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README.md

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Unreal.js

Unreal.js is a plug-in which brings V8-powered Javascript into UnrealEngine4.

Installation

  • Search unreal.js on the epic marketplace
  • Manual installation
  1. git clone https://github.com/ncsoft/Unreal.js-core <YourProject>/Plugins/UnrealJS
  2. cd <YourProject>/Plugins/UnrealJS && ./install-v8-libs

Features

  • Powered by latest V8 (ES6)

  • CommonJS modules

  • Full access to the whole UnrealEngine API

  • Free to subclass existing classes including blueprint

  • Live reload

  • Communicate with outer world: REST(http), process(pipe), arraybuffer, ...

  • Bridge API for editor extension

  • Auto-completion for Visual Studio Code (auto-generated *.d.ts)

  • Debugging within Visual Studio, Visual Studio Code, WebStorm and all IDE which supports V8 protocol

  • Profiling supported by V8

  • Dedicated Javascript console on UnrealEditor

  • (Full) access to existing javascript libraries via npm, bower, ...

Dummy demo

Tutorials & documentation

License

  • Licensed under the BSD 3-Clause "New" or "Revised" License
  • see LICENSE for details

Examples

2048

Springy

Editor extension

Create a new actor

let myActor = new Actor(GWorld,{X:10,Y:20,Z:30});
myActor.SetActorLocation({X:40,Y:80,Z:120});

Subclass an existing class

class MyActor extends Actor {
  properties() {
    this.MyProp/*EditAnywhere+Replicated+int*/;
  }
  RPC(x/*int*/) /*Server+Reliable*/ {
    console.log('This function is replicated',this.MyProp++);
  }
}
let MyActor_C = require('uclass')()(global,MyActor);
if (GWorld.IsServer()) { 
  new MyActor_C(GWorld);
}

Node.js like

let _ = require('lodash');
let kick = () => {
  console.log("Hello timer!",_.keys(this));
  setTimeout(kick,1000);
};
kick();
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