/**** 
* Classes
****/ 
// ProfesorMonster class: AI-driven monster that chases the student
var ProfesorMonster = Container.expand(function () {
	var self = Container.call(this);
	// Attach profesor asset
	var profesorSprite = self.attachAsset('profesor', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Track last position for event logic
	self.lastX = self.x;
	self.lastY = self.y;
	self.lastWasIntersecting = false;
	// Update method: chase the student
	self.update = function () {
		// Store last position
		self.lastX = self.x;
		self.lastY = self.y;
		// Immobilize profesor if student is touching the door (popup active)
		if (typeof showMathQuestion !== "undefined" && showMathQuestion || typeof student !== "undefined" && typeof student.lastWasIntersectingDoor !== "undefined" && student.lastWasIntersectingDoor) {
			// Profesor stays still, do not move
			return;
		}
		// Use global student variable
		if (typeof student === "undefined" || !student) return;
		// Simple AI: move towards the student
		var dx = student.x - self.x;
		var dy = student.y - self.y;
		var dist = Math.sqrt(dx * dx + dy * dy);
		var speed = 6; // profesor speed, now much slower than student
		if (dist > speed) {
			// Calculate intended new position
			var nextX = self.x + dx / dist * speed;
			var nextY = self.y + dy / dist * speed;
			var blocked = false;
			// Level 2: block profesor on obstacles
			if (typeof currentLevel !== "undefined" && currentLevel === 2 && typeof game !== "undefined" && game.level2Obstacles) {
				for (var i = 0; i < game.level2Obstacles.length; i++) {
					var obs = game.level2Obstacles[i];
					// Simulate move: temporarily set position, check collision, revert
					var oldX = self.x,
						oldY = self.y;
					self.x = nextX;
					self.y = nextY;
					if (self.intersects(obs)) {
						blocked = true;
					}
					self.x = oldX;
					self.y = oldY;
					if (blocked) break;
				}
			}
			// Level 2: also block corridor walls
			if (!blocked && typeof currentLevel !== "undefined" && currentLevel === 2) {
				var corridorHeight = 520;
				var corridorY = (2732 - corridorHeight) / 2;
				var corridorTop = corridorY;
				var corridorBottom = corridorY + corridorHeight;
				var leftWall = 40;
				var rightWall = 2048 - 40;
				var profesorTop = nextY - 80;
				var profesorBottom = nextY + 80;
				var profesorLeft = nextX - 80;
				var profesorRight = nextX + 80;
				if (profesorTop < corridorTop || profesorBottom > corridorBottom || profesorLeft < leftWall || profesorRight > rightWall) {
					blocked = true;
				}
			}
			// Level 3: block profesor on rocks and map boundaries
			if (!blocked && typeof currentLevel !== "undefined" && currentLevel === 3 && typeof game !== "undefined" && game.level3Obstacles) {
				for (var i = 0; i < game.level3Obstacles.length; i++) {
					var rock = game.level3Obstacles[i];
					var oldX = self.x,
						oldY = self.y;
					self.x = nextX;
					self.y = nextY;
					if (self.intersects(rock)) {
						blocked = true;
					}
					self.x = oldX;
					self.y = oldY;
					if (blocked) break;
				}
				// Map boundaries for profesor in level 3
				var leftWall = 40;
				var rightWall = 2048 - 40;
				var topWall = 40;
				var bottomWall = 2732 - 40;
				var profesorLeft = nextX - 80;
				var profesorRight = nextX + 80;
				var profesorTop = nextY - 80;
				var profesorBottom = nextY + 80;
				if (profesorLeft < leftWall || profesorRight > rightWall || profesorTop < topWall || profesorBottom > bottomWall) {
					blocked = true;
				}
			}
			// Level 4: block profesor on maze walls and soccer balls and map boundaries
