how to give a .bat code line a time limit? - batch-file

Question

I want to put a 30s time limit for the :choice Y/N/P and after the time is up goto :start
The code I have need help for the timeing thing
#echo off
:start
echo AmishCraft will start
TIMEOUT /T 5
echo (%time%)
java -Xms2048M -Xmx4096M -jar server.jar
call C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe
ping 1.1.1.1 -n 1 -w 3000 >nul
:choice
set /P a=do you want to restart? Yes No Pause [Y/N/P]?
if /I "%a%" EQU "Y" goto :restart
if /I "%a%" EQU "N" goto :stop
if /I "%a%" EQU "P" goto :pause
goto :start
:restart
cls
echo server will restart
cls
goto :start
:stop
cls
echo closing server
TIMEOUT /T 5
exit
cls
echo server is paused
:pause
:choice
set /P a=do you want start? Restart Stop [R/S]?
if /I "%a%" EQU "R" goto :restart
if /I "%a%" EQU "S" goto :stop
goto :start
pause

Answer 1

/T is the timeout switch for choice.
/D is the switch to define the default errorlevel / option to set if the
time Elapses.
Example:
CHOICE /T 5 /N /C 1234 /M "Select Option 1,2,3 or 4" /D 1
Applies a timeout of 5 seconds, with the errorlevel being set to option 1, equal to errorlevel 1 in this instance.
/N Hides the default Choice Prompt String.
/M Allows you to Define your own Prompt string
/C Allows alphanumerical characters to be defined as Choice options
Note:
Errorlevel is Set from Left to Right with regards to listed options.
After the Choice Command Errorlevel Needs to be Assessed From Highest to lowest
OR
Used Directly; Such as in a Goto :LabelName%errorlevel% Command
* Response to comment *
CHOICE /C 123 /T Timeout 25 /D goto :start /M 1 choice menu 25s
IF %ERRORLEVEL% EQU 1 goto :choice1
There are multiple errors in the above.
/T Timeout 25 should be: /T 25
Timeout is implicit in the /T switch and does NOT form a part of correct usage of the choice command.
/D goto :start should be: /D 1 OR /D 2 OR /D 3
Only the defined /C options should be used following the /D switch
/M 1 choice menu 25s is incorrect.
The prompt after /M should be encased in Doublequotes: "[1] Option 1. [2] Option 2. [3] Option 3."
Errorlevel Assessment should be done on the Line After the CHOICE Command.
Again, to be clear, Assesment should be done from Highest to Lowest. When errorlevel is Assessed following Choice it is actually interpreted as If ERRORLEVEL GTR n , Despite being scripted Using If ERRORLEVEL n
An example of the Correct usage of all of the above:
#echo off
:menu
cls
CHOICE /N /T 25 /C 123 /M "[1] Option 1. [2] Option 2. [3] Start." /D 3
IF ERRORLEVEL 3 (
GOTO :start
) else (
GOTO :choice%errorlevel%
)
:start
ECHO( You are at the start
Pause
GOTO :menu
:choice1
ECHO( You are at option 1
Pause
GOTO :menu
:choice2
ECHO( You are at option 2
Pause
GOTO :menu