A WIP retro 3D game engine inspired by GoldSrc and Quake
Progress can be found here

• Building
• Running
• Platforms

Using H-74, and test_model.p3m in games/test/

• Dependencies

  • Compiling natively on Unix-like systems
    • GNU Make
    • GCC with GNU Binutils or Clang with LLVM
      • Pass PREFIX=llvm- CC=clang to the Makefile to use Clang
      • On 32-bit HaikuOS, pass CC=gcc-x86 to the Makefile to use the correct GCC executable
    • SDL 2.x or 1.2.x
  • Compiling for Windows
    • Compiling on Windows with MSYS2
      • MSYS2
      • GNU Make
      • GCC with GNU Binutils or Clang with LLVM
        • Pass PREFIX=llvm- CC=clang to the Makefile to use Clang
      • MinGW SDL 2.x or 1.2.x
    • Compiling on Windows without MSYS2
      • Git bash
      • Make for Windows
      • MinGW
      • MinGW SDL 2.x or 1.2.x
    • Cross-compiling on Unix-like platforms
      • GNU Make
      • MinGW
      • MinGW SDL 2.x or 1.2.x
  • Compiling for Windows 2000 or Windows 98 with KernelEx
    • Cross-compiling on Unix-like platforms
      • Wine
    • Cross-compiling on Unix-like platforms and compiling on Windows
      • MinGW 7.1.0 win32 sjlj
        • It might work with other versions but they need to not require ___mb_cur_max_func from msvcrt.dll or AddVectoredExceptionHandler from kernel32.dll
      • psrc-sdl2 MinGW 7.1.0 build
  • Compiling for web browsers using Emscripten
    • GNU Make
    • Emscripten
  • Compiling for the Xbox using the NXDK
    • NXDK
      • The modified CXBE from PR #655 is needed
      • The extract-xiso symlink fixes are recommended
      • See here for NXDK's dependencies
    • pbGL
      1. Go to the NXDK directory
      2. Copy the pbgl folder into lib/
      3. Add include $(NXDK_DIR)/lib/pbgl/Makefile to lib/Makefile
  • Compiling for the Dreamcast using KallistiOS
    • KallistiOS
      • See this wiki page for a tutorial
    • img4dc
      1. Go into the KallistiOS directory
      2. Go into utils/
      3. Git clone https://github.com/Kazade/img4dc
      4. Enter img4dc/ and build it

• Setup

  • Xbox using the NXDK
    1. Create a directory called xiso
    2. Copy (or symlink) the engine directory into xiso/
    3. Copy (or symlink) the games and/or mods you want to include in the disc image
       • There should be a directory (or link) called games, and if you have mods, a directory (or link) called mods
  • Dreamcast using KallistiOS
    1. Create a directory called cdi
    2. Copy (or symlink) the engine directory into cdi/
    3. Copy (or symlink) the games and/or mods you want to include in the disc image
  • Windows 2000 or Windows 98 with KernelEx
    1. Download MinGW 7.1.0 win32 sjlj
       • On Linux, use Wine and add MinGW's bin folder to the PATH (can be done using regedit to modify HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Session Manager\Environment\PATH)
       • On Windows, add MinGW's bin folder to the PATH (can be done using the environment variable editor)
    2. Download the MinGW 7.1.0 build of psrc-sdl2, and extract it to external/Windows_i686
    3. When using the Makefile, ensure that it uses the correct tools
       • On Linux, pass M32=y PREFIX='wine ' CC='wine i686-w64-mingw32-gcc' inc.null=NUL to the Makefile
       • On Windows, pass M32=y PREFIX= CC=i686-w64-mingw32-gcc to the Makefile

