109 lines
2.6 KiB
C++
109 lines
2.6 KiB
C++
#ifndef __BOARD_H_INC
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#define __BOARD_H_INC
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#include "Types.h"
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struct Unmake {
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byte sq_from;
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byte sq_to;
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byte enpassant;
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};
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class Board {
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public:
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Board();
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void print() {
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for(char i = 7; i >= 0; i--) {
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for(byte j = 0; j < 16; j++) {
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Serial.print(field[i*16 + j], HEX);
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Serial.print(" ");
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}
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Serial.println();
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}
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}
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unsigned long get_zobrist() {
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long* addr = (long*) &field[PTR_ZOBRIST];
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return *addr;
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}
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byte field[128] = {
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W_ROOK, W_KNGT, W_BSHP, W_QUEN, W_KING, W_BSHP, W_KNGT, W_ROOK, 0, 0, 0, 0, 0, 0, 0, 0,
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W_PAWN, W_PAWN, W_PAWN, W_PAWN, W_PAWN, W_PAWN, W_PAWN, W_PAWN, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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B_PAWN, B_PAWN, B_PAWN, B_PAWN, B_PAWN, B_PAWN, B_PAWN, B_PAWN, 0, 0, 0, 0, 0, 0, 0, 0,
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B_ROOK, B_KNGT, B_BSHP, B_QUEN, B_KING, B_BSHP, B_KNGT, B_ROOK, 0, 0, 0, 0, 0, 0, 0, 0,
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};
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private:
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static const byte PTR_SIDE_AND_CASTLERIGHT = 0x08; //byte (1=side, 2,4=white castle, 8,16=black)
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static const byte PTR_PTR_UNMAKE = 0x09; //byte (points to index)
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static const byte PTR_W_KING = 0x0A; // byte (points to index or maybe 64-arr index)
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// const byte PTR_B_KING = 0x0B; (PTR_W_KING | COLOR or PTR_W_KING + COLOR)
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static const byte PTR_ZOBRIST = 0x0C; // 4 bytes
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// 0x0D
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// 0x0E
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// 0x0F
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static const byte PTR_ENPASSANT = 0x18;
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static const byte PTR_REVMOV = 0x19;
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static const byte PTR_UNMAKE_START = 0x28;
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static const byte PTR_UNMAKE_LAST = 0x7F;
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inline byte get_unmake() __attribute__((always_inline)) {
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return field[PTR_PTR_UNMAKE];
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}
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byte next_unmake() {
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field[PTR_PTR_UNMAKE]++;
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if(get_unmake() > PTR_UNMAKE_LAST) {
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field[PTR_PTR_UNMAKE] = PTR_UNMAKE_START;
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return PTR_UNMAKE_START;
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}
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if(!(get_unmake() & 0x8)) {
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field[PTR_PTR_UNMAKE] += 0x8;
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}
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return get_unmake();
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}
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byte prev_unmake() {
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field[PTR_PTR_UNMAKE]--;
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if(get_unmake() < PTR_UNMAKE_START) {
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field[PTR_PTR_UNMAKE] = PTR_UNMAKE_LAST;
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return PTR_UNMAKE_LAST;
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}
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if(!(get_unmake() & 0x8)) {
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field[PTR_PTR_UNMAKE] -= 0x8;
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}
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return get_unmake();
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}
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void store_unmake(Unmake *u) {
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field[get_unmake()] = *(byte*)u;
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for(size_t i = 0; i < sizeof(u); i++) {
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field[next_unmake()] = *(byte*)(u+i);
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}
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}
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Unmake read_unmake() {
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Unmake u;
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byte* ptr = (byte*) &u;
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for(int i = sizeof(u) - 1; i >= 0; i++) {
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ptr[i] = field[prev_unmake()];
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}
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return u;
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}
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};
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Board::Board() {
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// Then, other data we need to store is assigned 0-fields.
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field[PTR_ZOBRIST+1] = 1;
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}
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#endif
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