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: about 1 month ago
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A small 2d c++ game framework

• Host: GitHub
• URL: https://github.com/NoelFB/blah
• Owner: NoelFB
• License: mit
• Created: 2020-08-26T07:03:50.000Z (over 4 years ago)
• Default Branch: master
• Last Pushed: 2023-04-27T17:30:37.000Z (over 1 year ago)
• Last Synced: 2024-10-13T16:20:54.265Z (2 months ago)
• Topics: cpp17, game-engine, game-engine-2d, game-framework
• Language: C++
• Homepage:
• Size: 945 KB
• Stars: 578
• Watchers: 16
• Forks: 52
• Open Issues: 2
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

• awesome-game-engine-dev - blah - Small 2D game framework. (Libraries / C++)

README

        
## 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.