/**** 
* 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;
		// 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 = 12; // profesor speed, slightly slower than student
		// Predict next position
		var nextX = self.x;
		var nextY = self.y;
		if (dist > speed) {
			nextX += dx / dist * speed;
			nextY += dy / dist * speed;
		} else {
			nextX = student.x;
			nextY = student.y;
		}
		// List of all furniture and wall objects to check collision
		var colliders = [wallTop, wallBottom, wallLeft, wallRight, classroom1, classroom2, classroom3, classroom4, library, chapel, cancha, furniture3, furniture4, furniture5];
		// Try moving in X, then Y, blocking if collision
		var oldX = self.x;
		var oldY = self.y;
		// Try X movement
		self.x = nextX;
		var collided = false;
		for (var i = 0; i < colliders.length; i++) {
			if (self.intersects(colliders[i])) {
				collided = true;
				break;
			}
		}
		if (collided) {
			self.x = oldX; // revert X
		}
		// Try Y movement
		self.y = nextY;
		collided = false;
		for (var i = 0; i < colliders.length; i++) {
			if (self.intersects(colliders[i])) {
				collided = true;
				break;
			}
		}
		if (collided) {
			self.y = oldY; // revert 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
		// Predict next position
		var nextX = self.x;
		var nextY = self.y;
		if (dist > speed) {
			nextX += dx / dist * speed;
			nextY += dy / dist * speed;
		} else {
			nextX = self.targetX;
			nextY = self.targetY;
		}
		// List of all furniture and wall objects to check collision
		var colliders = [wallTop, wallBottom, wallLeft, wallRight, classroom1, classroom2, classroom3, classroom4, library, chapel, cancha, furniture3, furniture4, furniture5];
		// Try moving in X, then Y, blocking if collision
		var oldX = self.x;
		var oldY = self.y;
		// Try X movement
		self.x = nextX;
		var collided = false;
		for (var i = 0; i < colliders.length; i++) {
			if (self.intersects(colliders[i])) {
				collided = true;
				break;
			}
		}
		if (collided) {
			self.x = oldX; // revert X
		}
		// Try Y movement
		self.y = nextY;
		collided = false;
		for (var i = 0; i < colliders.length; i++) {
			if (self.intersects(colliders[i])) {
				collided = true;
				break;
			}
		}
		if (collided) {
			self.y = oldY; // revert Y
		}
	};
	return self;
});