			if (!blocked && typeof currentLevel !== "undefined" && currentLevel === 4 && typeof game !== "undefined") {
				// Maze walls
				if (game.level4MazeWalls) {
					for (var i = 0; i < game.level4MazeWalls.length; i++) {
						var wall = game.level4MazeWalls[i];
						var oldX = self.x,
							oldY = self.y;
						self.x = nextX;
						self.y = nextY;
						if (self.intersects(wall)) {
							blocked = true;
						}
						self.x = oldX;
						self.y = oldY;
						if (blocked) break;
					}
				}
				// Soccer balls
				if (!blocked && game.level4SoccerBalls) {
					for (var i = 0; i < game.level4SoccerBalls.length; i++) {
						var ball = game.level4SoccerBalls[i];
						var oldX = self.x,
							oldY = self.y;
						self.x = nextX;
						self.y = nextY;
						if (self.intersects(ball)) {
							blocked = true;
						}
						self.x = oldX;
						self.y = oldY;
						if (blocked) break;
					}
				}
				// Map boundaries for profesor in level 4
				var leftWall = 40;
				var rightWall = 2048 - 40;
				var topWall = 40;
				var bottomWall = 2732 - 40;
				var profesorLeft = nextX - 80;
				var profesorRight = nextX + 80;
				var profesorTop = nextY - 80;
				var profesorBottom = nextY + 80;
				if (profesorLeft < leftWall || profesorRight > rightWall || profesorTop < topWall || profesorBottom > bottomWall) {
					blocked = true;
				}
			}
			// If not blocked, move
			if (!blocked) {
				self.x = nextX;
				self.y = nextY;
			}
		} else {
			self.x = student.x;
			self.y = student.y;
		}
	};
	return self;
});
// Student class: controllable player character
var Student = Container.expand(function () {
	var self = Container.call(this);
	// Attach student asset
	var studentSprite = self.attachAsset('student', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Initial target position is current position
	self.targetX = 300;
	self.targetY = 2732 / 2;
	// Track last position for event logic
	self.lastX = self.x;
	self.lastY = self.y;
	// Update method: move towards target position
	self.update = function () {
		// Store last position
		self.lastX = self.x;
		self.lastY = self.y;
		// Move towards targetX, targetY
		var dx = self.targetX - self.x;
		var dy = self.targetY - self.y;
		var dist = Math.sqrt(dx * dx + dy * dy);
		var speed = 18; // pixels per frame
		if (dist > speed) {
			self.x += dx / dist * speed;
			self.y += dy / dist * speed;
		} else {
			self.x = self.targetX;
			self.y = self.targetY;
		}
	};
	return self;
});

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

/**** 
* Game Code
****/ 
// Level system
// Rocky park floor for level 3 (must be present in asset library)
var currentLevel = 1;
var maxLevel = 4; // Now 4 levels
// Helper to clear all children except joystick and overlays
function clearGameObjects() {
	// Remove all children except overlays and joystick
	for (var i = game.children.length - 1; i >= 0; i--) {
		var child = game.children[i];
		// Don't remove overlays or joystick (which are in LK.gui)
		game.removeChild(child);
	}
	// Clear level 2 obstacles array if present
	if (game.level2Obstacles) {
		game.level2Obstacles.length = 0;
	}
}
// Helper to setup a level
function setupLevel(level) {
	clearGameObjects();
	// Main floor (covers the whole map) - different for each level
	var floorAssetId;
	if (level === 1) {
		floorAssetId = 'floor'; // Default school floor
	} else if (level === 2) {
		floorAssetId = 'floor'; // Piso normal para el nivel 2
	} else if (level === 3) {
		floorAssetId = 'floor_rocky'; // Use a rocky park floor for level 3
	} else if (level === 4) {
