Initial import of Red Planet v4.10 Win32 source

Imports the current Win32 source for the pod-racing game 'Red Planet',
built on the MUNGA engine and its L4 (Win32/DirectX) platform layer:

- MUNGA / MUNGA_L4: cross-platform engine core and Win32 backend
- RP / RP_L4: Red Planet game logic and Win32 application
- DivLoader, Setup1: asset loader and installer project
- lib, MUNGA_L4/openal, MUNGA_L4/sos: third-party audio dependencies

Removed stale Subversion metadata and added .gitignore/.gitattributes.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

MUNGA/AUDTOOLS.cpp

@@ -0,0 +1,102 @@
+#include "munga.h"
+#pragma hdrstop
+
+#include "audtools.h"
+
+#include <fstream>
+#include <io.h>
+#include <sys\stat.h>
+
+#include "audio.h"
+#include "boxsolid.h"
+
+AudioCreateSymbols::AudioCreateSymbols()
+{
+}
+
+AudioCreateSymbols::~AudioCreateSymbols()
+{
+}
+
+void AudioCreateSymbols::MakeFileReadWrite(const CString &file_name)
+{
+	if (access(file_name, 0) == 0)
+	{
+		int amode = S_IREAD|S_IWRITE;
+		#if DEBUG_LEVEL>0
+			int ret =
+		#endif
+		chmod(file_name, amode);
+		Verify(ret == 0);
+	}
+}
+
+void AudioCreateSymbols::Execute()
+{
+	CString file_name("audio\\symbols.scp");
+
+	MakeFileReadWrite(file_name);
+
+	std::ofstream symbol_file(file_name, std::ios::out);
+
+	Verify(symbol_file);
+	symbol_file << "[macro]\n";
+
+	WriteEntryStream(symbol_file);
+}
+
+void AudioCreateSymbols::WriteEntryStream(std::ofstream &symbol_file)
+{
+	#define WRITE_ENTRY(name)\
+		{\
+			Verify(symbol_file);\
+			symbol_file << #name;\
+			symbol_file << "=";\
+			symbol_file << name;\
+			symbol_file << "\n";\
+		}
+
+	//
+	// Solids
+	//
+	WRITE_ENTRY(BoxedSolid::StoneMaterial);
+	WRITE_ENTRY(BoxedSolid::GravelMaterial);
+	WRITE_ENTRY(BoxedSolid::ConcreteMaterial);
+	WRITE_ENTRY(BoxedSolid::WoodMaterial);
+	WRITE_ENTRY(BoxedSolid::RockMaterial);
+	WRITE_ENTRY(BoxedSolid::OurCraftMaterial);
+	WRITE_ENTRY(BoxedSolid::OtherCraftMaterial);
+
+	//
+	// Audio
+	//
+	WRITE_ENTRY(TransientAudioRenderType);
+	WRITE_ENTRY(SustainedAudioRenderType);
+
+	WRITE_ENTRY(MinAudioSourcePriority);
+	WRITE_ENTRY(LowAudioSourcePriority);
+	WRITE_ENTRY(MedAudioSourcePriority);
+	WRITE_ENTRY(HighAudioSourcePriority);
+	WRITE_ENTRY(MaxAudioSourcePriority);
+
+	WRITE_ENTRY(MinAudioSourceMixPresence);
+	WRITE_ENTRY(LowAudioSourceMixPresence);
+	WRITE_ENTRY(MedAudioSourceMixPresence);
+	WRITE_ENTRY(HighAudioSourceMixPresence);
+	WRITE_ENTRY(MaxAudioSourceMixPresence);
+	WRITE_ENTRY(ManualAudioSourceMixPresence);
+
+	WRITE_ENTRY(NullAudioControlID);
+	WRITE_ENTRY(NoteAudioControlID);
+	WRITE_ENTRY(AttackVolumeAudioControlID);
+	WRITE_ENTRY(AttackTimeAudioControlID);
+	WRITE_ENTRY(DurationAudioControlID);
+	WRITE_ENTRY(VolumeAudioControlID);
+	WRITE_ENTRY(PitchAudioControlID);
+	WRITE_ENTRY(BrightnessAudioControlID);
+	WRITE_ENTRY(StartAudioControlID);
+	WRITE_ENTRY(StopAudioControlID);
+	WRITE_ENTRY(IdleAudioControlID);
+	WRITE_ENTRY(FlushMessagesAudioControlID);
+	WRITE_ENTRY(TempoAudioControlID);
+}