draw | Pygame中文文档

zua

画的挺好，笔力硬朗，笔锋飘逸！

凑破

请问这个输出如何转变成postscript文件呢？

aaron.yang

为什么运行后不生成小球？

import pygame
import sys
from random import *
from pygame.locals import *

class Ball(pygame.sprite.Sprite):
    def __init__(self, image, position, speed):
        pygame.sprite.Sprite.__init__(self)

        self.image = pygame.image.load(image).convert_alpha()
        self.rect = self.image.get_rect()
        self.rect.left, self.rect.top = position
        self.speed = speed


def main():
    pygame.init()

    ball_image = "ball.png"
    bg_image = "map.png"

    running = True

    bg_size = width, height = 736, 334
    screen = pygame.display.set_mode(bg_size)
    pygame.display.set_caption("Play the ball")

    background = pygame.image.load(bg_image).convert_alpha()

    balls = []

    for i in range(5):
        position = randint(0, width - 45), randint(0, height - 45)
        speed = [randint(-10, 10), randint(-10, 10)]
        ball = Ball(ball_image, position, speed)
        balls.append(ball)


    clock = pygame.time.Clock()

    while running:
        for event in pygame.event.get():
            if event.type == QUIT:
                sys.exit()

        screen.blit(background, (0, 0))

        for each in balls:
            screen.blit(each.image, each.rect)

        pygame.display.flip()
        clock.tick(30)


if __name__ == "__main__":
    main()

hhhhhhy

aaron.yang 发表于 2020-3-17 20:05
为什么运行后不生成小球？

你这个生成了呀