https://github.com/jansedivy/potion

HTML5 canvas game engine
https://github.com/jansedivy/potion

Last synced: 14 days ago
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HTML5 canvas game engine

• Host: GitHub
• URL: https://github.com/jansedivy/potion
• Owner: jansedivy
• License: mit
• Created: 2014-02-03T18:28:08.000Z (almost 11 years ago)
• Default Branch: master
• Last Pushed: 2016-04-16T16:49:51.000Z (over 8 years ago)
• Last Synced: 2024-10-05T00:08:42.369Z (about 1 month ago)
• Language: JavaScript
• Size: 2.24 MB
• Stars: 7
• Watchers: 4
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# Potion

[![npm version](https://badge.fury.io/js/potion.svg)](http://badge.fury.io/js/potion)

Potion is a game library with simple and useful abstractions.

- Asset loader

- Input event handling

- Sound manager

- State manager

- Multi-layered canvas

- HiDPI monitor support

- Debugger for in game logging and switch toggling

#### [Examples](http://potionjs.com)

## Documentation

- [API](/docs/api/)

## Installation

Potion is compatible with CommonJS modules. Can be used with browserify,

webpack and others. You can install it from npm.

```sh

npm install potion

```

There is also a built version you can download

- [potion.js](https://raw.githubusercontent.com/jansedivy/potion/master/build/potion.js)

- [potion.min.js](https://raw.githubusercontent.com/jansedivy/potion/master/build/potion.min.js)

## Usage

```html



```


```javascript

var Potion = require('potion');

var app = Potion.init(document.querySelector('.container'), {

  configure: function() {

    app.resize(400, 400);

  },

  init: function() {

    this.x = 0;

    this.y = 0;

    this.dx = 0;

    this.dy = 0;

  },

  update: function(time) {

    if (app.input.isKeyDown('w')) { this.dy -= 5000 * time; }

    if (app.input.isKeyDown('d')) { this.dx += 5000 * time; }

    if (app.input.isKeyDown('s')) { this.dy += 5000 * time; }

    if (app.input.isKeyDown('a')) { this.dx -= 5000 * time; }

    this.dx = this.dx + (0 - this.dx) * 8 * time;

    this.dy = this.dy + (0 - this.dy) * 8 * time;

    this.x += this.dx * time;

    this.y += this.dy * time;

  },

  render: function() {

    app.video.ctx.fillRect(this.x, this.y, 10, 10);

  }

});

```

## See also

- [Potion Audio](https://github.com/jansedivy/potion-audio)

- [Potion Debugger](https://github.com/jansedivy/potion-debugger)

- [Potion Template](https://github.com/jansedivy/potion-template)

## License

[MIT license](http://opensource.org/licenses/mit-license.php)