raylib + raygui

https://github.com/raysan5/raylib
https://www.raylib.com/examples.html

• Install glfw and build-copy raylib 5 include|lib to ./c/include|lib

• raylib-template or raylib-examples set makefile -I include_path -L lib_path build it

cd raylib-examples

make run
make clean

import oc::raylib::*

const screen_width: i32 = 800
const screen_height: i32 = 450

def main() {
    SetExitKey(KEY_ESCAPE)
    InitWindow(screen_width, screen_height, "base_window")
    defer CloseWindow()
    SetTargetFPS(60)

    //loops --
    let dt: f32 = 0.0
    while(not WindowShouldClose()) {
        //update --
        dt = GetFrameTime()
        let key = GetKeyPressed()
        match key {
            0 => {}
            else => {
                println("Input key: %c", key)
            }
        }

        //draw --
        BeginDrawing()
            ClearBackground(DARKGRAY)

        EndDrawing()
    }
}

• Use tool parse raylib.h, raymath.h gen ocen code if you want :)

./raylib_parser -i ./include/raylib.h -o raylib.oc -f CODE
./raylib_parser -i ./include/raymath.h -o raymath.oc -t RMAPI -f CODE