/**** 
* Classes
****/ 
var House = Container.expand(function () {
	var self = Container.call(this);
	// Ground floor
	var groundFloorWall = self.attachAsset('houseWall', {
		x: 0,
		y: 1400
	});
	var groundFloor = self.attachAsset('houseFloor', {
		x: 0,
		y: 2000
	});
	// Second floor
	var secondFloorWall = self.attachAsset('houseWall', {
		x: 0,
		y: 600
	});
	var secondFloor = self.attachAsset('houseFloor', {
		x: 0,
		y: 1200
	});
	// Stairs connecting floors
	var stairway = self.attachAsset('stairs', {
		x: 974,
		y: 1050
	});
	// Windows
	var window1 = self.attachAsset('window', {
		x: 300,
		y: 700
	});
	var window2 = self.attachAsset('window', {
		x: 800,
		y: 700
	});
	var window3 = self.attachAsset('window', {
		x: 1200,
		y: 700
	});
	var window4 = self.attachAsset('window', {
		x: 1600,
		y: 700
	});
	var window5 = self.attachAsset('window', {
		x: 300,
		y: 1500
	});
	var window6 = self.attachAsset('window', {
		x: 800,
		y: 1500
	});
	var window7 = self.attachAsset('window', {
		x: 1200,
		y: 1500
	});
	var window8 = self.attachAsset('window', {
		x: 1600,
		y: 1500
	});
	// Exit door (locked)
	var exitDoor = self.attachAsset('door', {
		x: 1900,
		y: 1820
	});
	var exitLock = self.attachAsset('lock', {
		x: 1970,
		y: 1860
	});
	// Basement door (locked)
	var basementDoor = self.attachAsset('door', {
		x: 100,
		y: 1820
	});
	var basementLock = self.attachAsset('lock', {
		x: 170,
		y: 1860
	});
	// Store door references for game logic
	self.exitDoor = exitDoor;
	self.basementDoor = basementDoor;
	self.exitLocked = true;
	self.basementLocked = true;
	return self;
});
var Player = Container.expand(function () {
	var self = Container.call(this);
	var playerGraphics = self.attachAsset('player', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 3;
	return self;
});

/**** 
* Initialize Game
****/ 
// Set dark atmospheric background
var game = new LK.Game({
	backgroundColor: 0x000000
});

/**** 
* Game Code
****/ 
// Set dark atmospheric background
// House structure assets
game.setBackgroundColor(0x0a0a0a);
// Create the two-story house
var house = game.addChild(new House());
// Position house to fill entire screen
house.x = 0;
house.y = 0;
// Create player
var player = game.addChild(new Player());
player.x = 2048 / 2;
player.y = 2500; // Start outside the house at bottom
// Variables for player movement
var dragNode = null;
// Game state variables
var gameStarted = false;
// Touch controls for player movement
game.down = function (x, y, obj) {
	dragNode = player;
	// Apply collision boundaries to keep player inside house walls
	var newX = x;
	var newY = y;
	// Horizontal boundaries (house walls at x=0 and x=2048)
	if (newX < 20) newX = 20; // Left wall boundary
	if (newX > 2028) newX = 2028; // Right wall boundary
	// Vertical boundaries 
	if (newY < 620) newY = 620; // Top of second floor
	if (newY > 2000) newY = 2000; // Bottom of ground floor
	player.x = newX;
	player.y = newY;
};
game.move = function (x, y, obj) {
	if (dragNode) {
		// Apply collision boundaries to keep player inside house walls
		var newX = x;
		var newY = y;
		// Horizontal boundaries (house walls at x=0 and x=2048)
		if (newX < 20) newX = 20; // Left wall boundary
		if (newX > 2028) newX = 2028; // Right wall boundary
		// Vertical boundaries 
		if (newY < 620) newY = 620; // Top of second floor
		if (newY > 2000) newY = 2000; // Bottom of ground floor
		dragNode.x = newX;
		dragNode.y = newY;
	}
};
game.up = function (x, y, obj) {
	dragNode = null;
};
// Player floor tracking
var playerFloor = 1; // 1 = ground floor, 2 = second floor
// Game update loop for stair interaction
game.update = function () {
	// Check if player is near stairs for floor transition
	var stairX = 974 + 50; // Center of stairs
	var stairY1 = 1200; // Second floor level
	var stairY2 = 2000; // Ground floor level
	var stairRange = 80;
	// Check distance to stairs
	var distanceToStairs = Math.sqrt(Math.pow(player.x - stairX, 2) + Math.pow(player.y - (stairY1 + stairY2) / 2, 2));
	if (distanceToStairs < stairRange) {
		// Player is near stairs, allow floor transition
		if (playerFloor === 1 && player.y < 1600) {
			// Moving from ground floor to second floor
			player.y = stairY1 - 20;
			playerFloor = 2;
		} else if (playerFloor === 2 && player.y > 1600) {
			// Moving from second floor to ground floor  
			player.y = stairY2 - 20;
			playerFloor = 1;
		}
	}
	// Update collision boundaries based on current floor
	if (playerFloor === 2) {
		// Second floor boundaries
		if (player.y > 1200) player.y = 1200;
		if (player.y < 620) player.y = 620;
	} else {
		// Ground floor boundaries
		if (player.y > 2000) player.y = 2000;
		if (player.y < 1200) player.y = 1200;
	}
};
// Display instructions
var instructionText = new Text2('Explore the haunted house\nUse stairs to move between floors\nExit and basement doors are locked', {
	size: 50,
	fill: 0xCCCCCC
});
instructionText.anchor.set(0.5, 0);
LK.gui.top.addChild(instructionText);
;

