Immediate Code Cleanup

REFACTORING_TODO.md

@@ -31,18 +31,19 @@
 - Working refactored application (`tetris_refactored.exe`) alongside original
 - Proper error handling and logging throughout
 
-### Immediate Code Cleanup
-- [ ] Remove global variables from main.cpp
-  - [ ] Move static variables to appropriate managers
-  - [ ] Remove global texture and font variables
-  - [ ] Eliminate global state flags
-  - [ ] Clean up static function declarations
+### Immediate Code Cleanup ✅ **COMPLETED**
 
-- [ ] Extract constants to configuration
-  - [ ] Create Config namespace with all constants
-  - [ ] Remove magic numbers from main.cpp
-  - [ ] Define window size constants
-  - [ ] Set up gameplay timing constants
+- [x] Remove global variables from main.cpp
+  - [x] Move static variables to appropriate managers (GlobalState)
+  - [x] Remove global texture and font variables (AssetManager)
+  - [x] Eliminate global state flags (GlobalState singleton)
+  - [x] Clean up static function declarations
+
+- [x] Extract constants to configuration
+  - [x] Create Config namespace with all constants
+  - [x] Remove magic numbers from main.cpp
+  - [x] Define window size constants
+  - [x] Set up gameplay timing constants
 
 ## 🔧 Phase 2: Core Systems (Week 3-4) - HIGH PRIORITY ✅ **COMPLETED**