Initial commit: ROW Client source code

Game client codebase including:
- CharacterActionControl: Character and creature management
- GlobalScript: Network, items, skills, quests, utilities
- RYLClient: Main client application with GUI and event handlers
- Engine: 3D rendering engine (RYLGL)
- MemoryManager: Custom memory allocation
- Library: Third-party dependencies (DirectX, boost, etc.)
- Tools: Development utilities

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

Engine/Zalla3D Scene Class/Z3DMaskedStream.h

@@ -0,0 +1,46 @@
+// Z3DMaskedStream.h: interface for the CZ3DMaskedStream class.
+//
+//////////////////////////////////////////////////////////////////////
+
+#if !defined(AFX_Z3DMASKEDSTREAM_H__2DFA8D79_3B15_4028_9DF5_C57BC24FA678__INCLUDED_)
+#define AFX_Z3DMASKEDSTREAM_H__2DFA8D79_3B15_4028_9DF5_C57BC24FA678__INCLUDED_
+
+#if _MSC_VER > 1000
+#pragma once
+#endif // _MSC_VER > 1000
+
+#include <stdio.h>
+#include <stdarg.h>
+
+#include "SimpleParser.h"	// just for 'SIMPLE_PARSER_MASK_STRING' to be used as a default param. of Open() method
+
+
+class CZ3DMaskedStream  
+{
+public:
+	CZ3DMaskedStream();
+	virtual ~CZ3DMaskedStream();
+
+	void Reset();
+
+	bool Open( const char* szFileName, const char* szMaskString = SIMPLE_PARSER_MASK_STRING );
+	void Close()
+	{
+		Reset();
+	}
+
+	void Printf( char* szTypes, ... );
+
+protected:
+	char* m_szFileName;
+	FILE* m_pFile;
+
+	char* m_szMaskString;
+	long m_lMaskStringLength;
+	long m_lPointerInMask;
+
+	void SetMaskString( const char* szString );
+	char GetMaskChar();
+};
+
+#endif // !defined(AFX_Z3DMASKEDSTREAM_H__2DFA8D79_3B15_4028_9DF5_C57BC24FA678__INCLUDED_)