Игры для командной строки windows

код

from time import sleep
from os import system
OUTPUT_IMAGE = [
      [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
      [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
      [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
      [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
      [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
      [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
      [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
      [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
      [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
      [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
      [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
      ]

def SetImage(x: int, y: int, image: str):
  x_start = x
  x = x
  y = y
  for word in image:
      if word == "\n":
          x = x_start
          y += 1
      else:
          x += 1
          try:
            OUTPUT_IMAGE[y][x] = word
          except IndexError:
              break
while True:
      sleep(1)
      system("cls||clear")
      SetImage(x=3,y=4,image=" O\n'|'\n |")
      for line_words in OUTPUT_IMAGE:
             for word in line_words:
                 print(word, end="")
             print("\n", end="")
      OUTPUT_IMAGE = [
            [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
            [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
            [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
            [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
            [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
            [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
            [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
            [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
            [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
            [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
            [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
            ]

код

from time import sleep
from os import system
OUTPUT_IMAGE = [
      [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
      [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
      [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
      [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
      [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
      [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
      [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
      [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
      [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
      [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
      [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
      ]
px = 0
py = 0
def SetImage(x: int, y: int, image: str):
  x_start = x
  x = x
  y = y
  for word in image:
      if word == "\n":
          x = x_start
          y += 1
      else:
          x += 1
          try:
            OUTPUT_IMAGE[y][x] = word
          except IndexError:
              break
while True:
      sleep(1)
      system("cls||clear")
      SetImage(x=px,y=py,image=" O\n'|'\n |")
      for line_words in OUTPUT_IMAGE:
             for word in line_words:
                 print(word, end="")
             print("\n", end="")
      px += 1
      py += 1
      OUTPUT_IMAGE = [
            [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
            [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
            [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
            [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
            [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
            [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
            [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
            [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
            [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
            [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
            [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
            ]

Зачем здесь ValueError except?

Он здесь чтобы предотвратить ошибку при запуске игры.

код с рисовкой и вычислением широты и высоты

from time import sleep
from os import system
OUTPUT_IMAGE = [
      [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
      [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
      [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
      [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
      [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
      [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
      [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
      [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
      [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
      [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
      [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
      ]
px = 3
py = 3
def SetImage(x: int, y: int, image: str):
    global OUTPUT_IMAGE      
    x_start = x
    x = x
    y = y
    for word in image:
        if word == "\n":
            x = x_start
            y += 1
        else:
            x += 1
            try:
              OUTPUT_IMAGE[y][x] = word
            except IndexError:
                break

def GetSizeObject(img: str):
    w = 0
    weights = []
    h = [word for word in img if word == "\n"]
    h.append(1)

    for word in img:
        if word == "\n":
            weights.append(w)
            w = 0
        else:
            w += 1
    try:
        return {"w": max(weights), "h":len(h)}
    except ValueError:
        return {"w": 0, "h":0}

player_image = " O\n'|'\n |"
def draw():
      global OUTPUT_IMAGE
      sleep(1)
      system("cls||clear")
      for line_words in OUTPUT_IMAGE:
             for word in line_words:
                 print(word, end="")
             print("\n", end="")
      OUTPUT_IMAGE = [
            [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
            [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
            [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
            [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
            [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
            [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
            [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
            [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
            [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
            [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
            [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
            ]
while True:
    SetImage(x=px,y=py,image=player_image)
    print(GetSizeObject(img=player_image))
    draw()

Логика на словах

Логика в коде

def IsClash(x: int, y: int, h: int, w: int,x2: int, y2: int, h2: int, w2: int):
    if (y >= y2 - h2 + h and y - h <= y2 + h2 - h) or (y2 >= y - h + h2 and y2 - h2 <= y + h - h2):
        if (x >= x2 - w2 + w and x - w <= x2 + w2 - w) or (x2 >= x - w + w2 and x2 - w2 <= x + w - w2):
            return True

    return False

Код соприкосновения

from time import sleep
from os import system
OUTPUT_IMAGE = [
      [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
      [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
      [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
      [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
      [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
      [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
      [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
      [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
      [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
      [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
      [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
      ]

def SetImage(x: int, y: int, image: str):
    global OUTPUT_IMAGE      
    x_start = x
    x = x
    y = y
    for word in image:
        if word == "\n":
            x = x_start
            y += 1
        else:
            x += 1
            try:
              OUTPUT_IMAGE[y][x] = word
            except IndexError:
                break

def GetSizeObject(img: str):
    w = 0
    weights = []
    h = [word for word in img if word == "\n"]
    h.append(1)

    for word in img:
        if word == "\n":
            weights.append(w)
            w = 0
        else:
            w += 1
    try:
        return {"w": max(weights), "h":len(h)}
    except ValueError:
        return {"w": 0, "h":0}

def IsClash(x: int, y: int, h: int, w: int,x2: int, y2: int, h2: int, w2: int):
    if (y >= y2 - h2 + h and y - h <= y2 + h2 - h) or (y2 >= y - h + h2 and y2 - h2 <= y + h - h2):
        if (x >= x2 - w2 + w and x - w <= x2 + w2 - w) or (x2 >= x - w + w2 and x2 - w2 <= x + w - w2):
            return True

    return False

player_image = " O\n'|'\n |"
cube_image = "____\n|  |\n----"
cx = 5#
cy = 4  #Меняйте эти координаты для того чтобы менять позиции игрока и куба
px = 10  #
py = 3#
def draw():
      global OUTPUT_IMAGE
      sleep(1)
      system("cls||clear")
      for line_words in OUTPUT_IMAGE:
             for word in line_words:
                 print(word, end="")
             print("\n", end="")
      OUTPUT_IMAGE = [
            [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
            [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
            [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
            [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
            [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
            [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
            [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
            [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
            [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
            [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
            [".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".", ".",],
            ]
while True:
    SetImage(x=px,y=py,image=player_image)
    SetImage(x=cx,y=cy,image=cube_image)
    print("is clash: ",IsClash(
      x=px,
      x2=cx,
      y=py,
      y2=cy,
      h=GetSizeObject(img=player_image)["h"],
      h2=GetSizeObject(img=cube_image)["h"],
      w=GetSizeObject(img=player_image)["w"],
      w2=GetSizeObject(img=cube_image)["w"],
      ))
    draw()

create_object()

def CreateObject(self,x: int, y: int, img: str, name: str = None, up: bool = False, rigid: bool = False, data: dict = {}):
    size_object = self.GetSizeObject(img=img)
    self.OBJECTS.append(
        {"name": name,
         "x": x,
         "y": y,
         "up": up,
         "rigid": rigid,
         "h":size_object["h"],
         "w":size_object["w"],
         "id":uuid4().hex,
         "data":data,
         "img": img}
    )

CheckKeysObjects()

def CheckKeysObjects(self):
    #делаю все переменные в False, чтоб сбросить прошлые результаты
    self.WALK_LEFT_PLAYER = False
    self.WALK_RIGHT_PLAYER = False
    self.WALK_UP_PLAYER = False
    self.WALK_DOWN_PLAYER = False
    #а тут уже проверяю нажатия
    if keyboard.is_pressed("a"):
        self.WALK_LEFT_PLAYER = True
    elif keyboard.is_pressed("d"):
        self.WALK_RIGHT_PLAYER = True
    if keyboard.is_pressed("w"):
        self.WALK_UP_PLAYER = True
    elif keyboard.is_pressed("s"):
        self.WALK_DOWN_PLAYER = True

Получившийся код движения

def CheckAll(self):
    self.CheckKeysObjects()  # check moves
    up_of_payer_objects = []
    for object_now in range(len(self.OBJECTS)):
        self.PLAYER["img"] = self.PLAYER["image_normal"]
        if self.WALK_LEFT_PLAYER:
            self.OBJECTS[object_now]["x"] += 1

        elif self.WALK_RIGHT_PLAYER:
            self.OBJECTS[object_now]["x"] -= 1


        if self.WALK_UP_PLAYER:

            self.OBJECTS[object_now]["y"] += 1
        elif self.WALK_DOWN_PLAYER:

            self.OBJECTS[object_now]["y"] -= 1

Eat()

def Eat(self):
    while True:
        sleep(4)
        if len([i for i in self.OBJECTS if i["name"] == "meat"]) < 10:
            self.SpawnEat()
        sleep(1)
        self.MinimizeHungry()

