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Python - 如何加快pygame的流畅度?

转载 作者:行者123 更新时间:2023-11-28 17:14:02 28 4
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我想知道如何使用 pygam 加快我用 Python 编写的代码的流畅度。我猜我必须以某种方式提高效率?运行时,一些球在设定的区域内随机移动,但是,每个球的新位置一点也不平滑,每个运动之间都有一个跳跃,因为循环很慢。我该如何解决?或者对如何改进它有什么建议吗?到目前为止,这是我的代码:

import pygame
from pygame import *
import random
pygame.init()
size = width, height = 800, 600
screen = display.set_mode(size)
pygame.display.set_caption("Year 12: Ideal Gas Simulation")


BLACK = (0, 0, 0)
RED = (255, 0, 0)
BLUE = (0, 0, 255)
WHITE=(255,255,255)
GREEN = (0, 255, 0)
BALLX = 0
BALLY = 1
BALLSPEEDX = 2
BALLSPEEDY = 3
List=[]
radius=5

running=True
myClock=time.Clock()


myClock.tick(60)
def initBall():


for n in range(40):
ballx = random.randint(0, 800) # randomly setting the x position
bally = random.randint(0, 600) # randomly setting the y position
dirx = random.randint(-5,5) # randomly setting the x speed
diry = random.randint(-5,5) # randomly setting the y speed

data=[ballx, bally, dirx, diry]
List.append(data)
# returning a list with all the data the ball needs
return List # returning the list


def drawScreen(List):
draw.rect(screen, WHITE, (0, 0, 800, 600))
for x in range(40):
BALLX=List[x][0]
BALLY=List[x][1]
draw.circle(screen, GREEN, (BALLX,BALLY),radius)
display.flip()
pygame.draw.rect(screen, BLACK, (100-radius,100-radius,600+(2*radius),400+(2*radius)), 1)

f=pygame.font.SysFont(None,60)
text=f.render("PV=nRT",True,(0,0,0))
screen.blit(text,(300,height/20))


def moveBall(List):
for x in range(40):
BALLX=List[x][0]
BALLY=List[x][1]
SPEEDX=List[x][2]#####data[BALLX]== the first index of each list [x][0]
SPEEDY=List[x][3]##data[BALLSPEEDX]= List[x][2]
age=SPEEDX+BALLX
List[x][0]=age
# increases the position of the ball
plus=SPEEDY+BALLY
List[x][1]=plus
# checks to see if the ball is hitting the walls in the x direction
if BALLX > 700:
List[x][0] = 700#NORMALLY 800
third=List[x][2]
answer=third*-1
List[x][2]=answer
elif BALLX < 100:#NORMALLY 0
List[x][0] = 100
third=List[x][2]
answer=third*-1
List[x][2]=answer

# checks to see if the ball is hitting the walls in the y direction
if BALLY < 100:
List[x][1] = 100#NORMALLY 0
third=List[x][3]
answer=third*-1
List[x][3]=answer
elif BALLY > 500:
List[x][1] = 500#NORMALLY 600
third=List[x][3]
answer=third*-1
List[x][3]=answer
return List#return updated list


List=initBall()
while running==True:
for evnt in event.get():
if evnt.type==QUIT:
running=False
quit()
if evnt.type==MOUSEBUTTONDOWN:
mx,my=evnt.pos
button=evnt.button

drawScreen(List)
List=moveBall(List)

最佳答案

除了skrx的回答,还可以重构代码,避免大量重复调用。此外,直接索引 BALLS 数组可能会略微提高性能。

通常,避免使用大写字母命名函数内的变量。这些名称通常指定给在文件顶部定义的常量。

我想出的版本如下:

import array
import pygame
pygame.init()
import random

from pygame import *

size = WIDTH, HEIGHT = 800, 600
screen = display.set_mode(size)
pygame.display.set_caption("Year 12: Ideal Gas Simulation")


BLACK = (0, 0, 0)
RED = (255, 0, 0)
BLUE = (0, 0, 255)
WHITE = (255,255,255)
GREEN = (0, 255, 0)
BALLX = 0
BALLY = 1
BALLSPEEDX = 2
BALLSPEEDY = 3
RADIUS = 5

BALLS = []

myClock = time.Clock()

myClock.tick(60)
def initBalls():
for n in range(40):
props = array.array('i', [
random.randint(0, WIDTH),
random.randint(0, HEIGHT),
random.randint(-5, 5),
random.randint(-5, 5),
])
BALLS.append(props)


def drawScreen():
draw.rect(screen, WHITE, (0, 0, 800, 600))
props = (100-RADIUS, 100-RADIUS, 600+(2*RADIUS), 400+(2*RADIUS))
pygame.draw.rect(screen, BLACK, props, 1)
f = pygame.font.SysFont(None, 60)
text = f.render("PV=nRT", True,(0, 0, 0))
screen.blit(text,(300, HEIGHT / 20))
for i in range(len(BALLS)):
draw.circle(screen, GREEN, BALLS[i][:2],RADIUS)
display.flip()


def moveBalls():
for i in range(len(BALLS)):

if BALLS[i][0] > 700:
BALLS[i][0] = 700
BALLS[i][2] *= -1
elif BALLS[i][0] < 100:
BALLS[i][0] = 100
BALLS[i][2] *= -1
else:
BALLS[i][0] += BALLS[i][2]

if BALLS[i][1] < 100:
BALLS[i][1] = 100
BALLS[i][3] *= -1
elif BALLS[i][1] > 500:
BALLS[i][1] = 500
BALLS[i][3] *= -1
else:
BALLS[i][1] += BALLS[i][3]


def main():
initBalls()
while True:
for evnt in event.get():
if evnt.type == QUIT:
pygame.quit()
return
elif evnt.type == MOUSEBUTTONDOWN:
mx, my = evnt.pos
button = evnt.button

drawScreen()
moveBalls()


if __name__ == "__main__":
main()

关于Python - 如何加快pygame的流畅度?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/45390408/

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