		floorAssetId = 'floor_placa'; // Piso de placa para el nivel 4
	}
	var floor = LK.getAsset(floorAssetId, {
		anchorX: 0,
		anchorY: 0,
		x: 0,
		y: 0
	});
	game.addChild(floor);
	// Top and bottom walls (main corridor)
	var wallTop, wallBottom, wallLeft, wallRight;
	if (level === 3) {
		// Level 3: Rocky park, open area with rocks as obstacles and a new door position
		// Remove corridor walls, use only map boundaries
		wallTop = LK.getAsset('wall', {
			x: 0,
			y: 0,
			anchorX: 0,
			anchorY: 0
		});
		wallBottom = LK.getAsset('wall', {
			x: 0,
			y: 2732 - 40,
			anchorX: 0,
			anchorY: 0
		});
		wallLeft = LK.getAsset('wall', {
			width: 40,
			height: 2732,
			x: 0,
			y: 0,
			anchorX: 0,
			anchorY: 0
		});
		wallRight = LK.getAsset('wall', {
			width: 40,
			height: 2732,
			x: 2048 - 40,
			y: 0,
			anchorX: 0,
			anchorY: 0
		});
	} else if (level === 2) {
		// Narrow hallway: corridor is 520px tall, centered vertically
		var corridorHeight = 520;
		var corridorY = (2732 - corridorHeight) / 2;
		wallTop = LK.getAsset('wall', {
			x: 0,
			y: corridorY - 40,
			anchorX: 0,
			anchorY: 0
		});
		wallBottom = LK.getAsset('wall', {
			x: 0,
			y: corridorY + corridorHeight,
			anchorX: 0,
			anchorY: 0
		});
		// Left and right walls (vertical boundaries)
		wallLeft = LK.getAsset('wall', {
			width: 40,
			height: corridorHeight,
			x: 0,
			y: corridorY,
			anchorX: 0,
			anchorY: 0
		});
		wallRight = LK.getAsset('wall', {
			width: 40,
			height: corridorHeight,
			x: 2048 - 40,
			y: corridorY,
			anchorX: 0,
			anchorY: 0
		});
	} else {
		wallTop = LK.getAsset('wall', {
			x: 0,
			y: 0,
			anchorX: 0,
			anchorY: 0
		});
		wallBottom = LK.getAsset('wall', {
			x: 0,
			y: 2732 - 40,
			anchorX: 0,
			anchorY: 0
		});
		wallLeft = LK.getAsset('wall', {
			width: 40,
			height: 2732,
			x: 0,
			y: 0,
			anchorX: 0,
			anchorY: 0
		});
		wallRight = LK.getAsset('wall', {
			width: 40,
			height: 2732,
			x: 2048 - 40,
			y: 0,
			anchorX: 0,
			anchorY: 0
		});
	}
	game.addChild(wallTop);
	game.addChild(wallBottom);
	game.addChild(wallLeft);
	game.addChild(wallRight);
	// Add door (exit) for each level
	if (level === 1) {
		door = LK.getAsset('door', {
			x: 2048 - 200,
			y: 2200,
			anchorX: 0,
			anchorY: 0
		});
	} else if (level === 2) {
		// Level 2: Hallway with open doors as obstacles, exit at the end, profesor behind
		// Place the exit door at the far right end of the hallway, centered in corridor
		var corridorHeight = 520;
		var corridorY = (2732 - corridorHeight) / 2;
		door = LK.getAsset('door', {
			x: 2048 - 200,
			y: corridorY + corridorHeight / 2 - 200,
			anchorX: 0,
			anchorY: 0
		});
		// Add open doors as obstacles along the hallway
		// We'll use furniture assets as open doors (obstacles)
		var numObstacles = 3;
		var spacing = (2048 - 400) / (numObstacles + 1);
		for (var i = 1; i <= numObstacles; i++) {
			var obsX = i * spacing + 100;
			// Obstacles alternate above and below the center line, but always inside the corridor
			var obsY;
			if (i % 2 === 0) {
				obsY = corridorY + 120;
			} else {
				obsY = corridorY + corridorHeight - 120;
			}
			var obstacle = LK.getAsset('furniture', {
				width: 180,
				height: 60,
				anchorX: 0.5,
				anchorY: 0.5,
				x: obsX,
				y: obsY
			});
			game.addChild(obstacle);
			// Store obstacles for collision in global array
			if (!game.level2Obstacles) game.level2Obstacles = [];
			game.level2Obstacles.push(obstacle);
		}
	}
	// Level 3: Add rocky obstacles and new door position
	if (level === 3) {
		// Place the exit door at the top right corner of the park
