如何解决Pygame 精灵跳跃时不动
我很困惑为什么我的精灵在跳跃时没有移动。我已经检查了几次并一遍又一遍地更改了我的代码,但没有运气。我的代码在下面,包含 3 个页面,第一个包含主循环,第二个包含播放器类,第三个包含一些游戏功能。
主要
import pygame
from player import Player
import game_functions as gf
import sys
import time
def run_game():
# Intialise the game and start the screen
pygame.init()
screen = pygame.display.set_mode((800,600))
pygame.display.set_caption("Amarcreep")
player = Player(screen)
# Main loop
while True:
# Navy screen
screen.fill((0,128))
for event in pygame.event.get():
# Check if user wants to quit
if event.type == pygame.QUIT:
sys.exit()
gf.responses(screen,player,event)
player.p_movements()
# Make the player appear
player.draw_player()
# Make the newly made screen visible
pygame.display.flip()
run_game()
玩家
import pygame
from pygame.sprite import Sprite
class Player(Sprite):
# Initialise the main player
def __init__(self,screen):
super(Player,self).__init__()
self.screen = screen
self.screen_rect = screen.get_rect()
# Specifying the position of the player at start
self.rect = pygame.Rect(0,30,30)
self.rect.centerx = self.screen_rect.centerx
self.rect.bottom = 590
self.moving_left = False
self.moving_right = False
self.moving_up = False
self.y = 30
self.y_ud = 5
def p_movements(self):
if self.moving_left and self.rect.x > 5:
self.rect.x -= 1
if self.moving_right and self.rect.x < 765:
self.rect.x += 1
if self.moving_up:
self.rect.y -= self.y
self.y -= 2
if self.y == -30:
self.moving_up = False
self.y = 30
self.rect.bottom = 590
pygame.time.delay(20)
def draw_player(self):
''' Draw the player on the screen'''
pygame.draw.rect(self.screen,(255,255,255),self.rect)
游戏功能
import pygame
def responses(screen,event):
''' Check for responses'''
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_UP:
player.moving_up = True
if event.key == pygame.K_LEFT:
player.moving_left = True
if event.key == pygame.K_RIGHT:
player.moving_right = True
elif event.type == pygame.KEYUP:
if event.key == pygame.K_LEFT:
player.moving_left = False
if event.key == pygame.K_RIGHT:
player.moving_right = False
解决方法
实际上,当您跳跃时,玩家会移动,但在“self.moving_up
”的情况下,由于pygame.time.delay(20)
而几乎不明显。
从您的代码中删除 delay
,但增加玩家的移动:
class Player(Sprite):
def p_movements(self):
if self.moving_left and self.rect.x > 5:
self.rect.x -= 5 # <---
if self.moving_right and self.rect.x < 765:
self.rect.x += 5 # <---
if self.moving_up:
self.rect.y -= self.y
self.y -= 2
if self.y == -30:
self.moving_up = False
self.y = 30
self.rect.bottom = 590
# pygame.time.delay(20) <--- DELETE
但是使用 pygame.time.Clock
来控制每秒帧数,从而控制游戏速度。
tick()
对象的方法 pygame.time.Clock
以这种方式延迟游戏,即循环的每次迭代消耗相同的时间段。见pygame.time.Clock.tick()
:
这个方法应该每帧调用一次。
def run_game():
# [...]
# Main loop
clock = pygame.time.Clock()
while True:
clock.tick(60)
# [...]
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