如何解决球在 pygame 窗口的边缘反弹并需要一段时间才能出来
球 (TennisBall) 在 pygame 窗口外弹跳 并需要一段时间才能出来
当我的球 (TennisBall) 进入我的球拍时，它会在 pygame 窗口 中弹跳，然后在它外面弹跳并需要一段时间才能出来。如果您在此处运行代码，您可以亲眼看看。
您可以将 code 复制到您的文本编辑器。代码如下：
import pygame,sys,easygui
player1 = easygui.enterBox('Player 1\'s name:',default = 'Mason')
player2 = easygui.enterBox('Player 2\'s name:',default = 'Nolan')
score_display1 = 0
score_display2 = 0
def set_score1(new_score):
global score_display1,score_surface1
score_display1 = new_score
score_surface1 = score_font1.render(str(score_display1),1,(0,0))
def set_score2(new_score):
global score_display2,score_surface2
score_display2 = new_score
score_surface2 = score_font2.render(str(score_display2),0))
def set_rounds(new_round):
global rounds,round_surface,round_text
rounds = new_round
round_text = 'round: ' + str(rounds)
round_surface = round_font.render(str(round_text),0))
# Defines the ball class
class Ball(pygame.sprite.Sprite):
def __init__(self,image_file,speed,location):
pygame.sprite.Sprite.__init__(self)
self.image = pygame.image.load(image_file)
self.rect = self.image.get_rect()
self.rect.left,self.rect.top = location
self.speed = speed
def move(self):
self.rect = self.rect.move(self.speed)
# Bounces the ball
if self.rect.top == 0 :
self.speed[1] = -self.speed[1]
if self.rect.bottom == 480:
self.speed[1] = -self.speed[1]
if self.rect.left <= 0:
self.speed[0] = -self.speed[0]
set_score2(score_display2 + 1)
if self.rect.right >= 640:
self.speed[0] = -self.speed[0]
set_score1(score_display1 + 1)
# Defines the paddle class
class Paddle(pygame.sprite.Sprite):
def __init__(self,location = [0,0]):
pygame.sprite.Sprite.__init__(self)
image_surface = pygame.surface.Surface([20,100])
image_surface.fill([255,25,0])
self.image = image_surface.convert()
self.rect = self.image.get_rect()
self.rect.left,self.rect.top = location
self.location = location
pygame.init()
# Initializes everything
screen = pygame.display.set_mode([640,480])
clock = pygame.time.Clock()
TennisBall = Ball('wackyball.bmp',[5,10],[320,240])
ballGroup = pygame.sprite.Group(TennisBall)
paddle = Paddle([1,150])
paddle2 = Paddle([619,150])
round_font = pygame.font.Font(None,50)
rounds = 0
round_text = 'round: ' + str(rounds)
round_surface = round_font.render(str(round_text),0))
player_rounds_1 = 0
player_rounds_2 = 0
name_text1 = player1
name_text2 = player2
name_surface1 = round_font.render(str(name_text1),0))
name_surface2 = round_font.render(str(name_text2),0))
name_position1 = [10,10]
name_position2 = [500,10]
score_position1 = [130,10]
score_position2 = [610,10]
# Creates the font object
score_font1 = pygame.font.Font(None,50)
score_font2 = pygame.font.Font(None,50)
score_surface1 = score_font1.render(str(score_display1),0))
score_surface2 = score_font2.render(str(score_display2),0))
round_position = [240,10]
done = False
running = True
delay = 10
interval = 50
pygame.key.set_repeat(delay,interval)
while running: # The start of the main program (`while` loop)
clock.tick(30)
screen.fill([255,255,255])
key_input = pygame.key.get_pressed()
for event in pygame.event.get():
if event.type == pygame.QUIT:
running = False
# Detects mouse motion to move the paddle
elif event.type == pygame.MOUSEMOTION:
paddle.rect.centery = event.pos[1]
# Detects keys being pressed
elif key_input[pygame.K_UP]:
if paddle2.rect.top >= 0:
paddle2.rect.top -= 50
elif key_input[pygame.K_DOWN]:
if paddle2.rect.bottom <= 480:
paddle2.rect.bottom += 50
# rounds
if score_display1 >= 11:
player_rounds_1 = player_rounds_1 + 1
score_display1 = 0
score_display2 = 0
set_rounds(rounds + 1)
set_score1(0)
set_score2(0)
TennisBall.location = [320,240]
# TennisBall.speed[1] + 5
# TennisBall.speed[0] + 5
if score_display2 >= 11:
player_rounds_2 = player_rounds_2 + 1
score_display1 = 0
score_display2 = 0
set_rounds(rounds + 1)
set_score1(0)
set_score2(0)
TennisBall.location = [320,240]
# TennisBall.speed[1] + 5
# TennisBall.speed[0] + 5
# Detects collisions between the ball and paddle
if pygame.sprite.spritecollide(paddle,ballGroup,False):
TennisBall.speed[0] = -TennisBall.speed[0]
elif pygame.sprite.spritecollide(paddle2,False):
TennisBall.speed[0] = -TennisBall.speed[0]
TennisBall.move() # Moves the ball
# Redraws everything
if not done:
screen.blit(TennisBall.image,TennisBall.rect)
screen.blit(paddle.image,paddle.rect)
screen.blit(paddle2.image,paddle2.rect)
screen.blit(score_surface1,score_position1)
screen.blit(score_surface2,score_position2)
screen.blit(name_surface1,name_position1)
screen.blit(name_surface2,name_position2)
screen.blit(round_surface,round_position)
pygame.display.flip()
# Creates and draws the final score text
if rounds == 5:
final_text_gameover = "Game Over"
final_text_winner1 = "The winner is " + player1
final_text_winner2 = "The winner is " + player2
final_text_tie = 'No winner. Tie!'
if player_rounds_2 < player_rounds_1:
ft1_font = pygame.font.Font(None,70)
ft1_surface = ft1_font.render(final_text_gameover,0))
ft2_font = pygame.font.Font(None,50)
ft2_surface = ft2_font.render(final_text_winner1,0))
screen.blit(ft1_surface,[screen.get_width()//2 - \
ft1_surface.get_width()//2,100])
screen.blit(ft2_surface,[screen.get_width()//2 - \
ft2_surface.get_width()//2,200])
if player_rounds_2 > player_rounds_1:
ft3_font = pygame.font.Font(None,70)
ft3_surface = ft3_font.render(final_text_gameover,0))
ft4_font = pygame.font.Font(None,50)
ft4_surface = ft4_font.render(final_text_winner2,0))
screen.blit(ft3_surface,[screen.get_width()//2 - \
ft3_surface.get_width()//2,100])
screen.blit(ft4_surface,[screen.get_width()//2 - \
ft4_surface.get_width()//2,200])
if player_rounds_2 == player_rounds_1:
ft5_font = pygame.font.Font(None,70)
ft5_surface = ft5_font.render(final_text_gameover,0))
ft6_font = pygame.font.Font(None,50)
ft6_surface = ft6_font.render(final_text_tie,0))
screen.blit(ft5_surface,[screen.get_width()//2 - \
ft5_surface.get_width()//2,100])
screen.blit(ft6_surface,[screen.get_width()//2 - \
ft6_surface.get_width()//2,200])
done = True
pygame.display.flip()
pygame.quit()
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