キーボードでの操作がうまくいかない

前提・実現したいこと

java でブロック崩しを制作しているのですが、
そのゲームにおける　プレイヤーが操作しボールを打ち返す棒のクラスである　Bar クラス
を　キーボードの矢印キーをつかって動かしたい。

発生している問題・エラーメッセージ

そのゲームにおける　プレイヤーが操作しボールを打ち返す棒のクラスである　Bar クラス
にうまく　キー入力のイベントが伝わらず、キーを入力しても反応しない。

エラーメッセージ

該当のソースコード

ゲームのコントローラーのクラス
キーイベントをここで受け取ってるつもり。

java
1import objectdraw.*;
2import java.awt.*;
3import java.util.*;
4import java.awt.event.KeyAdapter;
5import java.awt.event.KeyEvent;
6public class BlockBreaks extends WindowController {
7    private final int margin=5;
8    private boolean start=false;
9    private MoveBall ball;
10    public final int size=80;
11    private Bar bar;
12    MyKeyAdapter myKeyAdapter;
13    @Override public void begin(){
14        ball=new MoveBall(0,0,canvas);
15        ball.hide();
16        ball.setColor(Color.RED);
17        bar=new Bar(150,300,size,canvas,ball);
18        createBlocks();
19        createRect();
20        myKeyAdapter = new MyKeyAdapter();
21        addKeyListener(myKeyAdapter);
22    }
23
24    @Override public void onMouseClick(Location p){
25        if(!start){
26            ball.moveTo(p);
27            ball.showAndStart();
28            start=true;
29        }
30    }
31
32    public void createBlocks(){
33        double Block_WIDTH=(canvas.getWidth()-2*margin)/12,
34        Block_HEIGHT=10,
35        WALL_X=margin,
36        WALL_HEIGHT=4,
37        WALL_WIDTH=12,
38        WALL_Y=4*margin+Block_HEIGHT*WALL_HEIGHT;
39        double BlockX = WALL_X;
40        double BlockY = WALL_Y;
41        
42        int level = 0;         // Number of levels drawn so far
43        int BlocksInLevel = 0; // Number of rects drawn in
44        // the current level
45        
46        
47        while ( level < WALL_HEIGHT) {
48            BlocksInLevel = 0;
49            BlockX = WALL_X;
50            // Draw one row of rects
51            while ( BlocksInLevel < WALL_WIDTH ) {
52                new Block( BlockX, BlockY, Block_WIDTH,Block_HEIGHT, canvas ,ball);
53                BlockX = BlockX + Block_WIDTH;
54                BlocksInLevel++;
55                
56            }
57            BlockY = BlockY - Block_HEIGHT;
58            level++;
59        }
60
61    }
62
63    public void createRect(){
64        new Line(margin,4*margin,margin,canvas.getHeight()-margin,canvas);
65        
66        new Line(canvas.getWidth()-margin,canvas.getHeight()-margin,canvas.getWidth()-margin,4*margin,canvas);
67        new Line(canvas.getWidth()-margin,4*margin,margin,4*margin,canvas);
68    }
69
70}
71class Block extends ActiveObject{
72    DrawingCanvas canvas;
73    FilledRect rect;
74    FramedRect Rect;
75    MoveBall ball;
76    final int pause_time=6;
77    private boolean removed=false;
78    
79    public Block(double x,double y,double width,double height,DrawingCanvas Canvas,MoveBall b){
80        canvas=Canvas;
81        ball=b;
82        rect=new FilledRect(x,y,width,height,canvas);
83        Rect=new FramedRect(x,y,width,height,canvas);
84        Rect.setColor(Color.YELLOW);
85        start();
86        
87    }
88
89    @Override public void run(){
90        Location up_ri,up_lef,dow_ri,dow_lef;
91       
92        while(!removed){
93            up_ri=new Location(ball.getX(),ball.getY());
94            up_lef=new Location(ball.getX()+ball.getSize(),ball.getY());
95            dow_ri=new Location(ball.getX(),ball.getY()+ball.getSize());
96            dow_lef=new Location(ball.getX()+ball.getSize(),ball.getY()+ball.getSize());
97            if(rect.contains(up_ri)&&rect.contains(up_lef)||rect.contains(dow_ri)&&rect.contains(dow_lef)){
98                ball.turnMoveY();
99                removeFromCanvas();
100                removed=true;
101            }else if(rect.contains(up_ri)&&rect.contains(dow_ri)||rect.contains(up_lef)&&rect.contains(dow_lef)){
102                ball.turnMoveX();
103                removeFromCanvas();
104                removed=true;
105            }else if (rect.contains(up_ri)||rect.contains(up_lef)||rect.contains(dow_ri)||rect.contains(dow_lef)){
106                ball.turnMoveY();
107                ball.turnMoveX();
108                removeFromCanvas();
109                removed=true;
110            }
111            pause(pause_time);
112        }  
113         
114         
115    }
116
117    //public boolean contains(Location p){
118        //return rect.contains(p);
119    //}
120
121    public void removeFromCanvas(){
122        rect.removeFromCanvas();
123
124        Rect.removeFromCanvas();
125    }    
126    
127}
128
129class MyKeyAdapter extends KeyAdapter{
130    
131    @Override public void keyPressed(KeyEvent e){
132        int keycode=e.getKeyCode();
133        switch(keycode){
134          case KeyEvent.VK_RIGHT:
135               Bar.ri_key=true;
136               break;
137          case KeyEvent.VK_LEFT:
138               Bar.lef_key=true;
139               break;
140        }
141    }
142
143    @Override public void keyReleased(KeyEvent e){
144        Bar.ri_key=false;
145        Bar.lef_key=false;
146    }
147}

