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/*
* Copyright © 2011 Keith Packard <keithp@keithp.com>
* Copyright © 2012 Mike Beattie <mike@ethernal.org>
*
* 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; version 2 of the License.
*
* 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.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*/
package org.altusmetrum.AltosDroid;
import android.speech.tts.TextToSpeech;
import android.speech.tts.TextToSpeech.OnInitListener;
import org.altusmetrum.altoslib_3.*;
public class AltosVoice {
private TextToSpeech tts = null;
private boolean tts_enabled = false;
private IdleThread idle_thread = null;
private AltosState old_state = null;
public AltosVoice(AltosDroid a) {
tts = new TextToSpeech(a, new OnInitListener() {
public void onInit(int status) {
if (status == TextToSpeech.SUCCESS) tts_enabled = true;
if (tts_enabled) {
idle_thread = new IdleThread();
}
}
});
}
public void speak(String s) {
if (!tts_enabled) return;
tts.speak(s, TextToSpeech.QUEUE_ADD, null);
}
public void stop() {
if (tts != null) tts.shutdown();
if (idle_thread != null) {
idle_thread.interrupt();
idle_thread = null;
}
}
public void tell(AltosState state) {
if (!tts_enabled) return;
boolean spoke = false;
if (old_state == null || old_state.state != state.state) {
speak(state.state_name());
if ((old_state == null || old_state.state <= AltosLib.ao_flight_boost) &&
state.state > AltosLib.ao_flight_boost) {
speak(String.format("max speed: %d meters per second.", (int) (state.max_speed() + 0.5)));
spoke = true;
} else if ((old_state == null || old_state.state < AltosLib.ao_flight_drogue) &&
state.state >= AltosLib.ao_flight_drogue) {
speak(String.format("max height: %d meters.", (int) (state.max_height() + 0.5)));
spoke = true;
}
}
if (old_state == null || old_state.gps_ready != state.gps_ready) {
if (state.gps_ready) {
speak("GPS ready");
spoke = true;
} else if (old_state != null) {
speak("GPS lost");
spoke = true;
}
}
old_state = state;
idle_thread.notice(state, spoke);
}
class IdleThread extends Thread {
boolean started;
private AltosState state;
int reported_landing;
int report_interval;
long report_time;
public synchronized void report(boolean last) {
if (state == null)
return;
/* reset the landing count once we hear about a new flight */
if (state.state < AltosLib.ao_flight_drogue)
reported_landing = 0;
/* Shut up once the rocket is on the ground */
if (reported_landing > 2) {
return;
}
/* If the rocket isn't on the pad, then report height */
if (AltosLib.ao_flight_drogue <= state.state &&
state.state < AltosLib.ao_flight_landed &&
state.range >= 0)
{
speak(String.format("Height %d, bearing %s %d, elevation %d, range %d.\n",
(int) (state.height() + 0.5),
state.from_pad.bearing_words(
AltosGreatCircle.BEARING_VOICE),
(int) (state.from_pad.bearing + 0.5),
(int) (state.elevation + 0.5),
(int) (state.range + 0.5)));
} else if (state.state > AltosLib.ao_flight_pad) {
speak(String.format("%d meters", (int) (state.height() + 0.5)));
} else {
reported_landing = 0;
}
/* If the rocket is coming down, check to see if it has landed;
* either we've got a landed report or we haven't heard from it in
* a long time
*/
if (state.state >= AltosLib.ao_flight_drogue &&
(last ||
System.currentTimeMillis() - state.received_time >= 15000 ||
state.state == AltosLib.ao_flight_landed))
{
if (Math.abs(state.speed()) < 20 && state.height() < 100)
speak("rocket landed safely");
else
speak("rocket may have crashed");
if (state.from_pad != null)
speak(String.format("Bearing %d degrees, range %d meters.",
(int) (state.from_pad.bearing + 0.5),
(int) (state.from_pad.distance + 0.5)));
++reported_landing;
}
}
long now () {
return System.currentTimeMillis();
}
void set_report_time() {
report_time = now() + report_interval;
}
public void run () {
try {
for (;;) {
set_report_time();
for (;;) {
synchronized (this) {
long sleep_time = report_time - now();
if (sleep_time <= 0)
break;
wait(sleep_time);
}
}
report(false);
}
} catch (InterruptedException ie) {
}
}
public synchronized void notice(AltosState new_state, boolean spoken) {
AltosState old_state = state;
state = new_state;
if (!started && state.state > AltosLib.ao_flight_pad) {
started = true;
start();
}
if (state.state < AltosLib.ao_flight_drogue)
report_interval = 10000;
else
report_interval = 20000;
if (old_state != null && old_state.state != state.state) {
report_time = now();
this.notify();
} else if (spoken)
set_report_time();
}
public IdleThread() {
state = null;
reported_landing = 0;
report_interval = 10000;
}
}
}
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