# 开发时间： 2023/11/20 23:12
import math
import random
import threading
import time
from math import sin, cos, pi, log
from tkinter import *
import re
Fireworks = []
maxFireworks = 8
CANVAS_WIDTH = 1080 # 画布的宽
CANVAS_HEIGHT = 600 # 画布的高
CANVAS_CENTER_X = CANVAS_WIDTH / 2 # 画布中心的X轴坐标
CANVAS_CENTER_Y = CANVAS_HEIGHT / 2 # 画布中心的Y轴坐标
IMAGE_ENLARGE = 12 # 放大比例
HEART_COLOR = "pink" # 心的颜色
# 烟花类
class firework(object):
def __init__(self, color, speed, width, height):
# uid=uuid.uuid1()
self.radius = random.randint(2,3) # 粒子半径为2~3像素
self.color = color # 粒子颜色
self.speed = speed # speed是1.5-3.5秒
self.status = 0 # 在烟花未爆炸的情况下，status=0；爆炸后，status>=1；当status>100时，烟花的生命期终止
self.nParticle = random.randint(80, 100) # 粒子数量
self.center = [random.randint(0, width - 15), random.randint(0, height - 15)] # 烟花随机中心坐标
self.oneParticle = [] # 原始粒子坐标（100%状态时）
self.rotTheta = random.uniform(-1, 2 * math.pi) # 椭圆平面旋转角
# 椭圆参数方程：x=a*cos(theta),y=b*sin(theta)
# ellipsePara=[a,b]
self.ellipsePara = [random.randint(30, 40), random.randint(20, 30)]
theta = 2 * math.pi / self.nParticle
for i in range(self.nParticle):
t = random.uniform(-1.0 / 16, 1.0 / 16) # 产生一个 [-1/16,1/16) 的随机数
x, y = self.ellipsePara[0] * math.cos(theta * i + t), self.ellipsePara[1] * math.sin(
theta * i + t) # 椭圆参数方程
xx, yy = x * math.cos(self.rotTheta) - y * math.sin(self.rotTheta), y * math.cos(
self.rotTheta) + x * math.sin(self.rotTheta) # 平面旋转方程
self.oneParticle.append([xx, yy])
self.curParticle = self.oneParticle[0:] # 当前粒子坐标
self.thread = threading.Thread(target=self.extend) # 建立线程对象
def extend(self): # 粒子群状态变化函数线程
for i in range(100):
self.status += 1 # 更新状态标识
self.curParticle = [[one[0] * self.status / 100, one[1] * self.status / 100] for one in
self.oneParticle] # 更新粒子群坐标
time.sleep(self.speed / 50)
def explode(self):
self.thread.setDaemon(True) # 把现程设为守护线程
self.thread.start() # 启动线程
def __repr__(self):
return ('color:{color}'
''
'speed:{speed}'
''
'number of particle: {np}'
''
'center:[{cx} , {cy}]'
''
'ellipse:a={ea} , b={eb}'
''
'particle:'
'{p}'
''
).format(color=self.color, speed=self.speed, np=self.nParticle, cx=self.center[0], cy=self.center[1],
p=str(self.oneParticle), ea=self.ellipsePara[0], eb=self.ellipsePara[1])
def colorChange(fire):
rgb = re.findall(r'(.{2})', fire.color[1:])
cs = fire.status
f = lambda x, c: hex(int(int(x, 16) * (100 - c) / 30))[2:] # 当粒子寿命到70%时，颜色开始线性衰减
if cs > 70:
ccr, ccg, ccb = f(rgb[0], cs), f(rgb[1], cs), f(rgb[2], cs)
else:
ccr, ccg, ccb = rgb[0], rgb[1], rgb[2]
return '#{0:0>2}{1:0>2}{2:0>2}'.format(ccr, ccg, ccb)
def appendFirework(n=1): # 递归生成烟花对象
if n > maxFireworks or len(Fireworks) > maxFireworks:
pass
elif n == 1:
