64 lines
2.0 KiB
C++
64 lines
2.0 KiB
C++
/****************************************************************************
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Copyright (c) 2011-2013,WebJet Business Division,CYOU
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http://www.genesis-3d.com.cn
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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****************************************************************************/
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#pragma once
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#include "math/curve.h"
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namespace Animations
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{
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inline float Loop(float time, float startTime, float endTime)
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{
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return ( ( time - startTime ) - floorf(time / endTime - startTime) * (endTime - startTime) ) + startTime;
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}
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inline float Mirror(float time, float startTime, float endTime)
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{
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float timeLength = endTime - startTime;
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float timeLength2 = timeLength * 2.0f;
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float scale = time / timeLength2;
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float relative = scale - floorf(scale);
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float relative2 = (relative > 0.5f) ? (1 - relative) * 2.0f : relative * 2.0f;
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float wrap_time = relative2 * timeLength + startTime;
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return wrap_time;
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}
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inline float ClampWeightRange(float weight)
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{
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if(weight < 0.0f)
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{
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return 0.0f;
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}
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else if(weight > 1.0f)
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{
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return 1.0f;
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}
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else
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{
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return weight;
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}
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}
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} |