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from typing import Callable, List
from config import Config
from menu import Menu
class Cheat:
"""A single cheat, to be assigned to a cheat engine"""
def __init__(self, game, code: List[str], callback: Callable):
"""Initialise the cheat
:param game: The game which the cheat belongs to
:param code: A string of key codes to be pressed to activate the cheat
:type code: List[str]
:param callback: The function to be called when this cheat is activated
:type callback: Callable
"""
self.game = game
self.code = code
self.callback = callback
self.position = 0
def on_key(self, event):
"""Handle a key press event
:param event: The event that is being handled
"""
if self.position < len(self.code):
next_key = self.code[self.position]
if event.keysym == next_key:
self.position += 1
if self.position == len(self.code):
self.callback()
self.position = 0
else:
self.position = 0
return False
class InvincibilityCheat(Cheat):
"""Cheat that makes the player invincible"""
def __init__(self, game, code: List[str]):
"""Initialise the cheat
:param game: The game which this belongs to
:param code: The combination of characters for which to
activate this cheat
:type code: List[str]
"""
super().__init__(game, code, self.toggle)
self.enabled = False
self.damage_function = None
def toggle(self):
"""Enable or disable this cheat"""
self.enabled = not self.enabled
if self.enabled:
self.game.effect_player.splash_text("Godmode on")
self.game.player.set_image(self.game.player.white_image)
self.damage_function = self.game.player.damage
self.game.player.damage = (lambda: None)
else:
self.game.effect_player.splash_text("Godmode off")
self.game.player.set_image(
self.game.texture_factory.get_image("ship"))
self.game.player.damage = self.damage_function
class DevModeCheat(Cheat):
"""Cheat that enables 'dev mode' which:
- enables spawning menu
- key to remove all enemies
- key to stop spawning outright
"""
def __init__(self, game, code: List[str]):
"""Initialise the cheat
:param game: The game which this belongs to
:param code: The combination of characters which activate this cheat
:type code: List[str]
"""
super().__init__(game, code, self.toggle)
self.enabled = Config.DEVMODE
self.spawning_disabled = False
self.spawn_menu = Menu(self.game, "Spawn Menu")
for i in ("circle_boss",
"snake_boss",
"loop",
"orbital",
"rectangle",
"fleet"):
self.spawn_menu.add_item(i, self.spawn_item(i))
def toggle(self):
"""Toggle if this mode is enabled"""
self.enabled = not self.enabled
if self.enabled:
self.game.effect_player.splash_text("devmode on")
else:
self.game.effect_player.splash_text("devmode off")
def spawn_item(self, name):
"""Spawn a named item from the menu
:param name: The name of the formation to spawn
"""
return lambda: (
self.spawn_menu.hide(),
getattr(self.game.formation_spawner, f"spawn_{name}")()
)
def on_key(self, event):
"""Handle Key press events
:param event: The key press event to handle
"""
if self.enabled:
if event.keysym == "n":
self.game.formation_spawner.clear_all()
self.game.formation_spawner.next_phase()
if event.keysym == "c":
self.game.formation_spawner.clear_all()
if event.keysym == "k":
if self.spawning_disabled:
self.game.effect_player.splash_text("spawning on")
self.spawning_disabled = False
self.game.formation_spawner.next_formation = 0
else:
self.game.effect_player.splash_text("spawning off")
self.game.formation_spawner.clear_all()
self.game.formation_spawner.next_formation = -1
if event.keysym == "m":
self.spawn_menu.show()
return super().on_key(event)
class CheatEngine:
"""Object which manages cheats"""
def __init__(self, game):
"""Initialise the cheat engine
:param game: The game which this belongs to
"""
self.game = game
self.cheats = []
def add_cheat(self, cheat):
"""Register a cheat to the engine
:param cheat: The cheat to be registered
"""
self.game.inputs.add_keypress_handler(cheat.on_key)
self.cheats.append(cheat)
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