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Bone.h
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Bone.h
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/******************************************************************************
* Spine Runtimes Software License v2.5
*
* Copyright (c) 2013-2016, Esoteric Software
* All rights reserved.
*
* You are granted a perpetual, non-exclusive, non-sublicensable, and
* non-transferable license to use, install, execute, and perform the Spine
* Runtimes software and derivative works solely for personal or internal
* use. Without the written permission of Esoteric Software (see Section 2 of
* the Spine Software License Agreement), you may not (a) modify, translate,
* adapt, or develop new applications using the Spine Runtimes or otherwise
* create derivative works or improvements of the Spine Runtimes or (b) remove,
* delete, alter, or obscure any trademarks or any copyright, trademark, patent,
* or other intellectual property or proprietary rights notices on or in the
* Software, including any copy thereof. Redistributions in binary or source
* form must include this license and terms.
*
* THIS SOFTWARE IS PROVIDED BY ESOTERIC SOFTWARE "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 ESOTERIC SOFTWARE BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, BUSINESS INTERRUPTION, OR LOSS OF
* USE, DATA, OR PROFITS) 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.
*****************************************************************************/
#ifndef Spine_Bone_h
#define Spine_Bone_h
#include <spine/Updatable.h>
#include <spine/SpineObject.h>
#include <spine/Vector.h>
namespace spine {
class BoneData;
class Skeleton;
/// Stores a bone's current pose.
///
/// A bone has a local transform which is used to compute its world transform. A bone also has an applied transform, which is a
/// local transform that can be applied to compute the world transform. The local transform and applied transform may differ if a
/// constraint or application code modifies the world transform after it was computed from the local transform.
class Bone : public Updatable {
friend class AnimationState;
friend class RotateTimeline;
friend class IkConstraint;
friend class TransformConstraint;
friend class VertexAttachment;
friend class PathConstraint;
friend class Skeleton;
friend class RegionAttachment;
friend class PointAttachment;
friend class ScaleTimeline;
friend class ShearTimeline;
friend class TranslateTimeline;
RTTI_DECL
public:
static void setYDown(bool inValue);
static bool isYDown();
/// @param parent May be NULL.
Bone(BoneData &data, Skeleton &skeleton, Bone *parent = NULL);
/// Same as updateWorldTransform. This method exists for Bone to implement Spine::Updatable.
virtual void update();
/// Computes the world transform using the parent bone and this bone's local transform.
void updateWorldTransform();
/// Computes the world transform using the parent bone and the specified local transform.
void updateWorldTransform(float x, float y, float rotation, float scaleX, float scaleY, float shearX, float shearY);
void setToSetupPose();
void worldToLocal(float worldX, float worldY, float &outLocalX, float &outLocalY);
void localToWorld(float localX, float localY, float &outWorldX, float &outWorldY);
float worldToLocalRotation(float worldRotation);
float localToWorldRotation(float localRotation);
///
/// Rotates the world transform the specified amount and sets isAppliedValid to false.
///
/// @param degrees Degrees.
void rotateWorld(float degrees);
float getWorldToLocalRotationX();
float getWorldToLocalRotationY();
BoneData &getData();
Skeleton &getSkeleton();
Bone *getParent();
Vector<Bone *> &getChildren();
/// The local X translation.
float getX();
void setX(float inValue);
/// The local Y translation.
float getY();
void setY(float inValue);
/// The local rotation.
float getRotation();
void setRotation(float inValue);
/// The local scaleX.
float getScaleX();
void setScaleX(float inValue);
/// The local scaleY.
float getScaleY();
void setScaleY(float inValue);
/// The local shearX.
float getShearX();
void setShearX(float inValue);
/// The local shearY.
float getShearY();
void setShearY(float inValue);
/// The rotation, as calculated by any constraints.
float getAppliedRotation();
void setAppliedRotation(float inValue);
/// The applied local x translation.
float getAX();
void setAX(float inValue);
/// The applied local y translation.
float getAY();
void setAY(float inValue);
/// The applied local scaleX.
float getAScaleX();
void setAScaleX(float inValue);
/// The applied local scaleY.
float getAScaleY();
void setAScaleY(float inValue);
/// The applied local shearX.
float getAShearX();
void setAShearX(float inValue);
/// The applied local shearY.
float getAShearY();
void setAShearY(float inValue);
float getA();
void setA(float inValue);
float getB();
void setB(float inValue);
float getC();
void setC(float inValue);
float getD();
void setD(float inValue);
float getWorldX();
void setWorldX(float inValue);
float getWorldY();
void setWorldY(float inValue);
float getWorldRotationX();
float getWorldRotationY();
/// Returns the magnitide (always positive) of the world scale X.
float getWorldScaleX();
/// Returns the magnitide (always positive) of the world scale Y.
float getWorldScaleY();
bool isAppliedValid();
void setAppliedValid(bool valid);
private:
static bool yDown;
BoneData &_data;
Skeleton &_skeleton;
Bone *_parent;
Vector<Bone *> _children;
float _x, _y, _rotation, _scaleX, _scaleY, _shearX, _shearY;
float _ax, _ay, _arotation, _ascaleX, _ascaleY, _ashearX, _ashearY;
bool _appliedValid;
float _a, _b, _worldX;
float _c, _d, _worldY;
bool _sorted;
/// Computes the individual applied transform values from the world transform. This can be useful to perform processing using
/// the applied transform after the world transform has been modified directly (eg, by a constraint)..
///
/// Some information is ambiguous in the world transform, such as -1,-1 scale versus 180 rotation.
void updateAppliedTransform();
};
}
#endif /* Spine_Bone_h */