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

/**** 
* Classes
****/ 
var Ghost = Container.expand(function (color, startX, startY) {
	var self = Container.call(this);
	var graphics = self.attachAsset('ghost', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	graphics.tint = color;
	self.gridX = startX;
	self.gridY = startY;
	self.direction = 0;
	self.speed = 2;
	self.vulnerable = false;
	self.vulnerableTimer = 0;
	self.moveTimer = 0;
	self.x = self.gridX * CELL_SIZE + CELL_SIZE / 2 + MAZE_OFFSET_X;
	self.y = self.gridY * CELL_SIZE + CELL_SIZE / 2 + MAZE_OFFSET_Y;
	self.update = function () {
		self.moveTimer++;
		if (self.vulnerable) {
			self.vulnerableTimer--;
			graphics.tint = self.vulnerableTimer % 60 < 30 ? 0x0000FF : 0xFFFFFF;
			if (self.vulnerableTimer <= 0) {
				self.vulnerable = false;
				graphics.tint = color;
			}
		}
		if (self.moveTimer % (self.vulnerable ? 6 : 4) === 0) {
			// Simple AI: choose random valid direction
			var validDirections = [];
			var directions = [{
				dx: 1,
				dy: 0
			},
			// right
			{
				dx: 0,
				dy: 1
			},
			// down
			{
				dx: -1,
				dy: 0
			},
			// left
			{
				dx: 0,
				dy: -1
			} // up
			];
			for (var i = 0; i < directions.length; i++) {
				var newX = self.gridX + directions[i].dx;
				var newY = self.gridY + directions[i].dy;
				if (newX >= 0 && newX < MAZE_WIDTH && newY >= 0 && newY < MAZE_HEIGHT) {
					if (maze[newY][newX] !== 1) {
						validDirections.push(i);
					}
				}
			}
			if (validDirections.length > 0) {
				self.direction = validDirections[Math.floor(Math.random() * validDirections.length)];
				var dir = directions[self.direction];
				self.gridX += dir.dx;
				self.gridY += dir.dy;
				// Handle tunnel wrapping
				if (self.gridX < 0) self.gridX = MAZE_WIDTH - 1;
				if (self.gridX >= MAZE_WIDTH) self.gridX = 0;
				self.x = self.gridX * CELL_SIZE + CELL_SIZE / 2 + MAZE_OFFSET_X;
				self.y = self.gridY * CELL_SIZE + CELL_SIZE / 2 + MAZE_OFFSET_Y;
			}
		}
	};
	return self;
});
var PacMan = Container.expand(function () {
	var self = Container.call(this);
	var graphics = self.attachAsset('pacman', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.direction = 0; // 0=right, 1=down, 2=left, 3=up
	self.nextDirection = 0;
	self.speed = 3;
	self.gridX = 1;
	self.gridY = 1;
	self.animationTimer = 0;
	self.targetX = 1 * CELL_SIZE + CELL_SIZE / 2 + MAZE_OFFSET_X;
	self.targetY = 1 * CELL_SIZE + CELL_SIZE / 2 + MAZE_OFFSET_Y;
	self.moveProgress = 1.0;
	self.isMoving = false;
	self.update = function () {
		self.animationTimer++;
		// Simple mouth animation by scaling
		if (self.animationTimer % 20 < 10) {
			graphics.scaleX = 0.9;
		} else {
			graphics.scaleX = 1.0;
		}
		// Update rotation based on direction
		graphics.rotation = self.direction * Math.PI / 2;
		// Handle smooth movement
		if (self.isMoving) {
			self.moveProgress += 0.15; // Movement speed
			if (self.moveProgress >= 1.0) {
				self.moveProgress = 1.0;
				self.isMoving = false;
				self.x = self.targetX;
				self.y = self.targetY;
			} else {
				// Interpolate position
				var startX = self.gridX * CELL_SIZE + CELL_SIZE / 2 + MAZE_OFFSET_X;
				var startY = self.gridY * CELL_SIZE + CELL_SIZE / 2 + MAZE_OFFSET_Y;
