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https://github.com/NoelFB/blah

A small 2d c++ game framework
https://github.com/NoelFB/blah

cpp17 game-engine game-engine-2d game-framework

Last synced: 6 days ago
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A small 2d c++ game framework

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## blah
A small 2D C++ Game Framework, using few dependencies and simple code to maintain easy building and portability.

**☆ This will likely see breaking changes! Use at your own risk! ☆**

#### a sample application

```cpp
#include
using namespace Blah;

Batch batch;

int main()
{
Config config;
config.name = "blah app";
config.on_render = []()
{
auto target = App::backbuffer();
target->clear(Color::black);

auto center = Vec2f(target->width(), target->height()) / 2;
auto rotation = Time::seconds * Calc::TAU;
auto transform = Mat3x2f::create_transform(center, Vec2f::zero, Vec2f::one, rotation);

batch.push_matrix(transform);
batch.rect(Rectf(-32, -32, 64, 64), Color::red);
batch.pop_matrix();

batch.render(target);
batch.clear();
};

return App::run(&config);
}

```

#### building
- Requires C++17 and CMake 3.14+
- At least one **Renderer** implementation must be enabled in CMake:
- [OpenGL](https://github.com/NoelFB/blah/blob/master/src/internal/blah_renderer_opengl.cpp) (Default on Linux/macOS) `BLAH_RENDERER_OPENGL`
- [D3D11](https://github.com/NoelFB/blah/blob/master/src/internal/blah_renderer_d3d11.cpp) (Default on Windows) `BLAH_RENDERER_D3D11`
- Additional renderers can be added by implementing the [Renderer Backend](https://github.com/NoelFB/blah/blob/master/src/internal/blah_renderer.h)

#### notes
- There's no Shader abstraction, so you need to swap between GLSL/HLSL depending on the Renderer.
- Only floatN/mat3x2/mat4x4 uniforms are supported.
- No threaded rendering, so it will explode if you try that.