eva-engine/eva.js

Eva.js is a front-end game engine specifically for creating interactive game projects.


repo name	eva-engine/eva.js
repo link	https://github.com/eva-engine/eva.js
homepage	https://eva.js.org
language	JavaScript
size (curr.)	1726 kB
stars (curr.)	866
created	2021-03-08
license	MIT License

Eva.js (Interactive Game Engine)

npm-version npm-size npm-download

Introduction

Eva.js is a front-end game engine specifically for creating interactive game projects.

Easy to Use: Eva.js provides out-of-box game components for developers to use right away. Yes, it’s simple and elegant!

High-performance: Eva.js is powered by efficient runtime and rendering pipeline (Pixi.JS) which makes it possible to unleash the full potential of your device.

Scalability: Thanks to the ECS(Entity-Component-System) structure, you can expand your needs by highly customizable APIs. The only limitation is your imagination!

Documentation

You can find the Eva.js Documentation on eva.js.org, we appreciate your devotion by sending pull requests to this repository.

Checking out the Live example.

Usage

With NPM

npm i @eva/eva.js @eva/plugin-renderer @eva/plugin-renderer-img --save

In Browser

<script src="https://unpkg.com/@eva/eva.js@1.0.4/dist/EVA.min.js"></script>

Example

<canvas id="canvas" ></canvas>

import { Game, GameObject, resource, RESOURCE_TYPE } from '@eva/eva.js';
import { RendererSystem } from '@eva/plugin-renderer';
import { Img, ImgSystem } from '@eva/plugin-renderer-img';

resource.addResource([
  {
    name: 'imageName',
    type: RESOURCE_TYPE.IMAGE,
    src: {
      image: {
        type: 'png',
        url:
          'https://gw.alicdn.com/tfs/TB1DNzoOvb2gK0jSZK9XXaEgFXa-658-1152.webp',
      },
    },
    preload: true,
  },
]);

const game = new Game({
  systems: [
    new RendererSystem({
      canvas: document.querySelector('#canvas'),
      width: 750,
      height: 1000,
    }),
    new ImgSystem(),
  ],
});

const image = new GameObject('image', {
  size: { width: 750, height: 1319 },
  origin: { x: 0, y: 0 },
  position: {
    x: 0,
    y: -319,
  },
  anchor: {
    x: 0,
    y: 0,
  },
});

image.addComponent(
  new Img({
    resource: 'imageName',
  })
);

game.scene.addChild(image);