#ifndef __TYPES_H_INC
#define __TYPES_H_INC

enum Piece: byte {
	P_EMPTY = 0b0000,
	P_ANY = 0b1000,

	W_PAWN = 0b0001,
	W_KNGT = 0b0010,
	W_KING = 0b0011,
	W_BSHP = 0b0101,
	W_ROOK = 0b0110,
	W_QUEN = 0b0111,

	B_PAWN = 0b1001,
	B_KNGT = 0b1010,
	B_KING = 0b1011,
	B_BSHP = 0b1101,
	B_ROOK = 0b1110,
	B_QUEN = 0b1111,
};

#ifdef _ACF_FAST_PIECE
Piece char_to_piece(char c) {
	switch(c) {
		case 'p': return W_PAWN;
		case 'n': return W_KNGT;
		case 'k': return W_KING;
		case 'b': return W_BSHP;
		case 'r': return W_ROOK;
		case 'q': return W_QUEN;

		case 'P': return B_PAWN;
		case 'N': return B_KNGT;
		case 'K': return B_KING;
		case 'B': return B_BSHP;
		case 'R': return B_ROOK;
		case 'Q': return B_QUEN;

		default: return P_EMPTY;
	}
}

#else // _ACF_FAST_PIECE

const char CHAR_STRS[] PROGMEM = " pnkbrq PNKBRQ";
Piece char_to_piece(char c) {
	for(byte i = 0; i < 0b1111; i++) {
		if(pgm_read_byte_near(CHAR_STRS + i) == c)
			return (Piece)i;
	}
	return P_EMPTY;
}
char piece_to_char(Piece p) {
	return CHAR_STRS[p];
}
#endif // _ACF_FAST_PIECE

#endif