.invincible = false;
			}
		}
	};
	return self;
});
/**** 
* Asset Initialization
****/ 
// Hero: red box
// Monster: green ellipse
// Trap: yellow box
// Treasure: blue ellipse
// Door: purple box
// Key class
var Key = Container.expand(function () {
	var self = Container.call(this);
	// Attach key asset (gold ellipse)
	var keySprite = self.attachAsset('key', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.width = keySprite.width;
	self.height = keySprite.height;
	return self;
});
// Monster class
var Monster = Container.expand(function () {
	var self = Container.call(this);
	// Attach monster asset (green ellipse)
	var monsterSprite = self.attachAsset('monster', {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 1.2,
		scaleY: 1.2
	});
	// Set larger hitbox for easier collision detection
	self.width = monsterSprite.width * 0.4;
	self.height = monsterSprite.height * 0.4;
	// Monster health system
	self.maxHealth = 1;
	self.health = self.maxHealth;
	// Create heart-based health display
	self.hearts = [];
	var heartSize = 30;
	var heartSpacing = 35;
	var totalHeartsWidth = (self.maxHealth - 1) * heartSpacing + heartSize;
	var startX = -totalHeartsWidth / 2;
	for (var h = 0; h < self.maxHealth; h++) {
		var heart = LK.getAsset('trap', {
			width: heartSize,
			height: heartSize,
			anchorX: 0.5,
			anchorY: 0.5
		});
		heart.tint = 0xFF1744; // Red heart color
		heart.x = startX + h * heartSpacing;
		heart.y = -monsterSprite.height / 2 - 40; // Position above monster
		self.addChild(heart);
		self.hearts.push(heart);
	}
	// Update heart display
	self.updateHealthBar = function () {
		// Update heart visibility based on current health
		for (var h = 0; h < self.hearts.length; h++) {
			if (h < self.health) {
				self.hearts[h].visible = true;
				self.hearts[h].tint = 0xFF1744; // Red for full hearts
				self.hearts[h].alpha = 1.0;
			} else {
				self.hearts[h].visible = true;
				self.hearts[h].tint = 0x444444; // Dark gray for empty hearts
				self.hearts[h].alpha = 0.5;
			}
		}
	};
	// Initialize heart display
	self.updateHealthBar();
	// Take damage function with animation
	self.takeDamage = function () {
		self.health -= 1;
		self.updateHealthBar();
		// Flash damage animation
		tween(monsterSprite, {
			tint: 0xFF0000
		}, {
			duration: 150,
			onFinish: function onFinish() {
				tween(monsterSprite, {
					tint: 0xFFFFFF
				}, {
					duration: 200
				});
			}
		});
		// Shake animation
		var originalX = self.x;
		tween(self, {
			x: originalX + 15
		}, {
			duration: 50,
			onFinish: function onFinish() {
				tween(self, {
					x: originalX - 15
				}, {
					duration: 50,
					onFinish: function onFinish() {
						tween(self, {
							x: originalX
						}, {
							duration: 50
						});
					}
				});
			}
		});
	};
	// Movement direction
	self.vx = 0;
	self.vy = 0;
	self.speed = 1 + Math.random() * 1;
	// Set random direction
	self.setRandomDirection = function () {
		var angle = Math.random() * Math.PI * 2;
		self.vx = Math.cos(angle) * self.speed;
		self.vy = Math.sin(angle) * self.speed;
	};
	self.setRandomDirection();
	// Called every tick
	self.update = function () {
		// Don't move if game is frozen
		if (gameFrozen) {
			return;
		}
		// Check if hero is close to this monster (within encounter distance)
		var dx = hero.x - self.x;
		var dy = hero.y - self.y;
		var distToHero = Math.sqrt(dx * dx + dy * dy);
		// If hero is within encounter distance, trigger freeze and stop moving
		if (distToHero < 200) {
			if (!gameFrozen) {
				// Trigger freeze effect
				gameFrozen = true;
				freezeTimer = FREEZE_DURATION;
				// Apply freeze visual effect to all characters
				tween(hero, {
					tint: 0x8888ff
				}, {
					duration: 300
				});
				tween(self, {
					tint: 0x8888ff
				}, {
					duration: 300
				});
				for (var m = 0; m < monsters.length; m++) {
					if (monsters[m] !== self) {
						tween(monsters[m], {
							tint: 0x8888ff
