planck-js
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2D physics engine for JavaScript/HTML5 game development
46 lines (42 loc) • 1.52 kB
JavaScript
/*
* Copyright (c) 2016 Ali Shakiba http://shakiba.me/planck.js
* Copyright (c) 2006-2011 Erin Catto http://www.box2d.org
*
* This software is provided 'as-is', without any express or implied
* warranty. In no event will the authors be held liable for any damages
* arising from the use of this software.
* Permission is granted to anyone to use this software for any purpose,
* including commercial applications, and to alter it and redistribute it
* freely, subject to the following restrictions:
* 1. The origin of this software must not be misrepresented; you must not
* claim that you wrote the original software. If you use this software
* in a product, an acknowledgment in the product documentation would be
* appreciated but is not required.
* 2. Altered source versions must be plainly marked as such, and must not be
* misrepresented as being the original software.
* 3. This notice may not be removed or altered from any source distribution.
*/
module.exports.Input = RayCastInput;
module.exports.Output = RayCastOutput;
module.exports.RayCastCallback = RayCastCallback;
/**
* Ray-cast input data. The ray extends from p1 to p1 + maxFraction * (p2 - p1).
*
* @prop {Vec2} p1
* @prop {Vec2} p2
*/
function RayCastInput() {
this.p1;
this.p2;
this.maxFraction;
};
/**
* Ray-cast output data. The ray hits at p1 + fraction * (p2 - p1), where p1 and
* p2 come from RayCastInput.
*
* @prop {Vec2} normal
*/
function RayCastOutput() {
this.normal;
this.fraction;
};