/Little-Ruler

An OpenGL game engine that can be built for Android and Windows.

Primary LanguageC++MIT LicenseMIT

한국어

Little Ruler

  • My own game engine project. Code once, build for both Windows and Android.
  • Relavant game engine source codes are in {repo_root}/engine.

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Developer


Folders in Repo Root

engine

  • All the C++ codes for game are here.

extern

  • Git submodules are here.
  • You shouldn't touch anything inside it.

externtool

  • Some submodules does not include CMakeLists.txt so I make ones myself.
  • Those CMakeLists.txt are here.

LittleRulerAndroid

  • Android Studio project to build apk to run on Android platform.
  • It contains some java codes to define some Android views.
  • It uses C++ codes in {repo_root}/engine via CMake.

Resource

  • Resource files such as 3D models, images, texts, fonts are here.

Control

Windows

  • WASD : Horizontal movement
  • Keyboard arrows : View direction
  • Mouse click AND drag (not OR) : Same as touch control on phones, which controls view direction.

Android

  • White point on lower left side of the screen : D-Pad
  • Rest of the screen : View direction

How to Build

  • Clone this repo with --recurse-submodules option like below.
  • git clone --recurse-submodules -j8 https://github.com/SausageTaste/Little-Ruler
  • Install python interpreter and add it to PATH environment variable. (GLAD lib requires it)

Android

  • Open {repo_root}/LittleRulerAndroid folder on Android Studio and just click build.

Windows

  • Build {repo_root}/engine/LittleRulerWindows/CMakeLists.txt with CMake.
  • I only tested on Visual Studio 2019 and mingw-w64 8.1.0.
  • I don't know why but you need to do Build Solution (F7) several times or see error message saying "zlibstatic is not found".

Implementation

By Platforms

Windows Android
Render OpenGL 3.0 OpenGL ES 3.0
Window Creation GLFW Java GLSurfaceView
Filesystem Windows API Android Asset Manager and std::fstream

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