						}, {
							duration: 300
						});
					}
				}
			}
			// Monster stays still when encountering hero
			return;
		}
		self.x += self.vx;
		self.y += self.vy;
		// Bounce off room walls
		if (self.x < roomBounds.x + self.width / 2) {
			self.x = roomBounds.x + self.width / 2;
			self.vx *= -1;
		}
		if (self.x > roomBounds.x + roomBounds.width - self.width / 2) {
			self.x = roomBounds.x + roomBounds.width - self.width / 2;
			self.vx *= -1;
		}
		if (self.y < roomBounds.y + self.height / 2) {
			self.y = roomBounds.y + self.height / 2;
			self.vy *= -1;
		}
		if (self.y > roomBounds.y + roomBounds.height - self.height / 2) {
			self.y = roomBounds.y + roomBounds.height - self.height / 2;
			self.vy *= -1;
		}
	};
	return self;
});

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

/**** 
* Game Code
****/ 
// Tween plugin for animations
// --- Start Screen Overlay ---
var startScreenOverlay = new Container();
startScreenOverlay.zIndex = 10000; // ensure on top
// Title
var titleText = new Text2("Dungeon Dash", {
	size: 180,
	fill: "#fff",
	font: "Impact, Arial Black, Tahoma"
});
titleText.anchor.set(0.5, 0.5);
titleText.x = 2048 / 2;
titleText.y = 900;
startScreenOverlay.addChild(titleText);
// Subtitle
var subtitleText = new Text2("Drag or tap to move. Collect treasures. Avoid monsters & traps!", {
	size: 70,
	fill: 0xB8B031
});
subtitleText.anchor.set(0.5, 0.5);
subtitleText.x = 2048 / 2;
subtitleText.y = 1100;
startScreenOverlay.addChild(subtitleText);
// Play Button
var playBtnWidth = 600;
var playBtnHeight = 180;
var playBtn = LK.getAsset('door', {
	width: playBtnWidth,
	height: playBtnHeight,
	anchorX: 0.5,
	anchorY: 0.5,
	x: 2048 / 2,
	y: 1500
});
startScreenOverlay.addChild(playBtn);
var playBtnText = new Text2("PLAY", {
	size: 120,
	fill: "#fff",
	font: "Impact, Arial Black, Tahoma"
});
playBtnText.anchor.set(0.5, 0.5);
playBtnText.x = 2048 / 2;
playBtnText.y = 1500;
startScreenOverlay.addChild(playBtnText);
// Add overlay to game
game.addChild(startScreenOverlay);
// Block game input until started
var gameStarted = false;
// Start game handler
function startGame() {
	if (gameStarted) return;
	gameStarted = true;
	startScreenOverlay.visible = false;
}
// Listen for tap/click on play button
startScreenOverlay.down = function (x, y, obj) {
	// Check if tap is inside play button
	var local = playBtn.toLocal(startScreenOverlay.toGlobal({
		x: x,
		y: y
	}));
	if (local.x > -playBtnWidth / 2 && local.x < playBtnWidth / 2 && local.y > -playBtnHeight / 2 && local.y < playBtnHeight / 2) {
		startGame();
	}
};
// Intercept all input until game started
var oldGameDown = game.down;
game.down = function (x, y, obj) {
	if (!gameStarted) {
		if (typeof startScreenOverlay.down === "function") startScreenOverlay.down(x, y, obj);
		return;
	}
	if (typeof oldGameDown === "function") oldGameDown(x, y, obj);
};
var oldGameMove = game.move;
game.move = function (x, y, obj) {
	if (!gameStarted) return;
	if (typeof oldGameMove === "function") oldGameMove(x, y, obj);
};
var oldGameUp = game.up;
game.up = function (x, y, obj) {
	if (!gameStarted) return;
	if (typeof oldGameUp === "function") oldGameUp(x, y, obj);
};
// Room bounds (centered, with margin)
var roomMargin = 120;
var roomBounds = {
	x: roomMargin,
	y: roomMargin + 100,
	// leave top 100px for menu
	width: 2048 - roomMargin * 2,
	height: 2732 - roomMargin * 2 - 100
};
// Game state
var hero;
var monsters = [];
var door;
var keys = [];
var chests = [];
var hasKey = false;
var draggingHero = false;
var lastMoveX = 0,
	lastMoveY = 0;
var currentRoom = 1;
var maxRooms = 5;
var monstersDefeated = 0;
var roomCleared = false;
var gameFrozen = false;
var freezeTimer = 0;
var FREEZE_DURATION = 120; // 2 seconds at 60fps
// GUI elements
var scoreTxt = new Text2('Score: 0', {
	size: 90,
	fill: "#fff"
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
// Helper to update health display - now updates the health bar on the character
