circles.jsv0.2.0
Circle user interface library targeted for artificial life simulations.
Install
Installation
Browsers
<script src="scripts/circles.js"></script>
CommonJS & Node.js
$ npm install circles
---
> var circles = require('circles');
API
circles.createWorld()
Creates canvas element and required styles. The element resizes automatically on window resize.
var world = circles.createWorld()
world.createCircle(x, y, r, color)
Position and radius in pixels. Color can be any canvas fill style, e.g. '#ff0000' or 'red'
var circle = world.createCircle(100, 200, 20, 'red')
world.searchInside(x, y, r)
Return array of circles inside the specified circle area. Use this for collision detection.
world.on(event, handler)
Possible events: 'tap'
world.off(event)
Remove event handler.
circle.moveTo(x, y)
circle.moveBy(dx, dy)
circle.movePolar(distance, angle)
Move circle to the specified direction. Angle in radians.
circle.moveToward(x, y, distance)
Move circle toward the specified point.
circle.on(event, handler)
Possible events: 'tap'
circle.off(event)
Remove event handler.
Notes for developers
Run tests with $ npm test.
Build with $ npm run build.
Serve with $ npm start. Then see localhost:8000.
Todo
- tests