?? global.cpp
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/****************************************************
Author: S. Senthil kumar
File: Global.cpp
Purpose: For storing global information
******************************************************/
#include "OneMove.h"
#include "LastMove.h"
#include "Global.h"
#include "MusicPlayer.h"
#include "SearchAgent.h"
#include "myframe.h"
#include "TransTableEntry.h"
#include "TranspositionTable.h"
#include "myapp.h"
int end_of_game=0; //Boolean variable to indicate playing of game
int drawthinking=0; //Boolean variable to indicate whether thinking for a draw or just a normal move
int autoplay=0; //Boolean variable to indicate bg music autoplay turned on/off
int sndenable=0; //Boolean variable to indicate whether sounds for events enabled
CString defdir; //Default directory for music files. Current Directory+"sounds"
CString deflevel; //Default level
int computer_color=BLACK; //Default Computer playing color
int search_depth=5; //Default search depth (level: Intermediate)
int WHITEBASE=0; //White pieces at top of board
int BLACKBASE=7; //Black pieces at bottom
CString GetMusicDirectory(); //Retrieves Current Directory+"sounds"
int CheckCheck(int board[8][8],int target,int whilethinking=0);
UINT StartSearch(LPVOID param);
UINT Ponder(LPVOID param);
UINT RandomMusicPlay(LPVOID PARAM);
void AssignDefaults(int sndenable,int autoplay,CString deflevel,CString defdir,int ws,int blacks);
CStatusBarCtrl statusbar; //Statusbar of window
volatile int timeover=0; //Not used
volatile int searching=0; //To indicate whether searching for move. Used to disable certain menu items
int debug=0; //Flag variable
CWinThread * ponder_thread=NULL; //Pondering thread handle
int pondering=0; //Flag variable whether pondering
int threadrunning=0; //Not used
int firsttime=1; //First move. To play hardcoded pawn move
int movecount; //Total moves played.
int whiteking_stalemate=0; //Whether white king is under check currently. To check occurrence of stalemate
int blackking_stalemate=0; //Whether black king is under check currently. To check occurrence of stalemate
int music_play=1; //To control display of menuitem Play/Stop music
int BOARDSIZE=sizeof(int)*64; //Boardsize. Used in memcpy()
extern COLORREF WHITESQUARE; //Whitesquare color
extern COLORREF BLACKSQUARE; //Blacksquare color
TranspositionTable table; //Global Transpositiontable storing best moves for boards
char *filearray[50]; //Filearray used for Playing bg music
int count=0; //Just a loop variable
volatile int keep_music_playing=1; //Controlling bg music thread. Thread stops if set to 0
myapp a; //CWinApp object.
CString GetMusicDirectory()
{
char *buf=new char[defdir.GetLength()];
::GetShortPathName(defdir,buf,defdir.GetLength());
return (CString)buf;
}
/*Thread plays random files from GetMusicDirectory+"sounds"*/
UINT RandomMusicPlay(LPVOID PARAM)
{
CString type;
char lpszReturnString[10];
while (keep_music_playing)
{
//Getting a random filename from filearray
srand((unsigned int)time(NULL));
int val=rand()%count;
CString selectedfile=filearray[val];
selectedfile.MakeUpper();
//Getting file extension
int dotposn=selectedfile.ReverseFind('.');
if (dotposn!=-1)
{
CString ext=selectedfile.Mid((dotposn+1),3);
//Setting type according to extension
if (ext=="WAV")
{
type="waveaudio";
}
else if(ext=="RMI" || ext=="MID")
{
type="sequencer";
}
else if(ext=="CDA")
{
type="cdaudio";
}
statusbar.SetText((CString)"Playing "+selectedfile,2,0);
//Generating commandstring
CString commandstring="open "+GetMusicDirectory()+"\\"+selectedfile+" type "+type+" alias aria";
//Opening and playing using mciSendString()
int retval=mciSendString(commandstring,lpszReturnString, lstrlen(lpszReturnString), NULL);
mciSendString("play aria",lpszReturnString, lstrlen(lpszReturnString), NULL);
strcpy(lpszReturnString,"playing");
//Polling to see whether system is playing the file. Breaks from the loop on end of file.
while(1)
{
mciSendString("status aria mode",lpszReturnString,10,NULL);
if (strcmp(lpszReturnString,"playing")!=0)
{
break;
}
}
//Closing the resource.
mciSendString("close aria",lpszReturnString,lstrlen(lpszReturnString),NULL);
statusbar.SetText((CString)"Finished Playing "+selectedfile,2,0);
//Go back to top to select another file.
}
}
statusbar.SetText((CString)"Stopped Playing Music",2,SBT_NOBORDERS);
return 0;
}
/*
int CheckMate(int board[8][8])
{
debug=1;
SearchAgent s(0,board,2,13850,-13850);
char buf[255];
debug=0;
MessageBox(NULL,itoa(s.RetVal,buf,10),"",0);
if (s.RetVal>=5000)
{
MessageBox(NULL,"White Won","End of Game",0);
end_of_game=1;
return 1;
}
return 0;
}
*/
//Function to check whether target is in range of attack from another piece. Currently used by CheckForCheckMate for checking for a check against the king.
int InPieceRange(int board[8][8],int target)
{
int i,j,k;
int currentx,currenty;
int found=0;
int check=0;int checkmate=1;
//Get the board position of the target.
