package russiagame;

/**
 * <p>Title: </p>
 * <p>Description: </p>
 * <p>Copyright: Copyright (c) 2003</p>
 * <p>Company: </p>
 * @author not attributable
 * @version 1.0
 */

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

public class GameAreaPanel
    extends Panel {

  private Timer timer; //記時器，用于控制下落時間間隔
  private int nTime = 1000; //速度，創建記時器是使用
  private Root root; //要落下的方塊的引用，即根類
  private GameTable gTable; //創建一個游戲桌
  private int nWhich; //標志創建哪一個要下落的方塊
  private int tempnWhich; //標志下一個要創建的方塊，即提前顯示下落塊
  private int nScore = 0; //每消一行加10分，用來記錄總分數
  private boolean canMove = false; //標志是否響應鍵盤
  private Image myImage0, myImage1; //加載兩個圖片，用來覆蓋背景和組成方塊
  private boolean isRun = true; //標志是開始還是暫停，一鈕兩用

  public GameAreaPanel(GameTable gTable) {
    myImage0 = getToolkit().getImage("b0.jpg");
    myImage1 = getToolkit().getImage("b1.jpg");

    gTable.myTable = new int[gTable.x][gTable.y];
    for (int i = 0; i < gTable.x; i++)
      for (int j = 0; j < gTable.y; j++)
        gTable.myTable[i][j] = 0;
  }

  public void Init() {
    for (int i = 0; i < gTable.x; i++) //重新給游戲桌置0標志
      for (int j = 0; j < gTable.y; j++) {
        gTable.myTable[i][j] = 0;
      }
    repaint();
  }

  public void paint(Graphics g) {
    for (int i = 0; i < gTable.x; i++) //根據桌子上的標記決定是否畫方塊
      for (int j = 0; j < gTable.y; j++) {
        if (gTable.myTable[i][j] == 1) { //有，畫藍方塊
          g.drawImage(myImage1, 0 + i * (15 + 2) + 2, 0 + j * (15 + 2) + 2, this);
        }
        else if (gTable.myTable[i][j] == 0) { //無，畫白方塊
          g.drawImage(myImage0, 0 + i * (15 + 2) + 2, 0 + j * (15 + 2) + 2, this);
        }
      }
  }

  public void actionPerformed(ActionEvent e) {
    if (isRun) { //是開始
      timer.start();
      isRun = !isRun;
      canMove = true; //可以響應鍵盤
    }
    else { //是暫停
      timer.stop();
      isRun = !isRun;
      canMove = false; //不可以響應鍵盤
    }
  }

  public void UpdateGraph(GameTable gameTable)
  {
    gTable = gameTable;
    this.repaint();
  }

  public void update(Graphics g) {
    paint(g); //防止閃爍
  }
}