Start()

def Start(self):
    while True:  
        self.CheckAll()
        self.DrawAll()
        sleep(0.01)

run()

def run(self):
    proc1 = threading.Thread(target=self.Start)
    proc1.start()
    proc2 = threading.Thread(target=self.Eat)
    proc2.start()

Вот так это в коде

for object_now in range(len(self.OBJECTS)):
    ....
    if self.OBJECTS[object_now]["name"] == "meat":
        items_objects.append(object_now)
        is_clash = self.IsClash(
            x=self.OBJECTS[object_now]["x"],
            y=self.OBJECTS[object_now]["y"],
            h=self.OBJECTS[object_now]["h"],
            w=self.OBJECTS[object_now]["w"],
            x2=self.PLAYER["x"],
            y2=self.PLAYER["y"],
            h2=self.PLAYER["h"],
            w2=self.PLAYER["w"],
        )

        if is_clash:
            if self.PRESS_E:
                try:
                    self.PLAYER["hungry"] += self.HUNGRUY_ADD
                    del self.OBJECTS[object_now]
                    break

                except IndexError:
                    pass

self.DestroyItem()

def DestroyItem(self,index_item: str):
    item = self.PLAYER["inventory"][index_item]
    self.PLAYER["inventory"][index_item] = self.PLAYER["default_inventory_item"](index_item)
    self.PLAYER["inventory_must_update"] = True
    return item

self.CheckKeysObjects()

def CheckKeysObjects(self):
    self.WALK_LEFT_PLAYER = False
    self.WALK_RIGHT_PLAYER = False
    self.WALK_UP_PLAYER = False
    self.WALK_DOWN_PLAYER = False
    if key("a"):
        self.WALK_LEFT_PLAYER = True
    elif key("d"):
        self.WALK_RIGHT_PLAYER = True
    if key("w"):
        self.WALK_UP_PLAYER = True
    elif key("s"):
        self.WALK_DOWN_PLAYER = True
    if key("f"):
        self.KEY_F = True
    else:
        self.KEY_F= False
    if key("e"):
        self.UseEat()

self.UseEat()

def UseEat(self):
    for inventory_item in range(len(self.PLAYER["inventory"])):
        if self.PLAYER["inventory"][str(inventory_item)]["name"] == "meat":
            if self.PLAYER["hungry"] + self.ADD_HUNGRY_COUNT < 100.0:
                self.PLAYER["hungry"] += self.ADD_HUNGRY_COUNT
                self.DestroyItem(index_item=str(inventory_item))

self.Quititem()

def QuitItem(self):
    for inventory_item in range(len(self.PLAYER["inventory"])):
        if self.PLAYER["inventory"][str(inventory_item)]["status"] != "space":
            self.CreateObject(
                img=self.PLAYER["inventory"][str(inventory_item)]["img"],
                x=self.PLAYER["x"],
                y=self.PLAYER["y"],
                name=self.PLAYER["inventory"][str(inventory_item)]["name"],
                data=self.PLAYER["inventory"][str(inventory_item)]["data"],
            )
            self.DestroyItem(index_item=str(inventory_item))
            break

Загрузить PDF

Загрузить PDF

Из этой статьи вы узнаете, как создать простую текстовую игру в командной строке на компьютере с Windows.

1. 

   1

   Откройте Блокнот. Блокнот — это бесплатный текстовый редактор, включаемый во все версии Windows. Используйте Блокнот для ввода программного кода. Чтобы открыть Блокнот:

   • Откройте меню «Пуск»
     

     .

   • Введите блокнот.
   • Нажмите «Блокнот» в верхней части меню.

2. 

   2

   Введите название игры. Скопируйте следующий текст в Блокнот — вместо [Название] введите название игры, а затем нажмите ↵ Enter:^[1]
   

   @echo off
   title [Название]
   

3. 

   3

   Определитесь с цветом текста и фона игры. Чтобы указать цвет, нужно ввести код в формате «0A», где «0» — это цвет фона, а «A» — это цвет текста. Коды распространенных цветов:^[2]
   

   • Цвет текста — используйте буквы A, B, C, D, E или F для обозначения светло-зеленого, светло-синего, светло-красного, светло-фиолетового, светло-желтого или белого цвета, соответственно.
   • Цвет фона — используйте цифры 0, 1, 2, 3, 4, 5, 6, 7, 8 или 9 для обозначения черного, синего, зеленого, морской волны, красного, фиолетового, желтого, белого, серого или голубого цвета, соответственно.
   • Например, чтобы создать белый текст на черном фоне, введите код «0F».

4. 

   4

   Задайте цвета игры. Скопируйте следующий текст в Блокнот — вместо «0A» введите нужную комбинацию цветов фона и текста, а затем нажмите ↵ Enter:

   @echo off
   title Онлайн-игра
   color 0A
   if "%1" neq "" ( goto %1)
   

5. 

   5

   Создайте игровое меню. Оно отобразится после запуска игры. Скопируйте следующий текст в Блокнот, а затем нажмите ↵ Enter:

   :Menu
   cls
   echo 1. Пуск
   echo 2. Благодарность
   echo 3. Выход
   set /p answer=Нажмите на клавишу с соответствующей цифрой, а затем нажмите Enter : 
   if %answer%==1 goto Start_1
   if %answer%==2 goto Credits
   if %answer%==3 goto Exit
   

6. 

   6

   Задайте опцию «Выход». Так игроки смогут выйти из командной строки. Скопируйте следующий текст в Блокнот, а затем нажмите ↵ Enter:

   :Exit
   cls
   echo Спасибо за игру!
   pause
   exit /b
   

7. 

   7

   Задайте опцию «Благодарность». Скопируйте следующий текст в Блокнот (вместо [Название] введите название игры), а затем нажмите ↵ Enter:

   :Credits
   cls
   echo Благодарность
   echo.
   echo Спасибо за то, что играли в [Название]!
   pause
   goto Menu
   

8. 

   8

   Задайте опцию «Пуск». Она позволит игрокам начать новую игру:

   :Start_1
   cls
   echo О нет! Вы окружены врагами.
   echo Их пятеро, и все они вооружены.
   echo Если вы сразитесь с ними, у вас есть шансы на победу.
   set /p answer=Сразиться или убежать?
   if %answer%==сразиться goto Fight_1
   if %answer%==убежать goto Run_1
   pause
   

9. 

   9

   Введите код действия. Введете следующий код, чтобы задать действие игры:

   :Run_1
   cls
   echo Вы выжили, чтобы сразиться в другой раз.
   pause
   goto Start_1
   :Fight_1
   echo Приготовьтесь к схватке.
   echo Враги внезапно атаковали вас.
   set /p answer= Нажмите 1, а затем нажмите Enter.
   if %answer%==1 goto Fight_1_Loop
   :Fight_1_Loop
   set /a num=%random%
   if %num% gtr 4 goto Fight_1_Loop
   if %num% lss 1 goto Fight_1_Loop
   if %num%==1 goto Lose_Fight_1
   if %num%==2 goto Win_Fight_1
   if %num%==3 goto Win_Fight_1
   if %num%==4 goto Win_Fight_1
   :Lose_Fight_1
   cls
   echo Вы проиграли. Сыграть еще раз?
   pause
   goto Menu
   :Win_Fight_1
   cls
   echo Вы победили!
   set /p answer=Хотите сохранить игру? [д/н]
   if %answer%=='д' goto 'Save'
   if %answer%=='н' goto 'Start_2'
   :Save
   goto Start_2
   

10. 

    10

    Откройте меню Файл. Оно находится в верхнем левом углу Блокнота.

11. 

    11

    Нажмите Сохранить как. Эта опция находится в меню «Файл». Откроется окно «Сохранить как».

12. 

    12

    Введите имя файла, а затем введите расширение «.bat». В текстовом поле «Имя файла» в нижней части окна введите любое имя файла, а затем введите расширение .bat, чтобы игра сохранилась в виде пакетного файла.

    • Например, чтобы назвать игру «Dungeon Crawl», введите Dungeon Crawl.bat.

13. 

    13

    Измените формат файла. Откройте меню «Тип файла» в нижней части окна, а затем выберите в нем «Все файлы».

14. 

