Implement '.' sentence skipping, and other shutUpActor use

actor.cpp

@@ -91,6 +91,13 @@ bool Actor::talking() {
   return true;
 }
 
+void Actor::shutUp() {
+    if (talkSound_) {
+    	Mixer::instance()->stopVoice(talkSound_);
+	talkSound_ = NULL;
+    }
+}
+
 void Actor::pushCostume(const char *name) {
   Costume *newCost = ResourceLoader::instance()->
     loadCostume(name, currentCostume());

actor.h

@@ -60,6 +60,7 @@ public:
   void turn(int dir);
 
   void sayLine(const char *msg);
+  void shutUp();
   bool talking();
 
   void pushCostume(const char *name);

lua.cpp

@@ -467,6 +467,12 @@ static void IsMessageGoing() {
   }
 }
 
+static void ShutUpActor() {
+ Actor *act = check_actor(1);
+ if (act)
+  act->shutUp();
+}
+
 // Sector functions
 static void GetActorSector(void) {
   Actor *act = check_actor(1);
@@ -854,7 +860,6 @@ static char *stubFuncs[] = {
   "GetPointSector",
   "IsPointInSector",
   "SetActorFrustrumCull",
-  "ShutUpActor",
   "SetActorFollowBoxes",
   "SetActorHead",
   "GetCameraActor",
@@ -1122,7 +1127,8 @@ struct luaL_reg builtins[] = {
   { "InputDialog", InputDialog },
   { "ChangeTextObject", ChangeTextObject },
   { "GetTextObjectDimensions", GetTextObjectDimensions },
-  { "MakeTextObject", MakeTextObject }
+  { "MakeTextObject", MakeTextObject },
+  { "ShutUpActor", ShutUpActor }
 };
 
 void register_lua() {

mixer.cpp

@@ -312,6 +312,18 @@ void Mixer::stopSfx(Sound *s) {
   }
 }
 
+void Mixer::stopVoice(Sound *s) {
+  AudioLock l;
+
+  for (sound_list::iterator i = voiceSounds_.begin();
+       i != voiceSounds_.end(); ) {
+    if (*i == s)
+      i = voiceSounds_.erase(i);
+    else
+      i++;
+  }
+}
+
 static int compareStates(const void *p1, const void *p2) {
   const imuseTableEntry *e1 = static_cast<const imuseTableEntry *>(p1);
   const imuseTableEntry *e2 = static_cast<const imuseTableEntry *>(p2);

mixer.h

@@ -33,6 +33,7 @@ public:
   void playVoice(Sound *s);
   void playSfx(Sound *s);
   void stopSfx(Sound *s);
+  void stopVoice(Sound *s);
   void setImuseState(int state);
   void setImuseSeq(int seq);