				self.x = startX + (self.targetX - startX) * self.moveProgress;
				self.y = startY + (self.targetY - startY) * self.moveProgress;
			}
		}
		// Start new movement if not currently moving
		if (!self.isMoving) {
			var newGridX = self.gridX;
			var newGridY = self.gridY;
			// Calculate next position
			if (self.direction === 0) newGridX++; // right
			else if (self.direction === 1) newGridY++; // down
			else if (self.direction === 2) newGridX--; // left
			else if (self.direction === 3) newGridY--; // up
			// Check if next position is valid
			if (newGridX >= 0 && newGridX < MAZE_WIDTH && newGridY >= 0 && newGridY < MAZE_HEIGHT) {
				if (maze[newGridY][newGridX] !== 1) {
					// Handle tunnel wrapping
					if (newGridX < 0) newGridX = MAZE_WIDTH - 1;
					if (newGridX >= MAZE_WIDTH) newGridX = 0;
					// Start smooth movement
					self.gridX = newGridX;
					self.gridY = newGridY;
					self.targetX = self.gridX * CELL_SIZE + CELL_SIZE / 2 + MAZE_OFFSET_X;
					self.targetY = self.gridY * CELL_SIZE + CELL_SIZE / 2 + MAZE_OFFSET_Y;
					self.moveProgress = 0.0;
					self.isMoving = true;
				}
			}
		}
	};
	return self;
});

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

/**** 
* Game Code
****/ 
var MAZE_WIDTH = 19;
var MAZE_HEIGHT = 21;
var CELL_SIZE = 40;
var MAZE_OFFSET_X = (2048 - MAZE_WIDTH * CELL_SIZE) / 2;
var MAZE_OFFSET_Y = 200;
// Simple maze layout (1 = wall, 0 = empty, 2 = dot, 3 = power pellet)
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, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 2, 2, 1], [1, 3, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 3, 1], [1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1], [1, 2, 1, 1, 1, 2, 1, 2, 1, 1, 1, 2, 1, 2, 1, 1, 1, 2, 1], [1, 2, 2, 2, 2, 2, 1, 2, 2, 1, 2, 2, 1, 2, 2, 2, 2, 2, 1], [1, 1, 1, 1, 1, 2, 1, 1, 0, 1, 0, 1, 1, 2, 1, 1, 1, 1, 1], [0, 0, 0, 0, 1, 2, 1, 0, 0, 0, 0, 0, 1, 2, 1, 0, 0, 0, 0], [1, 1, 1, 1, 1, 2, 1, 0, 1, 0, 1, 0, 1, 2, 1, 1, 1, 1, 1], [2, 2, 2, 2, 2, 2, 2, 0, 1, 0, 1, 0, 2, 2, 2, 2, 2, 2, 2], [1, 1, 1, 1, 1, 2, 1, 0, 1, 0, 1, 0, 1, 2, 1, 1, 1, 1, 1], [0, 0, 0, 0, 1, 2, 1, 0, 0, 0, 0, 0, 1, 2, 1, 0, 0, 0, 0], [1, 1, 1, 1, 1, 2, 1, 1, 0, 1, 0, 1, 1, 2, 1, 1, 1, 1, 1], [1, 2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 2, 2, 1], [1, 2, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 2, 1], [1, 3, 2, 2, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 2, 3, 1], [1, 1, 1, 2, 1, 2, 1, 2, 1, 1, 1, 2, 1, 2, 1, 2, 1, 1, 1], [1, 2, 2, 2, 2, 2, 1, 2, 2, 1, 2, 2, 1, 2, 2, 2, 2, 2, 1], [1, 2, 1, 1, 1, 1, 1, 1, 2, 1, 2, 1, 1, 1, 1, 1, 1, 2, 1], [1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]];
var walls = [];
var dots = [];
var powerPellets = [];
var ghosts = [];
var pacman;
var score = 0;
var lives = 3;
var level = 1;
var powerMode = false;
var powerModeTimer = 0;
var ghostScore = 200;
var totalDots = 0;
var dotsEaten = 0;
// Create maze elements
for (var y = 0; y < MAZE_HEIGHT; y++) {
	for (var x = 0; x < MAZE_WIDTH; x++) {
		var cellX = x * CELL_SIZE + CELL_SIZE / 2 + MAZE_OFFSET_X;
		var cellY = y * CELL_SIZE + CELL_SIZE / 2 + MAZE_OFFSET_Y;
		if (maze[y][x] === 1) {
			var wall = game.addChild(LK.getAsset('wall', {
				anchorX: 0.5,
