我對(duì)編程相當(dāng)陌生，我正在構(gòu)建 Pong 只是一個(gè)初學(xué)者項(xiàng)目。我編寫了以下代碼來(lái)嘗試移動(dòng)兩個(gè)撥片，但是當(dāng)按下向上/向下/w/s 鍵時(shí)，它們都不會(huì)移動(dòng)。然而，在嘗試自己調(diào)試時(shí)，我將其設(shè)置為將 x 和 y 值打印到控制臺(tái)，以查看這是否是問(wèn)題所在，并且 x 和 y 值正在更新，但我的矩形的坐標(biāo)沒(méi)有更新。我確信這是一個(gè)相當(dāng)簡(jiǎn)單的修復(fù)，但我對(duì)編程很陌生，只是不知道出了什么問(wèn)題。這是我的代碼：import timepygame.init()screenW = 800screenH = 600win = pygame.display.set_mode((screenW, screenH))pygame.display.set_caption("Pong")clock = pygame.time.Clock()font = pygame.font.SysFont("comicsans", 20)paddleW = 20paddleH = 100ballSpeed = 15class paddle(object): def __init__(self, x, y, width, height): self.x = x self.y = y self.width = width self.height = height self.pad = (self.x, self.y, self.width, self.height) def draw(self, win): pygame.draw.rect(win, (255,255,255), self.pad)class ball(object): def __init__(self, x, y, side): self.x = x self.y = y self.side = side self.pad = (self.x, self.y, self.side, self.side) def draw(self, win): pygame.draw.rect(win, (255,255,255), self.pad)def redrawGameWindow(): win.fill((0,0,0)) paddleLeft.draw(win) paddleRight.draw(win) theBall.draw(win) pygame.display.update()#Main Loop:paddleLeft = paddle(10, screenH//2, paddleW, paddleH)paddleRight = paddle(screenW - 10 - paddleW, screenH//2, paddleW, paddleH)theBall = ball(screenW//2, screenH//2, 30)run = Truewhile run: clock.tick(30) for event in pygame.event.get(): if event.type == pygame.QUIT: run = False keys = pygame.key.get_pressed() if keys[pygame.K_UP]: print("left up") print(paddleRight.y) paddleRight.y -= ballSpeed elif keys[pygame.K_DOWN]: print("left down") print(paddleRight.y) paddleRight.y += ballSpeed elif keys[pygame.K_w]: print("right up") print(paddleLeft.y) paddleLeft.y -= ballSpeed elif keys[pygame.K_s]: print("right down") print(paddleLeft.y) paddleLeft.y += ballSpeed redrawGameWindow()pygame.quit()
1 回答
回首憶惘然
TA貢獻(xiàn)1847條經(jīng)驗(yàn) 獲得超11個(gè)贊
當(dāng)您更改屬性x和時(shí)y，列表的內(nèi)容pad不會(huì)神奇地改變。
在繪圖之前，您必須更新.pad。例如：
class paddle(object):
# [...]
def draw(self, win):
self.pad = (self.x, self.y, self.width, self.height)
pygame.draw.rect(win, (255,255,255), self.pad)
無(wú)論如何，我建議使用對(duì)象而pygame.Rect不是屬性x、y和width：height
class paddle(object):
def __init__(self, x, y, width, height):
self.rect = pygame.Rect(x, y, width, height)
def draw(self, win):
pygame.draw.rect(win, (255,255,255), self.rect)
class ball(object):
def __init__(self, x, y, side):
self.rect = pygame.Rect(x, y, side, side)
def draw(self, win):
pygame.draw.rect(win, (255,255,255), self.rect)
完整示例：
import pygame
import time
pygame.init()
screenW = 800
screenH = 600
win = pygame.display.set_mode((screenW, screenH))
pygame.display.set_caption("Pong")
clock = pygame.time.Clock()
font = pygame.font.SysFont("comicsans", 20)
paddleW = 20
paddleH = 100
ballSpeed = 15
class paddle(object):
def __init__(self, x, y, width, height):
self.rect = pygame.Rect(x, y, width, height)
def draw(self, win):
pygame.draw.rect(win, (255,255,255), self.rect)
class ball(object):
def __init__(self, x, y, side):
self.rect = pygame.Rect(x, y, side, side)
def draw(self, win):
pygame.draw.rect(win, (255,255,255), self.rect)
def redrawGameWindow():
win.fill((0,0,0))
paddleLeft.draw(win)
paddleRight.draw(win)
theBall.draw(win)
pygame.display.update()
#Main Loop:
paddleLeft = paddle(10, screenH//2, paddleW, paddleH)
paddleRight = paddle(screenW - 10 - paddleW, screenH//2, paddleW, paddleH)
theBall = ball(screenW//2, screenH//2, 30)
run = True
while run:
clock.tick(30)
for event in pygame.event.get():
if event.type == pygame.QUIT:
run = False
keys = pygame.key.get_pressed()
if keys[pygame.K_UP]:
print("left up")
print(paddleRight.rect.y)
paddleRight.rect.y -= ballSpeed
elif keys[pygame.K_DOWN]:
print("left down")
print(paddleRight.rect.y)
paddleRight.rect.y += ballSpeed
elif keys[pygame.K_w]:
print("right up")
print(paddleLeft.rect.y)
paddleLeft.rect.y -= ballSpeed
elif keys[pygame.K_s]:
print("right down")
print(paddleLeft.rect.y)
paddleLeft.rect.y += ballSpeed
redrawGameWindow()
pygame.quit()
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