Yep | 李峋爱心代码 python、html+CSS+JavaScript实现

Yep | 李峋爱心代码 python、html+CSS+JavaScript实现【代码】Yep|李峋爱心代码python实现。

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一、python实现

        直接打开运行环境跑代码。

        效果图:动态滴

Yep | 李峋爱心代码 python、html+CSS+JavaScript实现

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 = "pink"  # 心的颜色
 
 
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
    """
    return 4 * (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)
 
        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)
            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(-11, 11)
                y += random.randint(-11, 11)
                size = random.choice((1, 2, 2))#控制外围粒子的大小
                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._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()


二、html+CSS+JavaScript实现

        桌面新建一个txt文档,复制下面代码,把.txt的后缀改为.html,然后双击文件运行就可以看到效果了。

        如果你的文档没有后缀,需要打开扩展名:此电脑—>(左上方)查看—>文件扩展名,勾一下方框。这时你去看所有的文件类型都多了后缀名。

<!DOCTYPE html>
<html>
  <head>
    <title></title>
    <script src="js/jquery.min.js"></script>
  </head>
  <style>
    * {
      padding: 0;
      margin: 0;
    }
    html,
    body {
      height: 100%;
      padding: 0;
      margin: 0;
      background: #000;
    }
 
    .aa {
      position: fixed;
      left: 50%;
      bottom: 10px;
      color: #ccc;
    }
 
    .container {
      width: 100%;
      height: 100%;
    }
    canvas {
      z-index: 99;
      position: absolute;
      width: 100%;
      height: 100%;
    }
  </style>
  <body>
    <!-- 樱花 -->
    <div id="jsi-cherry-container" class="container">
      <audio autoplay="autopaly">
        <source src="renxi.mp3" type="audio/mp3" />
      </audio>
      <img class="img" src="./123.png" alt="" />
      <!-- 爱心 -->
      <canvas id="pinkboard" class="container"> </canvas>
    </div>
 
  </body>
</html>
<script>
    /*
     * Settings
     */
    var settings = {
      particles: {
        length: 500, // maximum amount of particles
        duration: 2, // particle duration in sec
        velocity: 100, // particle velocity in pixels/sec
        effect: -0.75, // play with this for a nice effect
        size: 30, // particle size in pixels
      },
    };
 
    (function () {
      var b = 0;
      var c = ["ms", "moz", "webkit", "o"];
      for (var a = 0; a < c.length && !window.requestAnimationFrame; ++a) {
        window.requestAnimationFrame = window[c[a] + "RequestAnimationFrame"];
        window.cancelAnimationFrame =
          window[c[a] + "CancelAnimationFrame"] ||
          window[c[a] + "CancelRequestAnimationFrame"];
      }
      if (!window.requestAnimationFrame) {
        window.requestAnimationFrame = function (h, e) {
          var d = new Date().getTime();
          var f = Math.max(0, 16 - (d - b));
          var g = window.setTimeout(function () {
            h(d + f);
          }, f);
          b = d + f;
          return g;
        };
      }
      if (!window.cancelAnimationFrame) {
        window.cancelAnimationFrame = function (d) {
          clearTimeout(d);
        };
      }
    })();
 
    /*
     * Point class
     */
    var Point = (function () {
      function Point(x, y) {
        this.x = typeof x !== "undefined" ? x : 0;
        this.y = typeof y !== "undefined" ? y : 0;
      }
      Point.prototype.clone = function () {
        return new Point(this.x, this.y);
      };
      Point.prototype.length = function (length) {
        if (typeof length == "undefined")
          return Math.sqrt(this.x * this.x + this.y * this.y);
        this.normalize();
        this.x *= length;
        this.y *= length;
        return this;
      };
      Point.prototype.normalize = function () {
        var length = this.length();
        this.x /= length;
        this.y /= length;
        return this;
      };
      return Point;
    })();
 
