48 lines
1.4 KiB
C#
48 lines
1.4 KiB
C#
using Shogi.Domain.Pathing;
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using System.Collections.ObjectModel;
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namespace Shogi.Domain.Pieces
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{
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internal class Bishop : Piece
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{
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private static readonly ReadOnlyCollection<Path> BishopPaths = new(new List<Path>(4)
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{
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new Path(Direction.UpLeft, Distance.MultiStep),
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new Path(Direction.UpRight, Distance.MultiStep),
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new Path(Direction.DownLeft, Distance.MultiStep),
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new Path(Direction.DownRight, Distance.MultiStep)
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});
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public static readonly ReadOnlyCollection<Path> PromotedBishopPaths = new(new List<Path>(8)
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{
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new Path(Direction.Up),
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new Path(Direction.Left),
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new Path(Direction.Right),
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new Path(Direction.Down),
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new Path(Direction.UpLeft, Distance.MultiStep),
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new Path(Direction.UpRight, Distance.MultiStep),
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new Path(Direction.DownLeft, Distance.MultiStep),
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new Path(Direction.DownRight, Distance.MultiStep)
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});
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public static readonly ReadOnlyCollection<Path> Player2Paths =
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BishopPaths
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.Select(p => p.Invert())
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.ToList()
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.AsReadOnly();
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public static readonly ReadOnlyCollection<Path> Player2PromotedPaths =
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PromotedBishopPaths
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.Select(p => p.Invert())
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.ToList()
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.AsReadOnly();
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public Bishop(WhichPlayer owner, bool isPromoted = false)
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: base(WhichPiece.Bishop, owner, isPromoted)
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{
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}
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public override IEnumerable<Path> MoveSet => IsPromoted ? PromotedBishopPaths : BishopPaths;
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}
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}
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