Engine

A multiplatform, data-driven 2D game engine written in C++ and scriptable in Lua.

Supported platforms

• Linux
• Windows
• MacOS
• Android

Freatures

• Text rendering (highly performant, font atlas based) - uses TrueType vectorized fonts
  • Font rasterization takes place in a background thread
• PNG texture loading
• Sprite rendering
• Tilemap loading (Tiled json format)
• Touchscreen support on Android (multitouch)
• Keyboard support
• Mouse support (currently supports only click events)
• Multithreaded asset loading
• Shader-based OpenGL/OpenGL ES rendering pipeline
• Lua API that supports most of the above features

Requirements

• Graphics card compatible with one of the following:

  • OpenGL 3.0+
  • OpenGL 2.1 with GL_EXT_framebuffer_object extension
  • OpenGL ES 2.0

  The graphics API is detected automatically on launch.

Building

• An example project that uses the engine as a submodule can be found here
• The project uses CMake
• All required libraries are either found in the system (default on GNU/Linux) or downloaded from GitHub
  • You can manually choose how to obtain libraries by defining the followind CMake build options to ON or OFF:
    • ENGINE_USE_SYSTEM_LUA_LIB - must be manually set to OFF on Debian due to different Lua header directories
    • ENGINE_USE_SYSTEM_GLM_LIB
    • ENGINE_USE_SYSTEM_FREETYPE_LIB
    • ENGINE_USE_SYSTEM_NLOHMANN_JSON_LIB
• The main script, game.lua, must be placed in assets/scripts/ directory