0
我正在做一個pygame程序，一本廚師掉下比薩餅的書，你必須用一個平底鍋抓住它們。廚師和鍋精靈只創建一次，而披薩精靈顯然不斷創建。我試圖讓分數變得更高，廚師開始更快地移動（只在x中移動）。我認爲我遇到了類屬性vs實例屬性的麻煩。我一直無法找到從廚師課獲得分數的方法，儘管我嘗試將分數作爲全局變量，甚至只是將它分配給一個虛擬的全局變量（這將允許我在主菜單中更改廚師的速度）更新方法）。另外，我嘗試訪問泛類中的廚師dx，因爲這是評分的地方。即使使用getattr方法，我也無法訪問它。將不勝感激任何建議在這一個。這是泛和廚師課程的代碼。我已經評論了我嘗試過但沒有工作的部分內容。改變pygame中一個不變的精靈對象的速度
from livewires import games, color
import random
games.init(screen_width = 640, screen_height = 480, fps = 50)
class Pan(games.Sprite):
"""
A pan controlled by player to catch falling pizzas.
"""
image = games.load_image("pan.bmp")
def __init__(self):
""" Initialize Pan object and create Text object for score. """
super(Pan, self).__init__(image = Pan.image,
x = games.mouse.x,
bottom = games.screen.height)
self.score = games.Text(value = 0, size = 25, color = color.black,
top = 5, right = games.screen.width - 10)
games.screen.add(self.score)
def update(self):
""" Move to mouse x position. """
self.x = games.mouse.x
if self.left < 0:
self.left = 0
if self.right > games.screen.width:
self.right = games.screen.width
self.check_catch()
def check_catch(self):
""" Check if catch pizzas. """
for pizza in self.overlapping_sprites:
self.score.value += 10
#increase the speed of the pizza
# if self.score.value % 100 == 0:
# Pizza.speed += 0.1
# print(Pizza.speed)
#increase the speed of the chef
# if self.score.value % 100 == 0:
# print(Chef.dx)
# print(x)
# y = int(x)*2
# print(y)
self.score.right = games.screen.width - 10
pizza.handle_caught()
class Chef(games.Sprite):
"""
A chef which moves left and right, dropping pizzas.
"""
image = games.load_image("chef.bmp")
speed = 2
def __init__(self, y = 55, odds_change = 200):
""" Initialize the Chef object. """
super(Chef, self).__init__(image = Chef.image,
x = games.screen.width/2,
y = y,
dx = Chef.speed)
self.odds_change = odds_change
self.time_til_drop = 0
def update(self):
#x = getattr(Pan,"score")
#print(x)
""" Determine if direction needs to be reversed. """
if self.left < 0 or self.right > games.screen.width:
self.dx = -self.dx
elif random.randrange(self.odds_change) == 0:
self.dx = -self.dx
self.check_drop()
def check_drop(self):
""" Decrease countdown or drop pizza and reset countdown. """
if self.time_til_drop > 0:
self.time_til_drop -= 1
else:
new_pizza = Pizza(x = self.x)
games.screen.add(new_pizza)
# set buffer to approx 30% of pizza height, regardless of pizza speed
self.time_til_drop = int(new_pizza.height * 1.3/Pizza.speed) + 1
def main():
""" Play the game. """
wall_image = games.load_image("wall.jpg", transparent = False)
games.screen.background = wall_image
the_chef = Chef()
games.screen.add(the_chef)
the_pan = Pan()
games.screen.add(the_pan)
games.mouse.is_visible = False
games.screen.event_grab = True
games.screen.mainloop()
# start it up!
main()