    /*
     * Particle class
     */
    var Particle = (function () {
      function Particle() {
        this.position = new Point();
        this.velocity = new Point();
        this.acceleration = new Point();
        this.age = 0;
      }
      Particle.prototype.initialize = function (x, y, dx, dy) {
        this.position.x = x;
        this.position.y = y;
        this.velocity.x = dx;
        this.velocity.y = dy;
        this.acceleration.x = dx * settings.particles.effect;
        this.acceleration.y = dy * settings.particles.effect;
        this.age = 0;
      };
      Particle.prototype.update = function (deltaTime) {
        this.position.x += this.velocity.x * deltaTime;
        this.position.y += this.velocity.y * deltaTime;
        this.velocity.x += this.acceleration.x * deltaTime;
        this.velocity.y += this.acceleration.y * deltaTime;
        this.age += deltaTime;
      };
      Particle.prototype.draw = function (context, image) {
        function ease(t) {
          return --t * t * t + 1;
        }
        var size = image.width * ease(this.age / settings.particles.duration);
        context.globalAlpha = 1 - this.age / settings.particles.duration;
        context.drawImage(
          image,
          this.position.x - size / 2,
          this.position.y - size / 2,
          size,
          size
        );
      };
      return Particle;
    })();
 
    /*
     * ParticlePool class
     */
    var ParticlePool = (function () {
      var particles,
        firstActive = 0,
        firstFree = 0,
        duration = settings.particles.duration;
 
      function ParticlePool(length) {
        // create and populate particle pool
        particles = new Array(length);
        for (var i = 0; i < particles.length; i++)
          particles[i] = new Particle();
      }
      ParticlePool.prototype.add = function (x, y, dx, dy) {
        particles[firstFree].initialize(x, y, dx, dy);
 
        // handle circular queue
        firstFree++;
        if (firstFree == particles.length) firstFree = 0;
        if (firstActive == firstFree) firstActive++;
        if (firstActive == particles.length) firstActive = 0;
      };
      ParticlePool.prototype.update = function (deltaTime) {
        var i;
 
        // update active particles
        if (firstActive < firstFree) {
          for (i = firstActive; i < firstFree; i++)
            particles[i].update(deltaTime);
        }
        if (firstFree < firstActive) {
          for (i = firstActive; i < particles.length; i++)
            particles[i].update(deltaTime);
          for (i = 0; i < firstFree; i++) particles[i].update(deltaTime);
        }
 
        // remove inactive particles
        while (
          particles[firstActive].age >= duration &&
          firstActive != firstFree
        ) {
          firstActive++;
          if (firstActive == particles.length) firstActive = 0;
        }
      };
      ParticlePool.prototype.draw = function (context, image) {
        // draw active particles
        if (firstActive < firstFree) {
          for (i = firstActive; i < firstFree; i++)
            particles[i].draw(context, image);
        }
        if (firstFree < firstActive) {
          for (i = firstActive; i < particles.length; i++)
            particles[i].draw(context, image);
          for (i = 0; i < firstFree; i++) particles[i].draw(context, image);
        }
      };
      return ParticlePool;
    })();
 
    /*
     * Putting it all together
     */
    (function (canvas) {
      var context = canvas.getContext("2d"),
        particles = new ParticlePool(settings.particles.length),
        particleRate =
          settings.particles.length / settings.particles.duration, // particles/sec
        time;
 
      // get point on heart with -PI <= t <= PI
      function pointOnHeart(t) {
        return new Point(
          160 * Math.pow(Math.sin(t), 3),
          130 * Math.cos(t) -
            50 * Math.cos(2 * t) -
            20 * Math.cos(3 * t) -
            10 * Math.cos(4 * t) +
            25
        );
      }
 
