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/* This file is a part of othello-ai-guile-c
*
* Copyright (C) 2021 Robby Zambito
*
* othello-ai-guile-c is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* othello-ai-guile-c is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#define _GNU_SOURCE
#include <stdlib.h>
#include "othello.h"
#include "othello_move.h"
static enum player_color **board;
enum player_color **get_board(void) { return board; }
void initialize_board() {
board = calloc(8, sizeof(enum player_color *));
for (int i = 0; i < 8; i++) {
board[i] = calloc(8, sizeof(enum player_color));
}
// Set all the positions to empty
for (int i = 0; i < 8; i++) {
for (int j = 0; j < 8; j++) {
board[i][j] = EMPTY;
}
}
// Fill the starting positions
board[3][3] = WHITE;
board[3][4] = BLACK;
board[4][3] = BLACK;
board[4][4] = WHITE;
}
enum player_color get_winner() {
int white_score = 0, black_score = 0;
for (int row = 0; row < 8; row++) {
for (int col = 0; col < 8; col++) {
// This takes advantage of the fact that the 1 is the same thing as a
// true, and 0 is the same thing as a false. This will count the number of
// white and black spaces.
white_score += (int)(board[row][col] == WHITE);
black_score += (int)(board[row][col] == BLACK);
}
}
return white_score > black_score ? WHITE
: black_score > white_score ? BLACK
: EMPTY;
}
// Should be freed be the caller
enum player_color **copy_board(enum player_color **other) {
enum player_color **board = calloc(8, sizeof(enum player_color *));
for (int i = 0; i < 8; i++) {
board[i] = calloc(8, sizeof(enum player_color));
for (int j = 0; j < 8; j++) {
board[i][j] = other[i][j];
}
}
return board;
}
void free_board(enum player_color **board) {
for (int i = 0; i < 8; i++) {
free(board[i]);
}
free(board);
}
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