cl = '#{0:0>6}'.format(hex(int(random.randint(0, 16777215)))[2:]) # 产生一个0~16777215（0xFFFFFF）的随机数，作为随机颜色
a = firework(cl, random.uniform(1.5, 3.5), CANVAS_WIDTH, CANVAS_HEIGHT)
Fireworks.append({'particle': a, 'points': []}) # 建立粒子显示列表，‘particle’为一个烟花对象，‘points’为每一个粒子显示时的对象变量集
a.explode()
else:
appendFirework()
appendFirework(n - 1)
def show(c):
for p in Fireworks: # 每次刷新显示，先把已有的所以粒子全部删除
for pp in p['points']:
c.delete(pp)
for p in Fireworks: # 根据每个烟花对象，计算其中每个粒子的显示对象
oneP = p['particle']
if oneP.status == 100: # 状态标识为100，说明烟花寿命结束
Fireworks.remove(p) # 移出当前烟花
appendFirework() # 新增一个烟花
continue
else:
li = [[int(cp[0] * 2) + oneP.center[0], int(cp[1] * 2) + oneP.center[1]] for cp in
oneP.curParticle] # 把中心为原点的椭圆平移到随机圆心坐标上
color = colorChange(oneP) # 根据烟花当前状态计算当前颜色
for pp in li:
p['points'].append(
c.create_oval(pp[0] - oneP.radius, pp[1] - oneP.radius, pp[0] + oneP.radius, pp[1] + oneP.radius,
fill=color)) # 绘制烟花每个粒子
root.after(10, show, c) # 回调，每10ms刷新一次
def heart_function(t, shrink_ratio: float = IMAGE_ENLARGE):
"""
“爱心函数生成器”
:param shrink_ratio: 放大比例
:param t: 参数
:return: 坐标
"""
# 基础函数
x = 16 * (sin(t) ** 3)
y = -(13 * cos(t) - 5 * cos(2 * t) - 2 * cos(3 * t) - cos(4 * t))
# 放大
x *= shrink_ratio
y *= shrink_ratio
# 移到画布中央
x += CANVAS_CENTER_X
y += CANVAS_CENTER_Y
return int(x), int(y)
def scatter_inside(x, y, beta=0.15):
"""
随机内部扩散
:param x: 原x
:param y: 原y
:param beta: 强度
:return: 新坐标
"""
ratio_x = - beta * log(random.random())
ratio_y = - beta * log(random.random())
dx = ratio_x * (x - CANVAS_CENTER_X)
dy = ratio_y * (y - CANVAS_CENTER_Y)
return x - dx, y - dy
def shrink(x, y, ratio):
"""
抖动
:param x: 原x
:param y: 原y
:param ratio: 比例
:return: 新坐标
"""
force = -1 / (((x - CANVAS_CENTER_X) ** 2 + (y - CANVAS_CENTER_Y) ** 2) ** 0.6) # 这个参数...
dx = ratio * force * (x - CANVAS_CENTER_X)
dy = ratio * force * (y - CANVAS_CENTER_Y)
return x - dx, y - dy
def curve(p):
"""
自定义曲线函数，调整跳动周期
:param p: 参数
:return: 正弦
"""
return 4 * (2 * sin(4 * p)) / (2 * pi)
class Heart:
"""
爱心类
"""
def __init__(self, generate_frame=20):
self._points = set() # 原始爱心坐标集合
self._edge_diffusion_points = set() # 边缘扩散效果点坐标集合
self._center_diffusion_points = set() # 中心扩散效果点坐标集合
self.all_points = {} # 每帧动态点坐标
self.build(2000)
self.random_halo = 1000
self.generate_frame = generate_frame
for frame in range(generate_frame):
self.calc(frame)
def build(self, number):
# 爱心
for _ in range(number):
t = random.uniform(0, 2 * pi) # 随机不到的地方造成爱心有缺口
x, y = heart_function(t)
self._points.add((x, y))
# 爱心内扩散
for _x, _y in list(self._points):
for _ in range(3):
x, y = scatter_inside(_x, _y, 0.05)
self._edge_diffusion_points.add((x, y))
# 爱心内再次扩散
point_list = list(self._points)
