waves 

 1class Wave:
 2    """The class used for generating waves"""
 3    def __init__(self, enemy_data: list, spawn_timer: int):
 4        self._enemy_data = enemy_data
 5        """Enemy data of current wave"""
 6        self._spawn_timer = spawn_timer
 7        """Time between the spawning of enemies"""
 8        self._enemy_list = []
 9        """Enemies that have been spawned"""
10        self._enemy_number = 0
11        """Tracks which enemy is going to be spawned next"""
12
13    def spawn_enemy(self):
14        """Function that spawns enemies"""
15        if self._enemy_number < len(self._enemy_data):
16            """Checks if there are still more enemies to spawn"""
17            this_enemy = self._enemy_data[self._enemy_number]
18            self._enemy_list.append(this_enemy)
19            """Spawns the next enemy"""
20            self._enemy_number += 1
21            """Prepares the next enemy to be spawned"""
22            return this_enemy
23        return None
24        """If there are no enemies to spawn, return None"""
25
26    def _is_wave_complete(self):
27        """Checks if the wave is complete"""
28        return self._enemy_number >= len(self._enemy_data) and all(not enemy.is_alive() for enemy in self._enemy_list)
class Wave: 
 2class Wave:
 3    """The class used for generating waves"""
 4    def __init__(self, enemy_data: list, spawn_timer: int):
 5        self._enemy_data = enemy_data
 6        """Enemy data of current wave"""
 7        self._spawn_timer = spawn_timer
 8        """Time between the spawning of enemies"""
 9        self._enemy_list = []
10        """Enemies that have been spawned"""
11        self._enemy_number = 0
12        """Tracks which enemy is going to be spawned next"""
13
14    def spawn_enemy(self):
15        """Function that spawns enemies"""
16        if self._enemy_number < len(self._enemy_data):
17            """Checks if there are still more enemies to spawn"""
18            this_enemy = self._enemy_data[self._enemy_number]
19            self._enemy_list.append(this_enemy)
20            """Spawns the next enemy"""
21            self._enemy_number += 1
22            """Prepares the next enemy to be spawned"""
23            return this_enemy
24        return None
25        """If there are no enemies to spawn, return None"""
26
27    def _is_wave_complete(self):
28        """Checks if the wave is complete"""
29        return self._enemy_number >= len(self._enemy_data) and all(not enemy.is_alive() for enemy in self._enemy_list)

The class used for generating waves

Wave(enemy_data: list, spawn_timer: int) 
 4    def __init__(self, enemy_data: list, spawn_timer: int):
 5        self._enemy_data = enemy_data
 6        """Enemy data of current wave"""
 7        self._spawn_timer = spawn_timer
 8        """Time between the spawning of enemies"""
 9        self._enemy_list = []
10        """Enemies that have been spawned"""
11        self._enemy_number = 0
12        """Tracks which enemy is going to be spawned next"""
def spawn_enemy(self): 
14    def spawn_enemy(self):
15        """Function that spawns enemies"""
16        if self._enemy_number < len(self._enemy_data):
17            """Checks if there are still more enemies to spawn"""
18            this_enemy = self._enemy_data[self._enemy_number]
19            self._enemy_list.append(this_enemy)
20            """Spawns the next enemy"""
21            self._enemy_number += 1
22            """Prepares the next enemy to be spawned"""
23            return this_enemy
24        return None
25        """If there are no enemies to spawn, return None"""

Function that spawns enemies