黑客帝國-代碼雨


一黑客帝國-代碼雨

下載地址
http://www.tyyishundan.top/cmatrix-1.2a.tar.gz

    wget http://www.tyyishundan.top/cmatrix-1.2a.tar.gz
  • 也可手動下載

安裝

tar xf cmatrix-1.2a.tar.gz
cd cmatrix-1.2a
yum install -y ncurses-devel
./configure && make && make install
主要前面的點

使用


cmatrix

二 彩色字體特效

下載地址

http://www.tyyishundan.top/lolcat-master.zip

wget http://www.tyyishundan.top/lolcat-master.zip

unzip lolcat-master.zip

cd lolcat-master/bin/

 安裝

gem install lolcat

報錯 -bash: gem: 未找到命令

沒有下載安裝gem 直接yum下載安裝就好了

yum install -y gem

再次安裝就好了 

用法

使用|連接

例:

echo "I love you"|lolcat

輸出的I love you為彩色字體

三黑客帝國-代碼雨

【自制】

1.代碼(html):

<!DOCTYPE html>

<html>

<head>

    <title>黑客帝國效果</title>

</head>

 

<body>

<canvas id="canvas"></canvas>

<style type="text/css">

    body{margin: 0; padding: 0; overflow: hidden;}

</style>

<script type="text/javascript">

    var canvas = document.getElementById('canvas');

    var ctx = canvas.getContext('2d');

 

 

    canvas.height = window.innerHeight;

    canvas.width = window.innerWidth;

 

    var texts = '0123456789'.split('');

 

    var fontSize = 16;

    var columns = canvas.width/fontSize;

    // 用於計算輸出文字時坐標,所以長度即為列數

    var drops = [];

    //初始值

    for(var x = 0; x < columns; x++){

        drops[x] = 1;

    }

 

    function draw(){

        //讓背景逐漸由透明到不透明

        ctx.fillStyle = 'rgba(0, 0, 0, 0.05)';

        ctx.fillRect(0, 0, canvas.width, canvas.height);

        //文字顏色

        ctx.fillStyle = '#0F0';

        ctx.font = fontSize + 'px arial';

        //逐行輸出文字

        for(var i = 0; i < drops.length; i++){

            var text = texts[Math.floor(Math.random()*texts.length)];

            ctx.fillText(text, i*fontSize, drops[i]*fontSize);

 

            if(drops[i]*fontSize > canvas.height || Math.random() > 0.95){

                drops[i] = 0;

            }

 

            drops[i]++;

        }

    }

 

    setInterval(draw, 33);

</script>

</body>

2.c++實現方式:

代碼:

#include <windows.h>

#define ID_TIMER    1 

#define STRMAXLEN  25 //一個顯示列的最大長度 

#define STRMINLEN  8  //一個顯示列的最小長度

LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);

////////////////////////////////////////////////////////////////// 

////////////////////////////////////////////////////////////////// 

typedef struct tagCharChain //整個當作屏幕的一個顯示列,這是個雙向列表 

{

	struct tagCharChain *prev; //鏈表的前個元素 

	TCHAR  ch;                  //一個顯示列中的一個字符 

	struct tagCharChain *next; //鏈表的后個元素 

}CharChain, *pCharChain;

typedef struct tagCharColumn

{

	CharChain *head, *current, *point;

	int x, y, iStrLen; //顯示列的開始顯示的x,y坐標,iStrLen是這個列的長度 

	int iStopTimes, iMustStopTimes; //已經停滯的次數和必須停滯的次數,必須停滯的次數是隨機的 

}CharColumn, *pCharColumn;

int main(HINSTANCE hInstance, HINSTANCE hPrevInstance,

	PSTR szCmdLine, int iCmdShow)

{

	static TCHAR szAppName[] = TEXT("matrix");

	HWND            hwnd;

	MSG            msg;

