GameCore, a 2D game java library

Versatile Java game engine with pluggable backends

This engine aims to be platform and backend independent, clean and simple.

It's a bootstrap for 2D java games.

(You could probably do 3D in it as well, with the LWJGL backend and LWJGL functions. But it'd be ugly.)

DEPENDENCIES

If you intend to build it from source, you will need those Eclipse projects in your workspace:

• MightyPork/mightyutils - Game utils

BACKENDS

Backends provide implementation to some abstract GameCore modules:

• MightyPork/gamecore-lwjgl - LWJGL backend for GameCore

How to use it

TODO: Better docs and demo

Basically, all you have to do is make an instance of App, with a backend of choice (only LWJGL now).

It's all about init tasks

You then add some InitTasks to the App, maybe some plugins, and start() it.

This can be done in the constructor, or somewhere else, that doesn't really matter.

All of the game configuration is done using the InitTasks. There is a bunch of init tasks already added, each task has a name and a list of tasks it depends upon. It also has a priority, which affects order (but dependencies must already be loaded).

You can add task to setup WorkDir, to define config file locations and contents, to set up window size, to load resources and so on.

Not really, it's all about EventBus

Once init tasks are initialized, the next phase comes. The MainLoop will be executed, providing delta timing to the whole game.

This is done via an EventBus system, the core of the whole engine. Everything is done using Events. Well, almost.

• Delta timing is via events.
• Shutdown is done via event.
• Resource loading is via events
• All game logic can be done via events
• User input is via events
• ...

So yeah, lot of stuff.

The GUI

The MainLoop renders something called "main renderable", or UI. What you put there is really up to you, but typically it's a SreenRegistry with some Screens in it.

The UI receives timing events, user input events etc, and can react to them.

There is a little library of UI layouts and components that can be used, or you may make your own with no big hassle.

Make use of MightyUtils!

There is a HUGE amount of cool utils in the MightyUtils library. One of them is even the EventBus itself.

There is a magnificent math library with dynamic constraints, the base of the GUI system. There is even a custom "serialization" system called ION.

Check it out!