func kikiStraight(b *Node, list *[]shogi.Pos, pos shogi.Pos, player shogi.Player, dy int, dx int) {
for {
pos = shogi.MakePos(pos.X()+dx, pos.Y()+dy)
if !pos.InSide() {
break
}
koma := b.Cell(pos)
*list = append(*list, pos)
if koma != shogi.Blank {
break
}
}
}
func ListKikiInto(b *Node, pos shogi.Pos, r []shogi.Pos) []shogi.Pos {
koma := b.Cell(pos)
if koma.Kind() == shogi.NN {
return r
}
// 通常の移動
dir := koma.Player().Dir()
for _, to := range shogi.KomaMoveList[koma.Kind()] {
to_pos := shogi.MakePos(pos.X()+to[0], pos.Y()+dir*to[1])
if !to_pos.InSide() {
continue
}
to_koma := b.Cell(to_pos)
if to_koma != shogi.Blank && to_koma.Player() == koma.Player() {
continue
}
r = append(r, to_pos)
}
// 複数マス直進する移動
switch koma.Kind() {
case shogi.KY:
kikiStraight(b, &r, pos, koma.Player(), koma.Player().Dir(), 0)
case shogi.HI, shogi.RY:
kikiStraight(b, &r, pos, koma.Player(), 1, 0)
kikiStraight(b, &r, pos, koma.Player(), -1, 0)
kikiStraight(b, &r, pos, koma.Player(), 0, 1)
kikiStraight(b, &r, pos, koma.Player(), 0, -1)
case shogi.KA, shogi.UM:
kikiStraight(b, &r, pos, koma.Player(), 1, 1)
kikiStraight(b, &r, pos, koma.Player(), -1, 1)
kikiStraight(b, &r, pos, koma.Player(), 1, -1)
kikiStraight(b, &r, pos, koma.Player(), -1, -1)
}
return r
}