		door = LK.getAsset('door', {
			x: 2048 - 320,
			y: 180,
			anchorX: 0,
			anchorY: 0
		});
		// Add rocky obstacles (use 'furniture' asset as rocks, but with different positions and sizes)
		var rocks = [{
			x: 600,
			y: 700,
			w: 180,
			h: 120
		}, {
			x: 1200,
			y: 500,
			w: 220,
			h: 100
		}, {
			x: 900,
			y: 1400,
			w: 160,
			h: 160
		}, {
			x: 1500,
			y: 900,
			w: 200,
			h: 120
		}, {
			x: 400,
			y: 2000,
			w: 180,
			h: 120
		}];
		if (!game.level3Obstacles) game.level3Obstacles = [];
		game.level3Obstacles.length = 0;
		for (var i = 0; i < rocks.length; i++) {
			var r = rocks[i];
			var rock = LK.getAsset('furniture', {
				width: r.w,
				height: r.h,
				anchorX: 0.5,
				anchorY: 0.5,
				x: r.x,
				y: r.y
			});
			game.addChild(rock);
			game.level3Obstacles.push(rock);
		}
	}
	// Level 4: Add maze, soccer balls, and door
	if (level === 4) {
		// Place the exit door at the top right of the maze
		door = LK.getAsset('door', {
			x: 2048 - 320,
			y: 180,
			anchorX: 0,
			anchorY: 0
		});
		// Maze walls (using 'wall' asset, horizontal and vertical)
		// Each wall: {x, y, width, height}
		var mazeWalls = [
		// Outer boundaries (already added above, but can reinforce)
		{
			x: 0,
			y: 0,
			width: 2048,
			height: 40
		}, {
			x: 0,
			y: 2732 - 40,
			width: 2048,
			height: 40
		}, {
			x: 0,
			y: 0,
			width: 40,
			height: 2732
		}, {
			x: 2048 - 40,
			y: 0,
			width: 40,
			height: 2732
		},
		// Maze interior (example layout, can be adjusted)
		{
			x: 200,
			y: 400,
			width: 1648,
			height: 40
		}, {
			x: 200,
			y: 800,
			width: 1200,
			height: 40
		}, {
			x: 600,
			y: 1200,
			width: 1200,
			height: 40
		}, {
			x: 200,
			y: 1600,
			width: 1000,
			height: 40
		}, {
			x: 800,
			y: 2000,
			width: 1000,
			height: 40
		}, {
			x: 400,
			y: 2200,
			width: 1200,
			height: 40
		},
		// Vertical walls
		{
			x: 400,
			y: 400,
			width: 40,
			height: 800
		}, {
			x: 800,
			y: 800,
			width: 40,
			height: 800
		}, {
			x: 1200,
			y: 1200,
			width: 40,
			height: 800
		}, {
			x: 1600,
			y: 400,
			width: 40,
			height: 1200
		}, {
			x: 1800,
			y: 1600,
			width: 40,
			height: 800
		}];
		if (!game.level4MazeWalls) game.level4MazeWalls = [];
		game.level4MazeWalls.length = 0;
		for (var i = 0; i < mazeWalls.length; i++) {
			var mw = mazeWalls[i];
			var wall = LK.getAsset('wall', {
				width: mw.width,
				height: mw.height,
				x: mw.x,
				y: mw.y,
				anchorX: 0,
				anchorY: 0
			});
			game.addChild(wall);
			game.level4MazeWalls.push(wall);
		}
		// Soccer balls as obstacles (use 'furniture' asset, but could be replaced with a soccer ball asset)
		// Place many balls scattered in the maze
		var soccerBalls = [{
			x: 300,
			y: 600
		}, {
			x: 500,
			y: 900
		}, {
			x: 700,
			y: 500
		}, {
			x: 900,
			y: 1300
		}, {
			x: 1100,
			y: 700
		}, {
			x: 1300,
			y: 1100
		}, {
			x: 1500,
			y: 1500
		}, {
			x: 1700,
			y: 1900
		}, {
			x: 600,
			y: 1700
		}, {
			x: 800,
			y: 2100
		}, {
			x: 1000,
			y: 2300
		}, {
			x: 1200,
			y: 1900
		}, {
			x: 1400,
			y: 2100
		}, {
			x: 1600,
			y: 2300
		}, {
			x: 1800,
			y: 2100
		}, {
			x: 1800,
			y: 400
		}, {
			x: 400,
			y: 2000
		}, {
			x: 600,
			y: 2200
		}, {
			x: 900,
			y: 1800
		}, {
			x: 1100,
			y: 1500
		}];
		if (!game.level4SoccerBalls) game.level4SoccerBalls = [];
		game.level4SoccerBalls.length = 0;
		for (var i = 0; i < soccerBalls.length; i++) {
			var sb = soccerBalls[i];
			var ball = LK.getAsset('furniture', {
				width: 100,
				height: 100,
				anchorX: 0.5,
				anchorY: 0.5,
