docs: def expand(self,delta_width,delta_height):
          '''Makes the cloud surface bigger. Maintains all word positions.'''
          temp_surface = pygame.Surface((self.width + delta_width,self.height + delta_height))
          (self.width,self.height) = (self.width + delta_width, self.height + delta_height)
          temp_surface.blit(self.cloud,(0,0))
          self.cloud = temp_surface