mchess-client/lib/chess/chess_square_outer_dragtarget.dart

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import 'package:flutter/material.dart';
import 'package:mchess/chess/chess_square_inner_draggable.dart';
import 'package:mchess/chess_bloc/chess_bloc.dart';
import 'package:mchess/chess_bloc/chess_events.dart';
import 'package:mchess/chess_bloc/promotion_bloc.dart';
import 'package:mchess/utils/chess_utils.dart';
class ChessSquareOuterDragTarget extends StatelessWidget {
final ChessCoordinate coordinate;
final ChessPiece containedPiece;
const ChessSquareOuterDragTarget(
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{super.key, required this.coordinate, required this.containedPiece});
@override
Widget build(BuildContext context) {
return DragTarget<PieceDragged>(
onWillAccept: (move) {
if (move?.fromSquare == coordinate) {
return false;
}
return true;
},
onAccept: (pieceDragged) {
// Replace the dummy value with the actual target of the move.
pieceDragged.toSquare = coordinate;
if (isPromotionMove(
pieceDragged.movedPiece!.pieceClass,
ChessBloc.myColor!,
pieceDragged.toSquare,
)) {
var move = ChessMove(
from: pieceDragged.fromSquare, to: pieceDragged.toSquare);
PromotionBloc().add(PawnMovedToPromotionField(
move: move, colorMoved: ChessBloc.myColor!));
} else if (coordinate != pieceDragged.fromSquare) {
ChessBloc().add(OwnPieceMoved(
startSquare: pieceDragged.fromSquare,
endSquare: pieceDragged.toSquare));
}
},
builder: (context, candidateData, rejectedData) {
return ChessSquareInnerDraggable(
coordinate: coordinate,
containedPiece: containedPiece,
);
},
);
}
}