    14

    Сохраните игру на рабочем столе. Для этого нажмите «Рабочий стол» на левой панели. Возможно, сначала вам придется прокрутить панель вверх или вниз, чтобы найти папку «Рабочий стол».

15. 

    15

    Нажмите Сохранить. Это кнопка в правом нижнем углу окна. Игра будет сохранена как BAT-файл.

16. 

    16

    Запустите игру. Дважды щелкните по BAT-файлу, чтобы открыть игру в командной строке, а затем следуйте инструкциям на экране.

    • Например, нажмите «1», чтобы начать игру.

17. 

    17

    Измените программный код игры. Теперь, когда вы написали основной код, в него можно внести изменения, например, добавить параметры и многое другое.

    • Чтобы отредактировать программный код игры, щелкните правой кнопкой мыши по BAT-файлу, а затем в меню выберите «Изменить». Внесите изменения и нажмите Ctrl+S, чтобы сохранить их.
    • Обязательно просмотрите код, чтобы выяснить, за что отвечает каждая его строка.

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Code: Select all

:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
:: SNAKE.BAT - A pure native Windows batch implementation of the classic game
:: ------------------------------------------------------------------------------
:: Written by Dave Benham with some debugging help and technique pointers from
:: DosTips users - See http://www.dostips.com/forum/viewtopic.php?f=3&t=4741
::
:: The game should work on any Windows machine from XP onward using only batch
:: and native external commands. However, the default configuration will most
:: likely have some screen flicker due to the CLS command issued upon every 
:: screen refresh. There are two ways to eliminate screen flicker:
::
:: 1 - "Pure batch" via VT100 escape sequences:
:: You can eliminate flicker by enabling the VT100 mode within the game's
:: Graphic options menu. However, this mode requires a console that supports
:: VT100 escape sequences. This comes standard with Windows 10 (and beyond).
:: The Windows 10 console must be configured properly for this to work - the
:: "Legacy Console" option must be OFF. Prior to Windows 10, there was no
:: standard Windows console that supported VT100 escape sequences, though you
:: may find a utility that provides that support.
::
:: 2 - CursorPos.exe cheat from Aacini:
:: You can eliminate screen flicker on any Windows version by placing Aacini's
:: CursorPos.exe in the same folder that contains SNAKE.BAT. This method of
:: eliminating flicker is "cheating" in that it is not pure native batch since
:: it relies on a 3rd party tool. A script to create CursorPos.exe is available
:: at http://goo.gl/hr6Kkn.
::
:: Note that user preferences and high scores are stored in %USERPROFILE%\Snake
:: User saved games have an implicit .snake.txt "extension", and are saved and
:: loaded from the current directory.
::
:: Version History
::
:: 4.1  2018-09-08
::   - Fixed bug in Playfield too large error handling that aborted but hung.
::
:: 4.0  2017-04-10
::   - New Field size options, ranging from tiny to large. Original = Medium.
::   - Reconfigured menu
::   - Added support for VT100 mode to eliminate screen flicker by using
::     with "pure" batch VT100 escape sequences.
::
:: 3.8  2015-02-16
::   - Improve performance of Replay abort
::   - Eliminate flicker at game start when using CursorPos.exe
::   - Use symbols (variables) for lock, key and cmd streams.
::
:: 3.7  2014-08-03
::   - Reduced screen flicker when playing without CursorPos.exe by building
::     entire screen in one variable before CLS and ECHOing the screen.
::
:: 3.6  2014-04-09
::   - Pause after displaying CursorPos.exe message at end if game was launced
::     via double click or START menu.
::
:: 3.5  2014-02-03
::   - Made growth rate user configurable. High scores are now stored for each
::     growth rate played.
::   - Added optional support for Aacini's CursorPos.exe to eliminate screen
::     flicker.
::   - Redesigned storage of configuration options within saved games to make
::     it easier to extend in the future. Existing saved games are automatically
::     converted to the new format.
::   - Simplified replay abort mechanics.
::
:: 3.4  2013-12-26
::   - Added ability to abort a game replay.
::
:: 3.3  2013-12-24
::   - Added Pause functionality.
::
:: 3.2  2013-12-08
::   - Fixed a replay bug. Note that attempting to delete a non-existent file
::     does not raise an error!
::   - Added ability to save a previous game or a High score game to a user
::     named file in the current directory.
::   - Added ability to load and replay a user saved game from the current
::     directory.
::
:: 3.1  2013-12-08
::   - Fixed a bug with the game logs. Must include key mappings in log.
::     High scores from version 3.0 should be deleted from %USERPROFILE%\Snake.
::
:: 3.0  2013-12-07
::   - Made control keys user configurable, including option for 2 key
::     (left/right) or 4 key (left/right/up/down) input.
::   - Made graphics user configurable.
::   - Added ability to display replay of previous game.
::   - Added High Score list, with ability to display replay of High Score games.
::
:: 2.3  2013-12-01
::   - Added elapsed game time to the display.
::
:: 2.2  2013-08-06
::   - Improved comments / internal documentation
::   - A few inconsequential code changes
::
:: 2.1  2013-07-20
::   - Reworked interprocess communication. No more hanging games (I hope).
::   - Fixed parameterization of movement key definition.
::   - Temp file location now controlled by TEMP (or TMP) environment variable.
::   - Implemented a game session lock into temp file names so multiple game
::     instances can share the same TEMP folder without interference.
::
:: 2.0  2013-07-17
::   - First attempt at using XCOPY instead of CHOICE. Game now runs as
::     pure native batch on all Windows versions from XP onward.
::
:: 1.0  2013-07-13  to  1.x
::   - Game required CHOICE command, so did not work on XP without download of
::     a non-standard exe or com file.
::
:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::

@echo off
if "%~1" == "startGame" goto :game
if "%~1" == "startController" goto :controller


::---------------------------------------------------------------------
:: setup some global variables used by both the game and the controller

setlocal disableDelayedExpansion
set "toggleVT100="
:getSession
if defined temp (set "tempFileBase=%temp%\") else if defined tmp set "tempFileBase=%tmp%\"
set "tempFileBase=%tempFileBase%Snake%time::=_%"
set "keyFile=%tempFileBase%_key.txt"
set "cmdFile=%tempFileBase%_cmd.txt"
set "gameLock=%tempFileBase%_gameLock.txt"
set "gameLog=%tempFileBase%_gameLog.txt"
set "signal=%tempFileBase%_signal.txt"
set "saveLoc=%userprofile%\Snake"
set "userPref=%saveLoc%\SnakeUserPref.txt"
set "hiFile=%saveLoc%\Snake!size!!growth!Hi"
set "keyStream=9"
set "cmdStream=8"
set "lockStream=7"


::------------------------------------------
:: Lock this game session and launch.
:: Loop back and try a new session if failure.
:: Cleanup and exit when finished

call :launch %lockStream%>"%gameLock%" || goto :getSession
del "%tempFileBase%*"
exit /b


::------------------------------------------
:launch the game and the controller

call :fixLogs
:relaunch
copy nul "%keyFile%" >nul
copy nul "%cmdFile%" >nul
start "" /b cmd /c ^""%~f0" startController %keyStream%^>^>"%keyFile%" %cmdStream%^<"%cmdFile%" 2^>nul ^>nul^"
cmd /c ^""%~f0" startGame %keyStream%^<"%keyFile%" %cmdStream%^>^>"%cmdFile%" ^<nul^"
echo(


::--------------------------------------------------------------
:: Upon exit, wait for the controller to close before returning

:close
2>nul (>>"%keyFile%" call )||goto :close
if "%=exitcode%" equ "00000002" (
  set "toggleVT100=1"
  goto :relaunch
) else if "%=exitcode%" equ "00000001" (
  echo Game play can be improved by installing
  echo Aacini's CursorPos.exe, available at
  echo http://goo.gl/hr6Kkn
  echo(
  echo Alternatively, if your console supports
  echo VT100 escape sequences, then you can
  echo enable VT100 mode within the SNAKE.BAT
  echo Graphic options menu.
  echo(
  echo %cmdcmdline%|find /i "%~f0">nul&&pause
)
exit /b 0


::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
:game
title %~nx0
cls

::---------------------------------------
:: Default playfield size
:: max playing field: (width-2)*(height-2) <= 1365

set "size=Medium"
set "dispWidth=40"   max=99
set "dispHeight=25"  max=99
set "defaultSize=%size%"
set /a "defaultWidth=dispWidth, defaultHeight=dispHeight"

