Shulou(Shulou.com)05/31 Report--

This article introduces the relevant knowledge of "how to use MFC in C++ to write Gobang game procedures". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

Introduction to MFC:

MFC (MicrosoftFoundationClasses) is the abbreviation of Microsoft basic class library. It is a C++ class library implemented by Microsoft. It mainly encapsulates most of the windows API functions. MFC is not only a class library, but also a framework. Create a new MFC project in vc++, and the development environment will automatically generate a lot of files for you, and it uses mfcxx.dll. Xx is the version, it encapsulates the mfc kernel, so you can't see the message loop in the original SDK programming in your code, because the MFC framework encapsulates it for you, so you can concentrate on the logic of your program, instead of these things that have to be repeated every time, but because it is a general framework, it does not have the best pertinence, of course, it loses some flexibility and efficiency. But the package of MFC is very shallow, so the loss of efficiency is not great.

Start the text

Brief introduction

After learning C++ MFC programming, I came up with the idea of writing a Gobang program. Admittedly, the interface might be much better if written in C #, but my main goal is not the interface but the algorithm, so I used VS's MFC to write the program.

Program characteristics

In the process of moving the mouse, there is a selection box to follow, and the chess position is fed back automatically in real time.

The position of the check box will only appear in the legal chess position (that is, at the intersection of chess lines and unplayed seats), so even if your mouse is not at the intersection of chess lines, the program will automatically feedback where the mouse is going to play chess in real time. This avoids misplay in the process of playing chess.

Provide repentance function

In order to further avoid mistakes and improve the usability of the program, the program also designs a repentance button (the program sets the maximum number of repentance to 1).

Provide a variety of chessboard sizes

The standard Gobang chessboard is 15x15. In order to provide a variety of chessboard sizes, this program also has two unconventional chessboards, 17x17 and 19x19.

Provide retrospective function

At the end of the game, the program will give the results of the review of the game, from which you can analyze the reasons for winning or losing the game.

Solved the problem that the MFC drawing window moved out of the screen and the image disappeared.

You can see the solution to the refresh problem in the complete code.

The code is relatively basic, and you only need to master the basic knowledge of MFC programming to realize it by yourself.

Because I am also a programming rookie, algorithm design is relatively basic and simple, only master the basic C++ programming knowledge can understand the code

Program realization

Step1: create a MFC dialog program project in VS.

(after it is created, you can directly copy the source code provided by me into the project and run it. If you have any problems, you can leave a message below.)

Step2: create a new class called CMainGobang and write the main code in the class

Here is all the code in the MainGobang. H header file:

Struct Pieces// chess piece judgment unit {bool bIsPieces;// whether there is already bool bIsBlack;// black or white int x strategy / piece location}; struct MyRectangle {int x memory y CMainGobang / check box core coordinates}; public: CMainGobang (void); ~ CMainGobang (void); private: / basic information int iSize;// board size parameter int xmax,xmin,ymax,ymin;// board size parameter int idx / / length per cell on the chessboard / count of pieces information int iPieces;// pieces / / the current count of pieces is the total number of iPieces-1 int iPiecesNum;// pieces Pieces * pPieces;// pieces / rectangle information int iRectangleNum;// check box number MyRectangle * pmyRectangle;// check box / for draw rectangle&draw pieces bool NoRectangle (int x camera int y); / / determine whether there is a check box bool NoPieces (int x light int y) in this position. / / determine whether there are any pieces in this position / for judge win bool IsBlack (int x instruction int y); / / determine the color of chess pieces in this position bool IsConnect (int iDir,int x paper int y); / / find connected pieces int ConnectNum (); / / return the number of connected pieces / for machine fight / / void MaConnectNum (int iConnectNum,int iDir); / / return the number of weakly connected pieces / iDir direction parameter int ConnectDir () / / return the direction of the connected pieces public: void DrawMainTable (CDC * pDC,CRect rect,int iTableSize); / / draw the board function void SetPieces (); / / set the parameter function / / separate the initialization code from the drawing board code void DrawRectangle (CDC * pDC,CPoint pt); / / draw the check box / return whether to draw void DrawPieces (CDC * pDC,CRect rect,CPoint pt); / / draw the chess board function bool ClearPieces (CDC * pDC,bool & bBlack) / / clear the chess piece function / for repentance void KeepPieces (CDC * pDC,CRect rect,int iTableSize); / / cycle draw chess pieces / / to solve the refresh problem void MachineDraw (CDC * pDC); / / Machine chess function bool Success (); / / judge victory function void ReplayMark (CDC * pDC); / / Review tag function