      // creating the particle image using a dummy canvas
      var image = (function () {
        var canvas = document.createElement("canvas"),
          context = canvas.getContext("2d");
        canvas.width = settings.particles.size;
        canvas.height = settings.particles.size;
        // helper function to create the path
        function to(t) {
          var point = pointOnHeart(t);
          point.x =
            settings.particles.size / 2 +
            (point.x * settings.particles.size) / 350;
          point.y =
            settings.particles.size / 2 -
            (point.y * settings.particles.size) / 350;
          return point;
        }
        // create the path
        context.beginPath();
        var t = -Math.PI;
        var point = to(t);
        context.moveTo(point.x, point.y);
        while (t < Math.PI) {
          t += 0.01; // baby steps!
          point = to(t);
          context.lineTo(point.x, point.y);
        }
        context.closePath();
        // create the fill
        context.fillStyle = "#ea80b0";
        context.fill();
        // create the image
        var image = new Image();
        image.src = canvas.toDataURL();
        return image;
      })();
 
      // render that thing!
      function render() {
        // next animation frame
        requestAnimationFrame(render);
 
        // update time
        var newTime = new Date().getTime() / 1000,
          deltaTime = newTime - (time || newTime);
        time = newTime;
 
        // clear canvas
        context.clearRect(0, 0, canvas.width, canvas.height);
 
        // create new particles
        var amount = particleRate * deltaTime;
        for (var i = 0; i < amount; i++) {
          var pos = pointOnHeart(Math.PI - 2 * Math.PI * Math.random());
          var dir = pos.clone().length(settings.particles.velocity);
          particles.add(
            canvas.width / 2 + pos.x,
            canvas.height / 2 - pos.y,
            dir.x,
            -dir.y
          );
        }
 
        // update and draw particles
        particles.update(deltaTime);
        particles.draw(context, image);
      }
 
      // handle (re-)sizing of the canvas
      function onResize() {
        canvas.width = canvas.clientWidth;
        canvas.height = canvas.clientHeight;
      }
      window.onresize = onResize;
 
      // delay rendering bootstrap
      setTimeout(function () {
        onResize();
        render();
      }, 10);
    })(document.getElementById("pinkboard"));
  </script>
 
  <script>
    var RENDERER = {
      INIT_CHERRY_BLOSSOM_COUNT: 30,
      MAX_ADDING_INTERVAL: 10,
 
      init: function () {
        this.setParameters();
        this.reconstructMethods();
        this.createCherries();
        this.render();
        if (
          navigator.userAgent.match(
            /(phone|pod|iPhone|iPod|ios|Android|Mobile|BlackBerry|IEMobile|MQQBrowser|JUC|Fennec|wOSBrowser|BrowserNG|WebOS|Symbian|Windows Phone)/i
          )
        ) {
          // var box = document.querySelectorAll(".box")[0];
          // console.log(box, "移动端");
          // box.style.marginTop = "65%";
        }
      },
      setParameters: function () {
        this.$container = $("#jsi-cherry-container");
        this.width = this.$container.width();
        this.height = this.$container.height();
        this.context = $("<canvas />")
          .attr({ width: this.width, height: this.height })
          .appendTo(this.$container)
          .get(0)
        var rate = this.FOCUS_POSITION / (this.z + this.FOCUS_POSITION),
          x = this.renderer.width / 2 + this.x * rate,
          y = this.renderer.height / 2 - this.y * rate;
        return { rate: rate, x: x, y: y };
      },
      re
          }
        } else {
          this.phi += Math.PI / (axis.y == this.thresholdY ? 200 : 500);
          this.phi %= Math.PI;
        }
        if (this.y <= -this.renderer.height * this.SURFACE_RATE) {
          this.x += 2;
          this.y = -this.renderer.height * this.SURFACE_RATE;
        } else {
          this.x += this.vx;
          this.y += this.vy;
        }
        return (
          this.z > -this.FOCUS_POSITION &&
          this.z < this.FAR_LIMIT &&
          this.x < this.renderer.width * 1.5
        );
      },
    };
    $(function () {
      RENDERER.init();
    });
  </script>

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