FluffECS

At the heart of this C++17 library is the flf::World class: It takes care of saving all of the entities components in contigous memory. It is designed to make iterations through components as fast as possible, arriving at the same speed as iterating over raw vectors.

Example

#include <FluffECS/World.h>

struct PositionData
{
    float x, y, z;
};

struct VelocityData
{
    float dx, dy, dz;
};

void Update()
{
    flf::World myWorld{};
    myWorld.CreateMultiple(16, PositionData{4.f, 2.f, 0.f}, VelocityData{1.f, 0.f, 0.f});
    
    float deltaTime = 1.f / 60.f;
    myWorld.Foreach(
        [deltaTime](PositionData &position, VelocityData velocity)
        {
            position.x += velocity.dx * deltaTime;
            position.y += velocity.dy * deltaTime;
            position.z += velocity.dz * deltaTime;
        }
    );
}

More examples of how one may use FluffECS can be found under examples/example.cpp

Building

To use FluffECS in your project add the following lines to your CMakeLists.txt:

add_subdirectory(PATH_TO_FLUFF_ECS_TOP_FOLDER)
target_link_libraries(YOUR_TARGET PUBLIC FluffECS)

Optionally you can get FluffECS via the FetchContent module of cmake:

include(FetchContent)

FetchContent_Declare(
        FluffECS
        GIT_REPOSITORY "https://github.com/Greebling/FluffECS"
        GIT_TAG "main" )
FetchContent_MakeAvailable(FluffECS)

target_link_libraries(YOUR_TARGET PUBLIC FluffECS)