利用Python绘制虎年烟花秀

一、演示效果

b站：虎年烟花演示

二、python代码

import pygame
from math import *
from pygame.locals import *

import random


class firew:
    
    def __init__(self, pos, color, light, size, move):
        self.pos = list(pos)
        self.color = list(color)
        self.light = light
        self.size = size
        
        self.move = list(move)
    
    def force(self, force):
        self.move[0] += force[0]
        self.move[1] += force[1]

        self.move[0] *= force[2]
        self.move[1] *= force[2]
    
    def update(self):
        self.pos[0] += self.move[0]
        self.pos[1] += self.move[1]

    def render(self, fenster, glitter):
        glitter = (glitter and random.randint(40, 100)/100) or 1
        c = rund( mult(self.color, self.light*glitter) )
        rad = int(round(self.light* self.size))
        rad += rad < 1
        #print(c)
        
        pygame.draw.circle(fenster, c, rund(self.pos), rad)
        

def summon(fws, pos, pre_move = [0,0]):
    mix.stop()
    #anz = random.randint(30, 250)
    anz = random.randint(200, 350)
    r = random.randint(0, 255)
    g = random.randint(0, 255)
    b = random.randint(0, 255)
    
        
    for i in range(anz):
        ang = random.randint(0, 360)        
        speed = random.randint(100, 1000) / 250
        
        move = (cos(radians(ang))*speed + pre_move[0],
                sin(radians(ang))*speed + pre_move[1])

        light = random.randint(60, 100)/100
        size = random.randint(100, 300)/100
        
        fws.append( firew(pos, (r,g,b), light, size, move) )

    # sound abspielen
    l, r = ( 0.2 + 0.8*(ww-pos[0])/ww, 0.2 + 0.8*pos[0]/ww )
    mix.set_volume(l, r)
    
    mix.play(sound)

    return fws


def rund(liste):
    new = []
    for i in liste:
        new.append(int(round(i)))
    
    return new

def mult(color, multi):
    new = list(color)
    new[0] *= multi
    new[1] *= multi
    new[2] *= multi
    
    return new


pygame.init()

sound = pygame.mixer.sound("firew.wav")
mix = pygame.mixer.channel(0)
mix.set_volume(1, 1)

bg = (0, 0, 0)
ww, wh = (1200, 800)
fenster = pygame.display.set_mode((ww, wh))
#pygame.display.set_caption("[leertaste] für pause; [c] für automatisches feuerwerk")


fws = [] # firework particles
rockets = []
force = [0, 0.02, 0.985]

max_counter = random.randint(0, 200)
counter = max_counter

auto  = true
pause = false

run = 1
clock = pygame.time.clock()

while run:
    pygame.display.set_caption("[spacebar] to pause; [c] disable automatic fireworks")
    counter -= (auto and not pause)

    if counter <= 0: # neues erstellen
        #pos = [random.randint(ww*1/4, ww*3/4), random.randint(wh*1/4, wh*3/5)]
        pos = [random.randint(ww*2/5, ww*3/5), wh]
        move = [random.randint(-100, 100)/100, -random.randint(800, 1500)/110]
        
        rockets.append( firew(pos, (255, 255, 255), 1, 2, move) )
        
        #fuse = random.randint(50, 150) # zuendschnur
        fuse = random.randint(50, 80)
        rockets[-1].fuse = fuse

        #fws = summon(fws, pos)
        
        max_counter = random.randint(10, 100)
        counter = max_counter

    for e in pygame.event.get():
        if e.type == quit:
            run = 0
        if e.type == keydown:
            if e.key == k_c:
                auto = not auto
            if e.key == k_space:
                pause = not pause
            if e.key == k_v:
                fws = []; rockets = []
            
        if e.type == mousebuttondown:
            fws = summon(fws, e.pos)
        

    fenster.fill(bg)
    dellist1 = []
    dellist2 = []

    for i, rocket in enumerate(rockets):
        if not pause:
            rocket.force(force)
            rocket.update()
            
        rocket.render(fenster, false)
        rocket.fuse -= not pause
        
        if rocket.fuse < 0:
            dellist1.append(i)
            # explosion erschaffen
            fws = summon(fws, rocket.pos, rocket.move)
            
    
    for i, f in enumerate(fws):
        if not pause:
            f.force(force)
            f.update()


        f.render(fenster, true and not pause)

        f.light -= (not pause) * random.randint(0, 150) / 7500

        if f.light < 0:
            dellist2.append(i)

    dellist1.reverse()
    dellist2.reverse()
    
    for d in dellist1:
        del rockets[d]
    for d in dellist2:
        del fws[d]

    pygame.display.update()
    clock.tick(80)


pygame.quit()

演示:

三、前端代码

效果：

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