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Question

我最近开始玩pygame，我想创建一个平铺字段，突出显示已被鼠标悬停的图块。为此，我使用了DirtySprite和LayeredDirty，因此只会绘制更新的图块。但是，当我运行代码时，FPS降至11，当我检查时，它始终是绘制的整个屏幕。这是我的代码：

import os,sys
import pygame
import OpenGL
from pygame.locals import *
from PIL import Image
import pygame, math, sys
from pygame.locals import *


TILE_SIZE = 128
screen = pygame.display.set_mode((1920, 1080))
screen_height = pygame.display.get_surface().get_height()
screen_width = pygame.display.get_surface().get_width()
background = pygame.Surface(screen.get_size())
background = background.convert()
background.fill((250, 250, 250))
X_TILES = screen_width/TILE_SIZE
Y_TILES = screen_height/TILE_SIZE

class Tiles(pygame.sprite.DirtySprite):
    ground = Image.open('grass20.png')
    select_rect = Image.open('Select_rect.png')
    fore = Image.open('grass20.png')
    fore.paste(select_rect,(0,0),select_rect)
    select_rect = fore
    del fore
    select_rect =select_rect.resize((TILE_SIZE,TILE_SIZE),Image.ANTIALIAS)
    ground =ground.resize((TILE_SIZE,TILE_SIZE),Image.ANTIALIAS)
    size = ground.size
    mode = ground.mode
    bytes = ground.tobytes()
    ground = pygame.image.fromstring(bytes,size,mode)
    size = select_rect.size
    mode = select_rect.mode
    bytes = select_rect.tobytes()
    select_rect = pygame.image.fromstring(bytes,size,mode)
    del size
    del mode
    del bytes
    def __init__(self,position):
        pygame.sprite.DirtySprite.__init__(self)
        self.rect = pygame.Rect(self.ground.get_rect())
        self.rect.topleft=position
        self.coords = (position[0]/TILE_SIZE,position[1]/TILE_SIZE)
        self.image = self.ground

    def update(self, hit_list):
        if hit_list != self:
            if self.image == self.select_rect:
                self.dirty = 1
                self.image = self.ground
            else:
                self.dirty = 0
        elif self.image != self.select_rect:
                self.dirty = 1
                self.image = self.select_rect
        else: self.dirty = 0
        #print self.dirty, self.coords

class Mouse_pos(pygame.sprite.Sprite):
    def __init__(self):
        pygame.sprite.Sprite.__init__(self)
        self.rect = pygame.Rect((0,0),(1,1))

####
pygame.display.init()
clock = pygame.time.Clock()
city.set_position(screen_width/2,screen_height/2)
tiles = []
for x in xrange(X_TILES):
    for y in xrange(Y_TILES):
        tiles.append(Tiles((x*TILE_SIZE,y*TILE_SIZE)))
Tile_group = pygame.sprite.LayeredDirty(*tiles)
Tile_group.clear(screen,background)
del tiles
Tile_group.draw(screen)
mouse_pos = Mouse_pos()
tiles = []
while 1:
    clock.tick(60)
    for event in pygame.event.get():
        if not hasattr(event, 'key'): 
            continue
        down = event.type == KEYDOWN # key down or up?
        if event.key == K_ESCAPE: sys.exit(0) # quit the game
    mouse_pos.rect.center = pygame.mouse.get_pos()
    collided_tile = pygame.sprite.spritecollideany(mouse_pos,Tile_group)
    Tile_group.update(collided_tile)
    allsprites = Tile_group.draw(screen)
    pygame.display.update(allsprites)

当我检查脏瓷砖时，只有2个看起来很脏（应该是这样）。但是，当我打印allsprites Rect时，我总是得到(0,0,1920,1080)。为什么整个屏幕都重新粉刷，而不仅仅是更新的瓷砖？

更新

我打印时：

print [a.rect for a in Tile_group if a.dirty == 1]

和

print allsprites

我得到不同的结果; a.rect打印返回两个要更新的内容，但是allsprites会返回(0,0,1920,1080)

pygame LayeredDirty每次都重新绘制整个屏幕

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0 个答案: