/**** 
* Plugins
****/ 
var tween = LK.import("@upit/tween.v1");
var storage = LK.import("@upit/storage.v1", {
	level: 1,
	collectedKeys: 0,
	lives: 3
});

/**** 
* Classes
****/ 
var Explorer = Container.expand(function () {
	var self = Container.call(this);
	var explorerGraphics = self.attachAsset('explorer', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 10;
	self.isMoving = false;
	self.direction = null;
	self.targetX = 0;
	self.targetY = 0;
	self.hasKey = false;
	self.moveToward = function (x, y) {
		self.isMoving = true;
		self.targetX = x;
		self.targetY = y;
		// Calculate direction
		var dx = self.targetX - self.x;
		var dy = self.targetY - self.y;
		// Determine primary direction based on larger delta
		if (Math.abs(dx) > Math.abs(dy)) {
			self.direction = dx > 0 ? 'right' : 'left';
		} else {
			self.direction = dy > 0 ? 'down' : 'up';
		}
	};
	self.stopMoving = function () {
		self.isMoving = false;
		self.direction = null;
	};
	self.update = function () {
		if (self.isMoving) {
			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.stopMoving();
			} else {
				var ratio = self.speed / distance;
				self.x += dx * ratio;
				self.y += dy * ratio;
			}
		}
	};
	self.collectKey = function () {
		self.hasKey = true;
		tween(explorerGraphics, {
			tint: 0xFFD700
		}, {
			duration: 300,
			onFinish: function onFinish() {
				tween(explorerGraphics, {
					tint: 0xFFFFFF
				}, {
					duration: 300
				});
			}
		});
	};
	self.useKey = function () {
		self.hasKey = false;
		storage.collectedKeys++;
	};
	self.takeDamage = function () {
		LK.effects.flashObject(self, 0xFF0000, 500);
		storage.lives--;
		LK.getSound('damage').play();
		if (storage.lives <= 0) {
			LK.showGameOver();
		}
	};
	return self;
});
var FallingRock = Container.expand(function () {
	var self = Container.call(this);
	var rockGraphics = self.attachAsset('rock', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.isTriggered = false;
	self.isFalling = false;
	self.initialY = 0;
	self.fallSpeed = 0;
	self.resetTimer = 0;
	self.resetDelay = 180; // 3 seconds
	self.trigger = function () {
		if (!self.isTriggered && !self.isFalling) {
			self.isTriggered = true;
			self.fallSpeed = 2; // Start with slow fall
			// Shake before falling
			tween(rockGraphics, {
				x: 5
			}, {
				duration: 100,
				onFinish: function onFinish() {
					tween(rockGraphics, {
						x: -5
					}, {
						duration: 100,
						onFinish: function onFinish() {
							tween(rockGraphics, {
								x: 0
							}, {
								duration: 100,
								onFinish: function onFinish() {
									self.isFalling = true;
									self.isTriggered = false;
								}
							});
						}
					});
				}
			});
		}
	};
	self.reset = function () {
		self.y = self.initialY;
		self.isFalling = false;
		self.fallSpeed = 0;
		self.resetTimer = 0;
	};
	self.update = function () {
		if (self.isFalling) {
			self.fallSpeed += 0.2; // Acceleration
			self.y += self.fallSpeed;
			// Check if rock has fallen out of view
			if (self.y > 2832) {
				self.isFalling = false;
				self.resetTimer = 0;
			}
		} else if (self.y !== self.initialY) {
			// Reset timer
			self.resetTimer++;
			if (self.resetTimer >= self.resetDelay) {
				self.reset();
			}
		}
	};
	return self;
});
var Key = Container.expand(function () {
