--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/sound.c	Sat Dec 06 05:41:29 1997 +0000
@@ -0,0 +1,156 @@
+/*
+ * sound.c - Platform Independant Sound Support - July 1996
+ * Sujal M. Patel (smpatel@umiacs.umd.edu)
+ *
+ *
+ * Copyright (c) 1994-1996, Sujal M. Patel
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *      $Id: sound.c,v 1.1.1.1 1997/12/06 05:41:30 darius Exp $
+ */
+
+#include <stdio.h>
+#ifdef __STDC__
+#include <stdlib.h>
+#endif
+#include <unistd.h>
+#include <sys/time.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <sys/stat.h>
+#include "data.h"
+
+
+
+static int soundfd;
+static char audioOK = 1;
+static char sound_flags[20]; /* Sound Flag for sound 1-19 */
+
+
+
+void init_sound ()
+{
+  int i, pid, child,fd[2];
+  char *argv[4];
+  char filename[512];
+#ifdef linux
+  char *arch = "linux";
+#else
+#ifdef __FreeBSD__
+  char *arch = "freebsd";
+#else
+#ifdef __NetBSD__
+  char *arch = "netbsd";
+#else
+#ifdef sun
+  char *arch = "sun";
+#else
+#ifdef foo
+  char *arch = "foobar";
+#else
+  char *arch = "generic";
+#endif
+#endif
+#endif
+#endif
+#endif
+
+  signal(SIGCHLD, SIG_IGN);
+
+  if(unixSoundPath[0] == '?')  {
+      audioOK = 0;
+      return;
+  };
+
+  /*  Create a pipe, set the write end to close when we exec the sound server,
+      and set both (is the write end necessary?) ends to non-blocking   */
+  pipe(fd);
+  soundfd=fd[1];
+
+  if( !(child=fork()) )  {
+      close(fd[1]);
+      dup2(fd[0],STDIN_FILENO);
+      close(fd[0]);
+      sprintf (filename, "paradise.sndsrv.%s", arch);
+      argv[0] = filename;
+      argv[1] = unixSoundPath;
+      argv[2] = unixSoundDev;
+      argv[3] = NULL;
+      execvp(filename, argv);
+      fprintf (stderr, "Couldn't Execute Sound Server (paradise.sndsrv.%s)!\n", arch);
+      exit (0);
+  };
+  close(fd[0]);
+
+  sleep(1);
+
+  if (kill(child, 0))  {
+      audioOK = 0;  
+      close(soundfd);
+  };
+
+  for (i = 0; i < 19; i++) sound_flags[i] = 0;
+} 
+
+void play_sound (k)
+int k;
+{
+  char c;
+
+  c = k;
+  if ((playSounds) && (audioOK)) write (soundfd, &c, sizeof (c));
+}
+
+
+
+void maybe_play_sound (k)
+int k;
+{
+  char c;
+
+  if (sound_flags[k] & 1) return;
+
+  sound_flags[k] |= 1;
+
+  c = (unsigned char)(k);
+  if ((playSounds) && (audioOK)) write (soundfd, &c, sizeof (c));
+}
+
+
+
+void sound_completed (k)
+int k;
+{
+  sound_flags[k] &= ~1;
+}
+
+
+
+void kill_sound ()
+{ 
+  char c;
+
+  c = -1;               
+  if ((playSounds) && (audioOK)) write (soundfd, &c, sizeof (c));
+}