Untitled Game Engine

Untitled Game Engine (UGE) is a simple C++ library for making SDL2 games.

Build Instructions

Make sure you have SDL2 installed on your system.

sdl2-config --version

Linux Install

Debian

sudo apt install libsdl2-dev

Fedora

sudo dnf install SDL2-devel

Arch Linux

sudo pacman -S sdl2

Windows Install

Visit libsdl.org and download the latest SDL2 release.

Build UGE

Linux

Run the scripts/build.sh script to build UGE and Sandbox.

sh scripts/build.sh

Note: Make sure to run from the base directory.

Windows

1. Install and run premake5.
2. Use build tool you've defined in premake to build UGE and Sandbox.

Run Sandbox

Run executable from bin/.

Usage

#include "uge.h"

#include <SDL2/SDL.h>

struct roadrunner {
    uge::vector2 pos;
    int speed = 3;
};

class app : public uge::window {
public:
    app() : uge::window("app", { 800, 600 }) {}

    roadrunner steve = { 20, 10 };
protected:
    void on_ready() override {
        _clear_color = { 0x11, 0x11, 0x11, 0xFF };
        _fps_limit = 30;
    }

    void on_draw() override {
        draw_rect(steve.pos, { 20, 20 }, { 255, 0, 255 });
    }

    void on_update() override {
        steve.pos.x += steve.speed;
    }

    void on_event(SDL_Event& event) override {
        if (event.key.keysym.sym == SDLK_ESCAPE) {
            stop();
        }
    }
};

int main() {
    app app;
    app.start();
}