Piece.java

package com.znv.linkup.core.card;

import android.graphics.Point;

import com.znv.linkup.core.GameSettings;

/**
 * 游戏卡片信息类，包括图片，大小，位置等信息
 * 
 * @author yzb
 * 
 */
public class Piece {
    // private Bitmap image = null;
    private int imageId = 0;
    private int beginX = 0;
    private int beginY = 0;
    private int indexX = 0;
    private int indexY = 0;
    private int width = 40;
    private int height = 40;
    // private boolean isEmpty = false;
    private boolean isStar = false;

    public static int XSize = 0;
    public static int YSize = 0;

    public Piece(int indexY, int indexX) {
        this.indexY = indexY;
        this.indexX = indexX;
    }

    /**
     * 判断卡片与当前卡片是否为相同的图片
     * 
     * @param other
     *            要比较的卡片
     * @return 是相同的卡片则返回true
     */
    public boolean isSameImage(Piece other) {
        // if (image == null || other.image == null) {
        // return false;
        // }
        return getImageId() == other.getImageId();
    }

    /**
     * 获取卡片中心点
     * 
     * @return 卡片中心点信息
     */
    public Point getCenter() {
        return new Point(beginX + width / 2, beginY + height / 2);
    }

    /**
     * 获取卡片索引
     * 
     * @return 卡片索引
     */
    public int getIndex() {
        return getIndexY() * XSize + getIndexX();
    }

    /**
     * 交换卡片信息
     * 
     * @param other
     *            要交换的卡片
     */
    public void exchange(Piece other) {
        // Bitmap bm = getImage();
        // setImage(other.getImage());
        // other.setImage(bm);

        int imageId = getImageId();
        setImageId(other.getImageId());
        other.setImageId(imageId);

        // boolean isEmpty = isEmpty();
        // setEmpty(other.isEmpty());
        // other.setEmpty(isEmpty);

        boolean isStar = isStar();
        setStar(other.isStar());
        other.setStar(isStar);
    }

    /**
     * 判断卡片上是否有图片
     * 
     * @param piece
     *            卡片信息
     * @return 如果图片则返回true
     */
    public static boolean hasImage(Piece piece) {
        // return piece != null && !piece.isEmpty() && piece.getImageId() != GameSettings.GroundCardValue && piece.getImageId() != GameSettings.EmptyCardValue;
        return piece != null && piece.getImageId() != GameSettings.GroundCardValue && piece.getImageId() != GameSettings.EmptyCardValue;
    }

    /**
     * 判断卡片是否可以选择
     * 
     * @param piece
     *            卡片信息
     * @return 可以选择则返回true，与hasImage的区别是障碍卡片不能选择
     */
    public static boolean canSelect(Piece piece) {
        return hasImage(piece) && piece.getImageId() != GameSettings.ObstacleCardValue;
    }

    public static int getDistance(Piece p1, Piece p2) {
        return Math.abs(p1.getIndexX() - p2.getIndexX()) + Math.abs(p1.getIndexY() - p2.getIndexY());
    }

    // public Bitmap getImage() {
    // return image;
    // }
    //
    // public void setImage(Bitmap image) {
    // this.image = image;
    // }

    public int getImageId() {
        return imageId;
    }

    public void setImageId(int imageId) {
        this.imageId = imageId;
    }

    public int getBeginX() {
        return beginX;
    }

    public void setBeginX(int beginX) {
        this.beginX = beginX;
    }

    public int getBeginY() {
        return beginY;
    }

    public void setBeginY(int beginY) {
        this.beginY = beginY;
    }

    public int getIndexX() {
        return indexX;
    }

    public void setIndexX(int indexX) {
        this.indexX = indexX;
    }

    public int getIndexY() {
        return indexY;
    }

    public void setIndexY(int indexY) {
        this.indexY = indexY;
    }

    // private boolean isEmpty() {
    // return isEmpty;
    // }
    //
    // public void setEmpty(boolean isEmpty) {
    // this.isEmpty = isEmpty;
    // }

    public int getWidth() {
        return width;
    }

    public void setWidth(int width) {
        this.width = width;
    }

    public int getHeight() {
        return height;
    }

    public void setHeight(int height) {
        this.height = height;
    }

    public boolean isStar() {
        return isStar;
    }

    public void setStar(boolean isStar) {
        this.isStar = isStar;
    }
}