import pygame
from tile import Tile
from tractor import Tractor

class Field:
    def __init__(self):
        self.tiles = pygame.sprite.Group()
        for x in range(256):
            self.tiles.add(Tile(x, 'grass', self))
        self.tractor = Tractor(self)

    def draw(self, surface):
        self.tiles.draw(surface)
        self.tractor.draw(surface)