CPathUpdater.h

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//    Copyright (C) 2004-2013 Dylan Blair
//
//    email: dblair@alumni.cs.utexas.edu
//
//    This library is free software; you can redistribute it and/or
//    modify it under the terms of the GNU Lesser General Public
//    License as published by the Free Software Foundation; either
//    version 2.1 of the License, or (at your option) any later version.
//
//    This library 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
//    Lesser General Public License for more details.
//
//    You should have received a copy of the GNU Lesser General Public
//    License along with this library; if not, write to the Free Software
//    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

#ifndef CPATH_UPDATER_H
#define CPATH_UPDATER_H

#include "IMotionUpdater.h"
#include "ICollisionListener.h"
#include "../Math_LIB/MInterpolator.h"
#include "../Math_LIB/MPath.h"

namespace OpenSkyNet {
    namespace Core {
        class CORE_DLL PathUpdater : public MotionUpdater, public CollisionListener {
        protected:
            virtual bool addObject(Object* obj_, Updater::OBJECT_PRIORITY prio_=Updater::OBJ_1, bool isOneShot_=false);
        public:
            struct PathInfo : public MotionUpdater::MotionInfo {
                const Math::Path* _path;
                Math::Interpolator _pathInterpolator;
                float _speed;
                bool _usePercentOfPoints;
                bool _lookAtEnd;
                float _lookPercentAhead;
                Math::Point<> _drivPos;

                PathInfo(Updater::OBJECT_PRIORITY prio_=Updater::OBJ_DISABLED, bool isOneShot_=false) : 
                    MotionUpdater::MotionInfo(prio_,isOneShot_), _path(0), 
                    _pathInterpolator(Math::Interpolator(Math::Interpolator::END)), 
                    _speed(0), _usePercentOfPoints(false), _lookAtEnd(true), 
                    _lookPercentAhead(0.0f) {}
            };

            PathUpdater() : MotionUpdater(Updater::PATH, "PATH", Updater::UPD_5, 0.033f) {}
            virtual ~PathUpdater() {}

            virtual bool update(float dt_);

            virtual void setNonCollidingData(Object* obj_);
            virtual void handleNonCollidingTransformApplied(Object* obj_);

            void setPath(Object* obj_, const Math::Path* path_, const float& speed_, 
                Math::Interpolator::TYPE interpolatorType_=Math::Interpolator::END, float interpolatorValue_=0.0f, 
                bool lookAtEnd_=false, float lookPercentAhead_=0.0f, bool usePercentOfPoints_=false);

            inline const Math::Interpolator& getInterpolator(Object* obj_) { return static_cast<PathInfo*>(_objMap[obj_])->_pathInterpolator; }

            inline const Math::Point<>& getInitialDriverPos(Object* obj_) { return static_cast<PathInfo*>(_objMap[obj_])->_drivPos; }

            bool isPathAtEnd(Object* obj_);
        };
    }
}

#endif //CPATH_UPDATER_H