如何让敌人在pygame上随机掉落? [英] How to make enemies fall at random on pygame?
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问题描述
我希望敌人在我的游戏中随机从天而降,但我不知道该怎么做.
我正在使用这个 youtube 视频:Pygame 中的坠落物体.>
I want enemies to randomly fall from the sky on my game and I do not know how to do this.
I was using this youtube video: Falling Objects in Pygame.
import pygame, random
pygame.init()
screen_width = 800
screen_height = 600
window = pygame.display.set_mode((screen_width, screen_height))
pygame.display.set_caption('Test')
time = pygame.time.Clock()
bg_color1 = (135, 142, 142) # MAIN BG COLOR
bg_color2 = (255, 0, 0) # red
bg_color3 = (255, 255, 0) # yellow
UFO = pygame.image.load('ufo.png')
bg_pic = pygame.image.load('Letsgo.jpg')
clock = pygame.time.Clock()
playerImg = pygame.image.load('enemy.png')
playerX = random.randrange(0, screen_width)
playerY = -50
playerX_change = 0
player_speed = 5
def player(x, y):
window.blit(playerImg, (playerX, playerY))
crashed = False
rect = UFO.get_rect()
obstacle = pygame.Rect(400, 200, 80, 80)
menu = True
playerY = playerY + player_speed
if playerY > screen_height:
playerX = random.randrange(0,screen_width)
playerY = -10
def ufo(x, y):
window.blit(UFO, (x, y))
while menu:
for event in pygame.event.get():
if event.type == pygame.QUIT:
quit()
elif event.type == pygame.MOUSEBUTTONDOWN:
if event.button == 1:
menu = False
window.fill((0, 0, 0))
time.tick(30)
window.blit(bg_pic, (0, 0))
pygame.display.update()
x = (screen_width * 0.45)
y = (screen_height * 0.8)
x_change = 0
car_speed = 0
y_change = 0
while not crashed:
x += x_change
if x < 0:
x = 0
elif x > screen_width - UFO.get_width():
x = screen_width - UFO.get_width()
y += y_change
if y < 0:
y = 0
elif y > screen_height - UFO.get_height():
y = screen_height - UFO.get_height()
for event in pygame.event.get():
if event.type == pygame.QUIT:
crashed = True
############SIDE TO SIDE################
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_LEFT:
x_change = -5
elif event.key == pygame.K_RIGHT:
x_change = 5
if event.type == pygame.KEYUP:
if event.key == pygame.K_LEFT or event.key == pygame.K_RIGHT:
x_change = 0
###########UP AND DOWN#################
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_UP:
y_change = -5
elif event.key == pygame.K_DOWN:
y_change = 5
if event.type == pygame.KEYUP:
if event.key == pygame.K_UP or event.key == pygame.K_DOWN:
y_change = 0
##
x += x_change
y += y_change
##
window.fill(bg_color1)
ufo(x, y)
player(playerX, playerY)
pygame.display.update()
clock.tick(100)
pygame.quit()
quit()
所以应该使图像掉落的代码是这样的
So the code that was supposed to make the image fall was this
if playerY > screen_height:
playerX = random.randrange(0,screen_width)
playerY = -10
推荐答案
移动以下代码:
if playerY > screen_height:
playerX = random.randrange(0,screen_width)
playerY = -10
到这里以便它可以在游戏循环中:
To here so it can be within the game loop:
for event in pygame.event.get():
if event.type == pygame.QUIT:
crashed = True
############SIDE TO SIDE################
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_LEFT:
x_change = -5
elif event.key == pygame.K_RIGHT:
x_change = 5
if event.type == pygame.KEYUP:
if event.key == pygame.K_LEFT or event.key == pygame.K_RIGHT:
x_change = 0
###########UP AND DOWN#################
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_UP:
y_change = -5
elif event.key == pygame.K_DOWN:
y_change = 5
if event.type == pygame.KEYUP:
if event.key == pygame.K_UP or event.key == pygame.K_DOWN:
y_change = 0
if playerY > screen_height:
playerX = random.randrange(0,screen_width)
playerY = -10
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