Added a crude build script, DirectX 9 documentation

README.md

@@ -10,3 +10,16 @@ while using files from [TMP4's project](https://metin2.dev/topic/27610-40250-ref
 Except for some work in order to ensure compatibility with the server, this client is pretty much
 unchanged.
 
+## Requirements
+
+### Installing DirectX 9.0c
+The client has been updated to DirectX 9. This means that if DirectX 9 is not installed on your computer, you might be met with one of these error messages:
+
+![picture](/doc/img/directx-error-1.png)
+![picture](/doc/img/directx-error-2.png)
+
+In this case, simply [download the DirectX End-User Runtimes (June 2010) from Microsoft's website](http://download.microsoft.com/download/8/4/A/84A35BF1-DAFE-4AE8-82AF-AD2AE20B6B14/directx_Jun2010_redist.exe) (SHA-1 checksum: `7E5D2E5E1A13FBC47F990CC55CBDB428CD12F759`). This is a self-extracting archive, so simply create a new folder, run the executable and extract its contents to that folder.
+
+In this working folder, find and run `DXSETUP.exe` in order to start the install.
+
+After the installation is complete, your client should run without issue.

build.bat

@@ -0,0 +1,58 @@
+@echo off
+
+ECHO ======================================================
+ECHO The Old Metin2 Project - Automated client build script
+ECHO Only use on a clean project directory.
+ECHO ======================================================
+
+rem SET M2_MSVC_DIR=C:\Program Files\Microsoft Visual Studio\2022\Community\
+rem SET M2_PML_PATH=C:\Users\User\Path\To\PackMakerLite\PackMakerLite.exe
+
+rem Check the environment variables
+VERIFY OTHER 2>nul
+SETLOCAL ENABLEEXTENSIONS
+IF ERRORLEVEL 1 ECHO Unable to enable extensions
+IF NOT DEFINED M2_MSVC_DIR (
+	ECHO M2_MSVC_DIR is NOT defined! Please define M2_MSVC_DIR with the path of your local MSVC install.
+	EXIT /B -1
+)
+IF NOT DEFINED M2_PML_PATH (
+	ECHO M2_PML_PATH is NOT defined! Please define M2_PML_PATH with the path of your local PackMakerLite executable.
+	EXIT /B -1
+)
+ENDLOCAL
+
+rem Initialize the MSVC environment
+CALL "%M2_MSVC_DIR%\VC\Auxiliary\Build\vcvars32.bat"
+
+rem Build
+msbuild Metin2Client.sln /p:Configuration=Distribute /p:Platform="Win32"
+
+rem Start assembling the client package
+RMDIR /S /Q dist
+MKDIR dist\
+COPY /Y build\Distribute\UserInterface.exe dist\metin2.exe
+
+rem Copy over the data from the bin directory
+xcopy bin\ dist\ /Y /Q
+DEL /S dist\.gitignore
+xcopy bin\BGM\ dist\BGM\ /E /Y /Q
+xcopy bin\lib\ dist\lib\ /E /Y /Q
+MKDIR dist\mark\
+xcopy bin\miles\ dist\miles\ /E /Y /Q
+MKDIR dist\pack\
+COPY /Y bin\pack\Index dist\pack\
+COPY /Y bin\pack\*.rdch dist\pack\
+MKDIR dist\screenshot\
+xcopy bin\upload\ dist\upload\ /E /Y /Q
+
+rem Build and copy the archives
+DEL /F /Q "bin\pack\*.eix"
+DEL /F /Q "bin\pack\*.epk"
+
+FOR /d %%i IN ("bin\pack\*") DO (
+	echo Packing %%i
+	%M2_PML_PATH% --nolog --parallel -p "%%i"
+) 
+MOVE /Y bin\pack\*.eix dist\pack\
+MOVE /Y bin\pack\*.epk dist\pack\