	WNDCLASS    wndclass;

	wndclass.style = CS_HREDRAW | CS_VREDRAW;

	wndclass.lpfnWndProc = WndProc;

	wndclass.cbClsExtra = 0;

	wndclass.cbWndExtra = 0;

	wndclass.hInstance = hInstance;

	wndclass.hIcon = LoadIcon(NULL, IDI_APPLICATION);

	wndclass.hCursor = LoadCursor(NULL, IDC_ARROW);

	wndclass.hbrBackground = (HBRUSH)GetStockObject(BLACK_BRUSH);

	wndclass.lpszMenuName = NULL;

	wndclass.lpszClassName = szAppName;

	if (!RegisterClass(&wndclass))

	{

		MessageBox(NULL, TEXT("此程序必須運行在NT下!"), szAppName, MB_ICONERROR);

		return 0;

	}

	hwnd = CreateWindow(szAppName, NULL,

		WS_DLGFRAME | WS_THICKFRAME | WS_POPUP,

		0, 0,

		GetSystemMetrics(SM_CXSCREEN), GetSystemMetrics(SM_CYSCREEN),

		NULL, NULL, hInstance,

		NULL);

	ShowWindow(hwnd, SW_SHOWMAXIMIZED); //最大化顯示 

	UpdateWindow(hwnd);

	ShowCursor(FALSE); //隱藏鼠標光標 

 

	srand((int)GetCurrentTime()); //初始化隨機數發生器 

	while (GetMessage(&msg, NULL, 0, 0))

	{

		TranslateMessage(&msg);

		DispatchMessage(&msg);

	}

	ShowCursor(TRUE); //顯示鼠標光標 

	return msg.wParam;

}

TCHAR randomChar() //隨機字符產生函數 

{

	return (TCHAR)(rand() % (126 - 33) + 33); //33到126之間 

}

int init(CharColumn *cc, int cyScreen, int x) //初始化 

{

	int j;

	cc->iStrLen = rand() % (STRMAXLEN - STRMINLEN) + STRMINLEN; //顯示列的長度 

	cc->x = x + 3;        //顯示列的開始顯示的x坐標 

	cc->y = rand() % 3 ? rand() % cyScreen : 0; //顯示列的開始顯示的y坐標 

	cc->iMustStopTimes = rand() % 6;

	cc->iStopTimes = 0;

	cc->head = cc->current =

		(pCharChain)calloc(cc->iStrLen, sizeof(CharChain)); //生成顯示列 

	for (j = 0; j<cc->iStrLen - 1; j++)

	{

		cc->current->prev = cc->point; //cc->point一個顯示列的前個元素 

		cc->current->ch = '/0';

		cc->current->next = cc->current + 1; //cc->current+1一個顯示列的后個元素 

		cc->point = cc->current++; //cc->point = cc->current; cc->current++; 

	}

	cc->current->prev = cc->point; //最后一個節點 

	cc->current->ch = '/0';

	cc->current->next = cc->head;

	cc->head->prev = cc->current; //頭節點的前一個為此鏈的最后一個元素

	cc->current = cc->point = cc->head; //free掉申請的內存要用current當參數 

	cc->head->ch = randomChar(); // 對鏈表頭的 元素填充 

	return 0;

}

LRESULT CALLBACK WndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)

{

	HDC          hdc;

	//ctn 用來確定一個顯示鏈是否 向下前進,如果等待次數超過必須等待的次數,ctn就代表要向下前進 

	int i, j, temp, ctn; //j為一個顯示鏈中除鏈表頭外的在屏幕上顯示的y坐標,temp綠色過度到黑色之用 

	static  HDC hdcMem;

	HFONT    hFont;

	static  HBITMAP hBitmap;

	static  int cxScreen, cyScreen; //屏幕的寬度 高度. 

	static  int iFontWidth = 10, iFontHeight = 15, iColumnCount; //字體的寬度 高度, 列數 

	static  CharColumn *ccChain;

	switch (message)

	{

	case WM_CREATE:

		cxScreen = GetSystemMetrics(SM_CXSCREEN); //屏幕寬度 

		cyScreen = GetSystemMetrics(SM_CYSCREEN);

		SetTimer(hwnd, ID_TIMER, 10, NULL);

		hdc = GetDC(hwnd);

		hdcMem = CreateCompatibleDC(hdc);

		hBitmap = CreateCompatibleBitmap(hdc, cxScreen, cyScreen);

		SelectObject(hdcMem, hBitmap);