::----------------------------
:: Other default values

set "moveKeys=4"

set "up=W"
set "down=S"
set "left=A"
set "right=D"
set "pause=P"

set "space= "
set "bound=#"
set "food=+"
set "head=@"
set "body=O"
set "death=X"

set "vt0=OFF"
set "vt1=ON"
set "vt=0"

set "growth=1"

::--- sendCmd macro ---
:: sendCmd  command
:::  sends a command to the controller
set "sendCmd=>&%cmdStream% echo"

::---------------------------
:: Load user preferences
if exist "%userPref%" for /f "usebackq delims=" %%V in ("%userPref%") do set "%%V"
call :resize

::---------------------------
:: Variable constants

set "configOptions=diffCode difficulty growth moveKeys up down left right size dispWidth dispHeight"

for %%S in (
 "T Tiny   15 10"
 "S Small  25 15"
 "M Medium 40 25"
 "L Large  47 32"
 "W Wide   82 19"
 "N Narrow 20 40"
) do for /f "tokens=1-4" %%A in (%%S) do (
  set "size%%A=%%B"
  set /a "width%%A=%%C, height%%A=%%D"
)

set "spinner1=-"
set "spinner2=\"
set "spinner3=|"
set "spinner4=/"
set "spinner= spinner1 spinner2 spinner3 spinner4 "

set "delay1=20"
set "delay2=15"
set "delay3=10"
set "delay4=7"
set "delay5=5"
set "delay6=3"

set "desc1=Sluggard"
set "desc2=Crawl"
set "desc3=Slow"
set "desc4=Normal"
set "desc5=Fast"
set "desc6=Insane"

set "spinnerDelay=3"

:: define LF as a Line Feed (newline) character
set ^"LF=^

^" Above empty line is required - do not remove

:: define CR as a Carriage Return character
for /f %%A in ('copy /Z "%~dpf0" nul') do set "CR=%%A"

:: define BS as a BackSpace character
for /f %%A in ('"prompt $H&for %%B in (1) do rem"') do set "BS=%%A"

set "upper=A B C D E F G H I J K L M N O P Q R S T U V W X Y Z"
set "invalid=*~="

::---------------------------
:: define macros

if %vt% equ 1 (
  for /f "delims=" %%E in (
    'forfiles /p "%~dp0." /m "%~nx0" /c "cmd /c echo(0x1B"'
  ) do (
    cls
    <nul set /p "=%%E7"
    set "cls=<nul set /p "=%%E8""
    set "ClearLine=<nul set /p "=%%E[K""
    set "ClearPrev=echo(&echo(%%E[F%%E[K"
    set "Up4=echo(%%E[F%%E[F%%E[F%%E[F%%E[F"
    set "ShowCursor=<nul set /p "=%%E[?25h""
    set "HideCursor=<nul set /p "=%%E[?25l""
    set "exitCode=0"
  )
) else if exist "%~dp0CursorPos.exe" (
  set "cls=CursorPos 0 0"
  set "ClearLine=echo(                                   &CursorPos 0 -1"
  set "ClearPrev=CursorPos 0 -0&echo(                                   "
  set "Up4=CursorPos 0 -4"
  set "ShowCursor="
  set "HideCursor="
  set "exitCode=0"
) else (
  set "cls=cls"
  set "ClearLine="
  set "ClearPrev="
  set "Up4="
  set "ShowCursor="
  set "HideCursor="
  set "exitCode=1"
)

:: define a newline with line continuation
set ^"\n=^^^%LF%%LF%^%LF%%LF%^^"

:: setErr
:::  Sets the ERRORLEVEL to 1
set "setErr=(call)"

:: clrErr
:::  Sets the ERRORLEVEL to 0
set "clrErr=(call )"

:: getKey  [ValidKey]  [ValidKey...]
::: Check for keypress from the controller. Only accept a ValidKey.
::: Token delimiters and poison characters must be quoted.
::: Accept any key if no ValidKey specified.
::: Return result in Key variable. Key is undefined if no valid keypress.
set getKey=%\n%
for %%# in (1 2) do if %%#==2 (%\n%
  set key=%\n%
  set inKey=%\n%
  set keyTest=%\n%
  ^<^&%keyStream% set /p "inKey="%\n%
  if defined inKey (%\n%
    set inKey=!inKey:~0,-1!%\n%
    for %%C in (!args!) do set /a keyTest=1^&if /i !inKey! equ %%~C set key=!inKey!%\n%
  )%\n%
  if not defined keyTest set key=!inKey!%\n%
) else set args=


:: draw
:::  draws the board
set draw=%\n%
set screen=%\n%
for /l %%Y in (0,1,!height!) do set screen=!screen!!line%%Y!!LF!%\n%
set screen=!screen!Speed = !Difficulty! !replay!!LF!Growth Rate = !growth!   HighScore = !hi!!LF!Score = !score!   Time = !m!:!s!%\n%
if defined replay if not defined replayFinished (%\n%
  set screen=!screen!!LF!!LF!Press a key to abort the replay%\n%
)%\n%
%cls%^&echo(!screen!

:: test  X  Y  ValueListVar
:::  tests if value at coordinates X,Y is within contents of ValueListVar
set test=%\n%
for %%# in (1 2) do if %%#==2 (for /f "tokens=1-3" %%1 in ("!args!") do (%\n%
  for %%A in ("!line%%2:~%%1,1!") do if "!%%3:%%~A=!" neq "!%%3!" %clrErr% else %setErr%%\n%
)) else set args=


:: plot  X  Y  ValueVar
:::  places contents of ValueVar at coordinates X,Y
set plot=%\n%
for %%# in (1 2) do if %%#==2 (for /f "tokens=1-3" %%1 in ("!args!") do (%\n%
  set "part2=!line%%2:~%%1!"%\n%
  set "line%%2=!line%%2:~0,%%1!!%%3!!part2:~1!"%\n%
)) else set args=


::--------------------------------------
:: start the game
setlocal enableDelayedExpansion
if not exist "%saveLoc%\" md "%saveLoc%"
set "replay= Aborting... "
set "replayAvailable="
if exist "!gameLog!" set "replayAvailable=R"
call :loadHighScores
call :mainMenu


::--------------------------------------
:: main loop (infinite loop)
for /l %%. in () do (

  %=== check for and process abort signal if in replay mode ===%
  if defined replay if exist "%signal%" (
    del "%signal%"
    set "replayFinished=1"
    %draw%
    echo(
    %ClearLine%
    <nul set /p "=Aborting... "
    findstr "^" >nul <&%keyStream%
    for %%A in (!configOptions!) do set "%%A=!%%ASave!"
    %ShowCursor%
    call :mainMenu
  )

  %=== compute time since last move ===%
  for /f "tokens=1-4 delims=:.," %%a in ("!time: =0!") do set /a "t2=(((1%%a*60)+1%%b)*60+1%%c)*100+1%%d-36610100, tDiff=t2-t1"
  if !tDiff! lss 0 set /a tDiff+=24*60*60*100

  if !tDiff! geq !delay! (
    %=== delay has expired, so time for movement ===%
    set /a t1=t2

    %=== compute game time ===%
    if not defined gameStart set "gameStart=!t2!"
    set /a "gameTime=(t2-gameStart)"
    if !gameTime! lss 0 set /a "gameTime+=24*60*60*100"
    set /a "gameTime=(gameTime-pauseTime)/100, m=gameTime/60, s=gameTime%%60"
    if !m! lss 10 set "m=0!m!"
    if !s! lss 10 set "s=0!s!"

