python画动态爱心

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import random from math import sin, cos, pi, log from tkinter import *   CANVAS_WIDTH = 640  # 画布的宽 CANVAS_HEIGHT = 480  # 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 = 11  # 放大比例 HEART_COLOR = "#ff2121"  # 心的颜色，这个是中国红     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     """     # 可以尝试换其他的动态函数，达到更有力量的效果（贝塞尔？）     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)  # 开始画画~     root.mainloop()