在我的游戏中有一个地形生成器，随后产生了许多实例..但我实现了一个代码：
for b in blocklist:
if b.rect.left>=0:
if b.rect.right<=640:
screen.blit(b.sprite, b.rect)
因此它只在scree（400-500）块内渲染事物，并且它仍然运行，好像它渲染全部2000左右。那么我做错了什么？它与
有什么关系吗？pygame.display.update() #or
pygame.display.flip()
他们的差别是什么？
以下是代码：
#Init stuff
import pygame,random
from pygame.locals import *
from collections import namedtuple
import time, string
pygame.mixer.init(frequency=22050, size=-16, channels=2, buffer=500)
f=open('texdir.txt','r')
texdir=f.read()
f.close()
f=open(texdir+"\\splash.txt",'r')
splash=f.read()
splash=splash.replace('(','')
splash=splash.replace(')','')
splash=splash.split(',')
f.close()
splashlen=len(splash)
chc=random.randint(0,int(splashlen))
splash=splash[chc-1]
f=open(texdir+"//backcolor.txt")
pygame.init()
clock=pygame.time.Clock()
screen=pygame.display.set_mode((640,480))
pygame.display.set_caption("PiBlocks | By Sam Tubb")
max_gravity = 100
blocksel=texdir+"\\dirt.png"
btype='block'
backimg = pygame.image.load(texdir+"\\menu.png").convert()
backimg = pygame.transform.scale(backimg, (640,480))
clsimg = pygame.image.load("clear.bmp").convert()
clsimg = pygame.transform.scale(clsimg, (640,480))
ingame=0
sbtn=pygame.image.load("startbtn.png").convert()
qbtn=pygame.image.load("quitbtn.png").convert()
tbtn=pygame.image.load("texbtn.png").convert()
sbtnrect=sbtn.get_rect()
sbtnrect.x=220
sbtnrect.y=190
qbtnrect=qbtn.get_rect()
qbtnrect.x=220
qbtnrect.y=225
tbtnrect=tbtn.get_rect()
tbtnrect.x=220
tbtnrect.y=260
go=0
gotime=35
select=1
colliding = False
Move = namedtuple('Move', ['up', 'left', 'right'])
player=[]
blocklist=[]
font=pygame.font.Font(None,18)
#set cursor
curs = pygame.image.load(texdir+"\\cursor.png").convert()
curs.set_colorkey((0,255,0))
#set backcolor
COLOR=f.read()
f.close()
COLOR=COLOR.replace('(','')
COLOR=COLOR.replace(')','')
COLOR=COLOR.split(',')
c1=COLOR[0]
c2=COLOR[1]
c3=COLOR[2]
#load sounds
place=pygame.mixer.Sound('sound\\place.wav')
place2=pygame.mixer.Sound('sound\\place2.wav')
place3=pygame.mixer.Sound('sound\\place3.wav')
#set sprites and animation frames
psprite = pygame.image.load(texdir+"\\player\\playr.png").convert()
psprite.set_colorkey((0,255,0))
psprite2 = pygame.image.load(texdir+"\\player\\playr2.png").convert()
psprite2.set_colorkey((0,255,0))
psprite3 = pygame.image.load(texdir+"\\player\\playr3.png").convert()
psprite3.set_colorkey((0,255,0))
anim=1
class Block(object):
def __init__(self,x,y,sprite,btype):
if blocksel==texdir+"\\woodslab.png":
self.btype='slab'
self.sprite = pygame.image.load(sprite).convert()
self.rect = self.sprite.get_rect(top=y+16, left=x)
else:
self.btype='block'
self.sprite = pygame.image.load(sprite).convert_alpha()
self.rect = self.sprite.get_rect(top=y, left=x)
class Player(object):
sprite=psprite
def __init__(self, x, y):
self.rect = self.sprite.get_rect(centery=y, centerx=x)
# indicates that we are standing on the ground
# and thus are "allowed" to jump
self.on_ground = True
self.xvel = 0
self.yvel = 0
self.jump_speed = 7
self.move_speed = 3
def update(self, move, blocks):
# check if we can jump
if move.up and self.on_ground:
self.yvel -= self.jump_speed
# simple left/right movement
if move.left:
self.xvel = -self.move_speed
if move.right:
self.xvel = self.move_speed
# if in the air, fall down
if not self.on_ground:
self.yvel += 0.3
# but not too fast
if self.yvel > max_gravity: self.yvel = max_gravity
# if no left/right movement, x speed is 0, of course
if not (move.left or move.right):
self.xvel = 0
# move horizontal, and check for horizontal collisions
self.rect.left += self.xvel
self.collide(self.xvel, 0, blocks)
# move vertically, and check for vertical collisions
self.rect.top += self.yvel
self.on_ground = False;
self.collide(0, self.yvel, blocks)
def collide(self, xvel, yvel, blocks):
# all blocks that we collide with
for block in [blocks[i] for i in self.rect.collidelistall(blocks)]:
