The Elf Game Engine

Introduction

The Elf Game Engine (ElfGE) is a full-functional game engine based on modern C++ and OpenGL, it is cross-platform and compatible with any device that support OpenGL.

The ElfGE provide an hierarchical game object and component model, which is useful for abstraction of your game. An event-loop based logic processing system is built in our engine. We also provide rich built-in components for accelerating your development, including lighting, physics engine, collision detection, skeletal animation, particle effect, dynamic water surface, multiple material, shadow mapping and interactive UI system.

Please feel free to clone or fork this project.

Example

Here are some example for ElfGE, we built a simple FPS game using ElfGE and its built-in components. Here are our game screenshots.

How to Use

Requirement: cmake(>=3.6), gcc(>=5), glew, glfw3, assimp, freetype

for macOS users

we recommend use homebrew to install all dependencies

brew update
brew install cmake gcc glew glfw assimp freetype

for linux users

linux users could use apt-get or yum or pacman to install package. for example, ubuntu users could use the following commands:

sudo apt-get update
sudo apt-get install cmake libglew-dev libglfw3 libassimp-dev libfreetype6 libfreetype6-dev

After installation of all requirement packages, you can use cmake to compile our project according to our CMakeList.txt

How to Develop

Add/Change a scene

The default scene setting is located in Assets/Entry.cpp, you could just add a new scene file, and change the setting.

At runtime, using Runtime::setScene(Scene *scene) to change the scene.

Add a new component

It is easy for you to add any component. First, you should add your own component .h file and .cpp file. Then, add a class that extend class Component. There is no necessary method for your to implement in subclass. Normally, you should override start() and update() method for your purpose, and override updateGraphics() if you would like to draw sth.

Make a Scene

For any scene object, it should implement start(), update() and destroy(), you should do correct thing in these functions. For example, in start() function, you could do some initialization like createGameObject() or createComponent(), in update() function, you could translate your object using statements like obj.transform.translate(glm::vec3(1,0,0)).

The hierarchy of our components

The following graph introduce the base inheritance relation of ElfGE

Miscellaneous

This project is a course project for Computer Graphics (Fall 2017) in Zhejiang University. please do not use this project as your homework for any course, which could be regard as plagiarism.