				x: sb.x,
				y: sb.y
			});
			game.addChild(ball);
			game.level4SoccerBalls.push(ball);
		}
	}
	game.addChild(door);
	// Add student (player) and center camera on them
	student = new Student();
	if (level === 1) {
		student.x = 300;
		student.y = 2732 / 2;
	} else if (level === 2) {
		// Start at the far left of the hallway
		student.x = 200;
		student.y = 2732 / 2;
	} else if (level === 3) {
		// Start at bottom left of the park
		student.x = 200;
		student.y = 2400;
	} else if (level === 4) {
		// Start at bottom left of the maze
		student.x = 120;
		student.y = 2600;
	}
	game.addChild(student);
	// Add profesor (monster) as an AI-driven monster
	profesor = new ProfesorMonster();
	if (level === 1) {
		profesor.x = 1600;
		profesor.y = 2732 / 2;
	} else if (level === 2) {
		// Profesor starts behind the student, at the left edge
		profesor.x = 60;
		profesor.y = 2732 / 2;
		// Make profesor slower for this level
		profesor.level2Slow = true;
	} else if (level === 3) {
		// Profesor starts at the center of the park
		profesor.x = 1024;
		profesor.y = 900;
	} else if (level === 4) {
		// Profesor starts at the bottom of the maze, far from the student
		profesor.x = 1800;
		profesor.y = 2600;
	}
	game.addChild(profesor);
	// Camera offset for 3rd person (centered on student)
	cameraOffsetX = 1024; // half width
	cameraOffsetY = 1366; // half height
	// Reset popup/question state
	showMathQuestion = false;
	mathQuestionPopup = null;
}
var door, student, profesor, cameraOffsetX, cameraOffsetY;
setupLevel(currentLevel);
// Camera follow logic
game.update = function () {
	// Update student
	if (student.update) student.update();
	// Level 2: Check collision with obstacles (open doors)
	if (currentLevel === 2 && game.level2Obstacles && student) {
		for (var i = 0; i < game.level2Obstacles.length; i++) {
			var obs = game.level2Obstacles[i];
			if (student.intersects(obs)) {
				// Block movement: revert to last position and prevent further movement in this update
				student.x = student.lastX;
				student.y = student.lastY;
				// Also update targetX/targetY so the student doesn't keep trying to move into the obstacle
				student.targetX = student.lastX;
				student.targetY = student.lastY;
				break; // Stop checking further obstacles this frame
			}
		}
		// Corridor wall collision (block student from passing through corridor)
		// Get corridor bounds from setupLevel
		var corridorHeight = 520;
		var corridorY = (2732 - corridorHeight) / 2;
		var corridorTop = corridorY;
		var corridorBottom = corridorY + corridorHeight;
		// Student's bounding box
		var studentTop = student.y - 60;
		var studentBottom = student.y + 60;
		// If student tries to go above the corridor
		if (studentTop < corridorTop) {
			student.y = corridorTop + 60;
		}
		// If student tries to go below the corridor
		if (studentBottom > corridorBottom) {
			student.y = corridorBottom - 60;
		}
		// Block left and right walls
		var leftWall = 40;
		var rightWall = 2048 - 40;
		var studentLeft = student.x - 60;
		var studentRight = student.x + 60;
		if (studentLeft < leftWall) {
			student.x = leftWall + 60;
		}
		if (studentRight > rightWall) {
			student.x = rightWall - 60;
		}
	}
	// Level 3: Check collision with rocky obstacles
	if (currentLevel === 3 && game.level3Obstacles && student) {
		for (var i = 0; i < game.level3Obstacles.length; i++) {
			var rock = game.level3Obstacles[i];
			if (student.intersects(rock)) {
				// Block movement: revert to last position and prevent further movement in this update
				student.x = student.lastX;
				student.y = student.lastY;
