===================================================================
--- original.js
+++ change.js
@@ -1,4 +1,65 @@
+var Teacher = Container.expand(function () {
+	var self = Container.call(this);
+	self.teacherGraphics = self.createAsset('teacher', 'Teacher Graphics', 0.5, 0.5);
+	self.educate = function (villager) {
+		if (villager.iq < 200) {
+			villager.iq += 0.1;
+			if (villager.iq > 200) villager.iq = 200;
+		}
+	};
+	LK.on('tick', function () {
+		self.parent.villagers.forEach(self.educate);
+	});
+});
+var Guardian = Container.expand(function () {
+	var self = Container.call(this);
+	self.guardianGraphics = self.createAsset('guardian', 'Guardian Graphics', 0.5, 0.5);
+	self.protect = function (villager) {};
+	LK.on('tick', function () {});
+});
+var Entertainer = Container.expand(function () {
+	var self = Container.call(this);
+	self.entertainerGraphics = self.createAsset('entertainer', 'Entertainer Graphics', 0.5, 0.5);
+	self.entertain = function (villager) {
+		if (villager.happiness < 100) {
+			villager.happiness += 1;
+			if (villager.happiness > 100) villager.happiness = 100;
+		}
+	};
+	LK.on('tick', function () {
+		self.parent.villagers.forEach(self.entertain);
+	});
+});
+var Builder = Container.expand(function () {
+	var self = Container.call(this);
+	self.builderGraphics = self.createAsset('builder', 'Builder Graphics', 0.5, 0.5);
+	self.buildingProgress = 0;
+	self.build = function (building) {
+		if (!building.isComplete) {
+			self.buildingProgress += 1;
+			if (self.buildingProgress >= 100) {
+				building.isComplete = true;
+				self.buildingProgress = 0;
+			}
+		}
+	};
+});
+var Healer = Container.expand(function (resources) {
+	var self = Container.call(this);
+	self.healerGraphics = self.createAsset('healer', 'Healer Graphics', 0.5, 0.5);
+	self.gameResources = resources;
+	self.healingPower = 5;
+	self.heal = function (villager) {
+		if (villager.health < 100) {
+			villager.health += self.healingPower;
+			if (villager.health > 100) villager.health = 100;
+		}
+	};
+	LK.on('tick', function () {
+		self.parent.villagers.forEach(self.heal);
+	});
+});
 var TownCrier = Container.expand(function () {
 	var self = Container.call(this);
 	self.crierGraphics = self.createAsset('townCrier', 'Town Crier Graphics', 0.5, 0.5);
 	self.x = 2048 / 2;
@@ -372,15 +433,14 @@
 	self.move = function () {
 		var dx = self.targetX - self.x;
 		var dy = self.targetY - self.y;
 		var distance = Math.sqrt(dx * dx + dy * dy);
-		var iqFactor = self.iq / 100;
 		if (distance < 5) {
 			self.targetX = Math.random() * 2048;
 			self.targetY = Math.random() * 2732;
 		} else {
-			self.x += dx / distance * self.speed * iqFactor;
-			self.y += dy / distance * self.speed * iqFactor;
+			self.x += dx / distance * self.speed;
+			self.y += dy / distance * self.speed;
 		}
 	};
 	LK.on('tick', function () {
 		self.move();