inform user, when no audio player is found

[micropolis] / src / sim / w_sound.c

/* w_sound.c
 *
 * Micropolis, Unix Version.  This game was released for the Unix platform
 * in or about 1990 and has been modified for inclusion in the One Laptop
 * Per Child program.  Copyright (C) 1989 - 2007 Electronic Arts Inc.  If
 * you need assistance with this program, you may contact:
 *   http://wiki.laptop.org/go/Micropolis  or email  micropolis@laptop.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, either version 3 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, see <http://www.gnu.org/licenses/>.
 * 
 *             ADDITIONAL TERMS per GNU GPL Section 7
 * 
 * No trademark or publicity rights are granted.  This license does NOT
 * give you any right, title or interest in the trademark SimCity or any
 * other Electronic Arts trademark.  You may not distribute any
 * modification of this program using the trademark SimCity or claim any
 * affliation or association with Electronic Arts Inc. or its employees.
 * 
 * Any propagation or conveyance of this program must include this
 * copyright notice and these terms.
 * 
 * If you convey this program (or any modifications of it) and assume
 * contractual liability for the program to recipients of it, you agree
 * to indemnify Electronic Arts for any liability that those contractual
 * assumptions impose on Electronic Arts.
 * 
 * You may not misrepresent the origins of this program; modified
 * versions of the program must be marked as such and not identified as
 * the original program.
 * 
 * This disclaimer supplements the one included in the General Public
 * License.  TO THE FULLEST EXTENT PERMISSIBLE UNDER APPLICABLE LAW, THIS
 * PROGRAM IS PROVIDED TO YOU "AS IS," WITH ALL FAULTS, WITHOUT WARRANTY
 * OF ANY KIND, AND YOUR USE IS AT YOUR SOLE RISK.  THE ENTIRE RISK OF
 * SATISFACTORY QUALITY AND PERFORMANCE RESIDES WITH YOU.  ELECTRONIC ARTS
 * DISCLAIMS ANY AND ALL EXPRESS, IMPLIED OR STATUTORY WARRANTIES,
 * INCLUDING IMPLIED WARRANTIES OF MERCHANTABILITY, SATISFACTORY QUALITY,
 * FITNESS FOR A PARTICULAR PURPOSE, NONINFRINGEMENT OF THIRD PARTY
 * RIGHTS, AND WARRANTIES (IF ANY) ARISING FROM A COURSE OF DEALING,
 * USAGE, OR TRADE PRACTICE.  ELECTRONIC ARTS DOES NOT WARRANT AGAINST
 * INTERFERENCE WITH YOUR ENJOYMENT OF THE PROGRAM; THAT THE PROGRAM WILL
 * MEET YOUR REQUIREMENTS; THAT OPERATION OF THE PROGRAM WILL BE
 * UNINTERRUPTED OR ERROR-FREE, OR THAT THE PROGRAM WILL BE COMPATIBLE
 * WITH THIRD PARTY SOFTWARE OR THAT ANY ERRORS IN THE PROGRAM WILL BE
 * CORRECTED.  NO ORAL OR WRITTEN ADVICE PROVIDED BY ELECTRONIC ARTS OR
 * ANY AUTHORIZED REPRESENTATIVE SHALL CREATE A WARRANTY.  SOME
 * JURISDICTIONS DO NOT ALLOW THE EXCLUSION OF OR LIMITATIONS ON IMPLIED
 * WARRANTIES OR THE LIMITATIONS ON THE APPLICABLE STATUTORY RIGHTS OF A
 * CONSUMER, SO SOME OR ALL OF THE ABOVE EXCLUSIONS AND LIMITATIONS MAY
 * NOT APPLY TO YOU.
 */
#include "sim.h"


/* Sound routines */


int SoundInitialized = 0;
short Dozing;


InitializeSound()
{
  char cmd[256];

  SoundInitialized = 1;

  if (!UserSoundOn) return;

  Eval("UIInitializeSound");
}


ShutDownSound()
{
  if (SoundInitialized) {
    SoundInitialized = 0;
    Eval("UIShutDownSound");
  }
}


MakeSound(char *channel, char *id)
{
  char buf[256];

  if (!UserSoundOn) return;
  if (!SoundInitialized) InitializeSound();

  sprintf(buf, "UIMakeSound \"%s\" \"%s\"", channel, id);
  Eval(buf);
}


MakeSoundOn(SimView *view, char *channel, char *id)
{
  char buf[256];

  if (!UserSoundOn) return;
  if (!SoundInitialized) InitializeSound();

  sprintf(buf, "UIMakeSoundOn %s \"%s\" \"%s\"",
	  Tk_PathName(view->tkwin), channel, id);
  Eval(buf);
}


StartBulldozer(void)
{
  if (!UserSoundOn) return;
  if (!SoundInitialized) InitializeSound();
  if (!Dozing) {
    DoStartSound("edit", "1");
    Dozing = 1;
  }
}


StopBulldozer(void)
{
  if ((!UserSoundOn) || (!SoundInitialized)) return;
  DoStopSound("1");
  Dozing = 0;
}


/* comefrom: doKeyEvent */
SoundOff(void)
{
  if (!SoundInitialized) InitializeSound();
  Eval("UISoundOff");
  Dozing = 0;
}


DoStartSound(char *channel, char *id)
{
  char buf[256];

  sprintf(buf, "UIStartSound %s %s", channel, id);
  Eval(buf);
}


DoStopSound(char *id)
{
  char buf[256];

  sprintf(buf, "UIStopSound %s", id);
  Eval(buf);
}