				student.targetX = student.lastX;
				student.targetY = student.lastY;
				break;
			}
		}
		// Block map boundaries
		var leftWall = 40;
		var rightWall = 2048 - 40;
		var topWall = 40;
		var bottomWall = 2732 - 40;
		var studentLeft = student.x - 60;
		var studentRight = student.x + 60;
		var studentTop = student.y - 60;
		var studentBottom = student.y + 60;
		if (studentLeft < leftWall) {
			student.x = leftWall + 60;
		}
		if (studentRight > rightWall) {
			student.x = rightWall - 60;
		}
		if (studentTop < topWall) {
			student.y = topWall + 60;
		}
		if (studentBottom > bottomWall) {
			student.y = bottomWall - 60;
		}
	}
	// Level 4: Check collision with maze walls and soccer balls
	if (currentLevel === 4 && student) {
		// Maze wall collision
		if (game.level4MazeWalls) {
			for (var i = 0; i < game.level4MazeWalls.length; i++) {
				var wall = game.level4MazeWalls[i];
				if (student.intersects(wall)) {
					student.x = student.lastX;
					student.y = student.lastY;
					student.targetX = student.lastX;
					student.targetY = student.lastY;
					break;
				}
			}
		}
		// Soccer ball collision
		if (game.level4SoccerBalls) {
			for (var i = 0; i < game.level4SoccerBalls.length; i++) {
				var ball = game.level4SoccerBalls[i];
				if (student.intersects(ball)) {
					student.x = student.lastX;
					student.y = student.lastY;
					student.targetX = student.lastX;
					student.targetY = student.lastY;
					break;
				}
			}
		}
		// Block map boundaries
		var leftWall = 40;
		var rightWall = 2048 - 40;
		var topWall = 40;
		var bottomWall = 2732 - 40;
		var studentLeft = student.x - 60;
		var studentRight = student.x + 60;
		var studentTop = student.y - 60;
		var studentBottom = student.y + 60;
		if (studentLeft < leftWall) {
			student.x = leftWall + 60;
		}
		if (studentRight > rightWall) {
			student.x = rightWall - 60;
		}
		if (studentTop < topWall) {
			student.y = topWall + 60;
		}
		if (studentBottom > bottomWall) {
			student.y = bottomWall - 60;
		}
	}
	// Update profesor monster AI
	if (profesor.update) {
		// Slow profesor in level 2
		if (currentLevel === 2 && profesor.level2Slow) {
			// Temporarily override update to move slower
			var oldSpeed = 6;
			profesor.update = function () {
				this.lastX = this.x;
				this.lastY = this.y;
				if (typeof showMathQuestion !== "undefined" && showMathQuestion || typeof student !== "undefined" && typeof student.lastWasIntersectingDoor !== "undefined" && student.lastWasIntersectingDoor) {
					return;
				}
				if (typeof student === "undefined" || !student) return;
				var dx = student.x - this.x;
				var dy = student.y - this.y;
				var dist = Math.sqrt(dx * dx + dy * dy);
				var speed = 3; // slower speed for level 2
				if (dist > speed) {
					this.x += dx / dist * speed;
					this.y += dy / dist * speed;
				} else {
					this.x = student.x;
					this.y = student.y;
				}
			};
		}
		profesor.update();
	}
	// Check for kill: profesor touches student (collision)
	var isIntersecting = profesor.intersects(student);
	if (!profesor.lastWasIntersecting && isIntersecting) {
		// Profesor kills student: show game over
		LK.effects.flashScreen(0xff0000, 1000);
		// Reset to level 1 after game over
		currentLevel = 1;
		LK.setTimeout(function () {
			setupLevel(currentLevel);
		}, 1200);
		LK.showGameOver();
	}
	profesor.lastWasIntersecting = isIntersecting;
	// Check if student touches the door (minimum contact triggers question)
	if ((typeof showMathQuestion === "undefined" || !showMathQuestion) && door && student && !student.lastWasIntersectingDoor && student.intersects(door)) {