				anchorY: 0.5,
				x: cellX,
				y: cellY
			}));
			walls.push(wall);
		} else if (maze[y][x] === 2) {
			var dot = game.addChild(LK.getAsset('dot', {
				anchorX: 0.5,
				anchorY: 0.5,
				x: cellX,
				y: cellY
			}));
			dots.push({
				obj: dot,
				x: x,
				y: y,
				eaten: false
			});
			totalDots++;
		} else if (maze[y][x] === 3) {
			var pellet = game.addChild(LK.getAsset('powerPellet', {
				anchorX: 0.5,
				anchorY: 0.5,
				x: cellX,
				y: cellY
			}));
			powerPellets.push({
				obj: pellet,
				x: x,
				y: y,
				eaten: false
			});
		}
	}
}
// Create Pac-Man
pacman = game.addChild(new PacMan());
pacman.x = pacman.gridX * CELL_SIZE + CELL_SIZE / 2 + MAZE_OFFSET_X;
pacman.y = pacman.gridY * CELL_SIZE + CELL_SIZE / 2 + MAZE_OFFSET_Y;
// Create ghosts
var ghostColors = [0xFF0000, 0xFFB8FF, 0x00FFFF, 0xFFB852];
var ghostPositions = [[9, 8], [9, 9], [8, 9], [10, 9]];
for (var i = 0; i < 4; i++) {
	var ghost = game.addChild(new Ghost(ghostColors[i], ghostPositions[i][0], ghostPositions[i][1]));
	ghosts.push(ghost);
}
// UI elements
var scoreText = new Text2('Score: 0', {
	size: 60,
	fill: 0xFFFF00
});
scoreText.anchor.set(0, 0);
LK.gui.topLeft.addChild(scoreText);
scoreText.x = 120;
scoreText.y = 20;
var livesText = new Text2('Lives: 3', {
	size: 60,
	fill: 0xFFFF00
});
livesText.anchor.set(1, 0);
LK.gui.topRight.addChild(livesText);
livesText.x = -20;
livesText.y = 20;
var levelText = new Text2('Level: 1', {
	size: 60,
	fill: 0xFFFF00
});
levelText.anchor.set(0.5, 0);
LK.gui.top.addChild(levelText);
levelText.y = 20;
// Touch controls
var lastTouchX = 0;
var lastTouchY = 0;
game.down = function (x, y, obj) {
	lastTouchX = x;
	lastTouchY = y;
};
game.up = function (x, y, obj) {
	var deltaX = x - lastTouchX;
	var deltaY = y - lastTouchY;
	if (Math.abs(deltaX) > Math.abs(deltaY)) {
		// Horizontal swipe
		pacman.nextDirection = deltaX > 0 ? 0 : 2; // right or left
	} else {
		// Vertical swipe
		pacman.nextDirection = deltaY > 0 ? 1 : 3; // down or up
	}
	// Try to change direction immediately if not moving or can turn
	var newGridX = pacman.gridX;
	var newGridY = pacman.gridY;
	if (pacman.nextDirection === 0) newGridX++; // right
	else if (pacman.nextDirection === 1) newGridY++; // down
	else if (pacman.nextDirection === 2) newGridX--; // left
	else if (pacman.nextDirection === 3) newGridY--; // up
	if (newGridX >= 0 && newGridX < MAZE_WIDTH && newGridY >= 0 && newGridY < MAZE_HEIGHT) {
		if (maze[newGridY][newGridX] !== 1) {
			pacman.direction = pacman.nextDirection;
			// If currently moving, interrupt and start new movement
			if (pacman.isMoving) {
				pacman.gridX = Math.round((pacman.x - MAZE_OFFSET_X - CELL_SIZE / 2) / CELL_SIZE);
				pacman.gridY = Math.round((pacman.y - MAZE_OFFSET_Y - CELL_SIZE / 2) / CELL_SIZE);
				pacman.isMoving = false;
			}
		}
	}
};
game.update = function () {
	if (powerMode) {
		powerModeTimer--;
		if (powerModeTimer <= 0) {
			powerMode = false;
			for (var i = 0; i < ghosts.length; i++) {
				ghosts[i].vulnerable = false;
			}
			ghostScore = 200;
		}
	}
	// Check dot collection
	for (var i = 0; i < dots.length; i++) {
		var dot = dots[i];
		if (!dot.eaten && dot.x === pacman.gridX && dot.y === pacman.gridY) {
			dot.eaten = true;
