added money and active_tower to World class

world.py

@@ -38,6 +38,10 @@ class World:
         self.round_start_time = 0
         self.round_spawn_times = []
         self.enemies = []
+        self.active_tower = 0
+
+        # Player stats
+        self.money = 1000
     
     def generate_enemy_spawn_times(self, round_index: int) -> list[tuple[any, int]]:
         """