This is a game engine which is developed in C++ with OpenGL. This engine contains an in-house GUI system, linear algebra math and loads of abstraction of OpenGL object to ease the development of games.
The future goal of the project is to have a full blown game editor, like Unity or Godot, which is able to create games without interfacing with C++.
The Editor is currently under construction and at the time of writing supports adding entities to the scene, moving them around and changing their color. Below is an example image of the current state of the editor.
Currently not implemented.
The idea is to have a runtime executable which can load Greet-Engine project files to run them as a normal game.
The interface will probably be something like greet-runtime <project-file-name>, but will probably be changed in the future.
Not entirely sure if this will be the goto way to run the games created in the engine.
In the future the games might be run through their own executable without the need for the runtime executable.
But still unsure how that will be done.
Demo image of the in-house GUI system, with radiobuttons, text-fields, treeview, color-pickers, tab-docking, and much more. The entire GUI is customizable using a layout file and a styling file, much like HTML and CSS. This demo can be found within examples/GUIPlayground where the layout and styling files are inside res/gui and res/styling. Note that this image might be out of date of the current state of the example.
To run the engine a OpenGL shader version of 4.5 is required. If this version is not met, some rendering might only make use of a pink error shader. Some functionality might work with versions below 4.5, but it is not guaranteed.
This engine uses only four library dependencies to run. These are GLEW, GLFW, FreeImage and FreeType. How to install these on Ubuntu and Manjaro is show below, for other distros there might be similar packages within your package manager. Otherwise you might have to compile it from source from the links of the libraries given above.
Not entirely sure if these work anymore, was a long time since I used Ubuntu. But it atleast gives some hint of what is required.
sudo add-apt-repository ppa:glasen/freetype2
sudo apt update
sudo apt install freetype2-demos libfreeimage3 libfreeimage-dev xorg-dev libglew-dev libglfw3-dev
pamac install freeimage freetype2 glew glfw-x11
To compile it you also need to use an in-house build tool called MakeGen.
To compile the engine you simply run makegen within the Greet-core folder.
To compile and run the example programs run makegen run within the example project folder, ie examples/GUIPlayground.