gobang/lib/models/position.dart

import 'package:gobang/models/chess.dart';
import 'package:gobang/models/chess_shape.dart';

/// 棋子位置；颜色由享元 [Chess] 共享，形状与坐标为外部状态。
class Position {
  double dx;
  double dy;
  int gridX;
  int gridY;
  Chess chess;
  ChessShape chessShape;

  Position(
    this.dx,
    this.dy,
    this.chess, {
    this.gridX = 0,
    this.gridY = 0,
    ChessShape? chessShape,
  }) : chessShape = chessShape ?? chess.chessShape;
}