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

/**** 
* Game Code
****/ 
// Main floor (covers the whole map)
// Expand the map: create a large school with multiple areas
var floor = LK.getAsset('floor', {
	anchorX: 0,
	anchorY: 0,
	x: 0,
	y: 0
});
game.addChild(floor);
// Top and bottom walls (main corridor)
var wallTop = LK.getAsset('wall', {
	x: 0,
	y: 0,
	anchorX: 0,
	anchorY: 0
});
var wallBottom = LK.getAsset('wall', {
	x: 0,
	y: 2732 - 40,
	anchorX: 0,
	anchorY: 0
});
game.addChild(wallTop);
game.addChild(wallBottom);
// Left and right walls (vertical boundaries)
var wallLeft = LK.getAsset('wall', {
	width: 40,
	height: 2732,
	x: 0,
	y: 0,
	anchorX: 0,
	anchorY: 0
});
var wallRight = LK.getAsset('wall', {
	width: 40,
	height: 2732,
	x: 2048 - 40,
	y: 0,
	anchorX: 0,
	anchorY: 0
});
game.addChild(wallLeft);
game.addChild(wallRight);
// Classrooms (rectangular furniture blocks)
var classroom1 = LK.getAsset('furniture', {
	x: 300,
	y: 400,
	anchorX: 0.5,
	anchorY: 0.5
});
var classroom2 = LK.getAsset('furniture', {
	x: 300,
	y: 900,
	anchorX: 0.5,
	anchorY: 0.5
});
var classroom3 = LK.getAsset('furniture', {
	x: 300,
	y: 1400,
	anchorX: 0.5,
	anchorY: 0.5
});
var classroom4 = LK.getAsset('furniture', {
	x: 300,
	y: 2000,
	anchorX: 0.5,
	anchorY: 0.5
});
game.addChild(classroom1);
game.addChild(classroom2);
game.addChild(classroom3);
game.addChild(classroom4);
// Library (bigger furniture block)
var library = LK.getAsset('furniture', {
	x: 800,
	y: 400,
	width: 400,
	height: 200,
	anchorX: 0.5,
	anchorY: 0.5
});
game.addChild(library);
// Chapel (bigger furniture block)
var chapel = LK.getAsset('furniture', {
	x: 1700,
	y: 400,
	width: 300,
	height: 200,
	anchorX: 0.5,
	anchorY: 0.5
});
game.addChild(chapel);
// Sports field (large open area, visually represented by a big furniture block)
var cancha = LK.getAsset('furniture', {
	x: 1200,
	y: 2000,
	width: 700,
	height: 400,
	anchorX: 0.5,
	anchorY: 0.5
});
game.addChild(cancha);
// More hiding furniture (lockers, benches, etc.)
var furniture3 = LK.getAsset('furniture', {
	x: 600,
	y: 1200,
	anchorX: 0.5,
	anchorY: 0.5
});
var furniture4 = LK.getAsset('furniture', {
	x: 1800,
	y: 1800,
	anchorX: 0.5,
	anchorY: 0.5
});
var furniture5 = LK.getAsset('furniture', {
	x: 1000,
	y: 2500,
	anchorX: 0.5,
	anchorY: 0.5
});
game.addChild(furniture3);
game.addChild(furniture4);
game.addChild(furniture5);
// Add door (exit) at far right, near the sports field
var door = LK.getAsset('door', {
	x: 2048 - 200,
	y: 2200,
	anchorX: 0,
	anchorY: 0
});
game.addChild(door);
// Add student (player) and center camera on them
var student = new Student();
student.x = 300;
student.y = 2732 / 2;
game.addChild(student);
// Add profesor (monster) as an AI-driven monster
var profesor = new ProfesorMonster();
profesor.x = 1600;
profesor.y = 2732 / 2;
game.addChild(profesor);
// Camera offset for 3rd person (centered on student)
var cameraOffsetX = 1024; // half width
var cameraOffsetY = 1366; // half height
// Camera follow logic
game.update = function () {
	// Update student
	if (student.update) student.update();
	// Update profesor monster AI
	if (profesor.update) 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);
		LK.showGameOver();
	}
	profesor.lastWasIntersecting = isIntersecting;
	// Check if student reaches the door (first time)
	if ((typeof showMathQuestion === "undefined" || !showMathQuestion) &&
	// Only trigger once
	student.lastX + 60 < door.x &&
	// 60 is half student width, so center
	student.x + 60 >= door.x &&
	// Crossed the door's X
	Math.abs(student.y - (door.y + 100)) < 120 // Y is close to door center (door height is 200)
	) {
		showMathQuestion = true;
		// Pause student and profesor movement
		studentPaused = true;
		profesorPaused = true;
		// Create question UI
		if (typeof mathQuestionGroup !== "undefined" && mathQuestionGroup) {
			mathQuestionGroup.destroy();
		}
		mathQuestionGroup = new Container();
		// Question text
		var questionText = new Text2("¿Cuánto es 7 × 2?", {
			size: 100,
			fill: "#fff"
		});
		questionText.anchor.set(0.5, 0);
		questionText.x = 2048 / 2;
		questionText.y = 400;
		mathQuestionGroup.addChild(questionText);
		// Option 1: 13
		var option1 = new Text2("1) 13", {
			size: 90,
			fill: "#fff"
		});
		option1.anchor.set(0.5, 0);
		option1.x = 2048 / 2;
		option1.y = 600;
		mathQuestionGroup.addChild(option1);
		// Option 2: 14 (correct)
		var option2 = new Text2("2) 14", {
			size: 90,
			fill: "#fff"
		});
		option2.anchor.set(0.5, 0);
		option2.x = 2048 / 2;
		option2.y = 800;
		mathQuestionGroup.addChild(option2);
		// Option 3: 2
		var option3 = new Text2("3) 2", {
			size: 90,
			fill: "#fff"
		});
		option3.anchor.set(0.5, 0);
		option3.x = 2048 / 2;
		option3.y = 1000;
		mathQuestionGroup.addChild(option3);
		// Add to GUI overlay (centered)
		LK.gui.center.addChild(mathQuestionGroup);
		// Option selection logic
		mathQuestionGroup.down = function (x, y, obj) {
			// Convert to local coordinates
			var localY = y;
			// Option 1
			if (localY >= option1.y && localY < option1.y + 150) {
				// Incorrect
				LK.effects.flashScreen(0xff0000, 600);
				LK.showGameOver();
			}
			// Option 2 (correct)
			else if (localY >= option2.y && localY < option2.y + 150) {
				// Correct
				LK.effects.flashScreen(0x00ff00, 600);
				LK.showYouWin();
			}
			// Option 3
			else if (localY >= option3.y && localY < option3.y + 150) {
				// Incorrect
				LK.effects.flashScreen(0xff0000, 600);
				LK.showGameOver();
			}
		};
		// Forward events to group
		LK.gui.center.down = function (x, y, obj) {
			if (mathQuestionGroup && mathQuestionGroup.down) {
				mathQuestionGroup.down(x, y, obj);
			}
		};
	}
	// Track lastX for student for event logic
	student.lastX = student.x;
	student.lastY = student.y;
	// 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;
};
// Drag-to-move logic (touch/mouse)
game.down = function (x, y, obj) {
	// Move student to touch position (convert to game coordinates)
	student.targetX = x;
	student.targetY = y;
};
game.move = function (x, y, obj) {
	student.targetX = x;
	student.targetY = y;
};
game.up = function (x, y, obj) {
	// No-op for now
};

===================================================================
--- original.js
+++ change.js