# if xvel is > 0, we know our right side bumped
# into the left side of a block etc.
if xvel > 0:
self.rect.right = block.rect.left
if xvel < 0:
self.rect.left = block.rect.right
# if yvel > 0, we are falling, so if a collision happpens
# we know we hit the ground (remember, we seperated checking for
# horizontal and vertical collision, so if yvel != 0, xvel is 0)
if yvel > 0:
self.rect.bottom = block.rect.top
self.on_ground = True
self.yvel = 0
# if yvel < 0 and a collision occurs, we bumped our head
# on a block above us
if yvel < 0: self.rect.top = block.rect.bottom
def get_key():
while 1:
event = pygame.event.poll()
if event.type == KEYDOWN:
return event.key
else:
pass
def display_box(screen, message):
"Print a message in a box in the middle of the screen"
fontobject = pygame.font.Font(None,18)
pygame.draw.rect(screen, (0,0,0),
((screen.get_width() / 2) - 100,
(screen.get_height() / 2) - 10,
200,20), 0)
pygame.draw.rect(screen, (255,255,255),
((screen.get_width() / 2) - 102,
(screen.get_height() / 2) - 12,
204,24), 1)
if len(message) != 0:
screen.blit(fontobject.render(message, 1, (255,255,255)),
((screen.get_width() / 2) - 100, (screen.get_height() / 2) - 10))
pygame.display.flip()
def ask(screen, question):
"ask(screen, question) -> answer"
pygame.font.init()
current_string = []
display_box(screen, question + ": " + string.join(current_string,""))
while 1:
inkey = get_key()
if inkey == K_BACKSPACE:
current_string = current_string[0:-1]
elif inkey == K_RETURN:
break
elif inkey == K_MINUS:
current_string.append("_")
elif inkey <= 127:
current_string.append(chr(inkey))
display_box(screen, question + ": " + string.join(current_string,""))
return string.join(current_string,"")
while True:
for block in blocklist:
if any(block.rect.colliderect(b.rect) for b in blocklist if b is not block):
if b.btype=='slab':
blocklist.remove(block)
else:
blocklist.remove(b)
if ingame==1:
screen.fill((int(c1),int(c2),int(c3)))
mse = pygame.mouse.get_pos()
key = pygame.key.get_pressed()
if key[K_a]:
anim+=1
if anim==9:
anim=1
if key[K_d]:
anim+=1
if anim==9:
anim=1
if key[K_1]:
blocksel=texdir+"\\dirt.png"
btype='block'
select=1
if key[K_2]:
blocksel=texdir+"\\stonetile.png"
btype='block'
select=2
if key[K_3]:
blocksel=texdir+"\\stone.png"
btype='block'
select=3
if key[K_4]:
blocksel=texdir+"\\sand.png"
btype='block'
select=4
if key[K_5]:
blocksel=texdir+"\\woodplank.png"
btype='block'
select=5
if key[K_6]:
blocksel=texdir+"\\woodslab.png"
btype='slab'
select=6
if key[K_LEFT]:
try:
for b in blocklist:
b.rect.left+=32
except:
pass
try:
player.rect.left+=32
except:
pass
if key[K_RIGHT]:
try:
for b in blocklist:
b.rect.left-=32
except:
pass
try:
player.rect.left-=32
except:
pass
if key[K_UP]:
try:
for b in blocklist:
b.rect.top+=32
except:
pass
try:
player.rect.top+=32
except:
pass
if key[K_DOWN]:
try:
for b in blocklist:
b.rect.top-=32
except:
pass
try:
player.rect.top-=32
except:
pass
if key[K_ESCAPE]:
execfile('PiBlocks.pyw')
for event in pygame.event.get():
if event.type == QUIT:
exit()
if event.type == MOUSEBUTTONDOWN:
if event.button==4:
if select<9:
select=select+1
else:
select=1
elif event.button==5:
if select>1:
select=select-1
else:
select=9
if select==1:
blocksel=texdir+"\\dirt.png"
btype='block'
if select==2:
blocksel=texdir+"\\stonetile.png"
btype='block'
if select==3:
blocksel=texdir+"\\stone.png"
btype='block'
if select==4:
blocksel=texdir+"\\sand.png"
btype='block'
if select==5:
blocksel=texdir+"\\woodplank.png"
btype='block'
if select==6:
blocksel=texdir+"\\woodslab.png"
