2022跨年烟花代码|用Python送你一场跨年烟花秀

import tkinter as tk
from PIL import Image, ImageTk
from time import time, sleep
from random import choice, uniform, randint
from math import sin, cos, radians

colors = ['red', 'blue', 'yellow', 'white', 'green', 'orange', 'purple', 'seagreen', 'indigo', 'cornflowerblue']
1
定义烟花类
class fireworks:
    def __init__(self, cv, idx, total, explosion_speed, x=0., y=0., vx=0., vy=0., size=2., color='red', lifespan=2, **kwargs):
        self.id = idx
        # 烟花绽放 x 轴
        self.x = x
        # 烟花绽放 x 轴
        self.y = y
        self.initial_speed = explosion_speed
        # 外放 x 轴速度
        self.vx = vx
        # 外放 y 轴速度
        self.vy = vy
        # 绽放的粒子数
        self.total = total
        # 已停留时间
        self.age = 0
        # 颜色
        self.color = colo
        # 画布
        self.cv = cv
        self.cid = self.cv.create_oval(x - size, y - size, x + size, y + size,
        fill=self.color)
        self.lifespan = lifespan

    def update(self, dt):
        self.age += dt
        # 粒子膨胀
        if self.alive() and self.expand():
            move_x = cos(radians(self.id * 360 / self.total)) * self.initial_speed
            move_y = sin(radians(self.id * 360 / self.total)) * self.initial_speed
            self.cv.move(self.cid, move_x, move_y)
            self.vx = move_x / (float(dt) * 1000)
        # 膨胀到最大下落
        elif self.alive():
            move_x = cos(radians(self.id * 360 / self.total))
            self.cv.move(self.cid, self.vx + move_x, self.vy + 0.5 * dt)
            self.vy += 0.5 * dt

        elif self.cid is not None:
            cv.delete(self.cid)
            self.cid = None

    def expand(self):
        return self.age <= 1.5

    def alive(self):
        return self.age <= self.lifespan

def ignite(cv):
    t = time()
    # 烟花列表
    explode_points = []
    wait_time = randint(10, 100)
    # 爆炸的个数
    numb_explode = randint(6, 10)
    for point in range(numb_explode):
        # 爆炸粒子列表
        objects = []
        # 爆炸 x 轴
        x_cordi = randint(50, 550)
        # 爆炸 y 轴
        y_cordi = randint(50, 150)
        speed = uniform(0.5, 1.5)
        size = uniform(0.5, 3)
        color = choice(colors)
        # 爆炸的绽放速度
        explosion_speed = uniform(0.2, 1)
        # 爆炸的粒子数半径
        total_particles = randint(10, 50)
        for i in range(1, total_particles):
            r = fireworks(cv, idx=i, total=total_particles, explosion_speed=explosion_speed, x=x_cordi, y=y_cordi,
                     vx=speed, vy=speed, color=color, size=size,
                     lifespan=uniform(0.6, 1.75))
            # 添加进粒子列表里
            objects.append(r)
        # 把粒子列表添加到烟花列表
        explode_points.append(objects)
    total_time = .0
    # 在 1.8 秒时间帧内保持更新
    while total_time < 1.8:
        # 让画面暂停 0.01s
        sleep(0.01)
        # 刷新时间
        tnew = time()
        t, dt = tnew, tnew - t
        # 遍历烟花列表
        for point in explode_points:
            # 遍历烟花里的粒子列表
            for item in point:
                # 更新时间
                item.update(dt)
        # 刷新页面
        cv.update()
        total_time += dt
    root.after(wait_time, ignite, cv)

if __name__ == "__main__":
    root = tk.Tk()
    # 绘制一个画布
    cv = tk.Canvas(root, height=400, width=600)
    # 背景图
    image = Image.open("bg.jpg")
    photo = ImageTk.PhotoImage(image)
    # 在画板上绘制一张图片
    cv.create_image(0, 0, image=photo, anchor='nw')
    cv.pack()
    root.protocol(close)
    root.after(100, ignite, cv)
    # 生成窗口
    root.mainloop()