Add function implementation to MainGobang.cpp file

CMainGobang::CMainGobang (void) {} CMainGobang::~CMainGobang (void) {if (pPiecescrafts null) {delete [] pPieces; pPieces=NULL;} if (pmyRectangledisabled null) {delete [] pmyRectangle; pmyRectangle=NULL;}} / / draw the chessboard function / / you can add the chessboard size parameter / / control coordinates void CMainGobang::DrawMainTable (CDC * pDC,CRect rect,int iTableSize) {iSize=iTableSize; / / overwrite the background CRect Back; Back.top=rect.top+1; Back.bottom=rect.bottom-1; Back.left=rect.left+1 first Back.right=rect.right-1; pDC- > FillSolidRect (& Back,RGB (240240240)); / / fill / / calculate the length of each lattice idx= (rect.right-rect.left) / (iTableSize+1)) > ((rect.bottom-rect.top) / (iTableSize+1))? (rect.bottom-rect.top) / (iTableSize+1): (rect.right-rect.left) / (iTableSize+1); CBrush brush (RGB); CBrush * OldBrush=pDC- > SelectObject (& brush); int ixp,iyp;// chessboard star coordinates / / draw Tianyuan ixp= (rect.right-rect.left) / 2; iyp= (rect.bottom-rect.top) / 2; pDC- > Ellipse (ixp-3,iyp-3,ixp+3,iyp+3); / / draw star ixp-=4*idx; iyp-=4*idx / / upper left corner pDC- > Ellipse (ixp-3,iyp-3,ixp+3,iyp+3); lower left corner pDC- > Ellipse (ixp-3,iyp-3,ixp+3,iyp+3); lower right corner of ixp+=8*idx;// pDC- > Ellipse (ixp-3,iyp-3,ixp+3,iyp+3); upper right corner of iyp-=8*idx;// pDC- > Ellipse (ixp-3,iyp-3,ixp+3,iyp+3); pDC- > SelectObject (OldBrush); / / restore the original brush brush.DeleteObject () in the device environment / / release drawing resources / / calculate the size of the chessboard and place it in the middle of the window ymin= (rect.bottom-rect.top) / 2-(iTableSize-1) / 2roomidx; ymax=ymin+ (iTableSize-1) * idx; xmin= (rect.right-rect.left) / 2-(iTableSize-1) / 2roomidx; xmax=xmin+ (iTableSize-1) * idx; for (int xcaminominx MoveTo (xMagneymin); pDC- > LineTo (xMaginymax);} for (int ytimminting yMoveto (xmin,y) PDC- > LineTo (xmax,y);}}

Step3: write interface-related code in xxxx (the project name created by xxxx for you) Dlg.cpp

This step is mainly to write some code related to the interface.

The position feedback of this program is mainly added to the OnMouseMove function, as follows:

/ / Mouse movement function void CMyGobang_DHKDlg::OnMouseMove (UINT nFlags, CPoint point) {/ / TODO: add the message handler code and / or call the default value CPoint pt; CRect rect; GetDlgItem (IDC_MainTable)-> GetWindowRect (& rect) here; / / get the screen coordinates of the control GetCursorPos (& pt); / / convert the mouse click coordinates (screen coordinates) pt.x-=rect.left;// to the coordinates pt.y-=rect.top in the control CDC * pDC=picMain.GetDC (); / / get the canvas if (bIsReady) {gobang.DrawRectangle (pDC,pt);} CDialogEx::OnMouseMove (nFlags, point);}

Program interface

Open the program

The chess game is in progress

The chess game is over

"how to use MFC in C++ to write Gobang game program" content is introduced here, thank you for reading. If you want to know more about the industry, you can follow the website, the editor will output more high-quality practical articles for you!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.