	var self = Container.call(this);
	var keyGraphics = self.attachAsset('key', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.update = function () {
		// Float animation
		keyGraphics.y = Math.sin(LK.ticks / 20) * 5;
		// Rotate slowly
		keyGraphics.rotation += 0.01;
	};
	return self;
});
var Treasure = Container.expand(function () {
	var self = Container.call(this);
	var treasureGraphics = self.attachAsset('treasure', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.isCollected = false;
	self.collect = function () {
		if (!self.isCollected) {
			self.isCollected = true;
			tween(treasureGraphics, {
				scaleX: 1.3,
				scaleY: 1.3
			}, {
				duration: 300,
				onFinish: function onFinish() {
					tween(treasureGraphics, {
						scaleX: 0,
						scaleY: 0
					}, {
						duration: 300
					});
				}
			});
			LK.setScore(LK.getScore() + 100);
			LK.getSound('collectTreasure').play();
			// Check if all treasures are collected
			var allCollected = true;
			for (var i = 0; i < treasures.length; i++) {
				if (!treasures[i].isCollected) {
					allCollected = false;
					break;
				}
			}
			if (allCollected) {
				// Level complete
				storage.level++;
				LK.showYouWin();
			}
		}
	};
	self.update = function () {
		if (!self.isCollected) {
			// Shine animation
			var glowIntensity = (Math.sin(LK.ticks / 30) + 1) / 2;
			treasureGraphics.alpha = 0.7 + glowIntensity * 0.3;
		}
	};
	return self;
});
var Wall = Container.expand(function () {
	var self = Container.call(this);
	var wallGraphics = self.attachAsset('wall', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x607D8B // Cave-like dark blue-gray
});

/**** 
* Game Code
****/ 
// Game variables
var tileSize = 100;
var gridWidth = 20;
var gridHeight = 27;
var explorer;
var walls = [];
var keys = [];
var doors = [];
var treasures = [];
var spikes = [];
var fallingRocks = [];
var levelGrid = [];
var gameStarted = false;
// UI Elements
var scoreTxt = new Text2('0', {
	size: 80,
	fill: 0xFFFFFF
});
var levelTxt = new Text2('Level: ' + storage.level, {
	size: 60,
	fill: 0xFFFFFF
});
var keysTxt = new Text2('Keys: ' + storage.collectedKeys, {
	size: 60,
	fill: 0xFFD700
});
var livesTxt = new Text2('Lives: ' + storage.lives, {
	size: 60,
	fill: 0xFF5252
});
// Initialize game
function initializeGame() {
	// Clear previous game elements
	resetGameElements();
	// Generate level based on current level
	generateLevel(storage.level);
	// Initialize explorer
	createExplorer();
	// Setup UI
	setupUI();
	// Start game
	gameStarted = true;
	// Play background music
	LK.playMusic('caveMusic', {
		fade: {
			start: 0,
			end: 0.3,
			duration: 1000
		}
	});
}
function resetGameElements() {
	// Remove all existing game elements
	for (var i = 0; i < walls.length; i++) {
		walls[i].destroy();
	}
	walls = [];
	for (var i = 0; i < keys.length; i++) {
		keys[i].destroy();
	}
	keys = [];
	for (var i = 0; i < treasures.length; i++) {
		treasures[i].destroy();
	}
	treasures = [];
	for (var i = 0; i < fallingRocks.length; i++) {
		fallingRocks[i].destroy();
	}
	fallingRocks = [];
	levelGrid = [];
	if (explorer) {
		explorer.destroy();
		explorer = null;
	}
}
function createExplorer() {
	explorer = new Explorer();
	game.addChild(explorer);
	// Position explorer at start position
