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55 lines
2.1 KiB
JavaScript
Vendored
55 lines
2.1 KiB
JavaScript
Vendored
/**
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Copyright (c) 2008-2010 Ricardo Quesada
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Copyright (c) 2011-2012 cocos2d-x.org
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Copyright (c) 2013-2014 Chukong Technologies Inc.
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Copyright (c) 2008, Luke Benstead.
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All rights reserved.
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Redistribution and use in source and binary forms, with or without modification,
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are permitted provided that the following conditions are met:
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Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/**
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* <p>The main namespace of Cocos2d-html5's math library, <br/>
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* all math core classes, functions, properties and constants are defined in this namespace</p>
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* @namespace
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* @name cc.math
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*/
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cc.math = cc.math || {};
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//cc.kmPIOver180 = 0.017453; please use cc.RAD
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//cc.kmPIUnder180 = 57.295779; please use cc.DEG
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cc.math.EPSILON = 1.0 / 64.0; //cc.kmEpsilon
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/**
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* Returns the square of s (e.g. s*s)
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* @param {Number} s
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*/
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cc.math.square = function(s){
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return s*s;
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};
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cc.math.almostEqual = function(lhs,rhs){
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return (lhs + cc.math.EPSILON > rhs && lhs - cc.math.EPSILON < rhs);
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};
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