			dot.obj.visible = false;
			score += 10;
			dotsEaten++;
			LK.setScore(score);
			scoreText.setText('Score: ' + score);
			LK.getSound('chomp').play();
		}
	}
	// Check power pellet collection
	for (var i = 0; i < powerPellets.length; i++) {
		var pellet = powerPellets[i];
		if (!pellet.eaten && pellet.x === pacman.gridX && pellet.y === pacman.gridY) {
			pellet.eaten = true;
			pellet.obj.visible = false;
			score += 50;
			LK.setScore(score);
			scoreText.setText('Score: ' + score);
			powerMode = true;
			powerModeTimer = 300; // 5 seconds at 60fps
			ghostScore = 200;
			for (var j = 0; j < ghosts.length; j++) {
				ghosts[j].vulnerable = true;
				ghosts[j].vulnerableTimer = powerModeTimer;
			}
			LK.getSound('powerUp').play();
		}
	}
	// Check ghost collision
	for (var i = 0; i < ghosts.length; i++) {
		var ghost = ghosts[i];
		if (ghost.gridX === pacman.gridX && ghost.gridY === pacman.gridY) {
			if (ghost.vulnerable) {
				// Eat ghost
				score += ghostScore;
				ghostScore *= 2;
				LK.setScore(score);
				scoreText.setText('Score: ' + score);
				ghost.vulnerable = false;
				ghost.gridX = ghostPositions[i][0];
				ghost.gridY = ghostPositions[i][1];
				ghost.x = ghost.gridX * CELL_SIZE + CELL_SIZE / 2 + MAZE_OFFSET_X;
				ghost.y = ghost.gridY * CELL_SIZE + CELL_SIZE / 2 + MAZE_OFFSET_Y;
				LK.getSound('eatGhost').play();
			} else {
				// Lose life
				lives--;
				livesText.setText('Lives: ' + lives);
				if (lives <= 0) {
					LK.showGameOver();
				} else {
					// Reset positions
					pacman.gridX = 1;
					pacman.gridY = 1;
					pacman.x = pacman.gridX * CELL_SIZE + CELL_SIZE / 2 + MAZE_OFFSET_X;
					pacman.y = pacman.gridY * CELL_SIZE + CELL_SIZE / 2 + MAZE_OFFSET_Y;
					for (var j = 0; j < ghosts.length; j++) {
						ghosts[j].gridX = ghostPositions[j][0];
						ghosts[j].gridY = ghostPositions[j][1];
						ghosts[j].x = ghosts[j].gridX * CELL_SIZE + CELL_SIZE / 2 + MAZE_OFFSET_X;
						ghosts[j].y = ghosts[j].gridY * CELL_SIZE + CELL_SIZE / 2 + MAZE_OFFSET_Y;
						ghosts[j].vulnerable = false;
					}
					powerMode = false;
					powerModeTimer = 0;
				}
			}
		}
	}
	// Check level completion
	if (dotsEaten >= totalDots) {
		level++;
		dotsEaten = 0;
		levelText.setText('Level: ' + level);
		// Reset dots and pellets
		for (var i = 0; i < dots.length; i++) {
			dots[i].eaten = false;
			dots[i].obj.visible = true;
		}
		for (var i = 0; i < powerPellets.length; i++) {
			powerPellets[i].eaten = false;
			powerPellets[i].obj.visible = true;
		}
		// Increase ghost speed
		for (var i = 0; i < ghosts.length; i++) {
			ghosts[i].speed = Math.min(ghosts[i].speed + 0.5, 5);
		}
		// Reset positions
		pacman.gridX = 1;
		pacman.gridY = 1;
		pacman.x = pacman.gridX * CELL_SIZE + CELL_SIZE / 2 + MAZE_OFFSET_X;
		pacman.y = pacman.gridY * CELL_SIZE + CELL_SIZE / 2 + MAZE_OFFSET_Y;
		for (var i = 0; i < ghosts.length; i++) {
			ghosts[i].gridX = ghostPositions[i][0];
			ghosts[i].gridY = ghostPositions[i][1];
			ghosts[i].x = ghosts[i].gridX * CELL_SIZE + CELL_SIZE / 2 + MAZE_OFFSET_X;
			ghosts[i].y = ghosts[i].gridY * CELL_SIZE + CELL_SIZE / 2 + MAZE_OFFSET_Y;
			ghosts[i].vulnerable = false;
		}
		powerMode = false;
		powerModeTimer = 0;
	}
};