ChessCanvas.java

package apps.kiosk.games;

import java.awt.Color;
import java.awt.Graphics;
import java.util.Set;

import apps.kiosk.templates.CommonGraphics;
import apps.kiosk.templates.GameCanvas_Chessboard;

public class ChessCanvas extends GameCanvas_Chessboard {
    private static final long serialVersionUID = 1L;

    public String getGameName() { return "Chess"; }
    protected String getGameKey() { return "chess"; }

    @Override
    protected Set<String> getLegalMovesForCell(int xCell, int yCell) {
        String xLetter = coordinateToLetter(xCell);
        return gameStateHasLegalMovesMatching("\\( move .. " + xLetter + " " + yCell + " (.*) \\)");
    }
    
    @Override
    protected Set<String> getFactsAboutCell(int xCell, int yCell) {
        String xLetter = coordinateToLetter(xCell);
        return gameStateHasFactsMatching("\\( cell " + xLetter + " " + yCell + " (.*) \\)");
    }

    @Override
    protected void renderCellContent(Graphics g, String theFact) {
        String[] cellFacts = theFact.split(" ");
        String cellType = cellFacts[4];
        if(!cellType.equals("b")) {
            CommonGraphics.drawChessPiece(g, cellType);
        }
    }    
    
    @Override
    protected void renderMoveSelectionForCell(Graphics g, int xCell, int yCell, String theMove) {
        int width = g.getClipBounds().width;
        int height = g.getClipBounds().height;        
        
        String xLetter = coordinateToLetter(xCell);

        String[] moveParts = theMove.split(" ");
        String xTarget = moveParts[5];
        int yTarget = Integer.parseInt(moveParts[6]);
        if(xLetter.equals(xTarget) && yCell == yTarget) {
            g.setColor(new Color(0, 0, 255, 192));                
            g.drawRect(3, 3, width-6, height-6);
            CommonGraphics.fillWithString(g, "X", 3);
        }
    }
}