【终极超详细版】数字雨C语言代码

直接复制以下代码到编译器上运行便可看到超级炫酷的数字雨效果#includewindows.h#defineID_TIMER1#defineSTRMAXLEN25//一个显示列的最大长度#defineSTRMINLEN8//一个显示列的最小长度LRESULTCALLBACKWndProc(HWND,UINT,WPARAM,LPARAM);////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////typedefstructtagCharChain//整个当作屏幕的一个显示列,这是个双向列表{structtagCharChain*prev;//链表的前个元素TCHARch;//一个显示列中的一个字符structtagCharChain*next;//链表的后个元素}CharChain,*pCharChain;typedefstructtagCharColumn{CharChain*head,*current,*point;intx,y,iStrLen;//显示列的开始显示的x,y坐标,iStrLen是这个列的长度intiStopTimes,iMustStopTimes;//已经停滞的次数和必须停滞的次数,必须停滞的次数是随机的}CharColumn,*pCharColumn;intmain(HINSTANCEhInstance,HINSTANCEhPrevInstance,PSTRszCmdLine,intiCmdShow){staticTCHARszAppName[]=TEXT(matrix);HWNDhwnd;MSGmsg;WNDCLASSwndclass;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(此程序必须运行在NT下!),szAppName,MB_ICONERROR);return0;}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);//最大化显示UpdateWindow(hwnd);ShowCursor(FALSE);//隐藏鼠标光标srand((int)GetCurrentTime());//初始化随机数发生器while(GetMessage(&msg,NULL,0,0)){TranslateMessage(&msg);DispatchMessage(&msg);}ShowCursor(TRUE);//显示鼠标光标returnmsg.wParam;}TCHARrandomChar()//随机字符产生函数{return(TCHAR)(rand()%(126-33)+33);//33到之间}intinit(CharColumn*cc,intcyScreen,intx)//初始化{intj;cc-iStrLen=rand()%(STRMAXLEN-STRMINLEN)+STRMINLEN;//显示列的长度cc-x=x+3;//显示列的开始显示的x坐标cc-y=rand()%3?rand()%cyScreen:0;//显示列的开始显示的y坐标cc-iMustStopTimes=rand()%6;cc-iStopTimes=0;cc-head=cc-current=(pCharChain)calloc(cc-iStrLen,sizeof(CharChain));//生成显示列for(j=0;jcc-iStrLen-1;j++){cc-current-prev=cc-point;//cc-point一个显示列的前个元素cc-current-ch='\0';cc-current-next=cc-current+1;//cc-current+1一个显示列的后个元素cc-point=cc-current++;//cc-point=cc-current;cc-current++;}cc-current-prev=cc-point;//最后一个节点cc-current-ch='\0';cc-current-next=cc-head;cc-head-prev=cc-current;//头节点的前一个为此链的最后一个元素cc-current=cc-point=cc-head;//free掉申请的内存要用current当参数cc-head-ch=randomChar();//对链表头的元素填充return0;}LRESULTCALLBACKWndProc(HWNDhwnd,UINTmessage,WPARAMwParam,LPARAMlParam){HDChdc;//ctn用来确定一个显示链是否向下前进,如果等待次数超过必须等待的次数,ctn就代表要向下前进inti,j,temp,ctn;//j为一个显示链中除链表头外的在屏幕上显示的y坐标,temp绿色过度到黑色之用staticHDChdcMem;HFONThFont;staticHBITMAPhBitmap;staticintcxScreen,cyScreen;//屏幕的宽度高度.staticintiFontWidth=10,iFontHeight=15,iColumnCount;//字体的宽度高度,列数staticCharColumn*ccChain;switch(message){caseWM_CREATE:cxScreen=GetSystemMetrics(SM_CXSCREEN);//屏幕宽度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);//创建字体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);//设置背景模式为透明iColumnCount=cxScreen/(iFontWidth*3/2);//屏幕所显示字母雨的列数ccChain=(pCharColumn)calloc(iColumnCount,sizeof(CharColumn));for(i=0;iiColumnCount;i++){init(ccChain+i,cyScreen,(iFontWidth*3/2)*i);}return0;caseWM_TIMER:hdc=GetDC(hwnd);PatBlt(hdcMem,0,0,cxScreen,cyScreen,BLACKNESS);//将内存设备映像刷成黑色for(i=0;iiColumnCount;i++){ctn=(ccChain+i)-iStopTimes++(ccChain+i)-iMustStopTimes;//(ccChain+i)-point=(ccChain+i)-head;//point用于遍历整个显示列//第一个字符显示为白色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;//遍历整个显示列,将这个显示列里的字符从下往上显示temp=0;//temp绿色过度到黑色之用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;elsecontinue;(ccChain+i)-y+=iFontHeight;//下次开始显示的y坐标为当前的y坐标加上一个字符的高度//如果开始显示的y坐标减去整个显示列的长度超过了屏幕的高度if((ccChain+i)-y-(ccChain+i)-iStrLen*iFontHeightcyScreen){free((ccChain+i)-current);init(ccChain+i,cyScreen,(iFontWidth*3/2)*i);}//链表的头为此链表的前个元素,因为下次开始显示的时候就相当与在整个显示列的开头添加个元素,然后在开始往上显示(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);return0;caseWM_RBUTTONDOWN:KillTimer(hwnd,ID_TIMER);return0;caseWM_RBUTTONUP:SetTimer(hwnd,ID_TIMER,10,NULL);return0;//处理善后工作caseWM_KEYDOWN:caseWM_LBUTTONDOWN:caseWM_DESTROY:KillTimer(hwnd,ID_TIMER);DeleteObject(hBitmap);DeleteDC(hdcM