# Obelisk (TS)

> Custom port of [obelisk.js](https://github.com/nosir/obelisk.js) to TypeScript, free of side effects.

Obelisk is a JavaScript library for building isometric pixel objects with a simple and flexible API, allowing you to easily add isometric pixel elements like brick, cube, pyramid and slope in HTML5 canvas. Obelisk strictly follows pixel neat pattern: lines with 1:2 pixel dot arrangement, leading to an angle of 22.6 degrees.

<img width="112" height="109" src="http://nosir.github.io/obelisk.js/images/logo.png"/>

## Installation

```sh
# NPM
npm install @storiny/obelisk

# Yarn
yarn add @storiny/obelisk
```

### CDN

```html
<!-- UNPKG -->
<script src="https://unpkg.com/@storiny/obelisk"></script>

<!-- JSDelivr -->
<script src="https://cdn.jsdelivr.net/npm/@storiny/obelisk"></script>

<script>
  // UMD module is exposed through the "obelisk" global variable.
  console.log(obelisk);
</script>
```

## Breaking changes

- Does not support canvas from jQuery.
- Requires DOM, might break on the server side with node-canvas (at least for now).

## Docs

Available at https://storiny.github.io/obelisk (TS).

## Usage

Package exports named imports (tree shaking is supported).

```ts
import {
  Point,
  PixelView,
  CubeDimension,
  ColorPattern,
  CubeColor,
  Cube
} from '@storiny/obelisk';

// Create a canvas 2D point for pixel view world
const point = new Point(200, 200);

// Create view instance to nest everything
// Canvas must be a DOM elemenet
const pixelView = new PixelView(canvas, point);

// Create cube dimension and color instance
const dimension = new CubeDimension(80, 100, 120);
const gray = ColorPattern.GRAY;
const color = new CubeColor().getByHorizontalColor(gray);

// Build cube with dimension and color instance
const cube = new Cube(dimension, color, true);

// Render cube primitive into view
pixelView.renderObject(cube);
```

View more on the original [repository](https://github.com/nosir/obelisk.js).