function updateHealthDisplay() {
	// This will be handled by the health bar on the character
}
// Helper to update score display
function updateScoreDisplay() {
	var score = monstersDefeated * 5;
	scoreTxt.setText('Score: ' + score);
}
// Helper to clear room
function clearRoom() {
	for (var i = 0; i < monsters.length; i++) monsters[i].destroy();
	for (var i = 0; i < keys.length; i++) keys[i].destroy();
	for (var i = 0; i < chests.length; i++) chests[i].destroy();
	monsters = [];
	keys = [];
	chests = [];
	if (door) {
		door.destroy();
		door = null;
	}
	roomCleared = false;
	hasKey = false;
}
// Helper to generate a room
function generateRoom(roomNum) {
	clearRoom();
	// Place hero at entrance (bottom center)
	hero.x = roomBounds.x + roomBounds.width / 2;
	hero.y = roomBounds.y + roomBounds.height - hero.height;
	// Helper function to check if position is safe from hero spawn area
	function isPositionSafeFromHeroSpawn(x, y, heroStartX, heroStartY, safeDistance) {
		var dx = x - heroStartX;
		var dy = y - heroStartY;
		var dist = Math.sqrt(dx * dx + dy * dy);
		return dist > safeDistance;
	}
	// Place monsters
	var monsterCount = 2 + roomNum;
	var heroStartX = roomBounds.x + roomBounds.width / 2;
	var heroStartY = roomBounds.y + roomBounds.height - hero.height;
	var heroSafeDistance = 400; // Increased safe distance around hero spawn
	for (var i = 0; i < monsterCount; i++) {
		var m = new Monster();
		var validPosition = false;
		var attempts = 0;
		// Try to find a position that's not too close to hero spawn
		while (!validPosition && attempts < 50) {
			m.x = roomBounds.x + 100 + Math.random() * (roomBounds.width - 200);
			m.y = roomBounds.y + 200 + Math.random() * (roomBounds.height - 400);
			if (isPositionSafeFromHeroSpawn(m.x, m.y, heroStartX, heroStartY, heroSafeDistance)) {
				validPosition = true;
			}
			attempts++;
		}
		monsters.push(m);
		game.addChild(m);
	}
	// Key will come from chest after killing all monsters, so don't place it randomly
	// Place chest (always one per room)
	var c = new Chest();
	var validPosition = false;
	var attempts = 0;
	while (!validPosition && attempts < 50) {
		c.x = roomBounds.x + 100 + Math.random() * (roomBounds.width - 200);
		c.y = roomBounds.y + 200 + Math.random() * (roomBounds.height - 400);
		if (isPositionSafeFromHeroSpawn(c.x, c.y, heroStartX, heroStartY, heroSafeDistance)) {
			validPosition = true;
		}
		attempts++;
	}
	chests.push(c);
	game.addChild(c);
	// Place door (top center)
	door = new Door();
	door.x = roomBounds.x + roomBounds.width / 2;
	door.y = roomBounds.y + door.height / 2;
	game.addChild(door);
	door.visible = false; // Only show when room is cleared
	roomCleared = false;
}
// Create hero
hero = new Hero();
game.addChild(hero);
// Start first room
generateRoom(currentRoom);
updateScoreDisplay();
// Dragging logic
game.down = function (x, y, obj) {
	// Only start drag if touch is on hero
	var local = hero.toLocal(game.toGlobal({
		x: x,
		y: y
	}));
	if (local.x > -hero.width / 2 && local.x < hero.width / 2 && local.y > -hero.height / 2 && local.y < hero.height / 2) {
		draggingHero = true;
		lastMoveX = x;
		lastMoveY = y;
	}
};
game.up = function (x, y, obj) {
	draggingHero = false;
};
function clamp(val, min, max) {
	return Math.max(min, Math.min(max, val));
}
// Walk-to destination variables
var walkToActive = false;
var walkToX = 0;
var walkToY = 0;
var walkToSpeed = 22;
// Kill button for attacking monsters
var killButton = LK.getAsset('trap', {
	width: 200,
	height: 200,
	anchorX: 0.5,
	anchorY: 0.5,
	x: 2048 - 150,
	y: 2732 - 150
});
game.addChild(killButton);
var killButtonText = new Text2("KILL", {
	size: 60,
	fill: "#fff",
	font: "Impact, Arial Black, Tahoma"
});
killButtonText.anchor.set(0.5, 0.5);
killButtonText.x = 2048 - 150;
killButtonText.y = 2732 - 150;
game.addChild(killButtonText);
// Open chest text
var openChestText = new Text2("OPEN CHEST", {
