所以基本上我在这里尝试编写的是一个使用 Python 编程语言和 Pygame 模块的 Pong 游戏。
我的问题如下：
- 游戏有时会卡在一个循环中，在这个循环中，人工智能桨坐在那里，而它却一遍又一遍地输了
- 球有时会上下跳动？我不知道为什么...
- 球只是来回走动？我不明白为什么它没有像我想要的那样沿着一条随机线走……
- 而我最大的问题，似乎是当球击中顶部或底部时，它就消失了，游戏继续进行，就好像它还在弹跳一样。
我的代码
# Pong
import random, pygame, sys
from pygame.locals import *
FPS = 300
WINWID = 640
WINHEI = 480
BROWN = (102, 51, 0)
LIGHTBLUE = (0, 204, 204)
GREEN = (0, 153, 0)
PADDLECOLOR = (255, 255, 255)
BALLCOLOR = PADDLECOLOR
BACKGROUNDCOLOR = (0, 0, 0)
def main():
global FPSCLOCK, DISPLAYSURF
SPEED = 1
DIFF = 1.0 # AI paddle speed handicap
ball_speed = 1
AISIGHT = WINWID/6
FONT = "Times New Roman"
pygame.init()
DEFAULTFONT = pygame.font.SysFont(FONT, 16)
BIGGERFONT = pygame.font.SysFont(FONT, 32)
FPSCLOCK = pygame.time.Clock()
DISPLAYSURF = pygame.display.set_mode((WINWID, WINHEI))
DISPLAYSURF.fill(BACKGROUNDCOLOR)
BACKGROUND = pygame.Rect(0, 0, WINWID, WINHEI)
pygame.display.set_caption('Pong')
paddleUP, paddleDOWN = False, False
ballpos = (WINWID/2, WINHEI/2)
AIpoint, PLAYERpoint = 0, 0
score = "Player:%2f || Computer:%2f" % (AIpoint, PLAYERpoint)
paddle = WINHEI/2
AIpaddle = paddle
pygame.draw.rect(DISPLAYSURF, BACKGROUNDCOLOR, BACKGROUND)
pygame.draw.line(DISPLAYSURF, PADDLECOLOR, (9, paddle-20), (9, paddle+20), 3)
pygame.draw.line(DISPLAYSURF, PADDLECOLOR, (629, AIpaddle-20), (629, AIpaddle+20), 3)
pygame.draw.circle(DISPLAYSURF, BALLCOLOR, ballpos, 5)
slope, y_int = ballpath(None, ballpos[0], ballpos[1])
while True:
for event in pygame.event.get():
direction = None
if event.type == QUIT:
terminate()
elif event.type == KEYDOWN:
if (event.key == K_UP or event.key == K_w):
paddleUP = True
elif (event.key == K_DOWN or event.key == K_s):
paddleDOWN = True
elif event.type == KEYUP:
if (event.key == K_UP or event.key == K_w):
paddleUP = False
elif (event.key == K_DOWN or event.key == K_s):
paddleDOWN = False
# move player paddle
if paddleUP and paddle >= 20:
paddle-=SPEED
elif paddleDOWN and paddle <= 460:
paddle+=SPEED
# move AI paddle
if ballpos[0] > (AISIGHT):
if AIpaddle-20 < ballpos[1] and AIpaddle <= 460:
AIpaddle+=SPEED/DIFF
elif AIpaddle+20 > ballpos[1] and AIpaddle >= 20:
AIpaddle-=SPEED/DIFF
# move ball
x = ballpos[0] + ball_speed
y = (slope*x) + y_int
ballpos = (x, y)
# if it hits a paddle
if 9 < ballpos[0] < 11:
if paddle-20 < ballpos[1] < paddle+20:
slope, y_int = ballpath(None, ballpos[0], ballpos[1])
ball_speed*=-1
elif 629 < ballpos[0] < 631:
if AIpaddle-20 < ballpos[1] < AIpaddle+20:
slope, y_int = ballpath(None, ballpos[0], ballpos[1])
ball_speed*=-1
# if it hits the top or bottom
if WINHEI-5 > ballpos[1] or ballpos[1] < 5:
slope, y_int = ballpath(slope, ballpos[0], ballpos[1])
# if paddle misses ball
if ballpos[0] < 5:
AIpoint+=1
score = "Player:%2f || Computer:%2f" % (PLAYERpoint, AIpoint)
ballpos = (WINWID/2, WINHEI/2)
pygame.draw.rect(DISPLAYSURF, (0, 0, 0, 100), pygame.Rect(0, 0, 640, 480))
DISPLAYSURF.blit(BIGGERFONT.render("Point: Computer", 1, PADDLECOLOR), (WINWID/3, WINHEI/3))
paddle, AIpaddle = WINWID/2, WINWID/2
for i in range(5):
FPSCLOCK.tick(FPS)
elif ballpos[0] > 635 and AIpaddle-20 < ballpos[1] < AIpaddle+20:
PLAYERpoint+=1
score = "Player:%2f || Computer:%2f" % (PLAYERpoint, AIpoint)
ballpos = (WINWID/2, WINHEI/2)
pygame.draw.rect(DISPLAYSURF, (0, 0, 0, 100), pygame.Rect(0, 0, 640, 480))
DISPLAYSURF.blit(BIGGERFONT.render("Point: Player", 1, PADDLECOLOR), (WINWID/3, WINHEI/3))
for i in range(5):
FPSCLOCK.tick(FPS)
pygame.draw.rect(DISPLAYSURF, BACKGROUNDCOLOR, BACKGROUND)
pygame.draw.line(DISPLAYSURF, PADDLECOLOR, (9, paddle-20), (9, paddle+20), 3)
pygame.draw.line(DISPLAYSURF, PADDLECOLOR, (629, AIpaddle-20), (629, AIpaddle+20), 3)
pygame.draw.circle(DISPLAYSURF, BALLCOLOR, ballpos, 5)
DISPLAYSURF.blit(DEFAULTFONT.render(score, 1, PADDLECOLOR), (WINWID/3, 20))
pygame.display.update()
FPSCLOCK.tick(FPS)
def ballpath(old_slope, ball_x, ball_y):
if old_slope == None:
slope = int(random.random() * 2)
else:
slope = old_slope * -1
y_int = ball_y - (slope * ball_x)
return slope, y_int
def terminate():
pygame.quit()
sys.exit()
if __name__ == '__main__':
main()