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refactor(chess): 重构象棋程序基础结构,使用Nullable重构核心代码

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- 更新了多个文件的代码结构和类型定义，提高了代码的健壮性和可维护性
- 优化了事件处理、棋子管理和移动逻辑，为后续功能扩展打下坚实基础
- 修复了一些潜在的空指针异常问题，提高了程序的稳定性
- 修复部分bug
This commit is contained in:
ZZY
2024-11-22 23:51:32 +08:00
parent 9c619784af
commit 327c2df94d
19 changed files with 307 additions and 117 deletions
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37
Scripts/Src/AbstractBoard.cs
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@ -6,20 +6,20 @@ using static IBoard;
public abstract class AbstractBoard : IBoard {
private readonly int rows;
private readonly int cols;
protected readonly IPiece[,] pieces;
protected readonly IPiece?[,] pieces;
protected readonly List<MoveRecord> moveRecords = new();
protected readonly int MAX_RECORDS;
public int Rows => rows;
public int Cols => cols;
public event EventHandler<SetPieceEventArgs> OnSetPiece;
public event EventHandler<IPiece> OnInsert;
public event EventHandler<IPiece> OnRemove;
public event EventHandler<MoveEventArgs> OnMove;
public event EventHandler<SetPieceEventArgs>? OnSetPiece;
public event EventHandler<IPiece>? OnInsert;
public event EventHandler<IPiece>? OnRemove;
public event EventHandler<MoveEventArgs>? OnMove;
public event EventHandler<MoveRecord> OnAddRecord;
public event EventHandler<MoveRecord> OnUndoRecord;
public event EventHandler<MoveRecord>? OnAddRecord;
public event EventHandler<MoveRecord>? OnUndoRecord;
public AbstractBoard(int rows, int cols, int maxRecords = int.MaxValue) {
this.rows = rows;
@ -32,15 +32,15 @@ public abstract class AbstractBoard : IBoard {
return arrayPos.X < 0 || arrayPos.X >= Rows || arrayPos.Y < 0 || arrayPos.Y >= Cols;
}
public virtual IPiece GetPiece(Vector2I arrayPos) {
public virtual IPiece? GetPiece(Vector2I arrayPos) {
if (IsPosOutOfRange(arrayPos)) return null;
return pieces[arrayPos.X, arrayPos.Y];
}
public virtual IPiece SetPiece(IPiece piece, Vector2I pos) {
public virtual IPiece? SetPiece(IPiece? piece, Vector2I pos) {
if (IsPosOutOfRange(pos)) return null;
IPiece oldPiece = pieces[pos.X, pos.Y];
IPiece? oldPiece = pieces[pos.X, pos.Y];
pieces[pos.X, pos.Y] = piece;
if (piece != null) piece.Pos = pos;
// if (oldPiece != null) oldPiece.Pos = Vector2I.Zero;
@ -64,8 +64,8 @@ public abstract class AbstractBoard : IBoard {
return false;
}
IPiece piece = GetPiece(from);
if (GetPiece(to) != null && piece == null) {
IPiece? piece = GetPiece(from);
if (GetPiece(to) != null || piece == null) {
return false;
}
@ -75,8 +75,9 @@ public abstract class AbstractBoard : IBoard {
return true;
}
public virtual IPiece RemovePiece(Vector2I pos) {
IPiece piece = GetPiece(pos);
public virtual IPiece? RemovePiece(Vector2I pos) {
IPiece? piece = GetPiece(pos);
if (piece == null) return null;
OnRemove?.Invoke(this, piece);
return SetPiece(null, pos);
}
@ -96,7 +97,7 @@ public abstract class AbstractBoard : IBoard {
moveRecords.Clear();
}
public virtual void AddRecord(IPiece From, IPiece To, Vector2I FromPos, Vector2I ToPos) {
public virtual void AddRecord(IPiece? From, IPiece? To, Vector2I FromPos, Vector2I ToPos) {
if (moveRecords.Count >= MAX_RECORDS) {
moveRecords.RemoveAt(0);
}
@ -125,12 +126,12 @@ public abstract class AbstractBoard : IBoard {
}
public class MoveRecord {
public IPiece From { get; }
public IPiece To { get; }
public IPiece? From { get; }
public IPiece? To { get; }
public Vector2I FromPos { get; }
public Vector2I ToPos { get; }
public MoveRecord(IPiece From, IPiece To, Vector2I FromPos, Vector2I ToPos) {
public MoveRecord(IPiece? From, IPiece? To, Vector2I FromPos, Vector2I ToPos) {
this.From = From;
this.To = To;
this.ToPos = ToPos;