	size: 80,
	fill: 0xFFD700,
	font: "Impact, Arial Black, Tahoma"
});
openChestText.anchor.set(0.5, 0.5);
openChestText.x = 2048 / 2;
openChestText.y = 2732 - 200;
openChestText.visible = false;
game.addChild(openChestText);
// Sword swing state management
var swordSwinging = false;
var swordCooldown = 0;
var SWORD_COOLDOWN_TIME = 30; // frames (0.5 seconds at 60fps)
// Move handler
game.move = function (x, y, obj) {
	if (draggingHero) {
		// Clamp hero inside room bounds
		var hx = clamp(x, roomBounds.x + hero.width / 2, roomBounds.x + roomBounds.width - hero.width / 2);
		var hy = clamp(y, roomBounds.y + hero.height / 2, roomBounds.y + roomBounds.height - hero.height / 2);
		hero.x = hx;
		hero.y = hy;
		walkToActive = false; // Cancel walk-to if dragging
	}
};
// Tap-to-walk logic: on down, if not on hero, set walk-to destination
var oldGameDown = game.down;
game.down = function (x, y, obj) {
	// Only start drag if touch is on hero
	var local = hero.toLocal(game.toGlobal({
		x: x,
		y: y
	}));
	// Check if kill button was tapped
	var killButtonLocal = killButton.toLocal(game.toGlobal({
		x: x,
		y: y
	}));
	if (killButtonLocal.x > -killButton.width / 2 && killButtonLocal.x < killButton.width / 2 && killButtonLocal.y > -killButton.height / 2 && killButtonLocal.y < killButton.height / 2) {
		// Check if sword is available (not swinging and cooldown expired)
		if (!swordSwinging && swordCooldown <= 0) {
			// Get sword sprite from hero for animation
			var swordSprite = hero.children[1]; // Sword is the second child (index 1)
			// Stop any existing tweens on the sword
			tween.stop(swordSprite, {
				rotation: true
			});
			// Set swinging state
			swordSwinging = true;
			swordCooldown = SWORD_COOLDOWN_TIME;
			// Create sword swing effect
			var originalRotation = swordSprite.rotation;
			tween(swordSprite, {
				rotation: originalRotation + Math.PI / 2
			}, {
				duration: 150,
				easing: tween.easeOut,
				onFinish: function onFinish() {
					tween(swordSprite, {
						rotation: originalRotation
					}, {
						duration: 200,
						easing: tween.easeIn,
						onFinish: function onFinish() {
							swordSwinging = false;
						}
					});
				}
			});
			// Kill button tapped - damage all monsters within 350px of hero
			for (var i = monsters.length - 1; i >= 0; i--) {
				var m = monsters[i];
				var dx = hero.x - m.x;
				var dy = hero.y - m.y;
				var dist = Math.sqrt(dx * dx + dy * dy);
				if (dist < 350) {
					// Deal damage to monster
					m.takeDamage();
					// Optional: flash hero for feedback
					LK.effects.flashObject(hero, 0xffffff, 120);
					// Check if monster is dead
					if (m.health <= 0) {
						// Remove monster
						m.destroy();
						monsters.splice(i, 1);
						monstersDefeated++;
						updateScoreDisplay();
					}
					// Unfreeze game when monster dies
					if (gameFrozen) {
						gameFrozen = false;
						freezeTimer = 0;
						// Remove freeze visual effects
						tween(hero, {
							tint: 0xffffff
						}, {
							duration: 300
						});
						for (var j = 0; j < monsters.length; j++) {
							tween(monsters[j], {
								tint: 0xffffff
							}, {
								duration: 300
							});
						}
					}
				}
			}
		}
		return; // Don't process other touch logic
	}
	if (local.x > -hero.width / 2 && local.x < hero.width / 2 && local.y > -hero.height / 2 && local.y < hero.height / 2) {
		draggingHero = true;
		lastMoveX = x;
		lastMoveY = y;
		walkToActive = false;
	} else {
		// Set walk-to destination if tap is inside room
		var hx = clamp(x, roomBounds.x + hero.width / 2, roomBounds.x + roomBounds.width - hero.width / 2);
		var hy = clamp(y, roomBounds.y + hero.height / 2, roomBounds.y + roomBounds.height - hero.height / 2);
		walkToX = hx;
		walkToY = hy;
		walkToActive = true;
	}
	if (typeof oldGameDown === "function") oldGameDown(x, y, obj);
};
// In update, move hero toward walk-to destination if active
var oldGameUpdate = game.update;
