2022虎年烟花代码

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(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：

四、完整源码

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