assimp/include/aiAnim.h

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/*
---------------------------------------------------------------------------
Open Asset Import Library (ASSIMP)
---------------------------------------------------------------------------
Copyright (c) 2006-2008, ASSIMP Development 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 Development 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.
---------------------------------------------------------------------------
*/
/** @file Defines the data structures in which the imported animations
are returned. */
#ifndef AI_ANIM_H_INC
#define AI_ANIM_H_INC
#include "aiTypes.h"
#include "aiQuaternion.h"
#ifdef __cplusplus
extern "C" {
#endif
/** A time-value pair specifying a certain 3D vector for the given time. */
struct aiVectorKey
{
double mTime; ///< The time of this key
C_STRUCT aiVector3D mValue; ///< The value of this key
#ifdef __cplusplus
// time is not compared
bool operator == (const aiVectorKey& o) const
{return o.mValue == this->mValue;}
bool operator != (const aiVectorKey& o) const
{return o.mValue != this->mValue;}
// Only time is compared. This operator is defined
// for use with std::sort
bool operator < (const aiVectorKey& o) const
{return mTime < o.mTime;}
#endif
};
/** A time-value pair specifying a rotation for the given time. For joint
* animations the rotation is usually expressed using a quaternion.
*/
struct aiQuatKey
{
double mTime; ///< The time of this key
C_STRUCT aiQuaternion mValue; ///< The value of this key
#ifdef __cplusplus
// time is not compared
bool operator == (const aiQuatKey& o) const
{return o.mValue == this->mValue;}
bool operator != (const aiQuatKey& o) const
{return o.mValue != this->mValue;}
// Only time is compared. This operator is defined
// for use with std::sort
bool operator < (const aiQuatKey& o) const
{return mTime < o.mTime;}
#endif
};
enum aiAnimBehaviour
{
// --- Wert aus Node-Transformation wird <20>bernommen
aiAnimBehaviour_DEFAULT = 0x0,
// -- N<>chster Key wird verwendet
aiAnimBehaviour_CONSTANT = 0x1,
// -- N<>chste beiden Keys werden linear extrapoliert
aiAnimBehaviour_LINEAR = 0x2,
// -- Animation wird wiederholt
// Und das solange bis die Animationszeit (aiAnimation::mDuration)
// abgelaufen ist. Ist diese 0 l<>uft das ganze ewig.
aiAnimBehaviour_REPEAT = 0x3
};
/** Describes the animation of a single node. The name specifies the
* bone/node which is affected by this animation channel. The keyframes
* are given in three separate series of values, one each for position,
* rotation and scaling. The transformation matrix computed from these
* values replaces the node's original transformation matrix at a
* spefific time.
*/
struct aiNodeAnim
{
/** The name of the node affected by this animation. The node
* must exist anf it must be unique.
*/
C_STRUCT aiString mNodeName;
/** The number of position keys */
unsigned int mNumPositionKeys;
/** The position keys of this animation channel. Positions are
* specified as 3D vector. The array is mNumPositionKeys in size.
*
* If there are position keys, there will also be at least one
* scaling and one rotation key.
*/
C_STRUCT aiVectorKey* mPositionKeys;
/** The number of rotation keys */
unsigned int mNumRotationKeys;
/** The rotation keys of this animation channel. Rotations are
* given as quaternions, which are 4D vectors. The array is
* mNumRotationKeys in size.
*
* If there are rotation keys, there will also be at least one
* scaling and one position key.
*/
C_STRUCT aiQuatKey* mRotationKeys;
/** The number of scaling keys */
unsigned int mNumScalingKeys;
/** The scaling keys of this animation channel. Scalings are
* specified as 3D vector. The array is mNumScalingKeys in size.
*
* If there are scaling keys, there will also be at least one
* position and one rotation key.
*/
C_STRUCT aiVectorKey* mScalingKeys;
aiAnimBehaviour mPrePostState;
#ifdef __cplusplus
aiNodeAnim()
{
mNumPositionKeys = 0; mPositionKeys = NULL;
mNumRotationKeys= 0; mRotationKeys = NULL;
mNumScalingKeys = 0; mScalingKeys = NULL;
}
~aiNodeAnim()
{
if (mNumPositionKeys)
delete [] mPositionKeys;
if (mNumRotationKeys)
delete [] mRotationKeys;
if (mNumScalingKeys)
delete [] mScalingKeys;
}
#endif // __cplusplus
};
/** An animation consists of keyframe data for a number of nodes. For
* each node affected by the animation a separate series of data is given.
*/
struct aiAnimation
{
/** The name of the animation. If the modelling package this data was
* exported from does support only a single animation channel, this
* name is usually empty (length is zero).
*/
C_STRUCT aiString mName;
/** Duration of the animation in ticks.
*/
double mDuration;
/** Ticks per second. 0 if not specified in the imported file
*/
double mTicksPerSecond;
/** The number of bone animation channels. Each channel affects
* a single node.
*/
unsigned int mNumChannels;
/** The node animation channels. Each channel affects a single node.
* The array is mNumChannels in size.
*/
C_STRUCT aiNodeAnim** mChannels;
#ifdef __cplusplus
aiAnimation()
{
mDuration = 0;
mTicksPerSecond = 0;
mNumChannels = 0; mChannels = NULL;
}
~aiAnimation()
{
if (mNumChannels)
{
for( unsigned int a = 0; a < mNumChannels; a++)
delete mChannels[a];
delete [] mChannels;
}
}
#endif // __cplusplus
};
#ifdef __cplusplus
}
#endif
#endif // AI_ANIM_H_INC