chessxiang.java

ajax chessajax chessajax chessajax chess

package chs;

public class ChessXiang extends ChessItem {

	public ChessXiang(String id, int x, int y) {
		super(id, x, y);
		// TODO Auto-generated constructor stub
	}

	public ChessXiang(ChessBoard b, String id, int x, int y) {
		super(b, id, x, y);
		// TODO Auto-generated constructor stub
	}

	public boolean isOnDiag(int x, int y) {
		int dx = Math.abs(this.x - x);
		int dy = Math.abs(this.y - y);
		return dx == dy && dy == 2;
	}

	public boolean moveTo(int x, int y) {
		if (!this.isOnDiag(x, y)) {
			System.err.println("not on a diag.");
			return false;
		}

		// 填心了
		ChessItem c = b.findItemAt(this.getCenterX(x), this.getCenterY(y));
		if (null != c) {
			System.err.println("found block:" + c.getId());
			return false;
		}
		
		return true;
	}
};