py_stepik/pygame-wasm/phantomcastle/game/coins.py

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from random import sample
import pygame
from coords import Coords
from common import DrawableGameObject, FONT_NAME
from maze import get_maze_sz
class Coin(DrawableGameObject):
"""объект монетки"""
def __init__(
self,
coords: Coords,
parent: DrawableGameObject,
assets: dict | None = None,
):
super().__init__(coords, parent, assets)
self._surface = pygame.image.load(self.assets["coin.png"]).convert_alpha()
self.rect = self.surface.get_rect()
self.rect.topleft = coords
# уменьшаем размер монетки
sf = Coords(0.7, 0.7)
self._surface, self.rect = self.scene.scale_box(self.surface, self.rect, sf)
def draw(self):
self.parent.surface.blit(self.surface, self.rect)
@property
def bounding_rect(self) -> pygame.Rect:
new_rect = self.surface.get_bounding_rect()
new_rect.center = self.rect.center
return new_rect
class Coins(DrawableGameObject):
"""объект коллекции монеток"""
def __init__(
self,
parent: DrawableGameObject,
maze: list[list[int]],
box_sz: Coords,
count: int,
assets: dict | None = None,
):
super().__init__(Coords.zero(), parent, assets)
self.box_sz = box_sz
self._capacity = count
free_points = []
excluded = Coords(0, 1), get_maze_sz(maze) - Coords(1, 2)
for i, row in enumerate(maze):
for j, item in enumerate(row):
p = Coords(j, i)
if item < 1 and p not in excluded:
free_points.append(p)
continue
coin_points = sample(free_points, min(count, len(free_points)))
self.coins = [
Coin(point.transform(box_sz), self, self.assets) for point in coin_points
]
self.collected_coins = []
# Надпись, если все монетки собраны
font = pygame.font.SysFont(FONT_NAME, 30)
text = "Все монетки собраны!"
self.done_txt = font.render(text, 1, "#050366e3")
self.done_txt_rect = self.done_txt.get_rect()
self.done_txt_rect.topleft = Coords(10, 10)
@property
def capacity(self) -> int:
return self._capacity
@property
def coins_left(self) -> int:
return len(self.coins)
@property
def coins_collected(self) -> int:
return self.capacity - self.coins_left
@property
def all_collected(self) -> int:
return self.coins_left == 0
def draw(self):
for coin in self.collected_coins:
coin.draw()
for coin in self.coins:
coin.draw()
if self.all_collected:
self.parent.surface.blit(self.done_txt, self.done_txt_rect)
def add_to_collected(self, coin: Coin):
last_pos = Coords(10, 10)
if self.collected_coins:
last_pos = Coords(*self.collected_coins[-1].rect.topright)
last_pos -= Coords(coin.rect.width // 2, 0)
coin.coords = last_pos
self.collected_coins.append(coin)
def collect(self, actor: DrawableGameObject):
mined = [*filter(lambda coin: coin.overlap(actor.rect, actor.mask), self.coins)]
for coin in mined:
self.coins.remove(coin)
self.add_to_collected(coin)