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https://github.com/joafalves/pixel-community

High performance and modular Java/Kotlin 2D Game Framework.
https://github.com/joafalves/pixel-community

framework game-2d game-development game-engine game-engine-2d game-framework gamedev java jvm kotlin lwjgl opengl

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High performance and modular Java/Kotlin 2D Game Framework.

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README

        

![Pixel - Java Game Framework](./.github/IMAGES/banner.png)

![](https://img.shields.io/badge/platform-Windows%20%7C%20Linux%20%7C%20MacOS-lightgrey) ![](https://img.shields.io/badge/java-%3E%3D%2011-green)

## Pixel Framework ##

### What is this repository for? ###

This repository contains the Pixel Framework and associated modules/dependencies.

### Description ###

The Pixel Framework aims to provide a high performance and lightweight OpenGL 2D game development workflow. It is
influenced by the popular XNA framework and is built on top of the [LWJGL](https://www.lwjgl.org/)
and [GLFW](https://www.glfw.org/) projects.

> :book: For practical details on how to use this framework, please check the [wiki page](https://github.com/joafalves/pixel-community/wiki).

Pixel is designed to be modular and easy to extend. Check
[here](https://github.com/joafalves/pixel-community/wiki/E.-Extensions-Overview) for more details on how to use the
available extensions (or how to create your own).

### Examples ##

Check the :file_folder: [demos folder](https://github.com/joafalves/pixel-community/tree/devel/demos) for examples.

##### Basic example (Drawing a Sprite) #####

```java
public class SingleSpriteDemo extends GameWindow {

private Camera2D gameCamera;
private ContentManager content;
private SpriteBatch spriteBatch;

private Texture spriteTex;

public SingleSpriteDemo(GameWindowSettings settings) {
super(settings);
}

@Override
public void load() {
// load up of resources and game utilities:
content = ServiceProvider.create(ContentManager.class);
spriteBatch = ServiceProvider.create(SpriteBatch.class);
gameCamera = new Camera2D(this);

// example of loading a texture into memory:
spriteTex = content.load("", Texture.class);
// ... or with the built-in 'texture' method: content.loadTexture(...)
}

@Override
public void update(DeltaTime delta) {
// game update logic goes here
}

@Override
public void draw(DeltaTime delta) {
// begin the spritebatch phase:
spriteBatch.begin(gameCamera.getViewMatrix(), BlendMode.NORMAL_BLEND);

// sprite draw/put for this drawing phase:
spriteBatch.draw(spriteTex, Vector2.ZERO, Color.WHITE);

// end and draw all sprites stored:
spriteBatch.end();
}

@Override
public void dispose() {
content.dispose();
spriteBatch.dispose();
super.dispose();
}
}
```

> Looking for ECS support? Check [this built-in extension!](https://github.com/joafalves/pixel-community/wiki/E1.-ECS-(Entity-Component-System))

### Project structure ###

The framework functionality is divided into multiple modules which can be imported individually as required.

##### Root directory structure #####

.build/ # Bundle .jar files (run 'bundle' gradle task)
.demos/ # Feature showroom and learning examples
.extensions/ # Extensions for the framework (optional)
├── ext-ecs # Entity component system extension
├── ext-ecs-extra # ECS utility components
├── ext-ldtk # LDTK extension
├── ext-log4j2 # Log4j2 extension
└── ext-tween # Tween extension
.modules/ # The principal modules of the framework
├── commons # Common utility classes
├── content # Common Content classes (Texture, Font, Audio, ...)
├── desktop # Desktop implementation of graphics, content, windowing and others
├── graphics # Graphics API module
├── math # Math module (Vector, Matrix, ...)
└── pipeline # Generic Pipeline processing module
.resources/
└── images # Project resource images
.build.gradle # Gradle build file
.settings.gradle # Gradle settings file

##### Inner module structure #####

.modules/
└── *module* # Presented file structure similar in all modules
├── build # Module build directory
│ ├── docs # Generated documentation files (run 'javadoc' gradle task)
│ └── libs # Generated .jar files (run 'jar' gradle task)
├── src # Module Source folder
│ ├── main # Module Main Source classes
│ └── test # Module Test Source classes
└── build.gradle # Module Gradle build file (contains inner dependency definitions)

### Runtime requirements ###

- Java/JVM 17.x+

### Development requirements ###

- (All Runtime requirements)
- Gradle 8.x+ (gradle wrapper available)

### Runtime OS compatibility ###

Pretty much the same as the [LWJGL](https://www.lwjgl.org/) dependency, which includes:

- Windows (x86, x64, arm64)
- MacOS (x64, arm64)
- Linux (x86, x64, arm64, arm32)

> Requires OpenGL 3.3+ support.

### FAQ ###

1. I'm unable to run Pixel on MacOS due to system error.
- Add `-XstartOnFirstThread` as a java VM Option before running your project.
2. Is Pixel compatible with Kotlin?
- Yes, Pixel is fully compatible with Kotlin. Check
this [demo](https://github.com/joafalves/pixel-community/tree/devel/demos/kotlin) for an example.
3. Is Pixel available as a Maven dependency?
- Yes, Pixel is available as a public Maven
dependency. [Click here](https://github.com/joafalves/pixel-community/wiki/1.-Getting-Started) for more details on
how to import using Maven or Gradle.
4. Is Pixel free?
- Yes, Pixel is completely free to use and distribute as an application dependency.

### Who do I talk to? ###

* It's a bug or a feature request? [Please open an issue](https://github.com/joafalves/pixel-community/issues).
* Repo owner or moderator.