mirror of https://github.com/axmolengine/axmol.git
60 lines
1.9 KiB
C
60 lines
1.9 KiB
C
/*
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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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#include "kazmath/utility.h"
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/**
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* Returns the square of s (e.g. s*s)
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*/
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kmScalar kmSQR(kmScalar s) {
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return s*s;
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}
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/**
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* Returns degrees as radians.
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*/
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kmScalar kmDegreesToRadians(kmScalar degrees) {
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return degrees * kmPIOver180;
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}
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/**
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* Returns radians as degrees
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*/
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kmScalar kmRadiansToDegrees(kmScalar radians) {
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return radians * kmPIUnder180;
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}
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kmScalar kmMin(kmScalar lhs, kmScalar rhs) {
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return (lhs < rhs)? lhs : rhs;
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}
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kmScalar kmMax(kmScalar lhs, kmScalar rhs) {
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return (lhs > rhs)? lhs : rhs;
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}
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kmBool kmAlmostEqual(kmScalar lhs, kmScalar rhs) {
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return (lhs + kmEpsilon > rhs && lhs - kmEpsilon < rhs);
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}
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