btype='slab'
if key[K_LSHIFT]:
if event.type==MOUSEMOTION:
if not any(block.rect.collidepoint(mse) for block in blocklist):
snd=random.randint(1,3)
x=(int(mse[0]) / 32)*32
y=(int(mse[1]) / 32)*32
if go==1:
if snd==1:
place.play()
elif snd==2:
place2.play()
elif snd==3:
place3.play()
blocklist.append(Block(x,y,blocksel,btype))
if key[K_RSHIFT]:
if event.type==MOUSEMOTION:
to_remove = [b for b in blocklist if b.rect.collidepoint(mse)]
for b in to_remove:
if go==1:
blocklist.remove(b)
else:
if event.type == pygame.MOUSEBUTTONUP:
if event.button == 1:
to_remove = [b for b in blocklist if b.rect.collidepoint(mse)]
for b in to_remove:
if go==1:
blocklist.remove(b)
if not to_remove:
snd=random.randint(1,3)
x=(int(mse[0]) / 32)*32
y=(int(mse[1]) / 32)*32
if go==1:
if snd==1:
place.play()
elif snd==2:
place2.play()
elif snd==3:
place3.play()
blocklist.append(Block(x,y,blocksel,btype))
elif event.button == 3:
x=(int(mse[0]) / 32)*32
y=(int(mse[1]) / 32)*32
player=Player(x+16,y+16)
move = Move(key[K_w], key[K_a], key[K_d])
for b in blocklist:
if b.rect.left>=0:
if b.rect.right<=640:
screen.blit(b.sprite, b.rect)
if player:
player.update(move, blocklist)
if anim==1 or anim==2 or anim==3:
screen.blit(psprite, player.rect)
elif anim==4 or anim==5 or anim==6:
screen.blit(psprite2, player.rect)
elif anim==7 or anim==8 or anim==9:
screen.blit(psprite3, player.rect)
x=(int(mse[0]) / 32)*32
y=(int(mse[1]) / 32)*32
screen.blit(curs,(x,y))
clock.tick(60)
x=blocksel.replace(texdir,'')
x=x.replace('.png','')
vers=font.render('PiBlocks Alpha 0.6',True,(255,255,255))
tex=font.render('Selected Texture Pack: '+texdir,True,(255,255,255))
words=font.render('Selected Block: '+str(x), True, (255,255,255))
screen.blit(vers,(1,1))
screen.blit(tex,(1,12))
screen.blit(words,(1,25))
if gotime==0:
go=1
else:
gotime-=1
pygame.display.update()
elif ingame==0:
blocklist=[]
mse = pygame.mouse.get_pos()
player=[]
key = pygame.key.get_pressed()
text=font.render(splash, True, (255,255,255))
if key[K_RETURN]:
ingame=1
for event in pygame.event.get():
if event.type == QUIT:
exit()
if event.type == KEYDOWN:
print event.key
if sbtnrect.collidepoint(mse):
if pygame.mouse.get_pressed()==(1,0,0):
ingame='gen'
top=(random.randint(5,8)*32)
cen=(top+random.randint(4,6)*32)
down=15
across=0
blklvl=0
while across<1920:
while down>0:
screen.fill((0,0,0))
if blklvl==top:
blocklist.append(Block(across,blklvl,texdir+"\\grass.png",'block'))
if blklvl>top:
if blklvl<cen:
blocklist.append(Block(across,blklvl,texdir+"\\dirt.png",'block'))
if blklvl>cen-1:
blocklist.append(Block(across,blklvl,texdir+"\\stone.png",'block'))
down=down-1
blklvl=blklvl+32
if down==0:
if across<1920:
per=(across/(32/5))
if per>100:
per=100
top=(random.randint(5,8)*32)
cen=(top+random.randint(4,6)*32)
down=15
blklvl=0
across=across+32
down=15
drawgen=font.render('GENERATION:'+str(per)+'%%', True, (255,255,255))
screen.blit(drawgen,(1,1))
pygame.display.flip()
go=0
ingame=1
if qbtnrect.collidepoint(mse):
if pygame.mouse.get_pressed()==(1,0,0):
exit()
if tbtnrect.collidepoint(mse):
if pygame.mouse.get_pressed()==(1,0,0):
ingame='texsel'
screen.blit(backimg,(0,0))
screen.blit(text,(364,76))
screen.blit(sbtn,sbtnrect)
screen.blit(qbtn,qbtnrect)
screen.blit(tbtn,tbtnrect)
pygame.display.flip()
elif ingame=='texsel':
screen.blit(clsimg,(0,0))
inp = ask(screen, 'Texture Directory')
f=open('texdir.txt','w')
f.write(str(inp))
f.close()
pygame.display.flip()
execfile('PiBlocks.pyw')
非常感谢任何帮助
答案 0 :(得分：8)
代码运行缓慢，因为它是一堆非结构化代码（此 已清理的版本），它不断加载外部资源，读取事件和鼠标数据。