情人节必备，动态爱心python源码，附效果图

# encoding: utf-8 import random import time from math import sin, cos, pi, log,tan from tkinter import * ############参数修改##################### 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 = "#CC1443" # 心的颜色 WINDOWS_TITLE = '爱心' # 窗口标题 HEART_CENTER_TEXT = '永远爱你' # 中间文字 HEART_CENTER_TEXT_COLOR = '#FFD700' # 中间文字颜色 #################爱心函数######################## def heart_function(t, shrink_ratio: float = IMAGE_ENLARGE): # 基础函数 x = 14.6 * (sin(t) ** 3) y = -(14.5 * cos(t) - 4 * cos(2 * t) - 2 * cos(3 * t) - 0.5 * 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) #################爱心内部的扩散情况######################## #调整beta可以调整扩散情况 def scatter_inside(x, y, beta=0.15): 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 #################抖动情况######################## def shrink(x, y, ratio): 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 #################爱心跳动函数######################## # https://cubic-bezier.com/ 贝塞尔参数网站，参考值为： curve(p, (.4, .5, .2, .6)) def heart_curve(p): return curve(p, (.4, .5, .2, .6)) # 爱心的贝塞尔曲线参数 #################光环跳动函数######################## # https://cubic-bezier.com/ 贝塞尔参数网站，参考值为： curve(p, (.73,.55,.59,.92)) def heart_halo_curve(p): return curve(p, (.73,.55,.59,.92)) #光环的贝塞尔曲线参数 #################跳动模式的调整######################## def curve(p, b): t = sin(p) p0 = b[0] p1 = b[1] p2 = b[2] p3 = b[3] t1 = (1 - t) t2 = t1 * t1 t3 = t2 * t1 # 贝塞尔模式 # r = p0 * t3 + 3 * p1 * t * t2 + 3 * p2 * t * t * t1 + p3 * (t ** 3) # 三角函数模式 r = 2 * (2 * sin(4 * p)) / (2 * pi) return r #################创建一个心的类######################## class Heart: 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) # 初始的点数，不宜过大 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) 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, 0.24) # 调整爱心的散点数量，参考值：0.24 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) ** 0.47) # 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 * heart_curve(generate_frame / 10 * pi) # 圆滑的周期的缩放比例 halo_radius = int(4 + 6 * (1 + heart_halo_curve(generate_frame / 10 * pi))) halo_number = int(3000 + 4000 * abs(heart_halo_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) x, y = heart_function(t, shrink_ratio=heart_halo_curve(generate_frame / 10 * pi) + 11) x, y = shrink(x, y, halo_radius) if (x, y) not in heart_halo_point: heart_halo_point.add((x, y)) random_int_range = int(27 + heart_halo_curve(generate_frame / 10 * pi) * 4) x += random.randint(-random_int_range, random_int_range) y += random.randint(-random_int_range, random_int_range) size = random.choice((1, 1, 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 frame_count(self): return self.generate_frame #################绘制函数######################## def draw(main: Tk, render_canvas_dict: dict, render_heart: Heart, render_frame=0): frame_index = render_frame % render_heart.frame_count() last_frame_index = (frame_index + render_heart.frame_count() - 1) % render_heart.frame_count() if last_frame_index in render_canvas_dict: render_canvas_dict[last_frame_index].pack_forget() if frame_index not in render_canvas_dict: canvas = Canvas( main, bg='black', # 背景颜色 height=CANVAS_HEIGHT, width=CANVAS_WIDTH ) canvas.pack() render_heart.render(canvas, render_frame) canvas.create_text( CANVAS_CENTER_X, CANVAS_CENTER_Y, text=HEART_CENTER_TEXT, fill=HEART_CENTER_TEXT_COLOR, font=('楷体', 48, 'bold') # 字体 ) render_canvas_dict[frame_index] = canvas else: render_canvas_dict[frame_index].pack() main.after( 10, # 画面切换间隔时间 draw, main, render_canvas_dict, render_heart, render_frame + 1) if __name__ == '__main__': print('Waiting...') start_time = time.time() root = Tk() # 绘制Tk界面 root.title(WINDOWS_TITLE) canvas_dict = {} heart = Heart(40) # 40帧为最佳 draw(root, canvas_dict, heart) # 绘制 end_time = time.time() print('造爱耗时 {:.2f} 秒 :'.format(end_time - start_time)) root.mainloop()