===================================================================
--- original.js
+++ change.js
@@ -1,6 +1,506 @@
-/****
+/**** 
+* Plugins
+****/ 
+var tween = LK.import("@upit/tween.v1");
+
+/**** 
+* Classes
+****/ 
+// Ghost class
+var Ghost = Container.expand(function () {
+	var self = Container.call(this);
+	self.colorId = 'ghost_red'; // default, will be set on init
+	self.frightened = false;
+	self.dir = {
+		x: 0,
+		y: 0
+	};
+	self.speed = 7;
+	self.gridX = 0;
+	self.gridY = 0;
+	self.scatterTarget = {
+		x: 0,
+		y: 0
+	}; // for future AI
+	self.mode = 'chase'; // 'chase', 'scatter', 'frightened'
+	self.frightTimer = 0;
+	self.attach = function (colorId) {
+		self.colorId = colorId;
+		self.removeChildren();
+		var ghostGfx = self.attachAsset(colorId, {
+			anchorX: 0.5,
+			anchorY: 0.5
+		});
+	};
+	self.setFrightened = function (on) {
+		self.frightened = on;
+		self.removeChildren();
+		if (on) {
+			self.attachAsset('ghost_fright', {
+				anchorX: 0.5,
+				anchorY: 0.5
+			});
+		} else {
+			self.attachAsset(self.colorId, {
+				anchorX: 0.5,
+				anchorY: 0.5
+			});
+		}
+	};
+	self.update = function () {
+		self.x += self.dir.x * self.speed;
+		self.y += self.dir.y * self.speed;
+	};
+	return self;
+});
+// Pacman class
+var Pacman = Container.expand(function () {
+	var self = Container.call(this);
+	var pacmanGfx = self.attachAsset('pacman', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.radius = pacmanGfx.width / 2;
+	self.dir = {
+		x: 1,
+		y: 0
+	}; // Start moving right
+	self.nextDir = {
+		x: 1,
+		y: 0
+	};
+	self.speed = 8; // pixels per tick
+	self.gridX = 0;
+	self.gridY = 0;
+	self.moving = true;
+	self.update = function () {
+		if (!self.moving) return;
+		// Move Pacman
+		self.x += self.dir.x * self.speed;
+		self.y += self.dir.y * self.speed;
+	};
+	return self;
+});
+// Pellet class
+var Pellet = Container.expand(function () {
+	var self = Container.call(this);
+	self.isPower = false;
+	self.attach = function (isPower) {
+		self.isPower = isPower;
+		self.removeChildren();
+		if (isPower) {
+			self.attachAsset('powerpellet', {
+				anchorX: 0.5,
+				anchorY: 0.5
+			});
+		} else {
+			self.attachAsset('pellet', {
+				anchorX: 0.5,
+				anchorY: 0.5
+			});
+		}
+	};
+	return self;
+});
+// Wall class
+var Wall = Container.expand(function () {
+	var self = Container.call(this);
+	self.attachAsset('wall', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	return self;
+});
+
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
 	backgroundColor: 0x000000
-});
\ No newline at end of file
+});
+
+/**** 
+* Game Code
+****/ 
+// Frightened ghost (white)
+// Ghosts (four colors)
+// Wall (blue box)
+// Power Pellet (bigger blue dot)
+// Pellet (small white dot)
+// Pacman (yellow circle)
+// --- Maze Layout ---
+// 0: empty, 1: wall, 2: pellet, 3: power pellet
+// 19x23 grid (classic Pacman aspect, fits 2048x2732 well)
+var MAZE_ROWS = 23;
+var MAZE_COLS = 19;
+var CELL_SIZE = 112; // 19*112=2128, 23*112=2576, fits in 2048x2732 with margin
+var MAZE_OFFSET_X = (2048 - MAZE_COLS * CELL_SIZE) / 2;
+var MAZE_OFFSET_Y = (2732 - MAZE_ROWS * CELL_SIZE) / 2 + 40;
+// Simple Pacman-like maze (minimal, for MVP)