	for (var y = 0; y < gridHeight; y++) {
		for (var x = 0; x < gridWidth; x++) {
			if (levelGrid[y][x] === 'S') {
				explorer.x = x * tileSize + tileSize / 2;
				explorer.y = y * tileSize + tileSize / 2;
				break;
			}
		}
	}
}
function setupUI() {
	// Setup score text
	scoreTxt.setText(LK.getScore());
	scoreTxt.anchor.set(1, 0);
	LK.gui.topRight.addChild(scoreTxt);
	// Setup level text
	levelTxt.setText('Level: ' + storage.level);
	levelTxt.anchor.set(0.5, 0);
	levelTxt.y = 80;
	LK.gui.top.addChild(levelTxt);
	// Setup keys text
	keysTxt.setText('Keys: ' + storage.collectedKeys);
	keysTxt.anchor.set(0, 0);
	keysTxt.y = 80;
	LK.gui.topRight.addChild(keysTxt);
	// Setup lives text
	livesTxt.setText('Lives: ' + storage.lives);
	livesTxt.anchor.set(0, 0);
	LK.gui.topRight.addChild(livesTxt);
}
function generateLevel(level) {
	// Define different level layouts
	var layouts = [];
	// Level 1: Simple tutorial level
	layouts[1] = ["WWWWWWWWWWWWWWWWWWWW", "W        W         W", "W WWWWWW W WWWWWWW W", "W W           K  W W", "W W WWWWWWWWWWWW W W", "W W W            W W", "W W W WWWWWWWWWW W W", "W W W W        W W W", "W W W W WWWWWW W W W", "W W W W W    W W W W", "W W W W W WW W W W W", "W W   W W  W   W W W", "W WWWWW WWWWWWWW W W", "W                W W", "W WWWWWWWWWWWWWWWW W", "W                  W", "W WWWWWWWW WWWWWWW W", "W W      W       W W", "W W WWWW WWWWWWW W W", "W W W           W W W", "W W W WWWWWWWWW W W W", "W W W         W W W W", "W W WWWWWWWWW W W W W", "W W        DW W W W W", "W WWWWWWWWWWW W W TS W", "W              W    W", "WWWWWWWWWWWWWWWWWWWWW"];
	// Get layout for the single level
	var currentLayout = layouts[1];
	// Parse level layout
	for (var y = 0; y < currentLayout.length; y++) {
		levelGrid[y] = [];
		for (var x = 0; x < currentLayout[y].length; x++) {
			var cellType = currentLayout[y][x];
			levelGrid[y][x] = cellType;
			var xPos = x * tileSize + tileSize / 2;
			var yPos = y * tileSize + tileSize / 2;
			switch (cellType) {
				case 'W':
					// Wall
					var wall = new Wall();
					wall.x = xPos;
					wall.y = yPos;
					game.addChild(wall);
					walls.push(wall);
					break;
				case 'K':
					// Key
					var key = new Key();
					key.x = xPos;
					key.y = yPos;
					game.addChild(key);
					keys.push(key);
					break;
				case 'T':
					// Treasure
					var treasure = new Treasure();
					treasure.x = xPos;
					treasure.y = yPos;
					game.addChild(treasure);
					treasures.push(treasure);
					break;
				case 'F':
					// Falling rock
					var rock = new FallingRock();
					rock.x = xPos;
					rock.y = yPos;
					rock.initialY = yPos;
					game.addChild(rock);
					fallingRocks.push(rock);
					break;
			}
		}
	}
}
function getGridPosition(x, y) {
	var gridX = Math.floor(x / tileSize);
	var gridY = Math.floor(y / tileSize);
	if (gridX >= 0 && gridX < gridWidth && gridY >= 0 && gridY < gridHeight) {
		return {
			x: gridX,
			y: gridY
		};
	}
	return null;
}
function isWalkable(gridX, gridY) {
	if (gridX < 0 || gridX >= gridWidth || gridY < 0 || gridY >= gridHeight) {
		return false;
	}
	var cellType = levelGrid[gridY][gridX];
	// Check if cell is walkable
	if (cellType === 'W') {
		return false;
	}
	return true;
}
function getDoorAt(gridX, gridY) {
	for (var i = 0; i < doors.length; i++) {