    %=== get keypress ===%
    %getKey% !keys!
    if /i !key! equ !pause! (

      %=== pause game ===%
      echo(
      %ShowCursor%
      call :ask "PAUSED - Press a key to continue..."
      %HideCursor%
      %ClearPrev%
      %sendCmd% go
      for /f "tokens=1-4 delims=:.," %%a in ("!time: =0!") do set /a "t2=(((1%%a*60)+1%%b)*60+1%%c)*100+1%%d-36610100, tDiff=t2-t1"
      if !tDiff! lss 0 set /a tDiff+=24*60*60*100
      set /a pauseTime+=tDiff

    ) else (

      %=== establish direction ===%
      if not defined replay (echo(!key!.) >>"!gameLog!"
      for %%K in (!key!) do if !moveKeys! equ 2 (
        set /a "xDiff=xTurn%%K*!yDiff!, yDiff=yTurn%%K*!xDiff!"
      ) else if "!%%KAxis!" neq "!axis!" (
        set /a "xDiff=xDiff%%K, yDiff=yDiff%%K"
        set "axis=!%%KAxis!"
      )

      %=== erase the tail ===%
      set "TX=!snakeX:~-2!"
      set "TY=!snakeY:~-2!"
      set "snakeX=!snakeX:~0,-2!"
      set "snakeY=!snakeY:~0,-2!"
      %plot% !TX! !TY! space

      %=== compute new head location and attempt to move ===%
      set /a "X=PX+xDiff, Y=PY+yDiff"
      set "X= !X!"
      set "Y= !Y!"
      set "X=!X:~-2!"
      set "Y=!Y:~-2!"
      (%test% !X! !Y! playerSpace) && (

        %=== move successful ===%

        %=== remove the new head location from the empty list ===%
        for %%X in ("!X!") do for %%Y in ("!Y!") do set "empty=!empty:#%%~X %%~Y=!"

        %=== eat any food that may be present ===%
        (%test% !X! !Y! food) && (
          %=== initiate growth ===%
          set /a grow+=growth

          %=== locate and draw new food ===%
          if defined replay (
            <&%keyStream% set /p "F="
          ) else (
            set /a "F=(!random!%%(emptyCnt-1))*6+1"
            (echo !F!) >>"!gameLog!"
          )
          for %%F in (!F!) do (%plot% !empty:~%%F,5! food)
        )

        if !grow! gtr 0 (
          %=== restore the tail ===%
          %plot% !TX! !TY! body
          set "snakeX=!snakeX!!TX!"
          set "snakeY=!snakeY!!TY!"
          set /a emptyCnt-=1

          %=== manage score ===%
          set /a "score+=1, grow-=1"
          if not defined replay if !score! gtr !hi! set /a "hi+=1, newHi=1"

        ) else (
          %=== add the former tail position to the empty list ===%
          set "empty=!empty!#!TX! !TY!"
        )

        %=== draw the new head ===%
        if defined snakeX (%plot% !PX! !PY! body)
        %plot% !X! !Y! head

        %=== Add the new head position to the snake strings ===%
        set "snakeX=!X!!snakeX!"
        set "snakeY=!Y!!snakeY!"
        set "PX=!X!"
        set "PY=!Y!"

        %draw%

      ) || (

        %=== failed move - game over ===%
        set "replayFinished=1"
        %plot% !TX! !TY! body
        call :spinner !PX! !PY! death
        %draw%
        if defined newHi (
          echo(
          echo New High Score - Congratulations^^!
          set "hi!diffCode!=!score!"
          copy "!gameLog!" "%hiFile%!diffCode!.txt" >nul
          >>"%hiFile%!diffCode!.txt" echo ::!score!
        )
        echo(
        %ClearLine%
        %ShowCursor%
        call :ask "Press a key to continue..."
        for %%A in (!configOptions!) do set "%%A=!%%ASave!"
        call :mainMenu
      )
    )
  )
)


::-------------------------------------
:getString  Prompt  Var  MaxLen
:: Prompt for a string with max lengh of MaxLen.
:: Valid keys are alpha-numeric, space, underscore, and dash
:: String is terminated by Enter
:: Backspace works to delete previous character
:: Result is returned in Var
set /a "maxLen=%3"
set "%2="
%sendCmd% prompt
<nul set /p "=%~1 "
call :purge
:getStringLoop
(%getKey% !upper! 0 1 2 3 4 5 6 7 8 9 " " _ - {Enter} !BS!)
if defined key (
  if !key! equ {Enter} (
    echo(
    exit /b
  )
  if !key! neq !BS! if !maxLen! gtr 0 (
    set /a maxLen-=1
    <nul set /p "=.!BS!!key!"
    set "%2=!%2!!key!
  )
  if !key! equ !BS! if defined %2 (
    set /a maxLen+=1
    <nul set /p "=!BS! !BS!"
    set "%2=!%2:~0,-1!"
  )
)
if defined inKey %sendCmd% one
goto :getStringLoop


::-------------------------------------
:ask  Prompt  ValidKey [Validkey]...
:: Prompt for a keypress.
:: Wait until a ValidKey is pressed and return result in Key variable.
:: Token delimiters, ), and poison characters must be quoted.
%sendCmd% prompt
<nul set /p "=%~1 "
(set validKeys=%*)
(set validKeys=!validKeys:%1=!)
call :purge
:getResponse
(%getKey% !validKeys!)
if not defined key (
  if defined inKey %sendCmd% one
  goto :getResponse
)
exit /b


:purge
set "inKey="
for /l %%N in (1 1 1000) do (
  set /p "inKey="
  if "!inKey!" equ "{purged}." exit /b
)<&%keyStream%
goto :purge


::-------------------------------------
:spinner  X  Y  ValueVar
set /a d1=-1000000
for /l %%N in (1 1 5) do for %%C in (%spinner%) do (
  call :spinnerDelay
  %plot% %1 %2 %%C
  %draw%
)
call :spinnerDelay
(%plot% %1 %2 %3)
exit /b


::-------------------------------------
:delay  centiSeconds
setlocal
for /f "tokens=1-4 delims=:.," %%a in ("!time: =0!") do set /a "spinnerDelay=%1, d1=(((1%%a*60)+1%%b)*60+1%%c)*100+1%%d-36610100"
:: fall through to :spinnerDelay

::-------------------------------------
:spinnerDelay
for /f "tokens=1-4 delims=:.," %%a in ("!time: =0!") do set /a "d2=(((1%%a*60)+1%%b)*60+1%%c)*100+1%%d-36610100, dDiff=d2-d1"
if %dDiff% lss 0 set /a dDiff+=24*60*60*100
if %dDiff% lss %spinnerDelay% goto :spinnerDelay
set /a d1=d2
exit /b


::-------------------------------------
:mainMenu
if defined toggleVT100 call :graphicOptions
cls
call :resize
set "loadAvailable="
echo SNAKE.BAT v4.0 by Dave Benham
echo(
echo Main Menu:
echo(
echo   N - New game
echo   F - Field size..... !size!
echo   W - groWth rate.... !growth!
echo   C - Control options
echo   G - Graphic options

if defined replayAvailable echo   R - Replay previous game
if defined saveAvailable   echo   S - Save a game
if exist *.snake.txt       echo   L - Load and watch a saved game&set "loadAvailable=L"

echo   Q - Quit
echo(
set "hiAvailable="
for /l %%N in (1 1 6) do if defined hi%%N (
  if not defined hiAvailable (
    echo Replay High Score:
    echo(
  )
  set "desc=!desc%%N!........"
  set "hiAvailable=!hiAvailable! %%N"
  echo   %%N - !desc:~0,8! !hi%%N!
)
if defined hiAvailable echo(
set "keys=N F W C G Q !hiAvailable! !replayAvailable! !saveAvailable! !loadAvailable!"
call :ask ">" !keys!
if /i !key! equ Q (
  %sendCmd% quit
  cls
  exit %exitCode%
) else if /i !key! equ N (
  set "replay="
  set "replayAvailable=R"
  set "saveAvailable=S"
  goto :initialize
) else if /i !key! equ S (
  if defined replayAvailable (
    call :ask "HighScore # or P for Previous:" !hiAvailable! P
  ) else (
    call :ask "HighScore #:" !hiAvailable!
  )
  echo !key!
  if /i !key! equ P (set "src=!gameLog!") else set "src=%hiFile%!key!.txt"
  call :getString "Save file name:" file 20
  copy "!src!" "!file!.snake.txt"
  call :ask "Press a key to continue..."
) else if /i !key! equ L (
  call :getString "Load file name:" file 20
  if exist "!file!.snake.txt" (
    set "replay=!file!.snake.txt"
    goto :initialize
  )
  echo Error: File "!file!.snake.txt" not found
  call :ask "Press a key to continue..."
) else if /i !key! equ R (
  set "replay=!gameLog!"
  goto :initialize
) else if /i !key! equ C (
  call :controlOptions
) else if /i !key! equ G (
  call :graphicOptions
) else if /i !key! equ F (
  call :sizeOptions
) else if /i !key! equ W (
  call :ask "Press a digit for growth rate (0 = 10)" 0 1 2 3 4 5 6 7 8 9
  if !key! equ 0 set "key=10"
  set "growth=!key!"
  call :loadHighScores
) else if !key! geq 1 if !key! leq 6 (
  set "replay=%hiFile%!key!.txt"
  goto :initialize
)
goto :mainMenu


