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我已經擴展pygame.Rect
與我的Ball
類。當我使用nstanceOfBall.colliderect()
(第66行)時,不會引發錯誤,但它永遠不會返回true。深入瞭解爲什麼colliderect
不適用於我的Ball實例?從超類通過子類的Python調用方法不按預期工作
import sys, pygame
import os
import ball
import random
import math
#from ball import Ball
###############################################################################################
class Ball(pygame.Rect):
def __init__(self, x, y, width, height, screenWidth, screenHeight):
super(pygame.Rect,self).__init__(x, y, width, height)
self.floatX=x
self.floatY=x
self.screenWidth=screenWidth
self.screenHeight=screenHeight
self.speed=[random.random()*5-2.5, random.random()*5-2.5]
def runLogic(self):
self.floatX+=self.speed[0]
self.floatY+=self.speed[1]
if self.floatX+16<0: self.floatX=self.screenWidth
if self.floatX>self.screenWidth: self.floatX=-16
if self.floatY+16<0: self.floatY=self.screenHeight
if self.floatY>self.screenHeight: self.floatY=-16
self.x=self.floatX
self.y=self.floatY
###############################################################################################
os.environ['SDL_VIDEO_WINDOW_POS'] = "%d,%d" % (700, 200)#1680,1440)
pygame.init()
size = width, height = 320, 240
white = 255, 255, 255
blue=0,0,255
screen = pygame.display.set_mode(size)
image = pygame.image.load("ball.png")
ballRect=image.get_rect()
balls = []
for x in range(0, 100):
balls.append(Ball(random.random()*width, random.random()*height, ballRect.width, ballRect.height, width, height))
lastFrameStartTime=pygame.time.get_ticks()
while 1:
for event in pygame.event.get():
if event.type == pygame.QUIT:
sys.exit()
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_ESCAPE:
sys.exit()
for ball in balls:
ball.runLogic()
for ball2 in balls:
if ball != ball2:
if ball.colliderect(ball2):
print("collision detected!")
balls.pop(balls.index(ball))
balls.pop(balls.index(ball2))
#balls.remove(ball2)
screen.fill(blue)
for ball in balls:
screen.blit(image, ball)
pygame.display.flip()
pygame.time.wait(33-(pygame.time.get_ticks()-lastFrameStartTime))
lastFrameStartTime=pygame.time.get_ticks()
在Ball.init採用超(球,個體經營),而不是超(pygame.Rect,個體經營)並獲得成功。
謝謝。
在'Ball .__ init__'中,你應該調用'super(Ball,self)'而不是'super(pygame.Rect,self)''。請參閱[超級文檔](http://docs.python.org/2/library/functions.html#super)。 – 2013-04-20 00:29:51
謝謝!那樣做了。 ballInstance.colliderect不符合要求。 – user2301013 2013-04-20 00:44:32
@NCao你應該做出答案,以便可以接受。 – Keith 2013-04-20 05:16:27