C语言实现动态爱心代码
作者：Kk.巴扎嘿
这篇文章主要为大家详细介绍了如何通过C语言实现动态爱心的效果，文中的示例代码讲解详细，具有一定的学习价值，还不快跟随小编一起get李峋同款爱心代码
代码如下：
#include <stdio.h>
#include <math.h>
#include <windows.h>
#include <tchar.h>
float f(float x, float y, float z) {
float a = x * x + 9.0f / 4.0f * y * y + z * z - 1;
return a * a * a - x * x * z * z * z - 9.0f / 80.0f * y * y * z * z * z;
}
float h(float x, float z) {
for (float y = 1.0f; y >= 0.0f; y -= 0.001f)
if (f(x, y, z) <= 0.0f)
return y;
return 0.0f;
}
int main() {
HANDLE o = GetStdHandle(STD_OUTPUT_HANDLE);
_TCHAR buffer[25][80] = { _T(' ') };
_TCHAR ramp[] = _T(".:-=+*#%@");
for (float t = 0.0f;; t += 0.1f) {
int sy = 0;
float s = sinf(t);
float a = s * s * s * s * 0.2f;
for (float z = 1.3f; z > -1.2f; z -= 0.1f) {
_TCHAR* p = &buffer[sy++][0];
float tz = z * (1.2f - a);
for (float x = -1.5f; x < 1.5f; x += 0.05f) {
float tx = x * (1.2f + a);
float v = f(tx, 0.0f, tz);
if (v <= 0.0f) {
float y0 = h(tx, tz);
float ny = 0.01f;
float nx = h(tx + ny, tz) - y0;
float nz = h(tx, tz + ny) - y0;
float nd = 1.0f / sqrtf(nx * nx + ny * ny + nz * nz);
float d = (nx + ny - nz) * nd * 0.5f + 0.5f;
*p++ = ramp[(int)(d * 5.0f)];
}
else
*p++ = ' ';
}
}
for (sy = 0; sy < 25; sy++) {
COORD coord = { 0, sy };
SetConsoleCursorPosition(o, coord);
WriteConsole(o, buffer[sy], 79, NULL, 0);
}
Sleep(33);
}
}运行截图（动态效果下爱心形状会像呼吸一样起伏变化）：
补充
当然除了C语言，还可以通过Python或者JavaScript实现一些动态爱心效果，下面是小编为大家整理的一些示例代码，希望对大家有所帮助
python
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()
效果展示
JavaScript
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>hearts</title>
<style type="text/css">
* {
padding: 0;
margin: 0;
}
body {
background: #3498db;
overflow: hidden;
}
/**
* 主容器
*/
div#main {
width: 100vw;
height: 100vh;
}
/**
* 显示文字
*/
h1#text {
color: #FFF;
text-align: center;
}
/**
* heart标签的样式，一个红色的正方形，
* 将最终图像旋转45度，并置于缩小一半、半透明状态，
* 设置无限的动效
* 单次动效时间3s
*/
heart {
position: absolute;
width: 20px;
height: 20px;
background: #e74c3c;
transform: rotate(45deg) scale(.5);
opacity: .5;
animation-name: scale, opacity;
animation-duration: 3s;
animation-iteration-count: infinite;
}
/**
* 用伪类在heart之前画个圆并左移十像素
*/
heart::before {
position: absolute;
content: '';
width: 20px;
height: 20px;
background: #e74c3c;
border-radius: 50%;
transform: translateX(-10px);
}
/**
*用伪类在heart之后画个圆并上移十像素
*/
heart::after {
position: absolute;
content: '';
width: 20px;
height: 20px;
background: #e74c3c;
border-radius: 50%;
transform: translateY(-10px);
}
/**
* 跳动动效
*/
@keyframes scale {
25%,
75% {
transform: rotate(45deg) scale(1);
}
50%,
100% {
transform: rotate(45deg) scale(.5);
}
}
/**
* 改变透明度
*/
@keyframes opacity {
25%,
75% {
opacity: 1;
}
50%,
100% {
opacity: .5;
}
}
</style>
</head>
<body>
<div id="main">
<h1 id="text"></h1>
</div>
</body>
<script type="text/javascript">
//获取父容器
var mainObj = document.getElementById('main')
//获取文本容器
var textObj = document.getElementById('text')
//获取浏览器的高度
var innerWidth = document.body.clientWidth
var innerHeight = document.body.clientHeight
//计数器
var number = 0
/**
* 持续出心，直到数量为521，位置随机生成
*/
var interval = setInterval(function() {
var heart = document.createElement('heart')
heart.style.left = Math.floor(Math.random() * innerWidth) + 'px'
heart.style.top = Math.floor(Math.random() * innerHeight) + 'px'
mainObj.appendChild(heart)
number++
textObj.innerHTML = '送你' + number + '个爱心，请查收！'
//当心的数量达到521时结束
if (number >= 521) {
clearInterval(interval)
}
}, 50)
</script>
</html>效果展示
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