attack.cpp File Reference

#include <cstdio>
#include "defs.h"

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Functions
bool	isSquareAttacked (const int square, const int side, const S_BOARD *pos)
	Determines if a given square is attacked by a given side.

Variables
const int	knightDirection [8] = { -8, -19, -21, -12, 8, 19, 21, 12 }
	Knight movement directions in 120-square board representation.
const int	rookDirection [4] = { -1, -10, 1, 10 }
	Rook movement directions in 120-square board representation.
const int	bishopDirection [4] = { -9, -11, 11, 9 }
	Bishop movement directions in 120-square board representation.
const int	kingDirection [8] = { -1, -10, 1, 10, -9, -11, 11, 9 }
	King movement directions in 120-square board representation.

Function Documentation

isSquareAttacked()

bool isSquareAttacked	(	int	sq,
		int	side,
		const S_BOARD *	pos )

Determines if a given square is attacked by a given side.

Parameters

sq	Square index (120-based representation).
side	Side to check for attacks (WHITE or BLACK).
pos	Pointer to the current board state.

Returns

true if the square is attacked by the given side, false otherwise.

Definition at line 9 of file attack.cpp.

References ASSERT, bishopDirection, bP, EMPTY, isBoardStateValid(), IsBQ, IsKi, IsKn, IsRQ, kingDirection, knightDirection, OFFBOARD, PceValidEmptyOffbrd(), pieceColor, S_BOARD::pieces, rookDirection, SideValid(), SqIs120(), SqOnBoard(), WHITE, and wP.

Referenced by generateAllMoves(), makeMove(), and makeNullMove().

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Variable Documentation

bishopDirection

const int bishopDirection[4] = { -9, -11, 11, 9 }

Bishop movement directions in 120-square board representation.

Definition at line 6 of file attack.cpp.

Referenced by isSquareAttacked().

kingDirection

const int kingDirection[8] = { -1, -10, 1, 10, -9, -11, 11, 9 }

King movement directions in 120-square board representation.

Definition at line 7 of file attack.cpp.

Referenced by isSquareAttacked().

knightDirection

const int knightDirection[8] = { -8, -19, -21, -12, 8, 19, 21, 12 }

Knight movement directions in 120-square board representation.

Definition at line 4 of file attack.cpp.

Referenced by isSquareAttacked().

rookDirection

const int rookDirection[4] = { -1, -10, 1, 10 }

Rook movement directions in 120-square board representation.

Definition at line 5 of file attack.cpp.

Referenced by isSquareAttacked().