		showMathQuestion = true;
		student.lastWasIntersectingDoor = true;
		// Show the math question in-game as a fullscreen overlay with large, high-contrast text and options
		if (typeof mathQuestionPopup === "undefined" || !mathQuestionPopup) {
			mathQuestionPopup = new Container();
			// Fullscreen transparent background (no purple, just to block input)
			var bg = LK.getAsset('furniture', {
				width: 2048,
				height: 2732,
				color: 0x000000,
				anchorX: 0,
				anchorY: 0
			});
			bg.alpha = 0.01; // almost invisible, just to block input
			mathQuestionPopup.addChild(bg);
			// Define questions and answers for each level/door
			// You can expand this array for more levels/doors
			var questions = [{
				question: "¿Cuánto es 8 × 6?",
				options: [{
					text: "1) 42",
					correct: false
				}, {
					text: "2) 48",
					correct: true
				}, {
					text: "3) 54",
					correct: false
				}]
			}, {
				question: "¿Cuánto es 7 × 22?",
				options: [{
					text: "1) 144",
					correct: false
				}, {
					text: "2) 154",
					correct: true
				}, {
					text: "3) 127",
					correct: false
				}]
			}, {
				question: "¿Cuánto es 13 × 5?",
				options: [{
					text: "1) 65",
					correct: true
				}, {
					text: "2) 45",
					correct: false
				}, {
					text: "3) 75",
					correct: false
				}]
			}];
			// Pick question by level (default to first if out of range)
			var qIndex = typeof currentLevel !== "undefined" && currentLevel - 1 < questions.length ? currentLevel - 1 : 0;
			var qData = questions[qIndex];
			// Question text - very large, high-contrast, centered
			var questionText = new Text2(qData.question, {
				size: 180,
				fill: 0xFFF700 // bright yellow for contrast
			});
			questionText.anchor.set(0.5, 0);
			questionText.x = 2048 / 2;
			questionText.y = 320;
			mathQuestionPopup.addChild(questionText);
			// Render options
			var optionYStart = 800;
			var optionYStep = 300;
			var optionObjs = [];
			for (var i = 0; i < qData.options.length; i++) {
				var opt = qData.options[i];
				var optObj = new Text2(opt.text, {
					size: 140,
					fill: 0xFFFFFF
				});
				optObj.anchor.set(0.5, 0);
				optObj.x = 2048 / 2;
				optObj.y = optionYStart + i * optionYStep;
				mathQuestionPopup.addChild(optObj);
				optionObjs.push(optObj);
				// Add interaction for options
				optObj.interactive = true;
				optObj.buttonMode = true;
				if (opt.correct) {
					optObj.down = function () {
						LK.effects.flashScreen(0x00ff00, 800);
						// Open the door: remove it from the game scene
						if (door && door.parent) {
							door.parent.removeChild(door);
							door = null;
						}
						if (mathQuestionPopup && mathQuestionPopup.parent) mathQuestionPopup.parent.removeChild(mathQuestionPopup);
						mathQuestionPopup = null;
						showMathQuestion = false;
						// Advance to next level or win
						if (typeof currentLevel !== "undefined" && typeof maxLevel !== "undefined") {
							if (currentLevel < maxLevel) {
								currentLevel += 1;
								setupLevel(currentLevel);
							} else {
								LK.showYouWin();
							}
						}
					};
				} else {
					optObj.down = function () {
						LK.effects.flashScreen(0xff0000, 800);
						// Reset to level 1 after game over
						currentLevel = 1;
						LK.setTimeout(function () {
							setupLevel(currentLevel);
						}, 1000);
						LK.showGameOver();
						if (mathQuestionPopup && mathQuestionPopup.parent) mathQuestionPopup.parent.removeChild(mathQuestionPopup);
						mathQuestionPopup = null;
						showMathQuestion = false;
					};
				}
			}
