code: public Animation getAnimation(String name)
      {
          final Animation animation = animations.get(name);
          if (animation == null)
          {
              throw new LionEngineException(ERROR_NOT_FOUND + name);
          }
          return animation;
      }
docs: Get an animation data from its name.
  
  @param name The animation name.
  @return The animation reference.
  @throws LionEngineException If the animation with the specified name is not found.