//Little Box Game by AlexYui
//Game.java By 1093710210@ HIT
import javax.swing.*;
import java.awt.event.*;
import java.awt.geom.*;
import java.awt.*;
import java.util.*;
public class Game{
 public static void main(String[] agrs){
  MyFrame gameframe = new MyFrame();
  gameframe.setTitle("Java Box Game By AlexYui");
  gameframe.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  gameframe.setVisible(true);
 }
}
//框架
class MyFrame extends JFrame {
 private int flag = 0;
 protected double x[] = {0,0,270,0,270};
 protected double y[] = {0,0,0,270,270}; 
 protected int winner[]={0,0,0,0,0};
 public static final int DEFAULT_WIDTH = 317;
 public static final int DEFAULT_HEIGHT = 339;
 public MyFrame(){
 MyPanel a = new MyPanel();
 addKeyListener(new MyKeyListener());
 this.add(a);
 setSize(DEFAULT_WIDTH,DEFAULT_HEIGHT);
 }
class MyPanel extends JPanel{
 public MyPanel(){}
 public void paint(Graphics g){
 super.paint(g);
 Graphics2D g2 = (Graphics2D)g;
 Rectangle2D rect1 = new Rectangle2D.Double(x[1],y[1],30f,30f);
 Rectangle2D rect2 = new Rectangle2D.Double(x[2],y[2],30f,30f);
 Rectangle2D rect3 = new Rectangle2D.Double(x[3],y[3],30f,30f);
 Rectangle2D rect4 = new Rectangle2D.Double(x[4],y[4],30f,30f);
 //畫中間的四個方框
 g2.setPaint(Color.RED);
 g2.drawRect(120,120 ,30,30);
 g2.drawRect(120,150 ,30,30);
 g2.drawRect(150,120 ,30,30);
 g2.drawRect(150,150 ,30,30);
 //填充四個角上的方塊
 g2.setPaint(Color.BLUE);
 if(winner[1] == 0)g2.fill(rect1);
 if(winner[2] == 0)g2.fill(rect2);
 if(winner[3] == 0)g2.fill(rect3);
 if(winner[4] == 0)g2.fill(rect4);
 g2.setPaint(Color.RED);
 //將已經(jīng)選擇的方塊涂成紅色
 if(flag == 1) g2.fill(rect1);  
   if(flag == 2) g2.fill(rect2);
   if(flag == 3) g2.fill(rect3);
   if(flag == 4)   g2.fill(rect4);
   g2.setPaint(Color.BLUE);
 if(winner[1] == 1)g2.fill(rect1);
 if(winner[2] == 1)g2.fill(rect2);
 if(winner[3] == 1)g2.fill(rect3);
 if(winner[4] == 1)g2.fill(rect4);
  g2.setPaint(Color.RED);
   if(winner[1] == 1 && winner[2] == 1 && winner[3] == 1 && winner[4] == 1)
 g2.drawString("Succes! You Won!",100,75);
 //保持邊框的顏色
 g2.drawRect(120,120 ,30,30);
 g2.drawRect(120,150 ,30,30);
 g2.drawRect(150,120 ,30,30);
 g2.drawRect(150,150 ,30,30);
   repaint();
 }
}
 class MyKeyListener implements KeyListener{
   //overide
   public void keyPressed(KeyEvent event){ 
  int keyCode = event.getKeyCode();
     if(keyCode == KeyEvent.VK_1){flag = 1;}
     if(keyCode == KeyEvent.VK_2){flag = 2;}
     if(keyCode == KeyEvent.VK_3){flag = 3;}
     if(keyCode == KeyEvent.VK_4){flag = 4;}
     if(keyCode == KeyEvent.VK_UP){move(0,-30,flag);win();}
     if(keyCode == KeyEvent.VK_DOWN){move(0,30,flag);win();}
     if(keyCode == KeyEvent.VK_LEFT){move(-30,0,flag);win();}
     if(keyCode == KeyEvent.VK_RIGHT){move(30,0,flag);win();}
     }
   public void keyReleased(KeyEvent event){}
   public void keyTyped(KeyEvent event){}
   }
   //用于判別基本規(guī)則，移動方塊
   void move(int mx,int my,int mflag){
     int i;
     boolean teller = false;
     x[mflag] +=mx;
     y[mflag] +=my;
     if(! ((x[flag] >= 0 && x[flag]<=270)&&(y[flag] >= 0 && y[flag]<=270))){
     x[mflag] -=mx;
     y[mflag] -=my;
       }
     for(i = 1;i<5;i++){
       if(mflag != i)
       if(x[mflag] == x[i] && y[mflag] == y[i])
       teller = true;
       }
     if(teller == true){
    x[mflag] -= mx;
     y[mflag] -= my;
       }
     }
     //用于判別已經(jīng)進(jìn)入符合條件區(qū)域的方塊
     void win(){
       int j1,j2;
       for(j1=1;j1<5;j1++)
       if((x[j1]<=150&&x[j1]>=120)&&(y[j1]<=150&&y[j1]>=120))
         winner[j1]=1;
       for(j2=1;j2<5;j2++)
       if(!((x[j2]<=150&&x[j2]>=120)&&(y[j2]<=150&&y[j2]>=120)))
         winner[j2]=0;
     }
}