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/CrossM/Include/MathConst.h

@@ -0,0 +1,9 @@
+#pragma once
+
+namespace CrossM{
+namespace Math{
+
+const float F_EPSILON	= 1.0e-5f;
+const float F_PI		= 3.1415926535f;
+
+}}