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Lazarus

The Lazarus project aims to preserve Diablo II by reimplementing the game engine in the Go programming language. Lazarus is a drop-in replacement for the original game executable; the user is responsible for supplying the game assets (namely the MPQ files) from the official game media.

Building

It is not currently possible to use go get to install all of the packages in the project in one step; some assembly is required. Follow the instructions below to set up a build environment from a fresh install of your 64-bit operating system of choice.

Linux

Lazarus is primarily being developed on Fedora, but the required package names are also provided for Ubuntu.

  1. Install the required packages (for Fedora users):
    # sudo dnf install golang gcc-c++ cmake make git SDL2-devel mesa-libGL-devel zlib-devel bzip2-devel
    
    Install the required packages (for Ubuntu users):
    # sudo apt-get install golang g++ cmake make git libsdl2-dev libgl1-mesa-dev zlib1g-dev libbz2-dev
    
  2. Build the Dear ImGui wrapper package:
    $ go get github.com/FooSoft/lazarus/platform/imgui
    
    Go will fetch the code, but Cgo will fail to link the cimgui wrapper; we need to configure and build it:
    $ cd $GOPATH/src/github.com/FooSoft/lazarus/platform/imgui/cimgui
    $ cmake -DIMGUI_STATIC="yes" .
    $ make
    
    You should now have a cimgui.a statically linked library in the cimgui directory.
  3. Build the StormLib wrapper package:
    $ go get github.com/FooSoft/lazarus/formats/mpq
    
    Go will fetch the code, but Cgo will fail to link the StormLib wrapper; we need to configure and build it:
    $ cd $GOPATH/src/github.com/FooSoft/lazarus/formats/mpq/stormlib
    $ cmake .
    $ make
    
    You should now have a libstorm.a statically linked library in the stormlib directory.

Windows

Lazarus is only tested on Windows 10, but should in theory run on anything newer than Windows XP.

  1. Download the latest 64-bit MSI installer for Go from the official homepage; install to the default directory.
  2. Download and the latest 64-bit EXE installer for MSYS2 from the official homepage; install to the default directory.
  3. Run MSYS2 MinGW and install the required packages:
    $ pacman -S mingw-w64-x86_64-gcc cmake make git mingw-w64-x86_64-SDL2 zlib-devel libbz2-devel
    
  4. Add C:\msys64\usr\bin and C:\msys64\mingw64\bin to your system's PATH environment variable.
  5. Build the Dear ImGui wrapper package:
    $ go get github.com/FooSoft/lazarus/platform/imgui
    
    Go will fetch the code, but Cgo will fail to link the cimgui wrapper; we need to configure and build it:
    $ cd %GOPATH%/src/github.com/FooSoft/lazarus/platform/imgui/cimgui
    $ cmake -DIMGUI_STATIC="yes" .
    $ make
    
    You should now have a cimgui.a statically linked library in the cimgui directory.
  6. Build the StormLib wrapper package:
    $ go get github.com/FooSoft/lazarus/formats/mpq
    
    Go will fetch the code, but Cgo will fail to link the StormLib wrapper; we need to configure and build it:
    $ cd %GOPATH%/src/github.com/FooSoft/lazarus/formats/mpq/stormlib
    $ cmake .
    $ make
    
    You should now have a libstorm.a statically linked library in the stormlib directory.

License

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.