爱心代码咯----还缺女朋友吗？（2）

import random
 
from math import sin, cos, pi, log
 
from tkinter import *
 
CANVAS_WIDTH = 640  # 宽
 
CANVAS_HEIGHT = 480  # 高
 
CANVAS_CENTER_X = CANVAS_WIDTH / 2
 
CANVAS_CENTER_Y = CANVAS_HEIGHT / 2
 
IMAGE_ENLARGE = 11  # 放大比例
 
HEART_COLOR = "#ff1943"
 
 
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)
 
    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 2 * (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)
 
        for _ in range(4000):
            x, y = random.choice(point_list)
 
            x, y = scatter_inside(x, y, 0.17)
 
            self._center_diffusion_points.add((x, y))
 
    @staticmethod
    def calc_position(x, y, ratio):
 
        # 调整缩放比例
 
        force = 1 / (((x - CANVAS_CENTER_X) ** 2 + (y - CANVAS_CENTER_Y) ** 2) ** 0.520)  # 魔法参数
 
        dx = ratio * force * (x - CANVAS_CENTER_X) + random.randint(-1, 1)
 
        dy = ratio * force * (y - CANVAS_CENTER_Y) + random.randint(-1, 1)
 
        return x - dx, y - dy
 
    def calc(self, generate_frame):
 
        ratio = 10 * curve(generate_frame / 10 * pi)  # 圆滑的周期的缩放比例
 
        halo_radius = int(4 + 6 * (1 + curve(generate_frame / 10 * pi)))
 
        halo_number = int(3000 + 4000 * abs(curve(generate_frame / 10 * pi) ** 2))
 
        all_points = []
 
        # 光环
 
        heart_halo_point = set()  # 光环的点坐标集合
 
        for _ in range(halo_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, shrink_ratio=11.6)  # 魔法参数
 
            x, y = shrink(x, y, halo_radius)
 
            if (x, y) not in heart_halo_point:
                # 处理新的点
 
                heart_halo_point.add((x, y))
 
                x += random.randint(-14, 14)
 
                y += random.randint(-14, 14)
 
                size = random.choice((1, 2, 2))
 
                all_points.append((x, y, size))
 
        # 轮廓
 
        for x, y in self._points:
            x, y = self.calc_position(x, y, ratio)
 
            size = random.randint(1, 3)
 
            all_points.append((x, y, size))
 
        # 内容
 
        for x, y in self._edge_diffusion_points:
            x, y = self.calc_position(x, y, ratio)
 
            size = random.randint(1, 2)
 
            all_points.append((x, y, size))
 
        for x, y in self._center_diffusion_points:
            x, y = self.calc_position(x, y, ratio)
 
            size = random.randint(1, 2)
 
            all_points.append((x, y, size))
 
        self.all_points[generate_frame] = all_points
 
    def render(self, render_canvas, render_frame):
 
        for x, y, size in self.all_points[render_frame % self.generate_frame]:
            render_canvas.create_rectangle(x, y, x + size, y + size, width=0, fill=HEART_COLOR)
 
 
def draw(main: Tk, render_canvas: Canvas, render_heart: Heart, render_frame=0):
    render_canvas.delete('all')
 
    render_heart.render(render_canvas, render_frame)
 
    main.after(160, draw, main, render_canvas, render_heart, render_frame + 1)
 
 
if __name__ == '__main__':
    root = Tk()  # 一个Tk
 
    canvas = Canvas(root, bg='black', height=CANVAS_HEIGHT, width=CANVAS_WIDTH)
 
    canvas.pack()
 
    heart = Heart()  # 心
 
    draw(root, canvas, heart)
 
    root.mainloop()