+var MAZE = [[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1], [1, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 1], [1, 1, 1, 2, 1, 2, 1, 1, 1, 1, 1, 1, 2, 1, 2, 1, 1, 1, 1], [1, 3, 1, 2, 1, 2, 2, 2, 2, 1, 2, 2, 2, 1, 2, 1, 3, 1, 1], [1, 2, 1, 2, 1, 1, 1, 1, 2, 1, 2, 1, 1, 1, 2, 1, 2, 2, 1], [1, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 1], [1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1], [1, 2, 2, 2, 2, 2, 2, 2, 2, 0, 2, 2, 2, 2, 2, 2, 2, 2, 1], [1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1], [1, 2, 2, 2, 2, 2, 2, 1, 0, 0, 0, 1, 2, 2, 2, 2, 2, 2, 1], [1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1], [1, 2, 2, 2, 2, 2, 2, 2, 2, 0, 2, 2, 2, 2, 2, 2, 2, 2, 1], [1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1], [1, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 1], [1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1], [1, 3, 2, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 2, 3, 1], [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1], [1, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 1], [1, 2, 1, 2, 1, 2, 1, 1, 1, 1, 1, 1, 2, 1, 2, 1, 2, 2, 1], [1, 2, 1, 2, 1, 2, 2, 2, 2, 1, 2, 2, 2, 1, 2, 1, 2, 2, 1], [1, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 1], [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1], [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]];
+// --- Game State ---
+var pellets = [];
+var walls = [];
+var ghosts = [];
+var pacman = null;
+var score = 0;
+var pelletsLeft = 0;
+var frightTicks = 0;
+var frightActive = false;
+var frightDuration = 360; // 6 seconds at 60fps
+var swipeStart = null;
+var dragNode = null;
+var lastGameOver = false;
+// --- Score Display ---
+var scoreTxt = new Text2('0', {
+	size: 120,
+	fill: "#fff"
+});
+scoreTxt.anchor.set(0.5, 0);
+LK.gui.top.addChild(scoreTxt);
+// --- Maze Build ---
+function buildMaze() {
+	// Clear previous
+	for (var i = 0; i < pellets.length; ++i) pellets[i].destroy();
+	for (var i = 0; i < walls.length; ++i) walls[i].destroy();
+	pellets = [];
+	walls = [];
+	pelletsLeft = 0;
+	for (var row = 0; row < MAZE_ROWS; ++row) {
+		for (var col = 0; col < MAZE_COLS; ++col) {
+			var cell = MAZE[row][col];
+			var x = MAZE_OFFSET_X + col * CELL_SIZE + CELL_SIZE / 2;
+			var y = MAZE_OFFSET_Y + row * CELL_SIZE + CELL_SIZE / 2;
+			if (cell === 1) {
+				var wall = new Wall();
+				wall.x = x;
+				wall.y = y;
+				game.addChild(wall);
+				walls.push(wall);
+			} else if (cell === 2 || cell === 3) {
+				var pellet = new Pellet();
+				pellet.x = x;
+				pellet.y = y;
+				pellet.attach(cell === 3);
+				game.addChild(pellet);
+				pellets.push(pellet);
+				pelletsLeft++;
+			}
+		}
+	}
+}
+// --- Pacman Init ---
+function spawnPacman() {
+	if (pacman) pacman.destroy();
+	pacman = new Pacman();
+	// Start position: center of maze, row 15, col 9
+	pacman.gridX = 9;
+	pacman.gridY = 15;
+	pacman.x = MAZE_OFFSET_X + pacman.gridX * CELL_SIZE + CELL_SIZE / 2;
+	pacman.y = MAZE_OFFSET_Y + pacman.gridY * CELL_SIZE + CELL_SIZE / 2;
+	pacman.dir = {
+		x: 1,
+		y: 0
+	};
+	pacman.nextDir = {
+		x: 1,
+		y: 0
+	};
+	pacman.moving = true;
+	game.addChild(pacman);
+}
+// --- Ghosts Init ---
+function spawnGhosts() {
+	// Remove old ghosts
+	for (var i = 0; i < ghosts.length; ++i) ghosts[i].destroy();
+	ghosts = [];
