"""Class for the various animals in the game"""

import pygame
from pgu.vid import Sprite

import data

class Animal(Sprite):
   """Base class for animals"""

   def __init__(self, image, pos):
       Sprite.__init__(self, image, pos)
       self.pos = pos

   def loop(self, tv, _sprite):
       ppos = tv.tile_to_view(self.pos)
       self.rect.x = ppos[0]
       self.rect.y = ppos[1]

   def move(self, state):
      """Given the game state, return a new position for the object"""
      # Default is not to move
      return self.pos

class Chicken(Animal):
   """A chicken"""

   def __init__(self, pos):
       image = pygame.image.load(data.filepath('sprites/chkn.png'))
       Animal.__init__(self, image, pos)

   def move(self, gameboard):
       """A free chicken will move away from other free chickens"""
       return self.pos

class Egg(Animal):
   """An egg"""

   # Eggs don't move

class Fox(Animal):
   """A fox"""

   def __init__(self, pos):
       image = pygame.image.load(data.filepath('sprites/fox.png'))
       Animal.__init__(self, image, pos)

   def move(self, gameboard):
       """Foxes will aim to move towards the closest henhouse or free
          chicken"""
       return self.pos