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 Base Class/Error.h

@@ -0,0 +1,41 @@
+// Error.h: interface for the CError class.
+//
+//////////////////////////////////////////////////////////////////////
+
+#if !defined(AFX_ERROR_H__0F1AE97A_A373_4DE7_B36A_23BE292D42B2__INCLUDED_)
+#define AFX_ERROR_H__0F1AE97A_A373_4DE7_B36A_23BE292D42B2__INCLUDED_
+
+#if _MSC_VER > 1000
+#pragma once
+#endif // _MSC_VER > 1000
+#include <string>
+
+const long  MAX_ERRORBUFFER=256;
+
+
+class CError  
+{
+protected:
+	char m_strErrormsg[MAX_ERRORBUFFER];
+public:
+	CError();
+	virtual ~CError();
+	void SetErrorMsg(char *msg)
+	{
+		strcpy(m_strErrormsg,msg);
+	}
+	virtual char *GetErrorMsg()
+	{
+		char msgtemp[MAX_ERRORBUFFER];
+		strcpy(msgtemp,"General Error:");
+		strcat(msgtemp,m_strErrormsg);
+		strcpy(m_strErrormsg,msgtemp);
+		return m_strErrormsg;
+	}
+	CError(char *msg)
+	{
+		SetErrorMsg(msg);
+	}
+};
+
+#endif // !defined(AFX_ERROR_H__0F1AE97A_A373_4DE7_B36A_23BE292D42B2__INCLUDED_)