			// Fullscreen, no pivot, top-left at (0,0)
			mathQuestionPopup.x = 0;
			mathQuestionPopup.y = 0;
			game.addChild(mathQuestionPopup);
		}
	}
	// Track lastX for student for event logic
	student.lastX = student.x;
	student.lastY = student.y;
	// Track last intersection with door for event logic
	if (door && student) {
		if (typeof student.lastWasIntersectingDoor === "undefined") student.lastWasIntersectingDoor = false;
		var nowIntersectingDoor = student.intersects(door);
		student.lastWasIntersectingDoor = nowIntersectingDoor;
	}
	// Camera follows student from behind (3rd person, offset behind student direction)
	var dx = student.targetX - student.x;
	var dy = student.targetY - student.y;
	var dist = Math.sqrt(dx * dx + dy * dy);
	var camBehindDist = 350; // Distance behind the student
	var camX, camY;
	if (dist > 10) {
		// Camera is offset behind the student, in the opposite direction of movement
		camX = student.x - dx / dist * camBehindDist;
		camY = student.y - dy / dist * camBehindDist;
	} else {
		// If not moving, camera stays slightly above/behind
		camX = student.x - camBehindDist;
		camY = student.y;
	}
	// Clamp camera to map bounds
	camX = Math.max(0, Math.min(camX, 2048 - 2048));
	camY = Math.max(0, Math.min(camY, 2732 - 2732));
	game.x = -camX;
	game.y = -camY;
};
// On-screen joystick controls for student movement
// Joystick visual base
var joystickBase = LK.getAsset('furniture', {
	width: 260,
	height: 260,
	color: 0x222222,
	anchorX: 0.5,
	anchorY: 0.5,
	x: 260,
	y: 2732 - 260
});
joystickBase.alpha = 0.25;
LK.gui.left.addChild(joystickBase);
// Joystick thumb
var joystickThumb = LK.getAsset('furniture', {
	width: 120,
	height: 120,
	color: 0xffffff,
	anchorX: 0.5,
	anchorY: 0.5,
	x: 260,
	y: 2732 - 260
});
joystickThumb.alpha = 0.7;
LK.gui.left.addChild(joystickThumb);
var joystickActive = false;
var joystickStartX = 0;
var joystickStartY = 0;
var joystickRadius = 110;
// Helper to convert GUI to game coordinates
function guiToGameCoords(guiX, guiY) {
	// For this game, joystick is always at bottom left, so just return as is
	return {
		x: guiX,
		y: guiY
	};
}
// Joystick down
joystickBase.interactive = true;
joystickBase.buttonMode = true;
joystickBase.down = function (x, y, obj) {
	joystickActive = true;
	joystickStartX = joystickBase.x;
	joystickStartY = joystickBase.y;
	joystickThumb.x = x;
	joystickThumb.y = y;
};
// Joystick move
joystickBase.move = function (x, y, obj) {
	if (!joystickActive) return;
	var dx = x - joystickStartX;
	var dy = y - joystickStartY;
	var dist = Math.sqrt(dx * dx + dy * dy);
	if (dist > joystickRadius) {
		dx = dx / dist * joystickRadius;
		dy = dy / dist * joystickRadius;
	}
	joystickThumb.x = joystickStartX + dx;
	joystickThumb.y = joystickStartY + dy;
	// Move student target relative to joystick direction
	var moveStrength = dist > 20 ? 1 : 0; // Deadzone
	if (moveStrength) {
		// Map joystick to game area
		var moveX = student.x + dx * 3;
		var moveY = student.y + dy * 3;
		student.targetX = Math.max(60, Math.min(2048 - 60, moveX));
		student.targetY = Math.max(60, Math.min(2732 - 60, moveY));
	}
};
// Joystick up
joystickBase.up = function (x, y, obj) {
	joystickActive = false;
	joystickThumb.x = joystickBase.x;
	joystickThumb.y = joystickBase.y;
};
// Also allow drag-to-move for desktop or direct touch
game.down = function (x, y, obj) {
	if (!joystickActive) {
		student.targetX = x;
		student.targetY = y;
	}
};
game.move = function (x, y, obj) {
	if (!joystickActive) {
		student.targetX = x;
		student.targetY = y;
	}
};
game.up = function (x, y, obj) {
	// No-op for now
};