C语言实现动态爱心代码

  import random

  from math import sin, cos, pi, log

  from tkinter import *

  CANVAS_WIDTH = 1960 # 画布的宽

  CANVAS_HEIGHT = 1000 # 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()