		var doorPos = getGridPosition(doors[i].x, doors[i].y);
		if (doorPos && doorPos.x === gridX && doorPos.y === gridY) {
			return doors[i];
		}
	}
	return null;
}
function getRiverAt(gridX, gridY) {
	for (var i = 0; i < rivers.length; i++) {
		var riverPos = getGridPosition(rivers[i].x, rivers[i].y);
		if (riverPos && riverPos.x === gridX && riverPos.y === gridY) {
			return rivers[i];
		}
	}
	return null;
}
// Update UI
function updateUI() {
	scoreTxt.setText(LK.getScore());
	levelTxt.setText('Level: ' + storage.level);
	keysTxt.setText('Keys: ' + storage.collectedKeys);
	livesTxt.setText('Lives: ' + storage.lives);
}
// Check for collisions
function checkCollisions() {
	if (!explorer) {
		return;
	}
	var explorerPos = getGridPosition(explorer.x, explorer.y);
	if (!explorerPos) {
		return;
	}
	var cellType = levelGrid[explorerPos.y][explorerPos.x];
	// Check key collision
	if (cellType === 'K') {
		for (var i = 0; i < keys.length; i++) {
			var keyPos = getGridPosition(keys[i].x, keys[i].y);
			if (keyPos && keyPos.x === explorerPos.x && keyPos.y === explorerPos.y) {
				explorer.collectKey();
				keys[i].destroy();
				keys.splice(i, 1);
				levelGrid[explorerPos.y][explorerPos.x] = ' ';
				LK.getSound('collect').play();
				break;
			}
		}
	}
	// Check treasure collision
	if (cellType === 'T') {
		for (var i = 0; i < treasures.length; i++) {
			var treasurePos = getGridPosition(treasures[i].x, treasures[i].y);
			if (treasurePos && treasurePos.x === explorerPos.x && treasurePos.y === explorerPos.y && !treasures[i].isCollected) {
				treasures[i].collect();
				break;
			}
		}
	}
	// Check falling rock collision
	for (var i = 0; i < fallingRocks.length; i++) {
		var rock = fallingRocks[i];
		// Trigger rock if explorer is underneath
		var rockPos = getGridPosition(rock.x, rock.y);
		if (rockPos && explorerPos.x === rockPos.x && explorerPos.y > rockPos.y && !rock.isTriggered && !rock.isFalling) {
			rock.trigger();
		}
		// Check if rock hits explorer
		if (rock.isFalling && explorer.intersects(rock)) {
			explorer.takeDamage();
			rock.reset();
		}
	}
}
function moveExplorer(targetX, targetY) {
	if (!explorer || explorer.isMoving) {
		return;
	}
	var currentGridPos = getGridPosition(explorer.x, explorer.y);
	var targetGridPos = getGridPosition(targetX, targetY);
	if (!currentGridPos || !targetGridPos) {
		return;
	}
	// Only allow movement to adjacent cells
	var dx = Math.abs(targetGridPos.x - currentGridPos.x);
	var dy = Math.abs(targetGridPos.y - currentGridPos.y);
	if (dx === 1 && dy === 0 || dx === 0 && dy === 1) {
		if (isWalkable(targetGridPos.x, targetGridPos.y)) {
			var cellCenterX = targetGridPos.x * tileSize + tileSize / 2;
			var cellCenterY = targetGridPos.y * tileSize + tileSize / 2;
			explorer.moveToward(cellCenterX, cellCenterY);
		}
	}
}
// Handle touch/mouse events
function handleGameInput(x, y, obj) {
	if (!gameStarted) {
		return;
	}
	moveExplorer(x, y);
}
// Start game when page loads
initializeGame();
// Handle touch/mouse events
game.down = handleGameInput;
// Game update loop
game.update = function () {
	if (!gameStarted) {
		return;
	}
	// Update UI
	updateUI();
	// Check collisions
	checkCollisions();
};

===================================================================
--- original.js
