AirportGroundRadar.hxx

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/*
 * SPDX-FileName: AirportGroundRadar.hxx
 * SPDX-FileComment: Implementation of the FlightGear Ground radar
 * SPDX-FileCopyrightText: Copyright (C) 2023  Keith Paterson
 * SPDX-License-Identifier: GPL-2.0-or-later
 */
 
#pragma once
#include <simgear/math/SGGeod.hxx>
#include <simgear/structure/SGSharedPtr.hxx>
 
#include "AIModel/AIBase.hxx"
#include "Airports/airports_fwd.hxx"
#include "ATC/trafficcontrol.hxx"
#include "ATC/QuadTree.hxx"
 
using quadtree::QuadTree;
using FGTrafficRef = SGSharedPtr<FGTrafficRecord>;

class AirportGroundRadar: public SGReferenced {
public:
// for index
    static SGRect<double> getBox(FGTrafficRef aiObject) {
                /*
                if ((*aiObject).getCallsign() == "BA780") {
                  SG_LOG(SG_ATC, SG_ALERT, "getBox " << (*aiObject).getCallsign() << "(" << (*aiObject).getId() << ") " << aiObject << " " << (*aiObject).getPos().getLatitudeDeg() << " " << (*aiObject).getPos().getLongitudeDeg());
                }
                  */
                return SGRect<double>((*aiObject).getPos().getLatitudeDeg(),
                (*aiObject).getPos().getLongitudeDeg());
        };

    static bool equal(FGTrafficRef o, FGTrafficRef o2) {
//              if ((*o).getCallsign() == "BA780") {
                  //SG_LOG(SG_ATC, SG_DEBUG, (*o).getCallsign() << "(" << (*o).getId() << ")" << o << "/" << (*o2).getCallsign() << "(" << (*o2).getId() << ")" << o2);
//              }
                return (*o).getId() == (*o2).getId();
        };
 
private:
    const double QUERY_BOX_SIZE = 0.1;
        const int SEPARATION = 4;
        QuadTree<FGTrafficRecord, decltype(&getBox), decltype(&equal)> index;
        SGGeod min;
        FGAirportRef airport;
        int getSize(FGTrafficRef aiObject);
        bool blocking(FGTrafficRef aiObject, FGTrafficRef other);
public:
        AirportGroundRadar(SGGeod min, SGGeod max);
        AirportGroundRadar(FGAirportRef airport);
        ~AirportGroundRadar();
        bool add(FGTrafficRef aiObject);
        bool move(const SGRectd& newPos, FGTrafficRef aiObject);
        bool remove(FGTrafficRef aiObject);
        size_t size() const;
        bool isBlocked(FGTrafficRef aiObject);
        bool isBlockedForPushback(FGTrafficRef aiObject);
        const FGTrafficRef getBlockedBy(FGTrafficRef aiObject);
};