boxpanel.java

Java写的俄罗斯方块游戏

package box;

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

public class BoxPanel extends JPanel implements Runnable{
  private int x=250,y;
  private Point point[]=new Point[1000];
  private Point topPoint[]=new Point[25];
  private int currentNumber;
  Thread thread;
  private BoxCell boxcell;
  private boolean canGoOn=true;
  private int score=0;
  private int time=200;

  public BoxPanel() {
    for(int i=0;i<25;i++){
      topPoint[i] = new Point(10+i*20,660);
    }
    this.setSize(500,680);
    thread=new Thread(this);
    thread.start();
    boxcell=new BoxCell();
  }

  public void paintComponent(Graphics g){
    super.paintComponent(g);
    g.drawString("Scores:"+String.valueOf(score),15,9);
    g.fill3DRect(10,10,500,650,false);

    for(int i=0;i<24;i++){
      if (i%2==0) g.setColor(Color.gray);
      else g.setColor(Color.DARK_GRAY);
      g.drawLine(30 + 20 * i, 10, 30 + 20 * i, 660);
    }

    g.setColor(Color.red);
    for(int i=0;i<4;i++){
      for (int j = 0; j < 4; j++)
        if(boxcell.boxcell[i][j]==1)
          g.fill3DRect(x+20*i, y+20*j, 20, 20, true);
    }

    for(int i=0;i<currentNumber;i++){
      g.fill3DRect(point[i].x,point[i].y,20,20,true);
    }
  }

  public void run() {
    while(true){
      try{
        canGoOn = true;
        if (isTimeToStop()) {
          canGoOn = false;
          if(y<20){
            JOptionPane.showMessageDialog(this, "You Lose!!!", "Game Over", 1);
            return;
          }
        }
        if (y < 640 && canGoOn == true) y += 20;
        else {
          for(int i=0;i<4;i++)
            for(int j=0;j<4;j++)
              if(boxcell.boxcell[i][j]==1){
                point[currentNumber] = new Point(x+20*i, y+20*j);
                currentNumber++;
                if(y+20*j<topPoint[(x-10)/20+i].y)
                  topPoint[(x-10)/20+i].y=y+20*j;
              }

          x = 250;
          y = 0;
          boxCellDestroy();
          boxcell=new BoxCell();
        }
        thread.sleep(time-score>100?time-score/2:100);
        //thread.sleep(100);
        repaint();
      }catch(Exception e){}
    }
  }

  private void boxCellDestroy() {
    int tempScore=0;
    Point tempPoint=new Point();
    for(int i=0;i<currentNumber-1;i++)
      for(int j=i+1;j<currentNumber;j++){
        if(point[i].y<point[j].y){
          tempPoint=point[i];
          point[i]=point[j];
          point[j]=tempPoint;
        }
      }

    for(int i=0;i<currentNumber-25;i++){
      if (point[i].y == point[i + 24].y) {
        tempScore++;
        for (int j = i + 25; j < currentNumber; j++) {
          point[j].y+=20;
          point[i++] = point[j];
        }
        currentNumber -= 25;
        i=-1;

        for(int m=0;m<25;m++){
          //topPoint[m].y+=20;
          for(int a=currentNumber-1;a>=0;a--){
            if (point[a].x == topPoint[m].x) {
              topPoint[m].y = point[a].y;
              break;
            }
            topPoint[m].y = 660;
          }
       }
      repaint();
      }
    }
    switch(tempScore){
          case 1:{score++;break;}
          case 2:{score+=3;break;}
          case 3:{score+=5;break;}
          case 4:{score+=7;break;}
      }
  }

  private boolean isTimeToStop(){
  boolean isStop;
  for(int i=0;i<4;i++){
    for(int j=3;j>-1;j--)
      if(boxcell.boxcell[i][j]==1&&topPoint[(x-10)/20+i].y<=(y+(j+1)*20))return true;
  }
  return false;
}
  public void move(int key){
    switch(key){
      case 32:{boxcell=rotate();break;}
      case 40:{while(isTimeToStop()==false)y+=20;break;}
      case 37:{if(x>10&&isTimeToStop()==false)x-=20;break;}
      case 39:{if(x+(boxcell.width-1)*20<480&&isTimeToStop()==false)x+=20;break;}
      default:break;
    }
    repaint();
  }

  protected BoxCell rotate() {
    int tempY=y;
    int n=0;
    y+=boxcell.width*20;
    if(isTimeToStop()==true){
      y=tempY;
      return boxcell;
    }
    if(x>=400) x-=20*(boxcell.height-boxcell.width);
    BoxCell temp=new BoxCell();
    for(int i=0;i<4;i++)
      for(int j=0;j<4;j++)
        temp.boxcell[i][j]=0;

    for(int j=boxcell.height-1;j>=0;j--){
      for(int i=0;i<4;i++){
        temp.boxcell[n][i]=boxcell.boxcell[i][j];
      }
      n++;
    }
    temp.height=boxcell.width;
    temp.width=boxcell.height;
    y=tempY;
    return temp;
  }
}