Refactor to allow sequencing events on drones

Changes:

    * Consolidate xas_drone_vox into xas_drone

    * Refactor xas_drone to no longer be centered around spatial
      objects for its vocalisations

    * Add a two-tone beep system to drones to allow beeping according
      to mood

    * Consolidate head-oriented sound effects into a single spatial
      object within drones

    * Implement ability to add a mixer to a spatial scene

    * Allow setting spatial coordinates for objects generically; remove
      code from src/spatial.c for doing this specifically

1 files changed, 12 insertions, 22 deletions

diff --git a/examples/pod.c b/examples/pod.c
index 156968c..7fd4011 100644
--- a/examples/pod.c
+++ b/examples/pod.c
@@ -14,7 +14,7 @@
 #include <xas/drone.h>
 #include <xas/seq.h>
 
-static int drone_id_say(xas_drone_vox *vox,
+static int drone_id_say(xas_drone *drone,
                         const char *drone_id) {
     const char *numbers[10] = {
         "zero", "one", "two",   "three", "four",
@@ -28,23 +28,23 @@ static int drone_id_say(xas_drone_vox *vox,
         char c = drone_id[i];
 
         if (c == '-') {
-            if (xas_drone_vox_say(vox, " dash") < 0) {
+            if (xas_drone_vox_say(drone, " dash") < 0) {
                 goto error_drone_vox_say;
             }
         } else if (c >= 'a' && c <= 'z') {
             c -= 0x20;
 
-            if (xas_drone_vox_sayf(vox, " %c", c) < 0) {
+            if (xas_drone_vox_sayf(drone, " %c", c) < 0) {
                 goto error_drone_vox_say;
             }
         } else if (c >= 'A' && c <= 'Z') {
-            if (xas_drone_vox_sayf(vox, " %c", c) < 0) {
+            if (xas_drone_vox_sayf(drone, " %c", c) < 0) {
                 goto error_drone_vox_say;
             }
         } else if (c >= '0' && c <= '9') {
             int n = (int)(c - '0');
 
-            if (xas_drone_vox_sayf(vox, " %s", numbers[n]) < 0) {
+            if (xas_drone_vox_sayf(drone, " %s", numbers[n]) < 0) {
                 goto error_drone_vox_say;
             }
         }
@@ -56,7 +56,7 @@ error_drone_vox_say:
     return -1;
 }
 
-static int drone_part_say(xas_drone_vox *vox, const char *drone_id) {
+static int drone_part_say(xas_drone *drone, const char *drone_id) {
     const char *id_lines[2] = {
         " is obedient.\n",
         " is empty.\n"
@@ -70,16 +70,16 @@ static int drone_part_say(xas_drone_vox *vox, const char *drone_id) {
     int i;
 
     for (i=0; i<2; i++) {
-        if (drone_id_say(vox, drone_id) < 0) {
+        if (drone_id_say(drone, drone_id) < 0) {
             goto error_say;
         }
 
-        if (xas_drone_vox_say(vox, id_lines[i]) < 0) {
+        if (xas_drone_vox_say(drone, id_lines[i]) < 0) {
             goto error_say;
         }
     }
 
-    if (xas_drone_vox_say(vox, speech) < 0) {
+    if (xas_drone_vox_say(drone, speech) < 0) {
         goto error_say;
     }
 
@@ -145,8 +145,6 @@ int main(int argc, char **argv) {
     xas_drone *drone,
                 *nurse;
 
-    xas_drone_vox *drone_vox;
-
     xas_drone_chamber *chamber;
 
     struct timeval cur = { 0, 0 },
@@ -196,17 +194,13 @@ int main(int argc, char **argv) {
         goto error_drone_chamber_new;
     }
 
-    if ((drone_vox = xas_drone_vox_new(drone)) == NULL) {
-        goto error_drone_vox_new;
-    }
-
-    xas_drone_vox_set_speed(drone_vox, 0.75f);
+    xas_drone_vox_set_speed(drone, 0.75f);
 
-    if (drone_part_say(drone_vox, argv[1]) < 0) {
+    if (drone_part_say(drone, argv[1]) < 0) {
         goto error_drone_part_say;
     }
 
-    if (xas_drone_vox_save(drone_vox, 0) < 0) {
+    if (xas_drone_vox_save(drone, 0) < 0) {
         goto error_drone_vox_save;
     }
 
@@ -271,7 +265,6 @@ int main(int argc, char **argv) {
 
     xas_seq_play(seq, wave);
 
-    xas_drone_vox_destroy(drone_vox);
     xas_drone_chamber_destroy(chamber);
     xas_drone_destroy(nurse);
     xas_drone_destroy(drone);
@@ -285,9 +278,6 @@ error_seq:
 error_drone_speech_import_nurse:
 error_drone_vox_save:
 error_drone_part_say:
-    xas_drone_vox_destroy(drone_vox);
-
-error_drone_vox_new:
     xas_drone_chamber_destroy(chamber);
 
 error_drone_chamber_new: