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#include <stdlib.h>
#include <stdio.h>
#include "board.h"
#include "piece.h"
static Board _setup_colors(Board b) {
short i, j;
for (i = 0; i < SIZE; i++)
for (j = 0; j < SIZE; j++)
if (i % 2) // Odd rows start with white
if (j % 2)
b[i][j].color = WHITE;
else
b[i][j].color = BLACK;
else
if (j % 2)
b[i][j].color = BLACK;
else
b[i][j].color = WHITE;
return b;
}
static Board _pawns(Board b) {
short white_pawns_row = 1, black_pawns_row = 6, i;
for (i = 0; i < SIZE; i++)
b[white_pawns_row][i].piece = new_piece(WHITE, PAWN);
for (i = 0; i < SIZE; i++)
b[black_pawns_row][i].piece = new_piece(BLACK, PAWN);
return b;
}
static Board _rocks(Board b) {
b[0][0].piece = new_piece(WHITE, ROCK);
b[0][7].piece = new_piece(WHITE, ROCK);
b[7][0].piece = new_piece(BLACK, ROCK);
b[7][7].piece = new_piece(BLACK, ROCK);
return b;
}
static Board _knights(Board b) {
b[0][1].piece = new_piece(WHITE, KNIGHT);
b[0][6].piece = new_piece(WHITE, KNIGHT);
b[7][1].piece = new_piece(BLACK, KNIGHT);
b[7][6].piece = new_piece(BLACK, KNIGHT);
return b;
}
static Board _bishops(Board b) {
b[0][2].piece = new_piece(WHITE, BISHOP);
b[0][5].piece = new_piece(WHITE, BISHOP);
b[7][2].piece = new_piece(BLACK, BISHOP);
b[7][5].piece = new_piece(BLACK, BISHOP);
return b;
}
static Board _queens(Board b) {
b[0][4].piece = new_piece(WHITE, QUEEN);
b[7][4].piece = new_piece(BLACK, QUEEN);
return b;
}
static Board _kings(Board b) {
b[0][3].piece = new_piece(WHITE, KING);
b[7][3].piece = new_piece(BLACK, KING);
return b;
}
static Board _setup_pieces(Board b) {
return _pawns(_rocks(_knights(_bishops(_queens(_kings(b)))))); // :-)
}
static Board _initial_setup(Board b) {
return _setup_pieces(_setup_colors(b));
}
static short _from_col(char col) {
// col is a character between 'a' and 'h'
return col - 'a';
}
static short _from_row(char row) {
// row is an ASCII digit between '1' and '8'
return row - '1';
}
Board board_init() {
int i, j;
Board b = malloc(sizeof(Square*) * SIZE);
for (i = 0; i < SIZE; i++) {
b[i] = malloc(sizeof(Square) * SIZE);
for (j = 0; j < SIZE; j++)
b[i][j].piece = NULL;
}
return _initial_setup(b);
}
int board_delete(Board b) {
short i, j;
for (i = 0; i < SIZE; i++) {
for (j = 0; j < SIZE; j++)
if (b[i][j].piece != NULL)
free(b[i][j].piece);
free(b[i]);
}
free(b);
return 0;
}
Square board_get_square(Board b, Coord c) {
short x = _from_col(c.col);
short y = _from_row(c.row);
return b[x][y];
}
Board board_set_square(Board b, Coord c, Square s) {
short x = _from_col(c.col);
short y = _from_row(c.row);
b[x][y] = s;
return b;
}
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