::-------------------------------------
:sizeOptions
cls
set "keys=T S M L W N"
echo Field Size Options:
echo(
echo   T - Tiny   15 x 10
echo   S - Small  30 x 20
echo   M - Medium 40 x 25
echo   L - Large  47 x 32
echo   W - Wide   82 x 19
echo   N - Narrow 15 x 40
echo(
call :ask ">" !keys!
set "size=!size%key%!"
set /a "dispWidth=!width%key%!, dispHeight=!height%key%!"
call :loadHighScores
goto :saveUserPrefs
exit /b


::-------------------------------------
:controlOptions
cls
set "keys={Enter} T L R P"
if !moveKeys! equ 4 set "keys=!keys! U D"
                    echo Control Options:
                    echo(
                    echo   T - Type... = !moveKeys! keys
                    echo(
                    echo   L - Left... = !left!
                    echo   R - Right.. = !right!
if !moveKeys! equ 4 echo   U - Up..... = !up!
if !moveKeys! equ 4 echo   D - Down... = !down!
                    echo(
                    echo   P - Pause.. = !pause!
                    echo(
                    echo   {Enter} - Return to Main Menu
                    echo(
call :ask ">" !keys!
if !key! equ {Enter} goto :saveUserPrefs
if /i !key! equ T (
  if !moveKeys! equ 2 (set "moveKeys=4") else set "moveKeys=2"
  goto :controlOptions
)
set "option= LLeft RRight UUp DDown PPause"
for /f %%O in ("!option:* %key%=!") do (
  call :ask "Press a key for %%O:"
  for %%K in (0 1 2) do if "!key!" equ "!invalid:~%%K,1!" goto :controlOptions
  for %%C in (!upper!) do set "key=!key:%%C=%%C!"
  set "%%O=!key!"
)
goto :controlOptions


::-------------------------------------
:graphicOptions
set "toggleVT100="
cls
echo Graphic Options:
echo(
echo   B - Border...... = !bound!
echo   E - Empty space. = !space!
echo   H - snake Head.. = !head!
echo   S - Snake body.. = !body!
echo   F - Food........ = !food!
echo   D - Death....... = !death!
echo(
echo   V - VT100 mode.. = !vt%vt%!
echo(
echo   {Enter} - Rturn to Main Menu
echo(
call :ask ">" B E H S F D V {Enter}
if !key! equ {Enter} goto :saveUserPrefs
if /i !key! equ V (
  set /a "vt=^!vt"
  call :saveUserPrefs
  %sendCmd% quit
  exit 2
) else (
  set "option=-BBorder:bound:-EEmpty Space:space:-HSnake Head:head:-SSnake Body:body:-FFood:food:-DDeath:death:"
  for /f "tokens=1,2 delims=:" %%A in ("!option:*-%key%=!") do (
    call :ask "Press a key for %%A"
    for %%K in (0 1 2) do if "!key!" equ "!invalid:~%%K,1!" goto :graphicOptions
    set "%%B=!key!"
  )
)
goto :graphicOptions


::------------------------------------
:saveUserPrefs
(for %%V in (moveKeys up down left right space bound food head body death pause growth vt size dispWidth dispHeight) do echo %%V=!%%V!) >"%userPref%"
exit /b


::-------------------------------------
:initialize
cls
if defined replay (
  echo Replay Speed Options:
) else (
  echo Speed Options:
)
echo                       delay
echo    #   Description  (seconds)
echo   ---  -----------  ---------
for /l %%N in (1 1 6) do (
  set "delay=0!delay%%N!"
  set "desc=!desc%%N!           "
  echo    %%N   !desc:~0,11!    0.!delay:~-2!
)
echo(
call :ask "Pick a speed (1-6):" 1 2 3 4 5 6
set "difficulty=!desc%key%!"
set "delay=!delay%key%!"
set "diffCode=%key%"
echo %key% - %difficulty%
echo(
<nul set /p "=Initializing."
for %%A in (!configOptions!) do set "%%ASave=!%%A!"
if defined replay (
  %sendCmd% replay
  %sendCmd% !replay!
  call :waitForSignal
  set "replay=(REPLAY at !difficulty!)"
  set "size=%defaultSize%"
  set /a "dispWidth=defaultWidth, dispHeight=defaultHeight"
  :loadReplayConfig
  <&%keyStream% set /p "ln="
  if "!ln!" neq "END" set "!ln!" & goto :loadReplayConfig
  call :resize
)
set "axis=X"
set "xDiff=+1"
set "yDiff=+0"
set "empty="
set /a "PX=1, PY=height/2, FX=width/2+1, FY=PY, score=0, emptyCnt=0, t1=-1000000"
set "gameStart="
set "m=00"
set "s=00"
set "snakeX= %PX%"
set "snakeY= %PY%"
set "snakeX=%snakeX:~-2%"
set "snakeY=%snakeY:~-2%"
for /l %%Y in (0 1 %height%) do (
  <nul set /p "=."
  set "line%%Y="
  for /l %%X in (0,1,%width%) do (
    set "cell="
    if %%Y equ 0        set "cell=%bound%"
    if %%Y equ %height% set "cell=%bound%"
    if %%X equ 0        set "cell=%bound%"
    if %%X equ %width%  set "cell=%bound%"
    if %%X equ %PX% if %%Y equ %PY% set "cell=%head%"
    if not defined cell (
      set "cell=%space%"
      set "eX= %%X"
      set "eY= %%Y"
      set "empty=!empty!#!eX:~-2! !eY:~-2!"
      set /a emptyCnt+=1
    )
    if %%X equ %FX% if %%Y equ %FY% set "cell=%food%"
    set "line%%Y=!line%%Y!!cell!"
  )
)
set "replayFinished="
if defined replay (
  set "keys="
  set "hi=0"
  for /f "delims=:" %%A in ('findstr "^::" "%hiFile%!diffCode!.txt" 2^>nul') do set "hi=%%A"
  %HideCursor%
  cls
  (%draw%)
  call :delay 100
) else (
  if defined hi%diffCode% (set "hi=!hi%diffCode%!") else set "hi=0"
  cls
  (%draw%)
  >"!gameLog!" ( 
    for %%A in (!configOptions!) do (echo %%A=!%%A!)
    (echo END)
  )
  echo(
  if !moveKeys! equ 4 (
    echo Controls: !up!=up !down!=down !left!=left !right!=right !pause!=pause
  ) else (
    echo Controls: !left!=left !right!=right !pause!=pause
  )
  echo Avoid running into yourself (!body!!body!!head!^) or wall (!bound!^)
  echo Eat food (!food!^) to grow.
  echo(
  call :ask "Press a key to start..."
  %HideCursor%
  %sendCmd% go
)
set "pauseTime=0"
set "xDiff!up!=+0"
set "xDiff!down!=+0"
set "xDiff!left!=-1"
set "xDiff!right!=+1"
set "yDiff!up!=-1"
set "yDiff!down!=+1"
set "yDiff!left!=+0"
set "yDiff!right!=+0"
set "!up!Axis=Y"
set "!down!Axis=Y"
set "!left!Axis=X"
set "!right!Axis=X"
set "xTurn!left!=1"
set "xTurn!right!=-1"
set "yTurn!left!=-1"
set "yTurn!right!=1"
set "playerSpace=!space!!food!"
set ^"keys="!left!" "!right!" "!pause!"^"
set "newHi="
set "grow=0"
if !moveKeys! equ 4 set ^"keys=!keys! "!up!" "!down!"^"
if defined Up4 if not defined replay (
  %Up4%
  for /l %%N in (1 1 5) do (echo(                                             )
)
exit /b


::-------------------------------------
:waitForSignal
if not exist "%signal%" goto :waitForSignal
del "%signal%"
exit /b


