Modifica il sistema di rendering SDL e migliora la gestione delle unità nel gioco

rats.py

@@ -1,3 +1,5 @@
+import cProfile
+import pstats
 import random
 from units import rat
 import uuid
@@ -7,11 +9,13 @@ from engine import maze, sdl2 as engine
 class MiceMaze:
     def __init__(self, maze_file):
         self.map = maze.Map(maze_file)
-        self.audio = True
+        self.audio = False
         self.cell_size = 60
         self.engine = engine.GameWindow(self.map.width, self.map.height, self.cell_size, "Mice!", key_callback=self.key_pressed)
         self.graphics_load()
         self.units = {}
+        self.unit_positions = {}
+        self.unit_positions_before = {}
         for _ in range(5):
             self.new_rat()
 
@@ -40,6 +44,11 @@ class MiceMaze:
 
     def update_maze(self):
         self.engine.delete_tag("unit")
+        self.unit_positions.clear()
+        self.unit_positions_before.clear()
+        for unit in self.units.values():
+            self.unit_positions.setdefault(unit.position, []).append(unit)
+            self.unit_positions_before.setdefault(unit.position_before, []).append(unit)
         for unit in self.units.copy().values():
             unit.move()
             unit.collisions()
@@ -62,6 +71,10 @@ class MiceMaze:
                 self.units[random.choice(list(self.units.keys()))].die()
         elif event.keysym == "m":
             self.audio = not self.audio
+        elif event.keysym == "s":
+            profiler.disable()
+            stats = pstats.Stats(profiler).sort_stats('cumtime')
+            stats.print_stats()
 
     def play_sound(self, sound_file):
         if self.audio:
@@ -75,5 +88,10 @@ class MiceMaze:
             self.rat_assets[sex] = {}
             for direction in ["UP", "DOWN", "LEFT", "RIGHT"]:
                 self.rat_assets[sex][direction] = self.engine.load_image(f"Rat/BMP_{sex}_{direction}.png", transparent_color=(128, 128, 128))
-solver = MiceMaze('maze.json')
-solver.run()
+if __name__ == "__main__":
+    profiler = cProfile.Profile()
+    profiler.enable()
+    
+    solver = MiceMaze('maze.json')
+    solver.run()
+