Add AddCommand and THEME:GetMetricA.

This won't work with theme reloading, but that hasn't worked in a long time anyway
(recreating the Lua environment while it's actually in use is hard).

stepmania/src/Actor.cpp

@@ -1394,6 +1394,13 @@ public:
 	static int playcommand( T* p, lua_State *L )		{ p->PlayCommand(SArg(1),NULL); return 0; }
 	static int queuecommand( T* p, lua_State *L )		{ p->QueueCommand(SArg(1)); return 0; }
 	static int queuemessage( T* p, lua_State *L )		{ p->QueueMessage(SArg(1)); return 0; }
+	static int addcommand( T* p, lua_State *L )
+	{
+		LuaReference *pRef = new LuaReference;
+		pRef->SetFromStack( L );
+		p->AddCommand( SArg(1), apActorCommands(pRef) );
+		return 0;
+	}
 
 	static int GetX( T* p, lua_State *L )				{ lua_pushnumber( L, p->GetX() ); return 1; }
 	static int GetY( T* p, lua_State *L )				{ lua_pushnumber( L, p->GetY() ); return 1; }
@@ -1524,6 +1531,7 @@ public:
 		ADD_METHOD( playcommand );
 		ADD_METHOD( queuecommand );
 		ADD_METHOD( queuemessage );
+		ADD_METHOD( addcommand );
 
 		ADD_METHOD( GetX );
 		ADD_METHOD( GetY );

stepmania/src/ActorCommands.h

@@ -18,7 +18,7 @@ private:
 	CString m_sLuaFunction;
 };
 
-typedef AutoPtrCopyOnWrite<ActorCommands> apActorCommands;
+typedef AutoPtrCopyOnWrite<LuaReference> apActorCommands;
 
 #endif
 

stepmania/src/NoteSkinManager.cpp

@@ -299,10 +299,12 @@ public:
 	LunaNoteSkinManager() { LUA->Register( Register ); }
 
 	static int GetPath( T* p, lua_State *L )		{ lua_pushstring(L, p->GetPath(SArg(1),SArg(2)) ); return 1; }
+	static int GetMetricA( T* p, lua_State *L )		{ p->GetMetricA(SArg(1),SArg(2))->PushSelf(L); return 1; }
 
 	static void Register(lua_State *L)
 	{
 		ADD_METHOD( GetPath );
+		ADD_METHOD( GetMetricA );
 
 		Luna<T>::Register( L );