• Using the Makefile

  • Makefile rules
    • build - Build an executable or ROM
    • run - Build an executable or ROM and run it
    • clean - Clean up intermediate files
    • distclean - Clean up intermediate and output files
    • externclean - Clean up external tools
  • Makefile variables
    • Build options
      • MODULE - Which module to build (default is engine)
        • engine - Game engine
        • server - Standalone server
        • editor - Map editor
      • CROSS - Cross compile
        • win32 - Windows 2000+ or Windows 98 with KernelEx
        • emscr - Emscripten
        • nxdk - Xbox using NXDK
        • dc - Dreamcast using KallistiOS
      • O - Set the optimization level (default is 2 if DEBUG is unset or g if DEBUG is set)
      • M32 - Set to y to produce a 32-bit binary
      • NATIVE - Set to y to tune build for native system
      • DEBUG - Enable debug symbols and messages
        • 0 - Symbols only
        • 1 - Basic messages
        • 2 - Advanced messages
        • 3 - Detailed messages
      • ASAN - Set to y to enable the address sanitizer (requires DEBUG to be set)
      • NOSTRIP - Set to y to not strip symbols
      • NOLTO - Set to y to disable link-time optimization (ignored if DEBUG is set)
      • NOFASTMATH - Set to y to disable -ffast-math
      • NOSIMD - Set to y to not use SIMD
      • NOMT - Set to y to disable multithreading
    • Features
      • USEDISCORDGAMESDK - Set to y to use the Discord Game SDK
      • USEGL - Set to y to include OpenGL support
      • USEGL11 - Set to y to include OpenGL 1.1 support
      • USEGL33 - Set to y to include OpenGL 3.3 support
      • USEGLES30 - Set to y to include OpenGL ES 3.0 support
      • USEGLAD - Set to y to use glad instead of the system's GL library directly
      • USEWEAKGL - Set to y to mark gl[A-Z]* symbols as weak
      • USEMINIMP3 - Set to y to include MiniMP3 for MP3 support
      • USESTDTHREAD - Set to y to use C11 threads
      • Windows
        • USEWINPTHREAD - Set to y to use winpthread instead of win32 threads
    • Toolchain
      • CC - C compiler
      • LD - Linker (defaults to CC's value)
      • AR - Archiver
      • STRIP - Symbol remover
      • OBJCOPY - Executable editor
      • PREFIX - Text to prepend to tool names
      • CFLAGS - Extra C compiler flags
      • CPPFLAGS - Extra C preprocessor flags
      • LDFLAGS - Extra linker flags
      • LDLIBS - Extra linker libraries
      • RUNFLAGS - Flags to pass to the executable
      • EMULATOR - Command used to run the executable or ROM
      • EMUFLAGS - Flags to pass to the emulator
      • EMUPATHFLAG - Flag used to specify the executable or ROM path
      • Windows
        • WINDRES - Windows resource compiler
      • NXDK
        • XBE_TITLE - XBE title and XISO name (default is PlatinumSrc)
        • XBE_TITLEID - XBE title ID (default is PQ-001)
        • XBE_VERSION - XBE version (default is taken from version.h)
        • XBE_XTIMAGE - Path to XPR image (default is icons/engine.xpr)
        • XISO - Path to write XISO to (default is $(OUTDIR)/$(XBE_TITLE).xiso.iso)
        • XISODIR - Path to make the XISO from (default is $(OUTDIR)/xiso)
      • Dreamcast
        • IP_TITLE - IP.BIN title and CDI name (default is PlatinumSrc)
        • IP_COMPANY - IP.BIN company name (default is PQCraft)
        • IP_MRIMAGE - Path to MR image (default is icons/engine.mr)
        • CDI - Path to write CDI to (default is $(OUTDIR)/$(IP_TITLE).cdi)
        • CDIDIR - Path to make the CDI from (default is $(OUTDIR)/cdi)

  Examples:

  make -j$(nproc)
  

  make -j$(nproc) run
  

  make DEBUG=1 ASAN=y -j$(nproc) run
  

  make CROSS=nxdk DEBUG=0 -j$(nproc) run
  

• Dependencies

  • Running the engine or editor on Unix-like platforms
    • SDL 2.x or 1.2.x

• Running the engine

  1. Download a game (the engine will not run without a game)
     • H-74
  2. Drop the game into a directory called games and use the -game option, or ensure the defaultgame variable in engine/config/config.cfg is set to the game's directory name
  3. Put any mods into a directory called mods and use the -mods option, or ensure they are listed in the mods variable in one of the configs
     • You can use config/config.cfg in engine/ or in the game's local data directory (usually located in ~/.local/share/ under Linux and other Unix-like systems, and %AppData%\Roaming\ under Windows)
     • Mods are listed as comma-separated values without spaces between values
  4. Run the executable

• Supported
  • Linux
  • Windows 2000+
  • Windows 98 with KernelEx
  • MacOS
  • HaikuOS
  • Emscripten
  • Xbox (NXDK)
  • Dreamcast
• Untested
  • FreeBSD
  • NetBSD
  • OpenBSD
  • Windows 9x no KernelEx
• Wanted
  • Android
    • Need to finish the touch UI
    • Need to figure out how to build directly from the Makefile
  • UWP?
    • Requires D3D or can use ANGLE for OpenGL ES 3.0
  • Xbox (XDK)?
    • No OpenGL
    • Uses MSVC
  • PS2
    • ps2gl is not OpenGL
  • PSP
  • PS Vita
  • 3DS
  • GameCube?
    • SDL 1.2 instead of 2.x
    • OpenGX is not OpenGL and gl2gx is unmaintained
  • Wii?
    • SDL 1.2 instead of 2.x
    • OpenGX is not OpenGL and gl2gx is unmaintained
  • MSDOS?
    • Requires low-level tomfoolery