Directory structure cleanup and organization overhaul

tests/demos/dijkstra_demo_working.py

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+#!/usr/bin/env python3
+"""
+Working Dijkstra Demo with Clear Visual Feedback
+================================================
+
+This demo shows pathfinding with high-contrast colors.
+"""
+
+import mcrfpy
+import sys
+
+# High contrast colors
+WALL_COLOR = mcrfpy.Color(40, 20, 20)      # Very dark red/brown for walls
+FLOOR_COLOR = mcrfpy.Color(60, 60, 80)     # Dark blue-gray for floors
+PATH_COLOR = mcrfpy.Color(0, 255, 0)       # Pure green for paths
+START_COLOR = mcrfpy.Color(255, 0, 0)      # Red for start
+END_COLOR = mcrfpy.Color(0, 0, 255)        # Blue for end
+
+print("Dijkstra Demo - High Contrast")
+print("==============================")
+
+# Create scene
+mcrfpy.createScene("dijkstra_demo")
+
+# Create grid with exact layout from user
+grid = mcrfpy.Grid(grid_x=14, grid_y=10)
+grid.fill_color = mcrfpy.Color(0, 0, 0)
+
+# Map layout
+map_layout = [
+    "..............",  # Row 0
+    "..W.....WWWW..",  # Row 1
+    "..W.W...W.EW..",  # Row 2
+    "..W.....W..W..",  # Row 3
+    "..W...E.WWWW..",  # Row 4
+    "E.W...........",  # Row 5
+    "..W...........",  # Row 6
+    "..W...........",  # Row 7
+    "..W.WWW.......",  # Row 8
+    "..............",  # Row 9
+]
+
+# Create the map
+entity_positions = []
+for y, row in enumerate(map_layout):
+    for x, char in enumerate(row):
+        cell = grid.at(x, y)
+        
+        if char == 'W':
+            cell.walkable = False
+            cell.color = WALL_COLOR
+        else:
+            cell.walkable = True
+            cell.color = FLOOR_COLOR
+            
+            if char == 'E':
+                entity_positions.append((x, y))
+
+print(f"Map created: {grid.grid_x}x{grid.grid_y}")
+print(f"Entity positions: {entity_positions}")
+
+# Create entities
+entities = []
+for i, (x, y) in enumerate(entity_positions):
+    entity = mcrfpy.Entity(x, y)
+    entity.sprite_index = 49 + i  # '1', '2', '3'
+    grid.entities.append(entity)
+    entities.append(entity)
+    print(f"Entity {i+1} at ({x}, {y})")
+
+# Highlight a path immediately
+if len(entities) >= 2:
+    e1, e2 = entities[0], entities[1]
+    print(f"\nCalculating path from Entity 1 ({e1.x}, {e1.y}) to Entity 2 ({e2.x}, {e2.y})...")
+    
+    path = e1.path_to(int(e2.x), int(e2.y))
+    print(f"Path found: {path}")
+    print(f"Path length: {len(path)} steps")
+    
+    if path:
+        print("\nHighlighting path in bright green...")
+        # Color start and end specially
+        grid.at(int(e1.x), int(e1.y)).color = START_COLOR
+        grid.at(int(e2.x), int(e2.y)).color = END_COLOR
+        
+        # Color the path
+        for i, (x, y) in enumerate(path):
+            if i > 0 and i < len(path) - 1:  # Skip start and end
+                grid.at(x, y).color = PATH_COLOR
+                print(f"  Colored ({x}, {y}) green")
+
+# Keypress handler
+def handle_keypress(scene_name, keycode):
+    if keycode == 81 or keycode == 113 or keycode == 256:  # Q/q/ESC
+        print("\nExiting...")
+        sys.exit(0)
+    elif keycode == 32:  # Space
+        print("\nRefreshing path colors...")
+        # Re-color the path to ensure it's visible
+        if len(entities) >= 2 and path:
+            for x, y in path[1:-1]:
+                grid.at(x, y).color = PATH_COLOR
+
+# Set up UI
+ui = mcrfpy.sceneUI("dijkstra_demo")
+ui.append(grid)
+
+# Scale grid
+grid.size = (560, 400)  # 14*40, 10*40
+grid.position = (120, 100)
+
+# Add title
+title = mcrfpy.Caption("Dijkstra Pathfinding - High Contrast", 200, 20)
+title.fill_color = mcrfpy.Color(255, 255, 255)
+ui.append(title)
+
+# Add legend
+legend1 = mcrfpy.Caption("Red=Start, Blue=End, Green=Path", 120, 520)
+legend1.fill_color = mcrfpy.Color(200, 200, 200)
+ui.append(legend1)
+
+legend2 = mcrfpy.Caption("Press Q to quit, SPACE to refresh", 120, 540)
+legend2.fill_color = mcrfpy.Color(150, 150, 150)
+ui.append(legend2)
+
+# Entity info
+info = mcrfpy.Caption(f"Path: Entity 1 to 2 = {len(path) if 'path' in locals() else 0} steps", 120, 60)
+info.fill_color = mcrfpy.Color(255, 255, 100)
+ui.append(info)
+
+# Set up input
+mcrfpy.keypressScene(handle_keypress)
+mcrfpy.setScene("dijkstra_demo")
+
+print("\nDemo ready! The path should be clearly visible in bright green.")
+print("Red = Start, Blue = End, Green = Path")
+print("Press SPACE to refresh colors if needed.")