Ejemplo n.º 1
0
func InitMoveTable() {
	ptr := 0
	for _, pt := range ALL_PIECE_TYPES {
		for sq := 0; sq < square.BOARD_SIZE; sq++ {

			MoveTablePtrs[TMoveTableKey{square.TSquare(sq), piece.FromTypeAndColor(piece.TPieceType(pt), piece.BLACK)}] = ptr
			MoveTablePtrs[TMoveTableKey{square.TSquare(sq), piece.FromTypeAndColor(piece.TPieceType(pt), piece.WHITE)}] = ptr

			for df := -2; df <= 2; df++ {
				for dr := -2; dr <= 2; dr++ {
					vector_ok := false
					dfabs := math.Abs(float64(df))
					drabs := math.Abs(float64(dr))
					prodabs := dfabs * drabs
					sumabs := dfabs + drabs
					if (pt & piece.IS_JUMPING) != 0 {
						vector_ok = vector_ok || (prodabs == 2)
					}
					if (pt & piece.IS_STRAIGHT) != 0 {
						vector_ok = vector_ok || (sumabs == 1)
					}
					if (pt & piece.IS_DIAGONAL) != 0 {
						vector_ok = vector_ok || (prodabs == 1)
					}
					if vector_ok {
						ok := true
						f := int(square.FileOf(square.TSquare(sq)))
						r := int(square.RankOf(square.TSquare(sq)))
						vector_start := ptr
						for ok {
							f += df
							r += dr
							if square.FileRankOk(f, r) {
								tsq := square.FromFileRank(square.TFile(f), square.TRank(r))
								MoveTable[ptr].To = tsq
								MoveTable[ptr].EndPiece = false
								ptr++
							} else {
								ok = false
							}
							if (pt & piece.IS_SLIDING) == 0 {
								ok = false
							}
						}
						for vector_next_ptr := vector_start; vector_next_ptr < ptr; vector_next_ptr++ {
							MoveTable[vector_next_ptr].NextVector = ptr
						}
					}
				}
			}

			MoveTable[ptr].EndPiece = true
			ptr++
		}
	}
}
Ejemplo n.º 2
0
func (b *TBoard) CalcMaterial() {
	b.Material[INDEX_OF_WHITE] = 0
	b.Material[INDEX_OF_BLACK] = 0
	for sq := 0; sq < square.BOARD_SIZE; sq++ {
		p := b.PieceAtSq(square.TSquare(sq))
		c := piece.ColorOf(p)
		t := piece.TypeOf(p)
		b.Material[IndexOfColor(c)] += PIECE_VALUES[t]
	}
}
Ejemplo n.º 3
0
func (pos *TPosition) GetKingPos(c piece.TColor) square.TSquare {
	return square.TSquare(pos[KINGSPOS_INDEX+IndexOfColor(c)])
}