Pygame 玩家移动很奇怪
Pygame player movement is being weird
我正在做一个 pygame 项目,我做了一个方块移动,它会在每一帧召唤一个方块,并且只有一行方块。
我试着每帧都更新屏幕(因为我还没有),但这没有用。这是我的代码:
#Import Pygame
import pygame
#screen object(width, height)
screen_x = 750
screen_y = 600
screen = pygame.display.set_mode((screen_x, screen_y))
#Set the caption of the screen
pygame.display.set_caption('Game')
#Define a velocity, x, and y variable
velocity = 2.5x = 0.0y = 0.0
#Variable to keep our game loop running
running = True
#Game loop
while running:
# Initialing Color
color = (255,0,0)
if pygame.key.get_pressed()[pygame.K_w]:
y += 2.5
if pygame.key.get_pressed()[pygame.K_s]:
y -= 2.5
if pygame.key.get_pressed()[pygame.K_a]:
x -= 2.5
if pygame.key.get_pressed()[pygame.K_d]:
x += 2.5
# Drawing Rectangle
pygame.draw.rect(screen, color, pygame.Rect(x, y, 50, 50))
pygame.display.flip()
pygame.display.update()
# for loop through the event queue
for event in pygame.event.get():
# Check for QUIT event
if event.type == pygame.QUIT:
running = False
整个场景每一帧都重绘,所以你必须每一帧都清空显示:
import pygame
#screen object(width, height)
screen_x = 750
screen_y = 600
screen = pygame.display.set_mode((screen_x, screen_y))
#Set the caption of the screen
pygame.display.set_caption('Game')
#Define a velocity, x, and y variable
velocity = 2.5
x, y = 0, 0
color = (255,0,0)
clock = pygame.time.Clock()
running = True
while running:
clock.tick(100)
# for loop through the event queue
for event in pygame.event.get():
# Check for QUIT event
if event.type == pygame.QUIT:
running = False
keys = pygame.key.get_pressed()
x += (keys[pygame.K_d] - keys[pygame.K_a]) * velocity
y += (keys[pygame.K_s] - keys[pygame.K_w]) * velocity
# clear display
screen.fill((0, 0, 0))
# Drawing Rectangle
pygame.draw.rect(screen, color, pygame.Rect(x, y, 50, 50))
# update display
pygame.display.flip()
pygame.quit()
exit()
典型的 PyGame 应用程序循环必须:
- 限制每秒帧数以限制 CPU 使用
pygame.time.Clock.tick
- 通过调用
pygame.event.pump()
or pygame.event.get()
. 来处理事件
- 根据输入事件和时间(分别为帧)更新对象的游戏状态和位置
- 清除整个显示或绘制背景
- 绘制整个场景(
blit
所有对象)
- 通过调用
pygame.display.update()
or pygame.display.flip()
更新显示
解决方法很简单。你忘了用颜色填充屏幕。因为您的代码只是在每一帧都在屏幕表面绘制一个正方形,这就是它绘制一行正方形的原因。你必须在画东西之前填满屏幕,否则你会看到一个空白的屏幕,屏幕上有你填充表面的那种颜色。希望对你有帮助。
我正在做一个 pygame 项目,我做了一个方块移动,它会在每一帧召唤一个方块,并且只有一行方块。
我试着每帧都更新屏幕(因为我还没有),但这没有用。这是我的代码:
#Import Pygame
import pygame
#screen object(width, height)
screen_x = 750
screen_y = 600
screen = pygame.display.set_mode((screen_x, screen_y))
#Set the caption of the screen
pygame.display.set_caption('Game')
#Define a velocity, x, and y variable
velocity = 2.5x = 0.0y = 0.0
#Variable to keep our game loop running
running = True
#Game loop
while running:
# Initialing Color
color = (255,0,0)
if pygame.key.get_pressed()[pygame.K_w]:
y += 2.5
if pygame.key.get_pressed()[pygame.K_s]:
y -= 2.5
if pygame.key.get_pressed()[pygame.K_a]:
x -= 2.5
if pygame.key.get_pressed()[pygame.K_d]:
x += 2.5
# Drawing Rectangle
pygame.draw.rect(screen, color, pygame.Rect(x, y, 50, 50))
pygame.display.flip()
pygame.display.update()
# for loop through the event queue
for event in pygame.event.get():
# Check for QUIT event
if event.type == pygame.QUIT:
running = False
整个场景每一帧都重绘,所以你必须每一帧都清空显示:
import pygame
#screen object(width, height)
screen_x = 750
screen_y = 600
screen = pygame.display.set_mode((screen_x, screen_y))
#Set the caption of the screen
pygame.display.set_caption('Game')
#Define a velocity, x, and y variable
velocity = 2.5
x, y = 0, 0
color = (255,0,0)
clock = pygame.time.Clock()
running = True
while running:
clock.tick(100)
# for loop through the event queue
for event in pygame.event.get():
# Check for QUIT event
if event.type == pygame.QUIT:
running = False
keys = pygame.key.get_pressed()
x += (keys[pygame.K_d] - keys[pygame.K_a]) * velocity
y += (keys[pygame.K_s] - keys[pygame.K_w]) * velocity
# clear display
screen.fill((0, 0, 0))
# Drawing Rectangle
pygame.draw.rect(screen, color, pygame.Rect(x, y, 50, 50))
# update display
pygame.display.flip()
pygame.quit()
exit()
典型的 PyGame 应用程序循环必须:
- 限制每秒帧数以限制 CPU 使用
pygame.time.Clock.tick
- 通过调用
pygame.event.pump()
orpygame.event.get()
. 来处理事件
- 根据输入事件和时间(分别为帧)更新对象的游戏状态和位置
- 清除整个显示或绘制背景
- 绘制整个场景(
blit
所有对象) - 通过调用
pygame.display.update()
orpygame.display.flip()
更新显示
解决方法很简单。你忘了用颜色填充屏幕。因为您的代码只是在每一帧都在屏幕表面绘制一个正方形,这就是它绘制一行正方形的原因。你必须在画东西之前填满屏幕,否则你会看到一个空白的屏幕,屏幕上有你填充表面的那种颜色。希望对你有帮助。