Python实现动态爱心操作步骤及源码

处理Python实现动态爱心操作步骤及源码这类问题时，先确认目标场景，再按步骤核对配置或玩法细节。

一、项目简介

这是一个用Python语言绘制的动态爱心图案，你❤动了吗？

编译器：PyCharm Community Edition

二、运行截图

三、代码思路

1、引入库文件random、math、tkinter

import randomfrom math import sin, cos, pi, logfrom tkinter import *

2、设置画布

CANVAS_WIDTH = 800 #画布宽800CANVAS_HEIGHT = 600 #画布长600CANVAS_CENTER_X = CANVAS_WIDTH / 2CANVAS_CENTER_Y = CANVAS_HEIGHT / 2IMAGE_ENLARGE = 11HEART_COLOR = "#dc143c" #ff2121 #引号内为爱心的颜色

3、生成爱心

def heart_function(t, shrink_ratio: float = IMAGE_ENLARGE):     x = 16 * (sin(t) ** 3)    y = -(13 * cos(t) - 5 * cos(2 * t) - 2 * cos(3 * t) - cos(4 * t))     x *= shrink_ratio    y *= shrink_ratio     x += CANVAS_CENTER_X    y += CANVAS_CENTER_Y     return int(x), int(y)

4、随机扩散

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

5、抖动

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

6、定义曲线函数和跳动周期

def curve(p):     return 5 * (2 * sin(4 * p)) / (2 * pi)

7、爱心的类

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)         self.random_halo = 1000         self.generate_frame = generate_frame        for frame in range(generate_frame):            self.calc(frame)     def build(self, number):         for _ in range(number):            t = random.uniform(0, 2 * pi)            x, y = heart_function(t)            self._points.add((x, y))          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))          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))

8、@classmethod 装饰类方法

 @staticmethod    def calc_position(x, y, ratio):         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 = []         heart_halo_point = set()        for _ in range(halo_number):            t = random.uniform(0, 2 * pi)            x, y = heart_function(t, shrink_ratio=11.6)            x, y = shrink(x, y, halo_radius)            if (x, y) not in heart_halo_point:                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))         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))         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    root.title("dotcpp.com")    canvas = Canvas(root, bg='black', height=CANVAS_HEIGHT, width=CANVAS_WIDTH)    canvas.pack()    heart = Heart()    draw(root, canvas, heart)    root.mainloop()

四、完整源码

import randomfrom math import sin, cos, pi, logfrom tkinter import *CANVAS_WIDTH = 800CANVAS_HEIGHT = 600CANVAS_CENTER_X = CANVAS_WIDTH / 2CANVAS_CENTER_Y = CANVAS_HEIGHT / 2IMAGE_ENLARGE = 11HEART_COLOR = "#dc143c"  # ff2121def heart_function(t, shrink_ratio: float = IMAGE_ENLARGE):    x = 16 * (sin(t) ** 3)    y = -(13 * cos(t) - 5 * cos(2 * t) - 2 * cos(3 * t) - cos(4 * t))    x *= shrink_ratio    y *= shrink_ratio    x += CANVAS_CENTER_X    y += CANVAS_CENTER_Y    return int(x), int(y)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 - dydef 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 - dydef curve(p):    return 5 * (2 * sin(4 * p)) / (2 * pi)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)        self.random_halo = 1000        self.generate_frame = generate_frame        for frame in range(generate_frame):            self.calc(frame)    def build(self, number):        for _ in range(number):            t = random.uniform(0, 2 * pi)            x, y = heart_function(t)            self._points.add((x, y))        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))        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):        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 = []        heart_halo_point = set()        for _ in range(halo_number):            t = random.uniform(0, 2 * pi)            x, y = heart_function(t, shrink_ratio=11.6)            x, y = shrink(x, y, halo_radius)            if (x, y) not in heart_halo_point:                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))        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))        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    root.title("dotcpp.com")    canvas = Canvas(root, bg='black', height=CANVAS_HEIGHT, width=CANVAS_WIDTH)    canvas.pack()    heart = Heart()    draw(root, canvas, heart)    root.mainloop()