利用Python绘制虎年烟花秀

目录

• 一、演示效果
• 二、python代码
• 三、前端代码

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(swww.cppcns.comound)

  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] *= ryhRdNXmulti
  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] fr Pause; [c] fr 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 = 编程客栈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.typ编程客栈e == 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(http://www.cppcns.com)
     
    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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