+	// Four ghosts, different colors, start in center
+	var ghostColors = ['ghost_red', 'ghost_pink', 'ghost_blue', 'ghost_orange'];
+	var ghostStarts = [{
+		col: 9,
+		row: 11
+	}, {
+		col: 8,
+		row: 11
+	}, {
+		col: 10,
+		row: 11
+	}, {
+		col: 9,
+		row: 12
+	}];
+	for (var i = 0; i < 4; ++i) {
+		var ghost = new Ghost();
+		ghost.attach(ghostColors[i]);
+		ghost.gridX = ghostStarts[i].col;
+		ghost.gridY = ghostStarts[i].row;
+		ghost.x = MAZE_OFFSET_X + ghost.gridX * CELL_SIZE + CELL_SIZE / 2;
+		ghost.y = MAZE_OFFSET_Y + ghost.gridY * CELL_SIZE + CELL_SIZE / 2;
+		// Initial direction: up or left/right
+		if (i === 0) ghost.dir = {
+			x: 0,
+			y: -1
+		};else if (i === 1) ghost.dir = {
+			x: -1,
+			y: 0
+		};else if (i === 2) ghost.dir = {
+			x: 1,
+			y: 0
+		};else ghost.dir = {
+			x: 0,
+			y: 1
+		};
+		ghost.frightened = false;
+		ghosts.push(ghost);
+		game.addChild(ghost);
+	}
+}
+// --- Utility: Grid <-> Pixel ---
+function posToGrid(x, y) {
+	var col = Math.floor((x - MAZE_OFFSET_X) / CELL_SIZE);
+	var row = Math.floor((y - MAZE_OFFSET_Y) / CELL_SIZE);
+	return {
+		col: col,
+		row: row
+	};
+}
+function gridToPos(col, row) {
+	return {
+		x: MAZE_OFFSET_X + col * CELL_SIZE + CELL_SIZE / 2,
+		y: MAZE_OFFSET_Y + row * CELL_SIZE + CELL_SIZE / 2
+	};
+}
+function isWall(col, row) {
+	if (col < 0 || col >= MAZE_COLS || row < 0 || row >= MAZE_ROWS) return true;
+	return MAZE[row][col] === 1;
+}
+// --- Pacman Movement & Input ---
+function canMove(col, row, dir) {
+	var nextCol = col + dir.x;
+	var nextRow = row + dir.y;
+	return !isWall(nextCol, nextRow);
+}
+function updatePacmanDirection() {
+	var grid = posToGrid(pacman.x, pacman.y);
+	// Snap to center of cell
+	var center = gridToPos(grid.col, grid.row);
+	var dx = Math.abs(pacman.x - center.x);
+	var dy = Math.abs(pacman.y - center.y);
+	if (dx < 4 && dy < 4) {
+		// At center, can change direction
+		if (canMove(grid.col, grid.row, pacman.nextDir)) {
+			pacman.dir = {
+				x: pacman.nextDir.x,
+				y: pacman.nextDir.y
+			};
+		}
+		// If can't move in current dir, stop
+		if (!canMove(grid.col, grid.row, pacman.dir)) {
+			pacman.moving = false;
+		} else {
+			pacman.moving = true;
+		}
+		// Snap to center
+		pacman.x = center.x;
+		pacman.y = center.y;
+	}
+}
+// --- Ghost Movement (Random for MVP, smarter later) ---
+function getValidGhostDirs(ghost) {
+	var grid = posToGrid(ghost.x, ghost.y);
+	var dirs = [{
+		x: 1,
+		y: 0
+	}, {
+		x: -1,
+		y: 0
+	}, {
+		x: 0,
+		y: 1
+	}, {
+		x: 0,
+		y: -1
+	}];
+	var valid = [];
+	for (var i = 0; i < dirs.length; ++i) {
+		var d = dirs[i];
+		// Don't reverse direction
+		if (ghost.dir.x === -d.x && ghost.dir.y === -d.y) continue;
+		if (!isWall(grid.col + d.x, grid.row + d.y)) valid.push(d);
+	}
+	return valid;
+}
+function updateGhostDirection(ghost) {
+	var grid = posToGrid(ghost.x, ghost.y);
+	var center = gridToPos(grid.col, grid.row);
+	var dx = Math.abs(ghost.x - center.x);
+	var dy = Math.abs(ghost.y - center.y);
+	if (dx < 4 && dy < 4) {
+		// At center, pick new direction
+		var valid = getValidGhostDirs(ghost);
+		if (valid.length === 0) {
+			ghost.dir = {
+				x: -ghost.dir.x,
+				y: -ghost.dir.y
+			};
+		} else {
+			// MVP: random direction
+			var idx = Math.floor(Math.random() * valid.length);
