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## blah ## blah
a small C++ game framework for 2D games. a small C++ game framework for 2D games.
goal is to be simple and use as few dependencies as possible, to maintain easy building and portability.
this will likely see breaking changes. this will likely see breaking changes.
#### prerequisites #### building
- A C++17 compiler and CMake - Requires C++17 and CMake
- Only an SDL2 `platform backend` [is done](https://github.com/NoelFB/blah/blob/master/private/blah/internal/platform_backend_sdl2.cpp). CMake will need to find SDL2 via `SDL2_INCLUDE_DIRS` and `SDL2_LIBRARIES` - The [SDL2 platform backend](https://github.com/NoelFB/blah/blob/master/private/blah/internal/platform_backend_sdl2.cpp) can be enabled in CMake with `BLAH_USE_SDL2`, and setting `SDL2_INCLUDE_DIRS` and `SDL2_LIBRARIES`
- Only an OpenGL `graphics backend` [is done](https://github.com/NoelFB/blah/blob/master/private/blah/internal/graphics_backend_gl.cpp), so it requires OpenGL. - The [OpenGL graphics backend](https://github.com/NoelFB/blah/blob/master/private/blah/internal/graphics_backend_gl.cpp) can be enabled in CMake with `BLAH_USE_OPENGL`.
- Other backends can be added by implementing the [Platform Backend](https://github.com/NoelFB/blah/blob/master/private/blah/internal/platform_backend.h) or [Graphics Backend](https://github.com/NoelFB/blah/blob/master/private/blah/internal/graphics_backend.h).
#### notes #### notes
- There's a custom "Vector" and "StackVector" classes that are not full replacements for std::vector.
- There's no Shader abstraction, so the [Sprite Batcher](https://github.com/NoelFB/blah/blob/master/public/blah/drawing/batch.h) has hard-coded GLSL. This will need to change. - There's no Shader abstraction, so the [Sprite Batcher](https://github.com/NoelFB/blah/blob/master/public/blah/drawing/batch.h) has hard-coded GLSL. This will need to change.
- The rendering layer may be replaced with [FNA3D](https://github.com/FNA-XNA/FNA3D), [BGFX](https://github.com/bkaradzic/bgfx), [Sokol](https://github.com/floooh/sokol), or something else. - The rendering layer may be replaced with [FNA3D](https://github.com/FNA-XNA/FNA3D), [BGFX](https://github.com/bkaradzic/bgfx), [Sokol](https://github.com/floooh/sokol), etc, or I may attempt to write custom backends for D3D11/Metal/Vulkan myself, like the OpenGL backend.
- There's no Audio layer implementation yet. - There's no Audio API or backend implementation yet.
- No threaded rendering so the OpenGL implementation will explode if you try that - No threaded rendering so the OpenGL implementation will explode if you try that
#### a sample application #### a sample application