Add: animal_list for typing practice and test

src/game/lib/animal.js

@@ -10,6 +10,10 @@ function Animal(type, x, y) {
 }
 
 
+Animal.prototype.setScale = function(value) {
+	this.sprite.scale.set(value);
+}
+
 Animal.prototype.setIconSprite = function(species) {
 	this.setSpecies(species);