for (i=0;i<8 && !found;i++)
{
for (j=0;j<8;j++)
{
if (board[i][j]==target)
{
found=1;
break;
}
}
}
i--;
currenty=i;
currentx=j;
if (target==WHITE_KING)
{
//Checking along column, straight top
for (k=i-1;k>=0;k--)
{
if (board[k][j]<10 && board[k][j]!=0)
{
break;
}
else
{
if ( board[k][j]>10)
{
if ((board[k][j]==BLACK_KING) && k==i-1) return 1;
else if (board[k][j]==BLACK_ROOK || board[k][j]==BLACK_QUEEN)
{
return 1;
}
else
{
break;
}
}
}
}
//Checking along column, straight down
for (k=i+1;k<8;k++)
{
if (board[k][j]<10 && board[k][j]!=0)
{
break;
}
else
{
if ( board[k][j]>10)
{
if ((board[k][j]==BLACK_KING) && k==i+1) return 1;
else if (board[k][j]==BLACK_ROOK || board[k][j]==BLACK_QUEEN)
{
return 1;
}
else
{
break;
}
}
}
}
//Checking along row, along the right
for (k=j+1;k<8;k++)
{
if (board[i][k]<10 && board[i][k]!=0)
{
break;
}
else
{
if ( board[i][k]>10)
{
if ((board[i][k]==BLACK_KING) && k==j+1) return 1;
else if (board[i][k]==BLACK_ROOK || board[i][k]==BLACK_QUEEN)
{
return 1;
}
else
{
break;
}
}
}
}
//Checking along row, along the left.
for (k=j-1;k>=0;k--)
{
if (board[i][k]<10 && board[i][k]!=0)
{
break;
}
else
{
if ( board[i][k]>10)
{
if ((board[i][k]==BLACK_KING) && k==j-1) return 1;
else if (board[i][k]==BLACK_ROOK || board[i][k]==BLACK_QUEEN)
{
//MessageBox("First"+(CString)itoa(k,buf,10));
return 1;
}
else
{
break;
}
}
}
}
int m;
//Now search diagnols.
for (k=i-1,m=j-1;k>=0 && m>=0;k--,m--)
{
if (board[k][m]<10 && board[k][m]!=0)
{
break;
}
else
{
if (board[k][m]>10)
{
if ((board[k][m]==BLACK_KING) && k==i-1 && m==j-1) return 1;
else if (board[k][m]==BLACK_QUEEN || board[k][m]==BLACK_BISHOP)
{
return 1;
}
else
{
break;
}
}
}
}
for (k=i-1,m=j+1;k>=0 && m<8 ;k--,m++)
{
if (board[k][m]<10 && board[k][m]!=0)
{
break;
}
else
{
if (board[k][m]>10)
{
if ((board[k][m]==BLACK_KING) && k==i-1 && m==j+1) return 1;
else if (board[k][m]==BLACK_QUEEN || board[k][m]==BLACK_BISHOP)
{
return 1;
}
else
{
break;
}
}
}
}
for (k=i+1,m=j+1;k<8 && m<8;k++,m++)
{
if (board[k][m]<10 && board[k][m]!=0)
{
break;
}
else
{
if (board[k][m]>10)
{
if ((board[k][m]==BLACK_KING) && k==i+1 && m==j+1) return 1;
else if (board[k][m]==BLACK_PAWN)
{
if ((k==i+1) && (m==j+1))
{
return 1;
}
}
else if (board[k][m]==BLACK_QUEEN || board[k][m]==BLACK_BISHOP)
{
return 1;
}
else
{
break;
}
}
}
}
for (k=i+1,m=j-1;k<8 && m>=0;k++,m--)
{
if (board[k][m]<10 && board[k][m]!=0)
{
break;
}
else
{
if (board[k][m]>10)
{
if ((board[k][m]==BLACK_KING) && k==i+1 && m==j-1) return 1;
else if (board[k][m]==BLACK_PAWN)
{
if (k==i+1 && m==j-1)
{
return 1;
}
}
else if (board[k][m]==BLACK_QUEEN || board[k][m]==BLACK_BISHOP)
{
return 1;
}
else
{
break;
}
}
}
}
if ( (i<7 && j<6 && board[i+1][j+2]==BLACK_KNIGHT) || ((i>0 && j<6) && board[i-1][j+2]==BLACK_KNIGHT) || ((i<6 && j<7) &&board[i+2][j+1]==BLACK_KNIGHT) || ((i<6 && j>0) && board[i+2][j-1]==BLACK_KNIGHT))
{
return 1;
}
if (((i<7 && j>1) && board[i+1][j-2]==BLACK_KNIGHT) || ((i>0 && j>1) && board[i-1][j-2]==BLACK_KNIGHT) || ((i>1 && j>0) && board[i-2][j-1]==BLACK_KNIGHT) || ((i>1 && j<7) && board[i-2][j+1]==BLACK_KNIGHT))
{
return 1;
}
return 0;
}
//Same for Black King. Opponent piece only differs.
else
{
for (k=i-1;k>=0;k--)
{
if (board[k][j]>10)
{
break;
}
else
{
if ( board[k][j]<10)
{
if ((board[k][j]==WHITE_KING) && k==i-1 ) return 1;
if (board[k][j]==WHITE_ROOK || board[k][j]==WHITE_QUEEN)
{
return 1;
}
if (board[k][j]!=0)
break;
}
}
for (k=i+1;k<8;k++)
{
if (board[k][j]>10)
{
break;
}
else
{
if ( board[k][j]<10)
{
if ((board[k][j]==WHITE_KING) && k==i+1 ) return 1;
if (board[k][j]==WHITE_ROOK || board[k][j]==WHITE_QUEEN)
{
return 1;
}
if (board[k][j]!=0)
break;
}
}
}
for (k=j+1;k<8;k++)
{
if (board[i][k]>10)
{
break;
}
else
{
if ( board[i][k]<10)
{
if ((board[i][k]==WHITE_KING) && k==j+1 ) return 1;
if (board[i][k]==WHITE_ROOK || board[i][k]==WHITE_QUEEN)
{
return 1;
}
if (board[i][k]!=0)
break;
}
}
}
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