game.update = function () {
	// Walk-to logic
	if (walkToActive && !draggingHero) {
		var dx = walkToX - hero.x;
		var dy = walkToY - hero.y;
		var dist = Math.sqrt(dx * dx + dy * dy);
		if (dist > walkToSpeed) {
			hero.x += dx / dist * walkToSpeed;
			hero.y += dy / dist * walkToSpeed;
		} else {
			hero.x = walkToX;
			hero.y = walkToY;
			walkToActive = false;
		}
	}
	if (typeof oldGameUpdate === "function") oldGameUpdate();
};
// Main update loop
game.update = function () {
	if (!gameStarted) return;
	// Handle freeze timer
	if (gameFrozen) {
		freezeTimer--;
		if (freezeTimer <= 0) {
			// Unfreeze game
			gameFrozen = false;
			// Remove freeze visual effects
			tween(hero, {
				tint: 0xffffff
			}, {
				duration: 300
			});
			for (var m = 0; m < monsters.length; m++) {
				tween(monsters[m], {
					tint: 0xffffff
				}, {
					duration: 300
				});
			}
		}
	}
	// Update sword cooldown
	if (swordCooldown > 0) {
		swordCooldown--;
	}
	// Update hero (only if not frozen)
	if (!gameFrozen) {
		hero.update();
	}
	// Update monsters
	for (var i = 0; i < monsters.length; i++) {
		monsters[i].update();
	}
	// Check if hero is close to any monster to show/hide kill button
	var nearMonster = false;
	for (var i = 0; i < monsters.length; i++) {
		var m = monsters[i];
		var dx = hero.x - m.x;
		var dy = hero.y - m.y;
		var dist = Math.sqrt(dx * dx + dy * dy);
		if (dist < 350) {
			nearMonster = true;
			break;
		}
	}
	// Show/hide kill button based on proximity
	killButton.visible = nearMonster;
	killButtonText.visible = nearMonster;
	// Check if hero is close to chest and all monsters are defeated
	var nearChest = false;
	if (monsters.length === 0) {
		for (var i = 0; i < chests.length; i++) {
			var c = chests[i];
			if (!c.opened) {
				var dx = hero.x - c.x;
				var dy = hero.y - c.y;
				var dist = Math.sqrt(dx * dx + dy * dy);
				if (dist < 200) {
					nearChest = true;
					break;
				}
			}
		}
	}
	// Show/hide open chest text based on proximity and game state
	openChestText.visible = nearChest;
	// Check collisions: hero vs monsters
	for (var i = monsters.length - 1; i >= 0; i--) {
		var m = monsters[i];
		if (hero.intersects(m)) {
			hero.takeDamage();
			// Knockback
			var dx = hero.x - m.x;
			var dy = hero.y - m.y;
			var dist = Math.sqrt(dx * dx + dy * dy) || 1;
			hero.x += dx / dist * 60;
			hero.y += dy / dist * 60;
			// Hero can only kill monsters with the kill button, not by collision
		}
	}
	// Check collisions: hero vs keys
	for (var i = keys.length - 1; i >= 0; i--) {
		var k = keys[i];
		if (hero.intersects(k)) {
			k.destroy();
			keys.splice(i, 1);
			hasKey = true;
			LK.effects.flashObject(hero, 0xFFD700, 300);
		}
	}
	// Check collisions: hero vs chests
	for (var i = 0; i < chests.length; i++) {
		var c = chests[i];
		if (hero.intersects(c) && monsters.length === 0 && !c.opened) {
			c.opened = true;
			LK.effects.flashObject(c, 0x83de44, 600);
			updateScoreDisplay();
			// Spawn key from chest after all monsters are defeated
			var k = new Key();
			k.x = c.x;
			k.y = c.y;
			keys.push(k);
			game.addChild(k);
		}
	}
	// Room clear check - need to defeat all monsters first, then open chest, then collect key
	if (!roomCleared && monsters.length === 0 && chests.length > 0 && chests[0].opened && hasKey) {
		roomCleared = true;
		door.visible = true;
		LK.effects.flashObject(door, 0x83de44, 600);
	}
	// Check hero at door to next room
	if (roomCleared && door && hero.intersects(door)) {
		// Revive hero when passing through door
		if (hero.health < hero.maxHealth) {
			hero.health = hero.maxHealth;
			hero.updateHealthBar();
			LK.effects.flashObject(hero, 0x00FF00, 500); // Green flash for healing
		}
		if (currentRoom < maxRooms) {
			currentRoom++;
			generateRoom(currentRoom);
		} else {
			// Win!
			LK.setScore(monstersDefeated * 5);
			LK.showYouWin();
		}
	}
};

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