《點燃我，溫暖你》李峋愛心分析與復原（多語言）
阿新 • • 發佈：2022-12-05
前言
朋友圈被一個愛心刷屏了
雖然我不看劇，但是看到有程式就想瞅瞅
（順便看程式碼寫對沒）
額外多說幾句
最近我媽看一個叫《你安全嗎》的劇
雖然劇名很怪但是蠻嚴謹的
甚至網路攻擊維護都是用的Kali
劇中程式碼分析
找這一集花了我半個小時.....
這一波手寫程式碼蚌埠住了
寫程式碼用的VS，C++，全英VS竟然跳出了中文的錯誤提示，而且沒有報錯資訊。
（這句定義π的“constexpr double PI = 3.14159265358979323846264338327950288;”憋不住了，真就是默寫圓周率唄)
經典愛心函式666
效果還不錯，但是用HTML還原效果會更好吧...
程式碼展示
為了方便我的某個周姓同學我寫了一份python原始碼
程式碼框裡複製貼上就行
Python原始碼
import random from math import sin, cos, pi, log from tkinter import * CANVAS_WIDTH = 840 # 畫布的寬 CANVAS_HEIGHT = 680 # 畫布的高 CANVAS_CENTER_X = CANVAS_WIDTH / 2 # 畫布中心的X軸座標 CANVAS_CENTER_Y = CANVAS_HEIGHT / 2 # 畫布中心的Y軸座標 IMAGE_ENLARGE = 11 # 放大比例HEART_COLOR = "aquamarine" def heart_function(t, shrink_ratio: float = IMAGE_ENLARGE): """ “愛心函式生成器” :param shrink_ratio: 放大比例 :param t: 引數 :return: 座標 """ # 基礎函式 x = 17 * (sin(t) ** 3) y = -(16 * cos(t) - 5 * cos(2 * t) - 2 * cos(3 * t) - cos(3 * t)) # 放大 #x *= shrink_ratio #y *= shrink_ratio x*=IMAGE_ENLARGE y*=IMAGE_ENLARGE # 移到畫布中央 x += CANVAS_CENTER_X y += CANVAS_CENTER_Y return int(x), int(y) def scatter_inside(x, y, beta=0.15): """ 隨機內部擴散 :param x: 原x :param y: 原y :param beta: 強度 :return: 新座標 """ 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): """ 抖動 :param x: 原x :param y: 原y :param ratio: 比例 :return: 新座標 """ force = -1 / (((x - CANVAS_CENTER_X) ** 2 + (y - CANVAS_CENTER_Y) ** 2) ** 0.6) # 這個引數... dx = ratio * force * (x - CANVAS_CENTER_X) dy = ratio * force * (y - CANVAS_CENTER_Y) return x - dx, y - dy def curve(p): """ 自定義曲線函式，調整跳動週期 :param p: 引數 :return: 正弦 """ # 可以嘗試換其他的動態函式，達到更有力量的效果（貝塞爾？） return 2 * (2 * sin(4 * p)) / (2 * pi) class Heart: """ 愛心類 """ def __init__(self, generate_frame=20): self._points = set() # 原始愛心座標集合 self._edge_diffusion_points = set() # 邊緣擴散效果點座標集合 self._center_diffusion_points = set() # 中心擴散效果點座標集合 self.all_points = {} # 每幀動態點座標 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): # 愛心 for _ in range(number): t = random.uniform(0, 2 * pi) # 隨機不到的地方造成愛心有缺口 x, y = heart_function(t) self._points.add((x, y)) # 愛心內擴散 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)) # 愛心內再次擴散 point_list = list(self._points) for _ in range(10000): x, y = random.choice(point_list) x, y = scatter_inside(x, y, 0.27) self._center_diffusion_points.add((x, y)) @staticmethod def calc_position(x, y, ratio): # 調整縮放比例 force = 1 / (((x - CANVAS_CENTER_X) ** 2 + (y - CANVAS_CENTER_Y) ** 2) ** 0.420) # 魔法引數 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 = 15 * curve(generate_frame / 10 * pi) # 圓滑的週期的縮放比例 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 = [] # 光環 heart_halo_point = set() # 光環的點座標集合 for _ in range(halo_number): t = random.uniform(0, 2 * pi) # 隨機不到的地方造成愛心有缺口 x, y = heart_function(t, shrink_ratio=-15) # 魔法引數 x, y = shrink(x, y, halo_radius) if (x, y) not in heart_halo_point: # 處理新的點 #the pythin code by dianfenmian heart_halo_point.add((x, y)) x += random.randint(-60, 60) y += random.randint(-60, 60) size = random.choice((1, 1, 2)) all_points.append((x, y, size)) all_points.append((x+20, y+20, size)) all_points.append((x-20, y -20, size)) all_points.append((x+20, y - 20, size)) all_points.append((x - 20, y +20, size)) # 輪廓 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)) # 內容 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(1, draw, main, render_canvas, render_heart, render_frame + 1) if __name__ == '__main__': root = Tk() canvas = Canvas(root, bg='black', height=CANVAS_HEIGHT, width=CANVAS_WIDTH) canvas.pack() heart = Heart() draw(root, canvas, heart) root.mainloop()
