planck-js/lib/shape/BoxShape.js

2D JavaScript physics engine for cross-platform HTML5 game development

/*
 * Planck.js
 * The MIT License
 * Copyright (c) 2021 Erin Catto, Ali Shakiba
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

var _DEBUG = typeof DEBUG === 'undefined' ? false : DEBUG;
var _ASSERT = typeof ASSERT === 'undefined' ? false : ASSERT;

module.exports = BoxShape;

var common = require('../util/common');
var PolygonShape = require('./PolygonShape');

BoxShape._super = PolygonShape;
BoxShape.prototype = Object.create(BoxShape._super.prototype);

BoxShape.TYPE = 'polygon';

/**
 * A rectangle polygon which extend PolygonShape.
 */
function BoxShape(hx, hy, center, angle) {
  if (!(this instanceof BoxShape)) {
    return new BoxShape(hx, hy, center, angle);
  }

  BoxShape._super.call(this);

  this._setAsBox(hx, hy, center, angle);
}