from TractorAction import changeFieldState
from constants import *
import pygame


def manualSteeringDriver(event, board, tractor, hitchCounter, tillageUnit, loadCounter):
    if event.key == pygame.K_SPACE:
        field = board[tractor.horizontal_index][tractor.vertical_index]
        field.state = changeFieldState(field, tractor)
    if event.key == pygame.K_q:
        hitchCounter = (hitchCounter + 1) % 3
        if hitchCounter == 0:
            tractor.hitch = "Crop Trailer"
        if hitchCounter == 1:
            tractor.hitch = tillageUnit
        if hitchCounter == 2:
            tractor.hitch = "Nothing"
    if event.key == pygame.K_w:
        if tractor.header:
            tractor.header = False
        else:
            tractor.header = True
    if event.key == pygame.K_e:
        loadCounter = (loadCounter + 1) % 4
        if loadCounter == 0:
            tillageUnit.load = "Nothing"
        elif loadCounter == 1:
            tillageUnit.load = "Seeds"
        elif loadCounter == 2:
            tillageUnit.load = "Water"
        elif loadCounter == 3:
            tillageUnit.load = "Fertilizer"

    if event.key == pygame.K_m:
        tractor.drive()

    if event.key == pygame.K_r:
        if tractor.engineWorking:
            tractor.turnOffEngine()
        else:
            tractor.turnOnEngine()
    if event.key == pygame.K_t:
        if tractor.autodrive:
            tractor.autodrive = False

        else:
            tractor.autodrive = True

    manualTurning(event, tractor)
    return hitchCounter, loadCounter


def manualTurning(event, tractor):
    if event.type == pygame.KEYDOWN:
        if event.key == pygame.K_LEFT and tractor.horizontal_index > 0:
            tractor.direction = "LEFT"
        elif event.key == pygame.K_RIGHT and tractor.horizontal_index < HORIZONTAL_TILES_NUMBER - 1:
            tractor.direction = "RIGHT"
        elif event.key == pygame.K_UP and tractor.vertical_index > 0:
            tractor.direction = "UP"
        elif event.key == pygame.K_DOWN and tractor.vertical_index < VERTICAL_TILES_NUMBER - 1:
            tractor.direction = "DOWN"