Build.bat

@echo off
setlocal EnableDelayedExpansion

set ROOTPATH=%~dp0

pushd %ROOTPATH%

REM Default to Unreal Engine 4, but can be overriden by any version of UE5, or a source build from Github
if [%1] == [] (
  set ENGINE=4.27
) else (
  set ENGINE=%1
)

if "%ENGINE%" == "4.27" (
  set ENGINEPATH="C:\Program Files\Epic Games\UE_%ENGINE%"
  set UBT=!ENGINEPATH!\Engine\Binaries\DotNET\UnrealBuildTool.exe
) else if "%ENGINE%" == "S" (
  set ENGINEPATH="C:\Workspace\UnrealEngine"
  set UBT=!ENGINEPATH!\Engine\Binaries\DotNET\UnrealBuildTool\UnrealBuildTool.exe
) else (
  set ENGINEPATH="C:\Program Files\Epic Games\UE_%ENGINE%"
  set UBT=!ENGINEPATH!\Engine\Binaries\DotNET\UnrealBuildTool\UnrealBuildTool.exe
)

if not exist %UBT% (
  echo %UBT% not found
  exit /b
)

echo Unsing Unreal Engine %ENGINE% from %ENGINEPATH%

for %%a in (*.uproject) do set "UPROJECT=%CD%\%%a"
if not defined UPROJECT (
  echo *.uproject file not found
  exit /b
)

for %%i in ("%UPROJECT%") do (
  set PROJECT=%%~ni
)

echo Build %UPROJECT% (project '%PROJECT%')

echo on
%UBT% %UPROJECT% Win64 Development %PROJECT%Editor
@echo off