Python有點麻煩
C語言原始碼
懶得寫了直接轉一個（？）
// 編譯環境：Mictosoft Visual Studio 2013,+EasyX_20200315(beta) #include<graphics.h> #include<conio.h> #include<time.h> #include<math.h> #include<sys/timeb.h> struct MyLove { int NUMS; // 編號 double m; double n; double size; bool Is_show; int x; int y; }; MyLove mylove[400]; int CenterX = 320; int CenterY = 180; double Size = 60; void initdata(); // 初始化資料 void updata(); // 更新 void movedata(); // 平移 void showdata(); // 顯示 int* GetRand(int* buf, int count, int range); // 隨機數的生成 void heart(int x0, int y0, int size, COLORREF C); void HpSleep(int ms); int main() { initgraph(640, 480); initdata(); BeginBatchDraw(); while (true) { updata(); showdata(); HpSleep(30); // 改為精確延時 FlushBatchDraw(); cleardevice(); } EndBatchDraw(); _getch(); return 0; } void updata() { int* buf = (int*)malloc(sizeof(int)* 20); buf = GetRand(buf, 20, (int)(2 * Size / 0.01)); movedata(); for (int i = 0; i < 20; i++) { mylove[i].m = buf[i] * 0.01; mylove[i].n = (((sin(buf[(int)i] * 0.01) * sqrt(fabs(cos(buf[(int)i] * 0.01)))) / (sin(buf[(int)i] * 0.01) + 1.4142)) - 2 * sin(buf[(int)i] * 0.01) + 2); mylove[i].size = Size; mylove[i].NUMS = i / 20; mylove[i].Is_show = true; mylove[i].x = (int)(-Size *mylove[i].n * cos(mylove[i].m) + CenterX); mylove[i].y = (int)(-Size *mylove[i].n * sin(mylove[i].m) + CenterY - mylove[i].size); } for (int i = 20; i < 400; i++) { mylove[i].size = mylove[i].size + 1; if (mylove[i].size>80) { mylove[i].size = 80; } mylove[i].NUMS = i / 20; mylove[i].x = (int)(-mylove[i].size *mylove[i].n * cos(mylove[i].m) + CenterX); mylove[i].y = (int)(-mylove[i].size *mylove[i].n * sin(mylove[i].m) + CenterY - mylove[i].size); } } void movedata() { for (int i = 399; i > 19; i--) { mylove[i] = mylove[i - 20]; } } void showdata() { settextcolor(RED); wchar_t c = 0x59; // 0x28 是電話機在 Wingdings 字型中的對應編碼 for (int i = 0; i < 400; i++) { settextstyle(mylove[i].NUMS + 10, 0, "Webdings"); setbkmode(TRANSPARENT); outtextxy(mylove[i].x + 20, mylove[i].y + 20, c); } } int* GetRand(int* buf, int count, int range) { struct timeb timeSeed; ftime(&timeSeed); srand(timeSeed.time * 1000 + timeSeed.millitm); // milli time for (int i = 0; i < count; i++) { int randTmp = rand() % range; for (int j = 0; j < i; j++) { if (buf[j] == randTmp) { break;//檢查重複。 } } buf[i] = randTmp; } return buf; } void initdata() { for (int i = 0; i < 400; i++) { mylove[i].NUMS = 0; mylove[i].m = 0; mylove[i].n = 0; mylove[i].size = 0; mylove[i].Is_show = false; mylove[i].x = 0; mylove[i].y = 0; } } // 精確延時函式(可以精確到 1ms，精度 ±1ms) // by yangw80<[email protected]>, 2011-5-4 void HpSleep(int ms) { static clock_t oldclock = clock(); // 靜態變數，記錄上一次 tick oldclock += ms * CLOCKS_PER_SEC / 1000; // 更新 tick if (clock() > oldclock) // 如果已經超時，無需延時 oldclock = clock(); else while (clock() < oldclock) // 延時 Sleep(1); // 釋放 CPU 控制權，降低 CPU 佔用率，精度 10~16ms // Sleep(0); // 更高精度、更高 CPU 佔用率，精度 1ms }
ArduinoC 硬體編寫
不用液晶屏
咱就用手裡的ESP32和8x8點陣
2個圖片一大一小迴圈播放即可