import pygame
import os
class Tractor(pygame.sprite.Sprite):
    def __init__(self, field):
        super().__init__
        self.field = field
        self.image = pygame.image.load('images/tractor.png').convert_alpha()
        self.image = pygame.transform.scale(self.image, (64, 64))
        self.rect = self.image.get_rect()
        x, y = 0, 0
        self.rect.topleft = (x, y)

    def draw(self, surface):
        surface.blit(self.image, self.rect)

    def move(self, direction):
        if direction == "up":
            self.rect.y -= 64
        elif direction == "down":
            self.rect.y += 64
        elif direction == "left":
            self.rect.x -= 64
        elif direction == "right":
            self.rect.x += 64

    def update(self):
        keys = pygame.key.get_pressed()
        if keys[pygame.K_LEFT]:
            self.move('left')    
        if keys[pygame.K_RIGHT]:
            self.move('right')
        if keys[pygame.K_UP]:
            self.move('up')
        if keys[pygame.K_DOWN]:
            self.move('down')