BL_ArmatureConstraint.h

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/*
 * ***** BEGIN GPL LICENSE BLOCK *****
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
 * All rights reserved.
 *
 * The Original Code is: all of this file.
 *
 * Contributor(s): none yet.
 *
 * ***** END GPL LICENSE BLOCK *****
 */

#ifndef __BL_ARMATURECONSTRAINT
#define __BL_ARMATURECONSTRAINT

#include "DNA_constraint_types.h"
#include "CTR_HashedPtr.h"
#include "CTR_Map.h"
#include "PyObjectPlus.h"

class SCA_IObject;
class KX_GameObject;
class BL_ArmatureObject;
struct bConstraint;
struct bPoseChannel;
struct Object;
struct bPose;

class BL_ArmatureConstraint : public PyObjectPlus
{
    Py_Header

private:
    struct bConstraint* m_constraint;
    struct bPoseChannel* m_posechannel;
    class BL_ArmatureObject* m_armature;
    char m_name[64];
    KX_GameObject*  m_target;
    KX_GameObject*  m_subtarget;
    struct Object*  m_blendtarget;
    struct Object*  m_blendsubtarget;
    float       m_blendmat[4][4];
    float       m_blendsubmat[4][4];
    struct bPose*   m_pose;
    struct bPose*   m_subpose;

public:
    BL_ArmatureConstraint(class BL_ArmatureObject *armature, 
                        struct bPoseChannel *posechannel, 
                        struct bConstraint *constraint, 
                        KX_GameObject* target,
                        KX_GameObject* subtarget);
    virtual ~BL_ArmatureConstraint();

    BL_ArmatureConstraint* GetReplica() const;
    void ReParent(BL_ArmatureObject* armature);
    void Relink(CTR_Map<CTR_HashedPtr, void*> *map);
    bool UnlinkObject(SCA_IObject* clientobj);

    void UpdateTarget();
    void RestoreTarget();

    bool Match(const char* posechannel, const char* constraint);
    const char* GetName() { return m_name; }

    void SetConstraintFlag(int flag)
    {
        if (m_constraint)
            m_constraint->flag |= flag;
    }
    void ClrConstraintFlag(int flag)
    {
        if (m_constraint)
            m_constraint->flag &= ~flag;
    }
    void SetWeight(float weight)
    {
        if (m_constraint && m_constraint->type == CONSTRAINT_TYPE_KINEMATIC && m_constraint->data) {
            bKinematicConstraint* con = (bKinematicConstraint*)m_constraint->data;
            con->weight = weight;
        }
    }
    void SetTarget(KX_GameObject* target);
    void SetSubtarget(KX_GameObject* subtarget);

#ifdef WITH_PYTHON

    // Python access
    virtual PyObject* py_repr(void);

    static PyObject* py_attr_getattr(void *self, const struct KX_PYATTRIBUTE_DEF *attrdef);
    static int py_attr_setattr(void *self, const struct KX_PYATTRIBUTE_DEF *attrdef, PyObject *value);
#endif // WITH_PYTHON
};

#endif //__BL_ARMATURECONSTRAINT