+++ change.js
@@ -349,16 +349,10 @@
 	// Define different level layouts
 	var layouts = [];
 	// Level 1: Simple tutorial level
 	layouts[1] = ["WWWWWWWWWWWWWWWWWWWW", "W        W         W", "W WWWWWW W WWWWWWW W", "W W           K  W W", "W W WWWWWWWWWWWW W W", "W W W            W W", "W W W WWWWWWWWWW W W", "W W W W        W W W", "W W W W WWWWWW W W W", "W W W W W    W W W W", "W W W W W WW W W W W", "W W   W W  W   W W W", "W WWWWW WWWWWWWW W W", "W                W W", "W WWWWWWWWWWWWWWWW W", "W                  W", "W WWWWWWWW WWWWWWW W", "W W      W       W W", "W W WWWW WWWWWWW W W", "W W W           W W W", "W W W WWWWWWWWW W W W", "W W W         W W W W", "W W WWWWWWWWW W W W W", "W W        DW W W W W", "W WWWWWWWWWWW W W TS W", "W              W    W", "WWWWWWWWWWWWWWWWWWWWW"];
-	// Level 2: Introducing spikes
-	layouts[2] = ["WWWWWWWWWWWWWWWWWWWW", "W        W         W", "W WWWWWW W WWWWWWW W", "W W           K  W W", "W W WWWWWWWWWWWW W W", "W W W            W W", "W W W WWWWWWWWWW W W", "W W W W        W W W", "W W W W WWWWWW W W W", "W W W W W    W W W W", "W W W W W WW W W W W", "W W   W W  W   W W W", "W WWWWW WWWWWWWW W W", "W         X     W W W", "W WWWWWWWWWWWWWWWW W", "W     X      X     W", "W WWWWWWWW WWWWWWW W", "W W      W       W W", "W W WWWW WWWWWWW W W", "W W W     X     W W W", "W W W WWWWWWWWW W W W", "W W W    X    W W W W", "W W WWWWWWWWW W W W W", "W W        DW W W W W", "W WWWWWWWWWWW W W TS W", "W              W    W", "WWWWWWWWWWWWWWWWWWWWW"];
-	// Level 3: Introducing falling rocks
-	layouts[3] = ["WWWWWWWWWWWWWWWWWWWW", "W        W         W", "W WWWWWW W WWWWWWW W", "W W           K  W W", "W W WWWWWWWWWWWW W W", "W W W     F      W W", "W W W WWWWWWWWWW W W", "W W W W  F     W W W", "W W W W WWWWWW W W W", "W W W W W    W W W W", "W W W W W WW W W W W", "W W   W W  W   W W W", "W WWWWW WWWWWWWW W W", "W    F    X     W W W", "W WWWWWWWWWWWWWWWW W", "W     X  F   X     W", "W WWWWWWWW WWWWWWW W", "W W      W       W W", "W W WWWW WWWWWWW W W", "W W W     X  F  W W W", "W W W WWWWWWWWW W W W", "W W W F  X    W W W W", "W W WWWWWWWWW W W W W", "W W        DW W W W W", "W WWWWWWWWWWW W W TS W", "W              W    W", "WWWWWWWWWWWWWWWWWWWWW"];
-	// Level 4: Introducing rivers
-	layouts[4] = ["WWWWWWWWWWWWWWWWWWWW", "WS       W         W", "W WWWWWW W WWWWWWW W", "W W           K  W W", "W W WWWWWWWWWWWW W W", "W W W     F      W W", "W W W WWWWWWWWWW W W", "W W W W  F     W W W", "W W W W WWWWWW W W W", "W W W W W    W W W W", "W W W W W WW W W W W", "W W   W W  W   W W W", "W WWWWW WWWWWWWW W W", "W    F    X     W W W", "WRRRRRRRRRRRRRRRRR W", "W     X  F   X     W", "W WWWWWWWW WWWWWWW W", "W W      W       W W", "W W WWWW WWWWWWW W W", "W W W     X  F  W W W", "W W W WWWWWWWWW W W W", "W W W F  X    W W W W", "W W WWWWWWWWW W W W W", "W W        DW W W W W", "W WWWWWWWWWWW W W T  W", "W              W    W", "WWWWWWWWWWWWWWWWWWWWW"];
-	// Get layout for current level or use level 4 for any higher levels
-	var currentLayout = layouts[Math.min(level, 4)];
+	// Get layout for the single level
+	var currentLayout = layouts[1];
 	// Parse level layout
 	for (var y = 0; y < currentLayout.length; y++) {
 		levelGrid[y] = [];
 		for (var x = 0; x < currentLayout[y].length; x++) {