python下pygame的烟花放送及代码解析

copy_left 2020-03-22

展开全文

烟花

python下pygame的烟花放送及代码解析

第1步：模块导入

import pygame, math, time, random, osfrom sys import exit

第2步：定义相关初始

win（窗口的w=宽，h=高）

WIN_W = 2200WIN_H = 1300

定义时间、显示、频率

t1 = 0.18 #时间流速show_n = 0show_frequency = 0.0015 #烟花绽放频率，数值越大频率越高

烟花颜色列表，下面随机抽出

color_list = [                [255, 50, 50],                [50, 255, 50],                [50, 50, 255],                [255, 255, 50],                [255, 50, 255],                [50, 255, 255],                [255, 255, 255]             ]

初始化pygame和音乐mixer

pygame.init()pygame.mixer.init()

创建一个窗口,pygame.RESIZABLE窗口大小可调节和标题

screen = pygame.display.set_mode((WIN_W, WIN_H),pygame.RESIZABLE, 32)pygame.display.set_caption('五彩烟花大放送')

背景音乐，可自定义

sound_wav = pygame.mixer.music.load('123.mp3')pygame.mixer.music.play()

Fireworks=烟花，定义主类

class Fireworks():    is_show = False    x, y = 0, 0    vy = 0    p_list = []    color = [0, 0, 0]    v = 0    def __init__(self, x, y, vy, n=300, color=[0, 255, 0], v=10):        self.x = x        self.y = y        self.vy = vy        self.color = color        self.v = v        for i in range(n):            self.p_list.append([random.random() * 2 * math.pi, 0, v * math.pow(random.random(), 1 / 3)])    def again(self):        self.is_show = True        self.x = random.randint(WIN_W // 2 - 350, WIN_W // 2 + 350)        self.y = random.randint(int(WIN_H / 2), int(WIN_H * 3 / 5))        self.vy = -40 * (random.random() * 0.4 + 0.8) - self.vy * 0.2        self.color = color_list[random.randint(0, len(color_list) - 1)].copy()        n = len(self.p_list)        self.p_list = []        for i in range(n):            self.p_list.append([random.random() * 2 * math.pi, 0, self.v * math.pow(random.random(), 1 / 3)])    def run(self):        global show_n        for p in self.p_list:            p[1] = p[1] + (random.random() * 0.6 + 0.7) * p[2]            p[2] = p[2] * 0.97            if p[2] < 1.2:                self.color[0] *= 0.9999                self.color[1] *= 0.9999                self.color[2] *= 0.9999            if max(self.color) < 10 or self.y>WIN_H+p[1]:                show_n -= 1                self.is_show = False                break        self.vy += 10 * t1        self.y += self.vy * t1

烟花列表

fk_list = []fk_list.append(Fireworks(300, 300, -20, n=100, color=[0, 255, 0], v=10))fk_list.append(Fireworks(300, 300, -20, n=200, color=[0, 0, 255], v=11))fk_list.append(Fireworks(300, 300, -20, n=200, color=[0, 0, 255], v=12))fk_list.append(Fireworks(300, 300, -20, n=500, color=[0, 0, 255], v=12))fk_list.append(Fireworks(300, 300, -20, n=600, color=[0, 0, 255], v=13))fk_list.append(Fireworks(300, 300, -20, n=700, color=[255, 0, 0], v=15))fk_list.append(Fireworks(300, 300, -20, n=800, color=[255, 255, 0], v=18))clock = pygame.time.Clock()

烟花放送的主循环：

# 游戏主循环while True:    if not pygame.mixer.music.get_busy():        pygame.mixer.music.play()    for event in pygame.event.get():        #pygame这个不能少，否则退出还在循环        if event.type == pygame.QUIT:            exit()    screen.fill((0, 0, 0))    # 放烟花    for i, fk in enumerate(fk_list):        if not fk.is_show:            fk.is_show = False            if random.random() < show_frequency * (len(fk_list) - show_n):                show_n += 1                fk.again()            continue        fk.run()        for p in fk.p_list:            x, y = fk.x + p[1] * math.cos(p[0]), fk.y + p[1] * math.sin(p[0])            if random.random() < 0.055:                screen.set_at((int(x), int(y)),(255,255,255))            else:                screen.set_at((int(x), int(y)), (int(fk.color[0]), int(fk.color[1]), int(fk.color[2])))    pygame.display.update()    time_passed = clock.tick(50)

效果图

python下pygame的烟花放送及代码解析