taoGroup.h

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/* Copyright (c) 2005 Arachi, Inc. and Stanford University.
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject
 * to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included
 * in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

#ifndef _taoGroup_h
#define _taoGroup_h

#include "taoTypes.h"
#include "deMath.h"

class taoDNode;
class taoNode;
class taoNodeRoot;

class taoGroup
{
public:
        taoGroup() : _id(-1), _isFixed(0), _rootList(NULL), _next(NULL) { _gravity.zero(); }
        ~taoGroup();

        void setID(deInt i) { _id = i; }
        const deInt getID() const { return _id; }

        void setIsFixed(int f) { _isFixed = f; }
        deInt getIsFixed() { return _isFixed; }

        deVector3* gravity() { return &_gravity; }

        void setNext(taoGroup* g) { _next = g; }
        taoGroup* getNext() { return _next; }

        taoNodeRoot* getRootList() { return _rootList; }
        void addRoot(taoNodeRoot* r, const deInt id);
        taoNodeRoot* removeRoot(const deInt id);
        taoNodeRoot* findRoot(const deInt id);

        void update(const deFloat time, const deFloat dt, const deInt n);
        void control(const deFloat time);
        void simulate(const deFloat dt);
        void updateTransformation();

        taoNodeRoot* unlinkFixed(taoNodeRoot* root, taoNode* node);
        taoNodeRoot* unlinkFree(taoNodeRoot* root, taoNode* node, deFloat inertia, deFloat damping);

        void sync(taoNodeRoot* root, deFloat time);

private:
        deInt _id;
        deInt _isFixed;
        deVector3 _gravity;
        taoNodeRoot* _rootList;
        taoGroup* _next;
};

#endif // _taoGroup_h

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