80 lines
3.3 KiB
C++
80 lines
3.3 KiB
C++
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// FGGround - a class to provide ground control at larger airports.
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//
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// Written by David Luff, started March 2002.
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//
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// Copyright (C) 2002 David C. Luff - david.luff@nottingham.ac.uk
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License as
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// published by the Free Software Foundation; either version 2 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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#include "ground.hxx"
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void FGGround::Init() {
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display = false;
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}
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void FGGround::Update() {
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// Each time step, what do we need to do?
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// We need to go through the list of outstanding requests and acknowedgements
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// and process at least one of them.
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// We need to go through the list of planes under our control and check if
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// any need to be addressed.
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// We need to check for planes not under our control coming within our
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// control area and address if necessary.
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// Lets take the example of a plane which has just contacted ground
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// following landing - presumably requesting where to go?
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// First we need to establish the position of the plane within the logical network.
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// Next we need to decide where its going.
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}
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void FGGround::NewArrival(plane_rec plane) {
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// What are we going to do here?
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// We need to start a new ground_rec and add the plane_rec to it
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// We need to decide what gate we are going to clear it to.
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// Then we need to add clearing it to that gate to the pending transmissions queue? - or simply transmit?
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// Probably simply transmit for now and think about a transmission queue later if we need one.
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// We might need one though in order to add a little delay for response time.
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ground_rec* g = new ground_rec;
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g->plane_rec = plane;
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g->current_pos = ConvertWGS84ToXY(plane.pos);
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g->node = GetNode(g->current_pos); // TODO - might need to sort out node/arc here
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AssignGate(g);
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g->cleared = false;
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ground_traffic.push_back(g);
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NextClearance(g);
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}
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void FGGround::NewContact(plane_rec plane) {
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// This is a bit of a convienience function at the moment and is likely to change.
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if(at a gate or apron)
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NewDeparture(plane);
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else
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NewArrival(plane);
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}
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void FGGround::NextClearance(ground_rec &g) {
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// Need to work out where we can clear g to.
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// Assume the pilot doesn't need progressive instructions
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// We *should* already have a gate or holding point assigned by the time we get here
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// but it wouldn't do any harm to check.
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// For now though we will hardwire it to clear to the final destination.
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}
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void FGGround::AssignGate(ground_rec &g) {
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// We'll cheat for now - since we only have the user's aircraft and a couple of airports implemented
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// we'll hardwire the gate!
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// In the long run the logic of which gate or area to send the plane to could be somewhat non-trivial.
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}
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