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flightgear/src/ATC/ATC.cxx
2003-10-06 22:40:37 +00:00

155 lines
4.2 KiB
C++

// Implementation of FGATC - ATC subsystem base class.
//
// Written by David Luff, started February 2002.
//
// Copyright (C) 2002 David C Luff - david.luff@nottingham.ac.uk
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License as
// published by the Free Software Foundation; either version 2 of the
// License, or (at your option) any later version.
//
// This program 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
// General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <simgear/sound/soundmgr.hxx>
#include <Main/fg_props.hxx>
#include "ATC.hxx"
#include "ATCdisplay.hxx"
FGATC::FGATC() {
freqClear = true;
}
FGATC::~FGATC() {
}
// Derived classes wishing to use the response counter should call this from their own Update(...).
void FGATC::Update(double dt) {
if(responseReqd) {
if(responseCounter >= responseTime) {
responseReqd = false;
respond = true;
} else {
responseCounter += dt;
}
}
}
void FGATC::SetResponseReqd(string rid) {
responseReqd = true;
respond = false; // TODO - this ignores the fact that more than one plane could call this before response
// Shouldn't happen with AI only, but user could confuse things??
responseID = rid;
responseCounter = 0.0;
responseTime = 2.5; // TODO - randomize this slightly.
}
void FGATC::AddPlane(string pid) {
}
int FGATC::RemovePlane() {
return 0;
}
void FGATC::SetDisplay() {
}
void FGATC::SetNoDisplay() {
}
atc_type FGATC::GetType() {
return INVALID;
}
void FGATC::SetData(ATCData* d) {
lon = d->lon;
lat = d->lat;
elev = d->elev;
x = d->x;
y = d->y;
z = d->z;
range = d->range;
ident = d->ident;
name = d->name;
freq = d->freq;
}
// Render a transmission
// Outputs the transmission either on screen or as audio depending on user preference
// The refname is a string to identify this sample to the sound manager
// The repeating flag indicates whether the message should be repeated continuously or played once.
void FGATC::Render(string msg, string refname, bool repeating) {
#ifdef ENABLE_AUDIO_SUPPORT
voice = (voiceOK && fgGetBool("/sim/sound/audible")
&& fgGetBool("/sim/sound/voice"));
if(voice) {
int len;
unsigned char* buf = vPtr->WriteMessage((char*)msg.c_str(), len, voice);
if(voice) {
SGSimpleSound* simple = new SGSimpleSound(buf, len);
// TODO - at the moment the volume is always set off comm1
// and can't be changed after the transmission has started.
simple->set_volume(5.0 * fgGetDouble("/radios/comm[0]/volume"));
globals->get_soundmgr()->add(simple, refname);
if(repeating) {
globals->get_soundmgr()->play_looped(refname);
} else {
globals->get_soundmgr()->play_once(refname);
}
}
delete[] buf;
}
#endif // ENABLE_AUDIO_SUPPORT
if(!voice) {
// first rip the underscores and the pause hints out of the string - these are for the convienience of the voice parser
for(unsigned int i = 0; i < msg.length(); ++i) {
if((msg.substr(i,1) == "_") || (msg.substr(i,1) == "/")) {
msg[i] = ' ';
}
}
globals->get_ATC_display()->RegisterRepeatingMessage(msg);
}
playing = true;
}
// Cease rendering a transmission.
void FGATC::NoRender(string refname) {
if(playing) {
if(voice) {
#ifdef ENABLE_AUDIO_SUPPORT
globals->get_soundmgr()->stop(refname);
globals->get_soundmgr()->remove(refname);
#endif
} else {
globals->get_ATC_display()->CancelRepeatingMessage();
}
playing = false;
}
}
ostream& operator << (ostream& os, atc_type atc) {
switch(atc) {
case(INVALID): return(os << "INVALID");
case(ATIS): return(os << "ATIS");
case(GROUND): return(os << "GROUND");
case(TOWER): return(os << "TOWER");
case(APPROACH): return(os << "APPROACH");
case(DEPARTURE): return(os << "DEPARTURE");
case(ENROUTE): return(os << "ENROUTE");
}
return(os << "ERROR - Unknown switch in atc_type operator << ");
}