/*
 * FieldCell.java
 *
 * Created on 2007年8月21日, 上午11:42
 *
 * To change this template, choose Tools | Template Manager
 * and open the template in the editor.
 */

package minegame;

/**
 *
 * @author linda
 */


import java.awt.*;
import javax.swing.*;

public class FieldCell {
    
    //狀態常量
    public static final int UNKNOWN = 0;
    public static final int FLAGGED = 1;
    public static final int DOUBTED = 2;
    public static final int REVEALED = 3;
    public static final int WRONG_F = 4;
    public static final int WRONG_D = 5;
    
    //是否地雷指示器
    private boolean isMine = false;
    
    //狀態變量
    private int state = UNKNOWN;
    
    /**
     *   圖像信息變量gHint:
     *   范圍0-14  
     *   - 0-8: 數字
     *   - 9:   未掃（雷）單元
     *   - 10:  地雷
     *   - 11:  已掃標記
     *   - 12:  已掃標記叉號
     *   - 13:  疑問標記
     *   - 14:  疑問標記叉號
     */
    private int gHint = 9;
    
    //非地雷單元顯示的相鄰地雷數
    private int number = -1;
    
    public FieldCell() {//構造方法
    }
    
    public void setState(int s) {//設置單元狀態
        state = s;
        switch (s) {
            case UNKNOWN:
                gHint = 9;
                break;
            case FLAGGED:
                gHint = 11;
                break;
            case DOUBTED:
                gHint = 13;
                break;
            case REVEALED:
                gHint = isMine ? 10 : number;
                break;
            case WRONG_F:
                gHint = 12;
                break;
            case WRONG_D:
                gHint = 14;
                break;
        }
    }
    
    public int getState() {//獲取單元狀態
        return state;
    }
    
    public void setMine(boolean b) {//設置地雷單元
        isMine = b;
    }
    
    public boolean isMine() {//獲取是否地雷信息
        return isMine;
    }
    
    public void setNumber(int num) {//設置數字
        if (num < 0 || num > 8)
            return;
        number = num;
    }
    
    public int getNumber() {//獲取數字
        return number;
    }
    
    private void setGHint(int h) {//設置圖像信息
        gHint = h;
    }
    
    //根據各單元圖像信息畫出單元圖像
    public void draw(Graphics g, int x, int y) {
        if (gHint < 0 || gHint > 14)
            return;
        switch (gHint) {
            case 9:
                GraphicsUtil.drawUnknown(g, x, y);//畫出未掃單元
                return;
            case 10:
                GraphicsUtil.drawMine(g, x, y);//畫出地雷單元
                return;
            case 11:
                GraphicsUtil.drawFlag(g, x, y);//畫出已掃單元
                return;
            case 12:
                GraphicsUtil.drawFlag(g, x, y);//畫出已掃單元
                GraphicsUtil.drawCross(g, x, y);//畫出叉號
                return;
            case 13:
                GraphicsUtil.drawDoubt(g, x, y);//畫出疑問單元
                return;
            case 14:
                GraphicsUtil.drawDoubt(g, x, y);//畫出疑問單元
                GraphicsUtil.drawCross(g, x, y);//畫出叉號
                return;
            default:
                GraphicsUtil.drawNumber(g, x, y, gHint);//畫出數字
                return;
        }
    }
    
}