+			ghost.dir = {
+				x: valid[idx].x,
+				y: valid[idx].y
+			};
+		}
+		// Snap to center
+		ghost.x = center.x;
+		ghost.y = center.y;
+	}
+}
+// --- Pellet Eating ---
+function checkPelletEat() {
+	for (var i = pellets.length - 1; i >= 0; --i) {
+		var pellet = pellets[i];
+		var dx = pacman.x - pellet.x;
+		var dy = pacman.y - pellet.y;
+		var dist = Math.sqrt(dx * dx + dy * dy);
+		if (dist < 48) {
+			// Eat pellet
+			if (pellet.isPower) {
+				frightTicks = frightDuration;
+				frightActive = true;
+				for (var g = 0; g < ghosts.length; ++g) {
+					ghosts[g].setFrightened(true);
+				}
+			}
+			pellet.destroy();
+			pellets.splice(i, 1);
+			pelletsLeft--;
+			score += pellet.isPower ? 50 : 10;
+			scoreTxt.setText(score);
+			LK.setScore(score);
+			if (pelletsLeft === 0) {
+				LK.showYouWin();
+			}
+		}
+	}
+}
+// --- Ghost Collisions ---
+function checkGhostCollisions() {
+	for (var i = 0; i < ghosts.length; ++i) {
+		var ghost = ghosts[i];
+		var dx = pacman.x - ghost.x;
+		var dy = pacman.y - ghost.y;
+		var dist = Math.sqrt(dx * dx + dy * dy);
+		if (dist < 60) {
+			if (ghost.frightened) {
+				// Eat ghost
+				ghost.setFrightened(false);
+				// Send ghost to home
+				var home = gridToPos(9, 11);
+				ghost.x = home.x;
+				ghost.y = home.y;
+				ghost.dir = {
+					x: 0,
+					y: -1
+				};
+				score += 200;
+				scoreTxt.setText(score);
+				LK.setScore(score);
+			} else {
+				// Pacman dies
+				if (!lastGameOver) {
+					LK.effects.flashScreen(0xff0000, 1000);
+					LK.showGameOver();
+					lastGameOver = true;
+				}
+			}
+		}
+	}
+}
+// --- Frightened Mode Timer ---
+function updateFrightened() {
+	if (frightActive) {
+		frightTicks--;
+		if (frightTicks <= 0) {
+			frightActive = false;
+			for (var g = 0; g < ghosts.length; ++g) {
+				ghosts[g].setFrightened(false);
+			}
+		}
+	}
+}
+// --- Input: Swipe to set direction ---
+function getSwipeDir(start, end) {
+	var dx = end.x - start.x;
+	var dy = end.y - start.y;
+	if (Math.abs(dx) > Math.abs(dy)) {
+		if (dx > 32) return {
+			x: 1,
+			y: 0
+		};
+		if (dx < -32) return {
+			x: -1,
+			y: 0
+		};
+	} else {
+		if (dy > 32) return {
+			x: 0,
+			y: 1
+		};
+		if (dy < -32) return {
+			x: 0,
+			y: -1
+		};
+	}
+	return null;
+}
+game.down = function (x, y, obj) {
+	swipeStart = {
+		x: x,
+		y: y
+	};
+	dragNode = pacman;
+};
+game.move = function (x, y, obj) {
+	if (!swipeStart) return;
+	var swipeEnd = {
+		x: x,
+		y: y
+	};
+	var dir = getSwipeDir(swipeStart, swipeEnd);
+	if (dir) {
+		pacman.nextDir = dir;
+		swipeStart = null;
+	}
+};
+game.up = function (x, y, obj) {
+	swipeStart = null;
+	dragNode = null;
+};
+// --- Game Update Loop ---
+game.update = function () {
+	if (!pacman) return;
+	lastGameOver = false;
+	updatePacmanDirection();
+	pacman.update();
+	for (var i = 0; i < ghosts.length; ++i) {
+		updateGhostDirection(ghosts[i]);
+		ghosts[i].update();
+	}
+	checkPelletEat();
+	checkGhostCollisions();
+	updateFrightened();
+};
+// --- Game Start ---
+function startGame() {
+	score = 0;
+	LK.setScore(0);
+	scoreTxt.setText('0');
+	buildMaze();
+	spawnPacman();
+	spawnGhosts();
+	frightTicks = 0;
+	frightActive = false;
+	lastGameOver = false;
+}
+startGame();
\ No newline at end of file