1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 'use strict'; 6 7 base.require('base.rect'); 8 9 base.exportTo('cc', function() { 10 function RegionFromArray(array) { 11 if (array.length % 4 != 0) 12 throw new Error('Array must consist be a multiple of 4 in length'); 13 14 var r = new Region(); 15 for (var i = 0; i < array.length; i += 4) { 16 r.rects.push(base.Rect.FromXYWH(array[i], array[i + 1], 17 array[i + 2], array[i + 3])); 18 } 19 return r; 20 } 21 22 /** 23 * @constructor 24 */ 25 function Region() { 26 this.rects = []; 27 } 28 29 Region.prototype = { 30 __proto__: Region.prototype, 31 32 rectIntersects: function(r) { 33 for (var i = 0; i < this.rects.length; i++) { 34 if (this.rects[i].intersects(r)) 35 return true; 36 } 37 return false; 38 } 39 }; 40 41 return { 42 Region: Region, 43 RegionFromArray: RegionFromArray 44 }; 45 }); 46