::-------------------------------------
:loadHighScores
set "saveAvailable="
for /l %%N in (1 1 6) do (
  set "hi%%N="
  for /f "delims=:" %%A in ('findstr "^::" "%hiFile%%%N.txt" 2^>nul') do (
    set "hi%%N=%%A"
    set "saveAvailable=S"
  )
)
exit /b


::----------------------------
:resize the console window
set /a cols=dispWidth+1, lines=dispHeight+10, area=(dispWidth-2)*(dispHeight-2)
if %area% gtr 1365 (
  echo ERROR: Playfield area too large
  %sendCmd% quit
  exit
)
if %lines% lss 25 set lines=25
if %cols% lss 46 set cols=46
mode con: cols=%cols% lines=%lines%
set /a "width=dispWidth-1, height=dispHeight-1"
set "resize="
exit /b


::-------------------------------------
:fixLogs
setlocal enableDelayedExpansion
for %%F in (*.snake) do (
  ren "%%F" "%%F.txt"
  call :fixLog "%%F.txt"
)
pushd "%SaveLoc%"
for /f "delims=" %%F in ('dir /b SnakeHi*.txt 2^>nul') do (
  set "file=%%~nF"
  set "file=Snake1Hi!file:~-1!.txt"
  ren "%%F" "!file!"
  call :fixLog "!file!"
)
for /f "tokens=1* delims=eE" %%A in (
  'dir /b Snake*Hi*.txt ^| findstr /i "^Snake[0-9]"'
) do ren "Snake%%B" "SnakeMedium%%B"
popd
exit /b

:fixLog  filePath
>"%~1.new" (
  <"%~1" (
    for %%A in (diffCode difficulty moveKeys up down left right) do (
      set /p "val="
      (echo %%A=!val!)
    )
  )
  (echo growth=1)
  (echo END)
  more +7 "%~1"
)
move /y "%~1.new" "%~1" >nul
exit /b


::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
:controller
:: Detects keypresses and sends the information to the game via a key file.
:: The controller has various modes of input that are activated by commands sent
:: from the game via a cmd file.
::
:: Modes:
::
::   hold   - No input, wait for command
::
::   go     - Continuously get/send key presses
::
::   prompt - Send {purged} marker to allow game to purge input buffer, then
::            get/send a single key press and hold
::
::   one    - Get/send a single key press and hold
::
::   replay - Copy a game log to the key file. The next line in cmd file
::            specifies name of log file to copy. During replay, the controller
::            will send an abort signal to the game if a key is pressed.
::
::   quit   - Immediately exit the controller process
::
:: As written, this routine incorrectly reports ! as ), but that doesn't matter
:: since we don't need that key. Both <CR> and Enter key are reported as {Enter}.
:: An extra character is appended to the output to preserve any control chars
:: when read by SET /P.

setlocal enableDelayedExpansion
for /f %%a in ('copy /Z "%~dpf0" nul') do set "CR=%%a"
set "cmd=hold"
set "inCmd="
set "key="
for /l %%. in () do (
  if "!cmd!" neq "hold" (
    for /f "delims=" %%A in ('xcopy /w "%~f0" "%~f0" 2^>nul') do (
      if not defined key set "key=%%A"
    )
    set "key=!key:~-1!"
    if !key! equ !CR! set "key={Enter}"
  )
  <&%cmdStream% set /p "inCmd="
  if defined inCmd (
    if !inCmd! equ quit exit
    set "cmd=!inCmd!"
    if !inCmd! equ replay (
      <&%cmdStream% set /p "file="
      type "!file!" >&%keyStream%
      copy nul "%signal%"
    )
    set "inCmd="
  )
  if defined key (
    if "!cmd!" equ "prompt" (echo {purged}.)
    if "!cmd!" equ "replay" (
      copy nul "%signal%" >nul
      set "cmd=go"
    ) else (echo(!key!.)
    if "!cmd!" neq "go" set "cmd=hold"
    set "key="
  )>&%keyStream%
)

Code: Select all

:: Disable that awful beep (commands must be run with administrator privilege)
::   current session only:  net stop beep
::   permanently:  sc config beep start= disabled

@echo off
if "%~1" == "startGame" goto :game
if "%~1" == "startController" goto :controller


::------------------------------------------------------------
:: verify existence of CHOICE command
:: set up a macro appropriately depending on available version

set "choice="
2>nul >nul choice /c:yn /t 0 /d y
if errorlevel 1 if not errorlevel 2 set "choice=choice /cs"
if not defined choice (
  2>nul >nul choice /c:yn /t:y,1
  if errorlevel 1 if not errorlevel 2 set "choice=choice /s"
)
if not defined choice (
  echo ERROR: This game requires the CHOICE command, but it is missing.
  echo Game aborted. :(
  echo(
  echo A 16 bit port of CHOICE.EXE from FREEDOS is available at
  echo http://winsupport.org/utilities/freedos-choice.html
  echo(
  echo A 32 bit version from ??? suitable for 64 bit machines is available at
  echo http://hp.vector.co.jp/authors/VA007219/dkclonesup/choice.html
  echo(
  exit /b
)


::---------------------------------------------------------------------
:: setup some global variables used by both the game and the controller

set "keys=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"
set "keyFile=key.txt"
set "cmdFile=cmd.txt"


::------------------------------------------
:: launch the game and the controller

copy nul "%keyFile%" >nul
start "" /b "%~f0" startController 9^>^>%keyFile% 2^>nul ^>nul
cmd /c "%~f0" startGame 9^<%keyFile% ^<nul
echo(

::--------------------------------------------------------------------------------
:: Upon exit, wait for the controller to close before deleting the temp input file

:close
2>nul (>>"%keyFile%" call )||goto :close
del "%keyFile%"
exit /b


::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
:game
setlocal disableDelayedExpansion
title %~nx0
cls

::----------------------------
:: user configurable options

set "up=W"
set "down=S"
set "left=A"
set "right=D"

set "width=40"   max=99
set "height=25"  max=99
:: max playing field: (width-2)*(height-2) <= 1365

::----------------------------
:: resize the console window

set /a cols=width+1, lines=height+10, area=(width-2)*(height-2)
if %area% gtr 1365 (
  echo ERROR: Playfield area too large
  >"%cmdFile%" (echo quit)
  exit
)
if %lines% lss 14 set lines=14
if %cols% lss 46 set cols=46
mode con: cols=%cols% lines=%lines%

::----------------------------
:: define variables

set "spinner1=-"
set "spinner2=\"
set "spinner3=|"
set "spinner4=/"
set "spinner= spinner1 spinner2 spinner3 spinner4 "

set "space= "
set "bound=#"
set "food=+"
set "head=@"
set "body=O"
set "death=X"
set "playerSpace=%space%%food%"

set "xDiff%up%=+0"
set "xDiff%down%=+0"
set "xDiff%left%=-1"
set "xDiff%right%=+1"

set "yDiff%up%=-1"
set "yDiff%down%=+1"
set "yDiff%left%=+0"
set "yDiff%right%=+0"

set "%up%Axis=Y"
set "%down%Axis=Y"
set "%left%Axis=X"
set "%right%Axis=X"

set "delay1=20"
set "delay2=15"
set "delay3=10"
set "delay4=7"
set "delay5=5"
set "delay6=3"
set "delay0=0"

set "desc1=Sluggard"
set "desc2=Crawl"
set "desc3=Slow"
set "desc4=Normal"
set "desc5=Fast"
set "desc6=Insane"
set "desc0=Unplayable"

set "spinnerDelay=3"

set /a "width-=1, height-=1"


::---------------------------
:: define macros

::define a Line Feed (newline) string (normally only used as !LF!)
set LF=^


::Above 2 blank lines are required - do not remove

::define a newline with line continuation
set ^"\n=^^^%LF%%LF%^%LF%%LF%^^"

:: setErr
:::  Sets the ERRORLEVEL to 1
set "setErr=(call)"

:: clrErr
:::  Sets the ERRORLEVEL to 0
set "clrErr=(call )"


:: getKey  ValidKeys
::: Check for keypress. Only accept keys listed in ValidKeys
::: Return result in Key variable. Key is undefined if no valid keypress.
set getKey=%\n%
for %%# in (1 2) do if %%#==2 (for /f "eol= delims= " %%1 in ("!args!") do (%\n%
  set "validKeys=%%1"%\n%
  set "key="%\n%
  ^<^&9 set /p "key="%\n%
  if defined key if "!key!" neq ":" (%\n%
    set /a key-=1%\n%
    for %%K in (!key!) do set "key=!keys:~%%K,1!"%\n%
  )%\n%
  for %%K in (!key!) do if "!validKeys:%%K=!" equ "!validKeys!" set "key="%\n%
)) else set args=


:: draw
:::  draws the board
set draw=%\n%
cls%\n%
for /l %%Y in (0,1,%height%) do echo(!line%%Y!%\n%
echo Speed=!Difficulty!%\n%
echo Score=!score!