		ReleaseDC(hwnd, hdc);

		//創建字體 

		hFont = CreateFont(iFontHeight, iFontWidth - 5, 0, 0, FW_BOLD, 0, 0, 0,

			DEFAULT_CHARSET, OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS,

			DRAFT_QUALITY, FIXED_PITCH | FF_SWISS, TEXT("Fixedsys"));

		SelectObject(hdcMem, hFont);

		DeleteObject(hFont);

		SetBkMode(hdcMem, TRANSPARENT); //設置背景模式為 透明 

		iColumnCount = cxScreen / (iFontWidth * 3 / 2); //屏幕所顯示字母雨的列數

		ccChain = (pCharColumn)calloc(iColumnCount, sizeof(CharColumn));

		for (i = 0; i<iColumnCount; i++)

		{

			init(ccChain + i, cyScreen, (iFontWidth * 3 / 2)*i);

		}

		return 0;

	case WM_TIMER:

		hdc = GetDC(hwnd);

		PatBlt(hdcMem, 0, 0, cxScreen, cyScreen, BLACKNESS); //將內存設備映像刷成黑色 

		for (i = 0; i<iColumnCount; i++)

		{

			ctn = (ccChain + i)->iStopTimes++ >(ccChain + i)->iMustStopTimes;

			// 

			(ccChain + i)->point = (ccChain + i)->head; //point用於遍歷整個顯示列 

 

														//第一個字符顯示為 白色 

			SetTextColor(hdcMem, RGB(255, 255, 255));

			TextOut(hdcMem, (ccChain + i)->x, (ccChain + i)->y, &((ccChain + i)->point->ch), 1);

			j = (ccChain + i)->y;

			(ccChain + i)->point = (ccChain + i)->point->next;

			//遍歷整個顯示列,將這個顯示列里的字符從下往上顯示 

			temp = 0; //temp綠色過度到黑色之用 

			while ((ccChain + i)->point != (ccChain + i)->head && (ccChain + i)->point->ch)

			{

				SetTextColor(hdcMem, RGB(0, 255 - (255 * (temp++) / (ccChain + i)->iStrLen), 0));

				TextOut(hdcMem, (ccChain + i)->x, j -= iFontHeight, &((ccChain + i)->point->ch), 1);

				(ccChain + i)->point = (ccChain + i)->point->next;

			}

			if (ctn)

				(ccChain + i)->iStopTimes = 0;

			else continue;

			(ccChain + i)->y += iFontHeight; //下次開始顯示的y坐標 為當前的y坐標加上 一個字符的高度 

											 //如果開始顯示的y坐標減去 整個顯示列的長度超過了屏幕的高度 

			if ((ccChain + i)->y - (ccChain + i)->iStrLen*iFontHeight > cyScreen)

			{

				free((ccChain + i)->current);

				init(ccChain + i, cyScreen, (iFontWidth * 3 / 2)*i);

			}

			//鏈表的頭 為此鏈表的前個元素,因為下次開始顯示的時候 就相當與在整個顯示列的開頭添加個元素,然后在開始往上顯示 

			(ccChain + i)->head = (ccChain + i)->head->prev;

			(ccChain + i)->head->ch = randomChar();

		}

 

		BitBlt(hdc, 0, 0, cxScreen, cyScreen, hdcMem, 0, 0, SRCCOPY);

		ReleaseDC(hwnd, hdc);

		return 0;

	case WM_RBUTTONDOWN:

		KillTimer(hwnd, ID_TIMER);

		return 0;

	case WM_RBUTTONUP:

		SetTimer(hwnd, ID_TIMER, 10, NULL);

		return 0;

		//處理善后工作 

	case WM_KEYDOWN:

	case WM_LBUTTONDOWN:

	case WM_DESTROY:

		KillTimer(hwnd, ID_TIMER);

		DeleteObject(hBitmap);

		DeleteDC(hdcMem);

		for (i = 0; i<iColumnCount; i++)

		{

			free((ccChain + i)->current);

		}

		free(ccChain);

		PostQuitMessage(0);

		return 0;

	}

	return DefWindowProc(hwnd, message, wParam, lParam);

}


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