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) { 编程客栈_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; 编程客栈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_CEphpNTER_X) dy = ratio * force * (y - CANVAS_CENTER_www.devze.comY) 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android半、半透明状态, * 设置无限的动效 * 单次动效时间3s */ heart { position: absolute; 开发者_JAVA教程 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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