:: test  X  Y  ValueListVar
:::  tests if value at coordinates X,Y is within contents of ValueListVar
set test=%\n%
for %%# in (1 2) do if %%#==2 (for /f "tokens=1-3" %%1 in ("!args!") do (%\n%
  for %%A in ("!line%%2:~%%1,1!") do if "!%%3:%%~A=!" neq "!%%3!" %clrErr% else %setErr%%\n%
)) else set args=


:: plot  X  Y  ValueVar
:::  places contents of ValueVar at coordinates X,Y
set plot=%\n%
for %%# in (1 2) do if %%#==2 (for /f "tokens=1-3" %%1 in ("!args!") do (%\n%
  set "part2=!line%%2:~%%1!"%\n%
  set "line%%2=!line%%2:~0,%%1!!%%3!!part2:~1!"%\n%
)) else set args=


::--------------------------------------
:: start the game
setlocal enableDelayedExpansion
call :initialize


::--------------------------------------
:: main loop (infinite loop)
for /l %%. in (1 0 1) do (

  %=== compute time since last move ===%
  for /f "tokens=1-4 delims=:.," %%a in ("!time: =0!") do set /a "t2=(((1%%a*60)+1%%b)*60+1%%c)*100+1%%d-36610100, tDiff=t2-t1"
  if !tDiff! lss 0 set /a tDiff+=24*60*60*100

  if !tDiff! geq !delay! (
    %=== delay has expired, so time for movement ===%

    %=== establish direction ===%
    %getKey% ASDW
    for %%K in (!key!) do if "!%%KAxis!" neq "!axis!" (
      set /a "xDiff=xDiff%%K, yDiff=yDiff%%K"
      set "axis=!%%KAxis!"
    )

    %=== erase the tail ===%
    set "TX=!snakeX:~-2!"
    set "TY=!snakeY:~-2!"
    set "snakeX=!snakeX:~0,-2!"
    set "snakeY=!snakeY:~0,-2!"
    %plot% !TX! !TY! space

    %=== compute new head location and attempt to move ===%
    set /a "X=PX+xDiff, Y=PY+yDiff"
    set "X= !X!"
    set "Y= !Y!"
    set "X=!X:~-2!"
    set "Y=!Y:~-2!"
    (%test% !X! !Y! playerSpace) && (

      %=== move successful ===%

      %=== remove the new head location from the empty list ===%
      for %%X in ("!X!") do for %%Y in ("!Y!") do set "empty=!empty:#%%~X %%~Y=!"

      (%test% !X! !Y! food) && (
        %=== moving to food - eat it ===%

        %=== restore the tail ===%
        %plot% !TX! !TY! body
        set "snakeX=!snakeX!!TX!"
        set "snakeY=!snakeY!!TY!"

        %=== increment score and locate and draw new food ===%
        set /a "score+=1, F=(!random!%%(emptyCnt-=1))*6+1"
        for %%F in (!F!) do (%plot% !empty:~%%F,5! food)

      ) || (
        %=== moving to empty space ===%

        %=== add the former tail position to the empty list ===%
        set "empty=!empty!#!TX! !TY!"
      )

      %=== draw the new head ===%
      if defined snakeX (%plot% !PX! !PY! body)
      %plot% !X! !Y! head

      %=== Add the new head position to the snake strings ===%
      set "snakeX=!X!!snakeX!"
      set "snakeY=!Y!!snakeY!"
      set "PX=!X!"
      set "PY=!Y!"

      %draw%

    ) || (

      %=== failed move - game over ===%
      %plot% !TX! !TY! body
      call :spinner !PX! !PY! death
      %draw%
      echo(
      call :ask "Would you like to play again? (Y/N)" YN
      if /i "!key!" equ "N" (
        >"%cmdFile%" (echo quit)
        exit
      ) else (
        call :initialize
      )
    )

    set /a t1=t2
  )
)

:ask  Prompt  ValidKeys
:: Prompt for a keypress. ValidKeys is a list of acceptable keys
:: Wait until a valid key is pressed and return result in Key variable
>"%cmdFile%" (echo prompt)
<nul set /p "=%~1 "
:purge
(%getKey% :)
if not defined key goto :purge
:getResponse
(%getKey% %2)
if not defined key (
  >"%cmdFile%" (echo one)
  goto :getResponse
)
exit /b


:spinner  X  Y  ValueVar
set /a d1=-1000000
for /l %%N in (1 1 5) do for %%C in (%spinner%) do (
  call :spinnerDelay
  %plot% %1 %2 %%C
  %draw%
)
call :spinnerDelay
(%plot% %1 %2 %3)
exit /b

:spinnerDelay
for /f "tokens=1-4 delims=:.," %%a in ("!time: =0!") do set /a "d2=(((1%%a*60)+1%%b)*60+1%%c)*100+1%%d-36610100, dDiff=d2-d1"
if %dDiff% lss 0 set /a dDiff+=24*60*60*100
if %dDiff% lss %spinnerDelay% goto :spinnerDelay
set /a d1=d2
exit /b


::-------------------------------------
:initialize
cls

echo Speed Options:
echo                       delay
echo    #   Description  (seconds)
echo   ---  -----------  ---------
echo    1   Sluggard        0.20
echo    2   Crawl           0.15
echo    3   Slow            0.10
echo    4   Normal          0.07
echo    5   Fast            0.05
echo    6   Insane          0.03
echo    0   Unplayable      none
echo(
call :ask "Pick a speed (1-6, 0):" 1234560
set "difficulty=!desc%key%!"
set "delay=!delay%key%!"
echo %key% - %difficulty%
echo(
<nul set /p "=Initializing."
set "axis=X"
set "xDiff=+1"
set "yDiff=+0"
set "empty="
set /a "PX=1, PY=height/2, FX=width/2+1, FY=PY, score=0, emptyCnt=0, t1=-1000000"
set "snakeX= %PX%"
set "snakeY= %PY%"
set "snakeX=%snakeX:~-2%"
set "snakeY=%snakeY:~-2%"
for /l %%Y in (0 1 %height%) do (
  <nul set /p "=."
  set "line%%Y="
  for /l %%X in (0,1,%width%) do (
    set "cell="
    if %%Y equ 0        set "cell=%bound%"
    if %%Y equ %height% set "cell=%bound%"
    if %%X equ 0        set "cell=%bound%"
    if %%X equ %width%  set "cell=%bound%"
    if %%X equ %PX% if %%Y equ %PY% set "cell=%head%"
    if not defined cell (
      set "cell=%space%"
      set "eX= %%X"
      set "eY= %%Y"
      set "empty=!empty!#!eX:~-2! !eY:~-2!"
      set /a emptyCnt+=1
    )
    if %%X equ %FX% if %%Y equ %FY% set "cell=%food%"
    set "line%%Y=!line%%Y!!cell!"
  )
)
(%draw%)
echo(
echo Movement keys: %up%=up %down%=down %left%=left %right%=right
echo Avoid running into yourself (%body%%body%%head%) or wall (%bound%)
echo Eat food (%food%) to grow.
echo(
call :ask "Press any alpha-numeric key to start..." %keys%
>"%cmdFile%" (echo go)
exit /b


::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
:controller

setlocal enableDelayedExpansion
set "cmd=hold"
set "key="
for /l %%. in (1 0 1) do (
  if "!cmd!" neq "hold" (
    %choice% /n /c:!keys!
    set "key=!errorlevel!"
  )
  if exist "%cmdFile%" (
    <"%cmdFile%" set /p "cmd="
    del "%cmdFile%"
  )
  if "!cmd!" equ "quit" exit
  if defined key (
    if "!cmd!" equ "prompt" >&9 (echo :)
    >&9 (echo !key!)
    if "!cmd!" neq "go" set "cmd=hold"
    set "key="
  )
)