===================================================================
--- original.js
+++ change.js
@@ -123,23 +123,76 @@
 var gameStarted = false;
 // Touch controls for player movement
 game.down = function (x, y, obj) {
 	dragNode = player;
-	player.x = x;
-	player.y = y;
+	// Apply collision boundaries to keep player inside house walls
+	var newX = x;
+	var newY = y;
+	// Horizontal boundaries (house walls at x=0 and x=2048)
+	if (newX < 20) newX = 20; // Left wall boundary
+	if (newX > 2028) newX = 2028; // Right wall boundary
+	// Vertical boundaries 
+	if (newY < 620) newY = 620; // Top of second floor
+	if (newY > 2000) newY = 2000; // Bottom of ground floor
+	player.x = newX;
+	player.y = newY;
 };
 game.move = function (x, y, obj) {
 	if (dragNode) {
-		dragNode.x = x;
-		dragNode.y = y;
+		// Apply collision boundaries to keep player inside house walls
+		var newX = x;
+		var newY = y;
+		// Horizontal boundaries (house walls at x=0 and x=2048)
+		if (newX < 20) newX = 20; // Left wall boundary
+		if (newX > 2028) newX = 2028; // Right wall boundary
+		// Vertical boundaries 
+		if (newY < 620) newY = 620; // Top of second floor
+		if (newY > 2000) newY = 2000; // Bottom of ground floor
+		dragNode.x = newX;
+		dragNode.y = newY;
 	}
 };
 game.up = function (x, y, obj) {
 	dragNode = null;
 };
+// Player floor tracking
+var playerFloor = 1; // 1 = ground floor, 2 = second floor
+// Game update loop for stair interaction
+game.update = function () {
+	// Check if player is near stairs for floor transition
+	var stairX = 974 + 50; // Center of stairs
+	var stairY1 = 1200; // Second floor level
+	var stairY2 = 2000; // Ground floor level
+	var stairRange = 80;
+	// Check distance to stairs
+	var distanceToStairs = Math.sqrt(Math.pow(player.x - stairX, 2) + Math.pow(player.y - (stairY1 + stairY2) / 2, 2));
+	if (distanceToStairs < stairRange) {
+		// Player is near stairs, allow floor transition
+		if (playerFloor === 1 && player.y < 1600) {
+			// Moving from ground floor to second floor
+			player.y = stairY1 - 20;
+			playerFloor = 2;
+		} else if (playerFloor === 2 && player.y > 1600) {
+			// Moving from second floor to ground floor  
+			player.y = stairY2 - 20;
+			playerFloor = 1;
+		}
+	}
+	// Update collision boundaries based on current floor
+	if (playerFloor === 2) {
+		// Second floor boundaries
+		if (player.y > 1200) player.y = 1200;
+		if (player.y < 620) player.y = 620;
+	} else {
+		// Ground floor boundaries
+		if (player.y > 2000) player.y = 2000;
+		if (player.y < 1200) player.y = 1200;
+	}
+};
 // Display instructions
-var instructionText = new Text2('Explore the haunted house\nExit and basement doors are locked', {
-	size: 60,
+var instructionText = new Text2('Explore the haunted house\nUse stairs to move between floors\nExit and basement doors are locked', {
+	size: 50,
 	fill: 0xCCCCCC
 });
 instructionText.anchor.set(0.5, 0);
-LK.gui.top.addChild(instructionText);
\ No newline at end of file
+LK.gui.top.addChild(instructionText);
+;
\ No newline at end of file