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-/*
----------------------------------------------------------------------------
-Open Asset Import Library (assimp)
----------------------------------------------------------------------------
-
-Copyright (c) 2006-2022, assimp team
-
-All rights reserved.
-
-Redistribution and use of this software in source and binary forms,
-with or without modification, are permitted provided that the following
-conditions are met:
-
-* Redistributions of source code must retain the above
- copyright notice, this list of conditions and the
- following disclaimer.
-
-* Redistributions in binary form must reproduce the above
- copyright notice, this list of conditions and the
- following disclaimer in the documentation and/or other
- materials provided with the distribution.
-
-* Neither the name of the assimp team, nor the names of its
- contributors may be used to endorse or promote products
- derived from this software without specific prior
- written permission of the assimp team.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
----------------------------------------------------------------------------
-*/
-
-#pragma once
-#ifndef AV_ANIMEVALUATOR_H_INCLUDED
-#define AV_ANIMEVALUATOR_H_INCLUDED
-
-/** Calculates a pose for a given time of an animation */
-
-#include <tuple>
-#include <vector>
-#include <assimp/matrix4x4.h>
-
-struct aiAnimation;
-
-namespace AssimpView {
-
-/**
- * @brief Calculates transformations for a given timestamp from a set of animation tracks. Not directly useful,
- * better use the AnimPlayer class.
- */
-class AnimEvaluator {
-public:
- /// @brief Constructor on a given animation. The animation is fixed throughout the lifetime of
- /// the object.
- /// @param pAnim The animation to calculate poses for. Ownership of the animation object stays
- /// at the caller, the evaluator just keeps a reference to it as long as it persists.
- AnimEvaluator(const aiAnimation *pAnim);
-
- /// @brief The class destructor.
- ~AnimEvaluator();
-
- /// @brief Evaluates the animation tracks for a given time stamp.
- /// The calculated pose can be retrieved as an array of transformation
- /// matrices afterwards by calling GetTransformations().
- /// @param pTime The time for which you want to evaluate the animation, in seconds.
- /// Will be mapped into the animation cycle, so it can get an arbitrary
- /// value. Best use with ever-increasing time stamps.
- void Evaluate(double pTime);
-
- /// @brief Returns the transform matrices calculated at the last Evaluate() call.
- /// The array matches the mChannels array of the aiAnimation.
- const std::vector<aiMatrix4x4> &GetTransformations() const { return mTransforms; }
-
-private:
- const aiAnimation *mAnim;
- double mLastTime;
- std::vector<std::tuple<unsigned int, unsigned int, unsigned int>> mLastPositions;
- std::vector<aiMatrix4x4> mTransforms;
-};
-
-} // end of namespace AssimpView
-
-#endif // AV_ANIMEVALUATOR_H_INCLUDED