pygame

    很久沒有發表博文，墮落了

    python是一門解釋型，交互式的，面向對象的編程語言，它集成模塊，異常，動態類型，很是高級的動態數據類型和類。 

pygame就是其中一個遊戲開發的模塊

    如下是我仿照甲魚寫的一個小型遊戲：

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


class Ball(pygame.sprite.Sprite):
    def __init__(self, image, position, speed, bg_size):
        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
        self.width, self.height = bg_size[0], bg_size[1]

    def move(self):
        self.rect = self.rect.move(self.speed)

        if self.rect.right < 0:
            self.rect.left = self.width

        elif self.rect.left > self.width:
            self.rect.right = 0

        elif self.rect.top > self.height:
            self.rect.bottom = 0

        elif self.rect.bottom < 0:
            self.rect.top = self.height
 
#碰撞檢測       
def collide_check(item, target):
    coll_balls = []
    for each in target:
        distance = math.sqrt\
                   (math.pow((item.rect.center[0] - each.rect.center[0]), 2) + \
                   math.pow((item.rect.center[1] - each.rect.center[1]), 2))
        if distance <= (item.rect.width + each.rect.width) / 2:
            coll_balls.append(each)

    return coll_balls

    
def main():
    pygame.init()
    pygame.mixer.init()

    ball_image = "gray_ball.png"
    bg_image = "background.png"

    running =True
    BALL_NUM = 6

    #添加背景音樂
    pygame.mixer.music.load("bg_music.ogg")
    pygame.mixer.music.set_volume(0.4)
    pygame.mixer.music.play()

    #添加音效,要使用的時候添加play（）方法
    cat_sound = pygame.mixer.Sound("cat.wav")
    dog_sound = pygame.mixer.Sound("dog.wav")
    hole_sound = pygame.mixer.Sound("hole.wav")
    laugh_sound = pygame.mixer.Sound("laugh.wav")
    loser_sound = pygame.mixer.Sound("loser.wav")
    winner_sound = pygame.mixer.Sound("winner.wav")
    #設置音量
    cat_sound.set_volume(0.8)
    dog_sound.set_volume(0.3)

    #音樂播放完時遊戲結束
    GAMEOVER = USEREVENT
    pygame.mixer.music.set_endevent(GAMEOVER)

    #基本設置
    bg_size = width, height = 1024, 666
    screen = pygame.display.set_mode(bg_size)
    pygame.display.set_caption("shengtaoWorld!")

    background = pygame.image.load(bg_image).convert_alpha()
    
    balls = []
    #實例化類
    for each in range(BALL_NUM):
        position = randint(0, width-100), randint(0, height-100)
        speed = [randint(-10, 10), randint(-10, 10)]
        ball = Ball(ball_image, position, speed, bg_size)
        #使球運行時
        while collide_check(ball, balls):
             ball.rect.left, ball.rect.top = randint(0, width-100), randint(0, height-100)
        balls.append(ball)

        clock = pygame.time.Clock()

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

            elif event.type == GAMEOVER:
                loser_sound.play()
                pygame.time.delay(2000)
                laugh_sound.play()
                running = False

            #鼠標檢測
            elif event.type == MOUSEBUTTONDOWN:
                if event.button == 1:
                    cat_sound.play()
                if event.button == 3:
                    dog_sound.play()
                if event.button == 2:
                    for i in range(8):
                        cat_sound.play()

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

        #試球運動
        for each in balls:
            each.move()
            screen.blit(each.image, each.rect)
        #
        for i in range(BALL_NUM):
            item = balls.pop(i)

            if collide_check(item, balls):
                item.speed[0] = -item.speed[0]
                item.speed[1] = -item.speed[1]

            balls.insert(i, item)

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


        

if __name__ == "__main__":
    main()