The aframe-physics-components from romandre

aframe-physics-components's Introduction

aframe-physics-components

Also check out Don McCurdy's physics implementation in aframe-extras.

Experimental physics components for A-Frame VR using cannon.js.

Usage

Browser Installation

Install and use by directly including the browser files:

<head>
  <title>My A-Frame Scene</title>
  <script src="https://aframe.io/releases/0.2.0/aframe.min.js"></script>
  <script src="https://github.com/ngokevin/aframe-physics-components/blob/master/dist/aframe-physics-components.min.js"></script>
</head>

<body>
  <a-scene physics-world="gravity: 0 -9.8 0">
    <a-entity physics-body="boundingBox: 1 1 1; mass: 5; velocity: 0.2 0 0"
              geometry="primitive: box" material="color: red"></a-entity>
  </a-scene>
</body>

NPM Installation

Install via NPM:

npm install aframe-physics-components

Then register and use.

require('aframe');
require('aframe-physics-components');

API

physics-body Component

Property	Description	Type	Default Value
angularVelocity	(in deg/s)	vec3	0 0 0
boundingBox	Collision box (in m).	vec3	0 0 0
mass	(in kg)	number	1
velocity	(in m/s)	vec3	0 0 0

Event Name	Description
collide	Emitted when entity collides with another entity. Event contains `contact`.

applyImpulse (impulseVec3, positionVec3)

Applies an impulse (indicated by impulseVec3) at the body's local point (indicated by positionVec3). forceVec3 is in Force / Time (Newtons / Seconds).

// Applies a small force from left-to-right to the top-left of the body.
var hitMeBody = document.querySelector('#hit-me-entity').components['physics-body'];
hitMeBody.applyImpulse({ x: 10, y: 0, z: 0 }, { x: -1, y: 1, z: 0 });

physics-world Component

Property	Description	Default Value
gravity	vec3	0 -9.8 0

Event Name	Description
beginContact	Emitted when an entity in the world begins contact with another entity. Event contains `bodyA` and `bodyB`.
endContact	Emitted when an entity in the world ends contact with another entity. Event contains `bodyA` and `bodyB`.

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