Question

我正在创建一个国际象棋游戏，我刚刚完成了基本的Ai，但每当一个棋子被拿走时它会消失并在几个回合之后回来。这件作品甚至不应该在呈现作品的列表中。这是渲染/添加/设置新片段的类

setPieceLoc()将旧片段设置在新位置，并从所有列表中删除original和newLoc。有谁知道为什么会这样？没有其他类可以向列表添加新信息，所以据我所知，这里必定是错误。

package me.xthegamerplayz.FirstGame.board;

import java.awt.Color;
import java.awt.Graphics;
import java.awt.Point;

import me.xthegamerplayz.FirstGame.board.tiles.ChessImages;
import me.xthegamerplayz.FirstGame.rules.LegalMoves;

public class Board {

    public static void addPiece(int x, int y, int piece) {

        Point point = new Point();
        point.setLocation(x, y);

        if(piece > 16)
            ChessBoard.black.put(point, piece);
        else
            ChessBoard.white.put(point, piece);
    }

    public static void setPieceLoc(Point original, Point newLoc) {
        int piece = 8;
        if(ChessBoard.white.containsKey(original))
            piece = ChessBoard.white.get(original);
        else if(ChessBoard.black.containsKey(original))
            piece = ChessBoard.black.get(original);

        //Remove piece at newLoc
        if(ChessBoard.white.containsKey(newLoc))
            ChessBoard.white.remove(newLoc);
        else if(ChessBoard.black.containsKey(newLoc))
            ChessBoard.black.remove(newLoc);

        //Remove piece from previous location
        if(ChessBoard.white.containsKey(original))
            ChessBoard.white.remove(original);
        else if(ChessBoard.black.containsKey(original))
            ChessBoard.black.remove(original);

        if(piece > 16)
            ChessBoard.black.put(newLoc, piece);
        else
            ChessBoard.white.put(newLoc, piece);
    }

    public void registerPieces() {
        //Pawns
        for(int x = 0; x < 8; x++) {
            addPiece(x, 1, 8);
            addPiece(x, 6, 24);
        }
        //White
        addPiece(0, 0, 9);
        addPiece(1, 0, 10);
        addPiece(2, 0, 11);
        addPiece(5, 0, 11);
        addPiece(6, 0, 10);
        addPiece(7, 0, 9);

        addPiece(4, 0, 12);
        addPiece(3, 0, 13);

        //Black
        addPiece(0, 7, 25);
        addPiece(1, 7, 26);
        addPiece(2, 7, 27);
        addPiece(5, 7, 27);
        addPiece(6, 7, 26);
        addPiece(7, 7, 25);

        addPiece(3, 7, 28);
        addPiece(4, 7, 29);

    }

    public void render(Graphics g) {

        for(Point point : ChessBoard.white.keySet()) {

            int piece = ChessBoard.white.get(new Point(point));
            int x = (int) (point.getX()*64) + 20;
            int y = (int) (point.getY()*64) + 20;

            boolean showTiles = false;
            if(showTiles) {
                if(piece == 24) {
                    LegalMoves lm = new LegalMoves(point);

                    for(Point p : lm.moves()) {

                        int bx = (int) (p.getX()*64) + 20;
                        int by = (int) (p.getY()*64) + 20;
                        g.setColor(Color.green);
                        g.fillRect(bx, by, 64, 64);
                    }
                }
            }

            g.drawImage(ChessImages.getPieceImage(piece), x, y, null);
        }

        for(Point point : ChessBoard.black.keySet()) {

            int piece = ChessBoard.black.get(new Point(point));
            int x = (int) (point.getX()*64) + 20;
            int y = (int) (point.getY()*64) + 20;

            boolean showTiles = false;
            if(showTiles) {
                if(piece == 24) {
                    LegalMoves lm = new LegalMoves(point);

                    for(Point p : lm.moves()) {

                        int bx = (int) (p.getX()*64) + 20;
                        int by = (int) (p.getY()*64) + 20;
                        g.setColor(Color.green);
                        g.fillRect(bx, by, 64, 64);
                    }
                }
            }

            g.drawImage(ChessImages.getPieceImage(piece), x, y, null);
        }

    }

}

Answer 1

看起来你正试图从一个空的地方移动一块。

请注意，当您的原件既不是黑色也不是白色地图时，它将使用第8块，它看起来是白色的棋子。这恰好是您视频中重新出现的内容。

当发生这种情况时你真的应该抛出异常，因为从空方块移动一块是没有意义的。这样做可以帮助您调试发生这种情况的情况：

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app="demo">
  <div ng-controller="DefaultController as ctrl">
    {{ctrl.row.categoryId}}
    <select class="select"
           convert-to-number
           ng-options="option.id as option.name for option in ctrl.abc"
           ng-model="ctrl.row.categoryId">
    </select>
  </div>
</div>

拍摄时不会移除碎片

1 个答案: