gameareapanel.java~86~

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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; //记时器，用于控制下落时间间隔
  private int nTime = 1000; //速度，创建记时器是使用
  private Root root; //要落下的方块的引用，即根类
  private GameTable gTable; //创建一个游戏桌
  private int nWhich; //标志创建哪一个要下落的方块
  private int tempnWhich; //标志下一个要创建的方块，即提前显示下落块
  private int nScore = 0; //每消一行加10分，用来记录总分数
  private boolean canMove = false; //标志是否响应键盘
  private Image myImage0, myImage1; //加载两个图片，用来覆盖背景和组成方块
  private boolean isRun = true; //标志是开始还是暂停，一钮两用

  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++) //重新给游戏桌置0标志
      for (int j = 0; j < gTable.y; j++) {
        gTable.myTable[i][j] = 0;
      }
    repaint();
    nScore = 0;
    switch (nWhich) { //产生新的方块
      case 1:
        root = new One();
        break;
      case 2:
        root = new Two();
        break;
      case 3:
        root = new Three();
        break;
      case 4:
        root = new Four();
        break;
      case 5:
        root = new Five();
        break;
      case 6:
        root = new Six();
        break;
      case 7:
        root = new Seven();
        break;
      case 8:
        root = new Eight();
        break;
      default:
        break;
    }
    tempnWhich = ( ( (int) Math.round(Math.random() * 12345)) % 8) + 1;
    nWhich = tempnWhich;
    root.begin();
    repaint();
    canMove = false;
  }



  public void paint(Graphics g) {
    for (int i = 0; i < gTable.x; i++) //根据桌子上的标记决定是否画方块
      for (int j = 0; j < gTable.y; j++) {
        if (gTable.myTable[i][j] == 1) { //有，画蓝方块
          g.drawImage(myImage1, 0 + i * (15 + 2) + 2, 0 + j * (15 + 2) + 2, this);
        }
        else if (gTable.myTable[i][j] == 0) { //无，画白方块
          g.drawImage(myImage0, 0 + i * (15 + 2) + 2, 0 + j * (15 + 2) + 2, this);
        }
      }
//      nextTo(g);//画下一个提前显示的方块
  }

  public void actionPerformed(ActionEvent e) {
    if (isRun) { //是开始
      timer.start();
      isRun = !isRun;
      canMove = true; //可以响应键盘
    }
    else { //是暂停
      timer.stop();
      isRun = !isRun;
      canMove = false; //不可以响应键盘
    }
  }

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

  public void update(Graphics g) {
    paint(g); //防止闪烁
  }
}