Hi
I am trying to make a simple C function to deal with inputting moves to a console chessboard (either 1D [64] array or 2D [8][8] array). I am only an amateur/beginner programmer.
I think the simplest function might be to input moves in pgn LAN notation(ie 1.e2e4 b8c6 etc).
I saw an implementation for a C++ board on a thread here 2003/4 at c++ chess game help
I think this is a reasonable approach to input/output moves and I am trying to adapt that code for C and to work properly (ie take move input as b2b4 and display board with chess char P/R/p/r etc shown moved and empty space ' ' where the char piece moved from).
So far I haven't got it working properly and I would be very grateful if anyone would look at my code and suggest how I can fix it to input moves properly and update the board array properly- ie get it working properly! I look forward to helpful replies-thanks
Code:#include <stdio.h> #include <string.h> #include <stdlib.h> #include <conio.h> // function prototypes void setup_board(); void display_board(); void set_coords(); // global variables char piece_moved; char board[10][10]; char choice; char move[5]; short x, y; short checkmate; int main() { setup_board(); printf("\n"); display_board(); while(!checkmate) { printf("\nEnter Move From: "); scanf("%s", move); // ex: b2 set_coords(); piece_moved = board[x][y]; board[x][y] = ' '; printf("Enter Move To: "); scanf("%s", move); // ex: b4 set_coords(); board[x][y] = piece_moved; printf("\n"); display_board(); } //system("PAUSE"); getchar(); return 0; } void setup_board() { // clear boxes for(x=0;x<10;x++) { for(y=0;y<10;y++) { board[x][y] = ' '; } } // color board for(x=0;x<8;x++) { for(y=0;y<9;y++) { board[x][y] = '-'; } } // upper pieces board[0][1] = 'r'; board[0][2] = 'n'; board[0][3] = 'b'; board[0][4] = 'q'; board[0][5] = 'k'; board[0][6] = 'b'; board[0][7] = 'n'; board[0][8] = 'r'; board[1][1] = 'p'; board[1][2] = 'p'; board[1][3] = 'p'; board[1][4] = 'p'; board[1][5] = 'p'; board[1][6] = 'p'; board[1][7] = 'p'; board[1][8] = 'p'; // lower piece board[6][1] = 'P'; board[6][2] = 'P'; board[6][3] = 'P'; board[6][4] = 'P'; board[6][5] = 'P'; board[6][6] = 'P'; board[6][7] = 'P'; board[6][8] = 'P'; board[7][1] = 'R'; board[7][2] = 'N'; board[7][3] = 'B'; board[7][4] = 'Q'; board[7][5] = 'K'; board[7][6] = 'B'; board[7][7] = 'N'; board[7][8] = 'R'; // notation help board[7][0] = '1'; board[6][0] = '2'; board[5][0] = '3'; board[4][0] = '4'; board[3][0] = '5'; board[2][0] = '6'; board[1][0] = '7'; board[0][0] = '8'; board[9][1] = 'A'; board[9][2] = 'B'; board[9][3] = 'C'; board[9][4] = 'D'; board[9][5] = 'E'; board[9][6] = 'F'; board[9][7] = 'G'; board[9][8] = 'H'; } void display_board() { for(x=0;x<10;x++) { for(y=0;y<10;y++) { printf("%c", board[x][y]); } printf("\n"); } printf("\n"); } void set_coords() { // get x value from character if(strchr(move,'a')) x = 7; else if(strchr(move,'b')) x = 6; else if(strchr(move,'c')) x = 5; else if(strchr(move,'d')) x = 4; else if(strchr(move,'e')) x = 3; else if(strchr(move,'f')) x = 2; else if(strchr(move,'g')) x = 1; else if(strchr(move,'h')) x = 0; // get y value from character if(strchr(move,'8')) y = 0; else if(strchr(move,'7')) y = 1; else if(strchr(move,'6')) y = 2; else if(strchr(move,'5')) y = 3; else if(strchr(move,'4')) y = 4; else if(strchr(move,'3')) y = 5; else if(strchr(move,'2')) y = 6; else if(strchr(move,'1')) y = 7; }
