Directory structure cleanup and organization overhaul

tests/unit/debug_empty_paths.py

@@ -0,0 +1,80 @@
+#!/usr/bin/env python3
+"""Debug empty paths issue"""
+
+import mcrfpy
+import sys
+
+print("Debugging empty paths...")
+
+# Create scene and grid
+mcrfpy.createScene("debug")
+grid = mcrfpy.Grid(grid_x=10, grid_y=10)
+
+# Initialize grid - all walkable
+print("\nInitializing grid...")
+for y in range(10):
+    for x in range(10):
+        grid.at(x, y).walkable = True
+
+# Test simple path
+print("\nTest 1: Simple path from (0,0) to (5,5)")
+path = grid.compute_astar_path(0, 0, 5, 5)
+print(f"  A* path: {path}")
+print(f"  Path length: {len(path)}")
+
+# Test with Dijkstra
+print("\nTest 2: Same path with Dijkstra")
+grid.compute_dijkstra(0, 0)
+dpath = grid.get_dijkstra_path(5, 5)
+print(f"  Dijkstra path: {dpath}")
+print(f"  Path length: {len(dpath)}")
+
+# Check if grid is properly initialized
+print("\nTest 3: Checking grid cells")
+for y in range(3):
+    for x in range(3):
+        cell = grid.at(x, y)
+        print(f"  Cell ({x},{y}): walkable={cell.walkable}")
+
+# Test with walls
+print("\nTest 4: Path with wall")
+grid.at(2, 2).walkable = False
+grid.at(3, 2).walkable = False
+grid.at(4, 2).walkable = False
+print("  Added wall at y=2, x=2,3,4")
+
+path2 = grid.compute_astar_path(0, 0, 5, 5)
+print(f"  A* path with wall: {path2}")
+print(f"  Path length: {len(path2)}")
+
+# Test invalid paths
+print("\nTest 5: Path to blocked cell")
+grid.at(9, 9).walkable = False
+path3 = grid.compute_astar_path(0, 0, 9, 9)
+print(f"  Path to blocked cell: {path3}")
+
+# Check TCOD map sync
+print("\nTest 6: Verify TCOD map is synced")
+# Try to force a sync
+print("  Checking if syncTCODMap exists...")
+if hasattr(grid, 'sync_tcod_map'):
+    print("  Calling sync_tcod_map()")
+    grid.sync_tcod_map()
+else:
+    print("  No sync_tcod_map method found")
+
+# Try path again
+print("\nTest 7: Path after potential sync")
+path4 = grid.compute_astar_path(0, 0, 5, 5)
+print(f"  A* path: {path4}")
+
+def timer_cb(dt):
+    sys.exit(0)
+
+# Quick UI setup
+ui = mcrfpy.sceneUI("debug")
+ui.append(grid)
+mcrfpy.setScene("debug")
+mcrfpy.setTimer("exit", timer_cb, 100)
+
+print("\nStarting timer...")