112 lines
2.7 KiB
Dart
112 lines
2.7 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:flutter_svg/svg.dart';
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import 'package:quiver/core.dart';
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enum ChessPieceName {
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none,
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whitePawn,
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whiteBishop,
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whiteKnight,
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whiteRook,
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whiteQueen,
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whiteKing,
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blackPawn,
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blackBishop,
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blackKnight,
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blackRook,
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blackQueen,
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blackKing,
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}
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enum ChessColor { black, white }
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Map<ChessPieceName, String> chessPiecesAssets = {
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ChessPieceName.whitePawn: 'assets/pieces/white/pawn.svg',
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ChessPieceName.whiteBishop: 'assets/pieces/white/bishop.svg',
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ChessPieceName.whiteKnight: 'assets/pieces/white/knight.svg',
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ChessPieceName.whiteRook: 'assets/pieces/white/rook.svg',
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ChessPieceName.whiteQueen: 'assets/pieces/white/queen.svg',
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ChessPieceName.whiteKing: 'assets/pieces/white/king.svg',
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ChessPieceName.blackPawn: 'assets/pieces/black/pawn.svg',
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ChessPieceName.blackBishop: 'assets/pieces/black/bishop.svg',
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ChessPieceName.blackKnight: 'assets/pieces/black/knight.svg',
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ChessPieceName.blackRook: 'assets/pieces/black/rook.svg',
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ChessPieceName.blackQueen: 'assets/pieces/black/queen.svg',
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ChessPieceName.blackKing: 'assets/pieces/black/king.svg',
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ChessPieceName.none: 'assets/empty.svg',
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};
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class ChessCoordinate {
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late int column;
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late int row;
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ChessCoordinate(this.column, this.row);
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ChessCoordinate.copyFrom(ChessCoordinate original)
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: column = original.column,
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row = original.row;
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static String columnIntToColumnString(int col) {
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String colStr;
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colStr = String.fromCharCode(col + 96);
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return colStr;
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}
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static int columnStringToColumnInt(String col) {
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int colInt;
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colInt = col.codeUnitAt(0) - 96;
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return colInt;
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}
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@override
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operator ==(other) {
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return other is ChessCoordinate &&
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other.column == column &&
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other.row == row;
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}
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@override
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int get hashCode {
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return hash2(column, row);
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}
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}
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class ChessPiece extends StatelessWidget {
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final ChessColor color;
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final ChessPieceName pieceName;
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final Widget? pieceImage;
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const ChessPiece._(this.pieceName, this.color, this.pieceImage);
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factory ChessPiece(ChessPieceName name, ChessColor color) {
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Widget? pieceImage;
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String pieceAssetUrl = chessPiecesAssets[name]!;
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pieceImage = SvgPicture.asset(pieceAssetUrl);
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return ChessPiece._(name, color, pieceImage);
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}
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const ChessPiece.none({super.key})
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: pieceName = ChessPieceName.none,
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color = ChessColor.white,
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pieceImage = null;
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@override
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Widget build(BuildContext context) {
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return SizedBox(
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child: pieceImage,
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);
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}
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}
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class ChessMove {
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ChessCoordinate startSquare;
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ChessCoordinate endSquare;
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ChessPiece? movedPiece;
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ChessPiece? pieceOnEndSquare;
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ChessMove(this.startSquare, this.endSquare, this.movedPiece);
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}
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