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/**
* @file llpathfindingnavmeshzone.h
* @author William Todd Stinson
* @brief A class for representing the zone of navmeshes containing and possible surrounding the current region.
*
* $LicenseInfo:firstyear=2002&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2010, Linden Research, Inc.
*
* 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;
* version 2.1 of the License only.
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
#ifndef LL_LLPATHFINDINGNAVMESHZONE_H
#define LL_LLPATHFINDINGNAVMESHZONE_H
#include "llsd.h"
#include "lluuid.h"
#include "llpathfindingnavmesh.h"
#include <vector>
#include <boost/shared_ptr.hpp>
#include <boost/function.hpp>
#include <boost/signals2.hpp>
//#define XXX_STINSON_DEBUG_NAVMESH_ZONE
class LLPathfindingNavMeshZone
{
public:
typedef enum {
kNavMeshZoneRequestUnknown,
kNavMeshZoneRequestNeedsUpdate,
kNavMeshZoneRequestStarted,
kNavMeshZoneRequestCompleted,
kNavMeshZoneRequestNotEnabled,
kNavMeshZoneRequestError
} ENavMeshZoneRequestStatus;
typedef boost::function<void (ENavMeshZoneRequestStatus)> navmesh_zone_callback_t;
typedef boost::signals2::signal<void (ENavMeshZoneRequestStatus)> navmesh_zone_signal_t;
typedef boost::signals2::connection navmesh_zone_slot_t;
LLPathfindingNavMeshZone();
virtual ~LLPathfindingNavMeshZone();
navmesh_zone_slot_t registerNavMeshZoneListener(navmesh_zone_callback_t pNavMeshZoneCallback);
void initialize();
void enable();
void disable();
void refresh();
protected:
private:
typedef boost::function<void (void)> navmesh_location_callback_t;
class NavMeshLocation
{
public:
NavMeshLocation(S32 pDirection, navmesh_location_callback_t pLocationCallback);
virtual ~NavMeshLocation();
void enable();
void refresh();
void disable();
LLPathfindingNavMesh::ENavMeshRequestStatus getRequestStatus() const;
#ifdef XXX_STINSON_DEBUG_NAVMESH_ZONE
const LLUUID &getRegionUUID() const {return mRegionUUID;};
S32 getDirection() const {return mDirection;};
#endif // XXX_STINSON_DEBUG_NAVMESH_ZONE
protected:
private:
void handleNavMesh(LLPathfindingNavMesh::ENavMeshRequestStatus pNavMeshRequestStatus, const LLUUID &pRegionUUID, U32 pNavMeshVersion, const LLSD::Binary &pNavMeshData);
void clear();
LLViewerRegion *getRegion() const;
S32 mDirection;
LLUUID mRegionUUID;
bool mHasNavMesh;
U32 mNavMeshVersion;
navmesh_location_callback_t mLocationCallback;
LLPathfindingNavMesh::ENavMeshRequestStatus mRequestStatus;
LLPathfindingNavMesh::navmesh_slot_t mNavMeshSlot;
};
typedef boost::shared_ptr<NavMeshLocation> NavMeshLocationPtr;
typedef std::vector<NavMeshLocationPtr> NavMeshLocationPtrs;
void handleNavMeshLocation();
void updateStatus();
NavMeshLocationPtrs mNavMeshLocationPtrs;
navmesh_zone_signal_t mNavMeshZoneSignal;
};
#endif // LL_LLPATHFINDINGNAVMESHZONE_H
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