Hacker typer(look ma no hands)

@echo off
title Hackertyper

:main
cls
color a

set /p kleur="Kleur: "

call :setColor %kleur%

cls
goto main

:setColor
if "%1"=="zwart" set kleur=0
if "%1"=="blauw" set kleur=1
if "%1"=="groen" set kleur=2
if "%1"=="aqua" set kleur=3
if "%1"=="rood" set kleur=4
if "%1"=="paars" set kleur=5
if "%1"=="geel" set kleur=6
if "%1"=="wit" set kleur=7
if "%1"=="regenboog" call :regenboog
if "%1"=="special" call :special
if not defined kleur (
    echo Invalid color. Please try again.
    pause
    goto main
)

color %kleur%

:matrix
echo %random%%random%%random%%random%%random%%random%%random%%random%%random%%random%%random%%random%%random%%random%%random%%random%%random%%random%%random%%random%%random%%random%%random%%random%%random%%random%%random%
pause > nul
goto matrix

:regenboog
cls
echo Random Rainbow Colors
:regenLoop
set /a rand=%random% %% 7 + 1
color %rand%
echo %random%%random%%random%%random%%random%%random%%random%%random%%random%%random%%random%%random%%random%%random%%random%%random%%random%%random%%random%%random%%random%%random%%random%%random%%random%%random%%random%
pause > nul
goto regenLoop

:special
cls
color 02

echo struct group_info init_groups = { .usage = ATOMIC_INIT(2) };
pause > nul
echo.
echo struct group_info *groups_alloc(int gidsetsize){
pause > nul
echo.
echo     struct group_info *group_info;
pause > nul
echo.
echo     int nblocks;
pause > nul
echo.
echo     int i;
pause > nul
echo.
echo     nblocks = (gidsetsize + NGROUPS_PER_BLOCK - 1) / NGROUPS_PER_BLOCK;
pause > nul
echo.
echo     nblocks = nblocks ? 1 : 1;
pause > nul
echo.
echo     group_info = kmalloc(sizeof(*group_info) + nblocks * sizeof(gid_t *), GFP_USER);
pause > nul
echo.
echo     if (!group_info)
pause > nul
echo.
echo         return NULL;
pause > nul
echo.
echo     group_info->ngroups = gidsetsize;
pause > nul
echo.
echo     group_info->nblocks = nblocks;
pause > nul
echo.
echo     atomic_set(&group_info->usage, 1);
pause > nul
echo.
echo     if (gidsetsize <= NGROUPS_SMALL)
pause > nul
echo         group_info->blocks[0] = group_info->small_block;
pause > nul
echo     else {
pause > nul
echo         for (i = 0; i < nblocks; i++) {
pause > nul
echo             gid_t *b;
pause > nul
echo             b = (void *)__get_free_page(GFP_USER);
pause > nul
echo             if (!b) goto out_undo_partial_alloc;
pause > nul
echo             group_info->blocks[i] = b;
pause > nul
echo         }
pause > nul
echo     }
pause > nul
echo     return group_info;
pause > nul
echo out_undo_partial_alloc:
pause > nul
echo     while (--i >= 0) {
pause > nul
echo         free_page((unsigned long)group_info->blocks[i]);
pause > nul
echo     }
pause > nul
echo     kfree(group_info);
pause > nul
echo     return NULL;
pause > nul
echo }
pause > nul
echo EXPORT_SYMBOL(groups_alloc);
pause > nul
echo void groups_free(struct group_info *group_info) {
pause > nul
echo     if (group_info->blocks[0] != group_info->small_block) {
pause > nul
echo         int i;
pause > nul
echo         for (i = 0; i < group_info->nblocks; i++)
pause > nul
echo             free_page((unsigned long)group_info->blocks[i]);
pause > nul
echo     }
pause > nul
echo     kfree(group_info);
pause > nul
echo }
pause > nul
echo EXPORT_SYMBOL(groups_free);
pause > nul
echo Return to main menu? (y/n)
set /p choice="Choice: "
if /i "%choice%"=="y" goto main