add Lua bindings

stepmania/src/GameState.cpp

@@ -1873,6 +1873,8 @@ public:
 		p->ApplyGameCommand(SArg(1),pn);
 		return 0;
 	}
+	static int GetCurrentSong( T* p, lua_State *L )			{ if(p->m_pCurSong) p->m_pCurSong->PushSelf(L); else lua_pushnil(L); return 1; }
+	static int SetCurrentSong( T* p, lua_State *L )			{ Song *pS = Luna<Song>::check(L,1); p->m_pCurSong = pS; return 0; }
 	static int GetCurrentCourse( T* p, lua_State *L )		{ if(p->m_pCurCourse) p->m_pCurCourse->PushSelf(L); else lua_pushnil(L); return 1; }
 	static int SetCurrentCourse( T* p, lua_State *L )		{ Course *pC = Luna<Course>::check(L,1); p->m_pCurCourse = pC; return 0; }
 	static int SetTemporaryEventMode( T* p, lua_State *L )	{ p->m_bTemporaryEventMode = BArg(1); return 0; }
@@ -1884,6 +1886,8 @@ public:
 		ADD_METHOD( GetPlayerDisplayName )
 		ADD_METHOD( GetMasterPlayerNumber )
 		ADD_METHOD( ApplyGameCommand )
+		ADD_METHOD( GetCurrentSong )
+		ADD_METHOD( SetCurrentSong )
 		ADD_METHOD( GetCurrentCourse )
 		ADD_METHOD( SetCurrentCourse )
 		ADD_METHOD( SetTemporaryEventMode )

stepmania/src/Song.cpp

@@ -1404,6 +1404,38 @@ bool Song::HasSignificantBpmChangesOrStops() const
 	return m_Timing.HasBpmChangesOrStops();
 }
 
+
+// lua start
+#include "LuaBinding.h"
+
+template<class T>
+class LunaSong : public Luna<T>
+{
+public:
+	LunaSong() { LUA->Register( Register ); }
+
+	static int GetFullDisplayTitle( T* p, lua_State *L )	{ lua_pushstring(L, p->GetFullDisplayTitle() ); return 1; }
+	static int GetFullTranslitTitle( T* p, lua_State *L )	{ lua_pushstring(L, p->GetFullTranslitTitle() ); return 1; }
+	static int GetAllSteps( T* p, lua_State *L )
+	{
+		const vector<Steps*> &v = p->GetAllSteps();
+		CreateTableFromArray<Steps*>( v, L );
+		return 1;
+	}
+
+	static void Register(lua_State *L)
+	{
+		ADD_METHOD( GetFullDisplayTitle )
+		ADD_METHOD( GetFullTranslitTitle )
+		ADD_METHOD( GetAllSteps )
+		Luna<T>::Register( L );
+	}
+};
+
+LUA_REGISTER_CLASS( Song )
+// lua end
+
+
 /*
  * (c) 2001-2004 Chris Danford, Glenn Maynard
  * All rights reserved.

stepmania/src/Steps.cpp

@@ -326,6 +326,31 @@ void Steps::SetRadarValues( const RadarValues& v )
 	m_RadarValues = v;
 }
 
+
+// lua start
+#include "LuaBinding.h"
+
+template<class T>
+class LunaSteps : public Luna<T>
+{
+public:
+	LunaSteps() { LUA->Register( Register ); }
+
+	static int GetStepsType( T* p, lua_State *L )	{ lua_pushnumber(L, p->m_StepsType ); return 1; }
+	static int GetDescription( T* p, lua_State *L )	{ lua_pushstring(L, p->GetDescription() ); return 1; }
+
+	static void Register(lua_State *L)
+	{
+		ADD_METHOD( GetStepsType )
+		ADD_METHOD( GetDescription )
+		Luna<T>::Register( L );
+	}
+};
+
+LUA_REGISTER_CLASS( Steps )
+// lua end
+
+
 /*
  * (c) 2001-2004 Chris Danford, Glenn Maynard, David Wilson
  * All rights reserved.

stepmania/src/Steps.h

@@ -10,6 +10,7 @@
 #include "Difficulty.h"
 class NoteData;
 class Profile;
+struct lua_State;
 
 class Steps
 {
@@ -55,6 +56,9 @@ public:
 
 	void TidyUpData();
 
+	// Lua
+	void PushSelf( lua_State *L );
+
 protected:
 	/* If this Steps is autogenerated, this will point to the autogen
 	 * source.  If this is true, notes_comp will always be NULL. */

stepmania/src/song.h

@@ -15,6 +15,7 @@ class NotesLoader;
 class LyricsLoader;
 class Profile;
 class StepsID;
+struct lua_State;
 
 #define MAX_EDITS_PER_SONG_PER_PROFILE	5
 #define MAX_EDITS_PER_SONG				5*NUM_PROFILE_SLOTS
@@ -224,6 +225,9 @@ public:
 	// means "this note doens't have a keysound".
 	vector<CString> m_vsKeysoundFile;
 
+	// Lua
+	void PushSelf( lua_State *L );
+
 private:
 	void AdjustDuplicateSteps(); // part of TidyUpData
 	void DeleteDuplicateSteps( vector<Steps*> &vSteps );