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This commit is contained in:
Lucas Morgan
2024-10-20 22:27:08 -05:00
parent f75553a0ad
commit 3593785421
27 changed files with 1020 additions and 1081 deletions
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53
Shogi.Domain/ValueObjects/Piece.cs
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@@ -1,11 +1,10 @@
using Shogi.Domain.Other;
using Shogi.Domain.YetToBeAssimilatedIntoDDD.Pathing;
using Shogi.Domain.YetToBeAssimilatedIntoDDD.Pathing;
using System.Diagnostics;
namespace Shogi.Domain.ValueObjects
{
[DebuggerDisplay("{WhichPiece} {Owner}")]
public abstract record class Piece : IRulesLifecycle<Piece>
public abstract record class Piece
{
public static Piece Create(WhichPiece piece, WhichPlayer owner, bool isPromoted = false)
{
@@ -65,7 +64,7 @@ namespace Shogi.Domain.ValueObjects
var position = start;
while (Vector2.Distance(start, position) < Vector2.Distance(start, end))
{
position += path.NormalizedDirection;
position += path.Step;
steps.Add(position);
if (path.Distance == Distance.OneStep) break;
@@ -76,51 +75,7 @@ namespace Shogi.Domain.ValueObjects
return steps;
}
return Array.Empty<Vector2>();
return [];
}
#region IRulesLifecycle
public RulesLifecycleResult OnMoveValidation(MoveValidationContext<Piece> ctx)
{
var paths = this.MoveSet;
var matchingPaths = paths.Where(p => p.NormalizedDirection == Vector2.Normalize(ctx.To - ctx.From));
if (!matchingPaths.Any())
{
return new RulesLifecycleResult(IsError: true, "Piece cannot move like that.");
}
var multiStepPaths = matchingPaths.Where(p => p.Distance == Distance.MultiStep).ToArray();
foreach (var path in multiStepPaths)
{
// Assert that no pieces exist along the from -> to path.
var isPathObstructed = GetPositionsAlongPath(ctx.From, ctx.To, path)
.Any(pos => ctx.BoardState[(int)pos.X, (int)pos.Y] != null);
if (isPathObstructed)
{
return new RulesLifecycleResult(IsError: true, "Piece cannot move through other pieces.");
}
}
var pieceAtTo = ctx.BoardState[(int)ctx.To.X, (int)ctx.To.Y];
if (pieceAtTo?.Owner == this.Owner)
{
return new RulesLifecycleResult(IsError: true, "Cannot capture your own pieces.");
}
return new RulesLifecycleResult(IsError: false);
static IEnumerable<Vector2> GetPositionsAlongPath(Vector2 from, Vector2 to, Path path)
{
var next = from;
while (next != to && next.X >= 0 && next.X < 9 && next.Y >= 0 && next.Y < 9)
{
next += path.NormalizedDirection;
yield return next;
}
}
}
#endregion
}
}