Update asset loading to include transparent color and adjust white flash timing; enhance nuclear bomb scoring and gas unit die method

units/bomb.py

@@ -151,7 +151,7 @@ class NuclearBomb(Unit):
                 if random.random() < 0.7:  # 70% chance to kill each rat
                     rats_to_kill.append(unit)
         for unit in rats_to_kill:
-            unit.die(score=None)
+            unit.die(score=5)
 
         print(f"Nuclear explosion killed {len(rats_to_kill)} rats!")
 

units/gas.py

@@ -47,8 +47,8 @@ class Gas(Unit):
                         self.game.spawn_unit(Gas, (new_x, new_y), parent_id=self.parent_id if self.parent_id else self.id)
     def collisions(self):
         pass
-                    
-    def die(self, unit=None):
+
+    def die(self, unit=None, score=None):
         if not unit:
             unit = self
         self.game.units.pop(unit.id)