Bar クラス

java
1import java.applet.Applet;
2import objectdraw.*;
3import java.awt.*;
4import java.awt.event.KeyListener;
5import java.awt.event.KeyEvent;
6public class Bar extends ActiveObject {
7    private DrawingCanvas canvas;
8    private FilledRect bar;
9    MoveBall ball;
10    public static boolean lef_key=false,ri_key=false,gamestart=false;
11    private final int pause_time=6,speed=5,bar_height=5;
12    
13    public Bar(double x,double y,int length,DrawingCanvas Canvas,MoveBall Ball){
14        canvas=Canvas; 
15        ball=Ball;
16        gamestart=true;
17        bar=new FilledRect(x,y,length,bar_height,canvas);
18        start();
19    }
20    
21    public Bar(Location point,int length,DrawingCanvas Canvas,MoveBall Ball){
22        this(point.getX(),point.getY(),length,Canvas,Ball);
23    }
24    @Override public void run(){
25        Location up_ri,up_lef,dow_ri,dow_lef;
26        while(gamestart){
27            if(lef_key){
28                bar.move(-speed,0);
29            }  else if(ri_key){
30                bar.move(speed,0);
31            }  
32            up_ri=new Location(ball.getX(),ball.getY());
33            up_lef=new Location(ball.getX()+ball.getSize(),ball.getY());
34            dow_ri=new Location(ball.getX(),ball.getY()+ball.getSize());
35            dow_lef=new Location(ball.getX()+ball.getSize(),ball.getY()+ball.getSize());
36            if(bar.contains(up_ri)&&bar.contains(up_lef)||bar.contains(dow_ri)&&bar.contains(dow_lef)){
37                ball.turnMoveY();
38            }else if(bar.contains(up_ri)&&bar.contains(dow_ri)||bar.contains(up_lef)&&bar.contains(dow_lef)){
39                ball.turnMoveX();
40            }else if (bar.contains(up_ri)||bar.contains(up_lef)||bar.contains(dow_ri)||bar.contains(dow_lef)){
41                ball.turnMoveY();
42                ball.turnMoveX();
43            }
44            pause(pause_time);
45        }
46    }
47    public void move(double dx,double dy){
48        bar.move(dx,dy);
49    }
50}
51

ボールのクラス　MoveBall
今回の件には関係なさそう

java
1import objectdraw.*;
2import java.awt.*;
3
4public class MoveBall extends ActiveObject{
5    private FilledOval ball;
6    public final int pauseTime=33,
7    margin=5;
8    private int size=5,
9    ball_speed=8;
10    DrawingCanvas canvas;
11    boolean move;
12    
13    //Line line_1,line_2,line_3,line_4;
14    RandomIntGenerator generator1=new RandomIntGenerator(-5,5);
15    RandomIntGenerator generator2=new RandomIntGenerator(-3,-5);
16    private    int move_x=generator1.nextValue();
17    private    int move_y=generator2.nextValue();
18    public MoveBall(double x,double y,DrawingCanvas Canvas){
19        canvas=Canvas;
20        ball=new FilledOval(x,y,size,size,Canvas);
21        
22    }
23    public MoveBall(Location point,DrawingCanvas Canvas){
24        this(point.getX(),point.getY(),Canvas);    
25    }
26    public void showAndStart(){
27        ball.show();
28        start();
29    }
30    public void moveTo(Location p){
31        ball.moveTo(p);
32    }
33    public void hide(){
34        ball.hide();
35    }
36    @Override public void run(){
37        move=true;
38        while(move){
39            ball.move(move_x,move_y);
40            pause(pauseTime);
41            if(margin>ball.getX()||(canvas.getWidth()-2*margin)<ball.getX()){
42                move_x=-move_x;
43            } else if(4*margin>ball.getY()){
44                move_y=-move_y;
45            }
46            
47      }
48      
49    }
50    
51    public boolean contains(Location p){
52        return ball.contains(p);
53    }
54    public void setColor(Color color){
55        ball.setColor(color);
56    }
57    public double getX(){
58        return ball.getX();
59    }
60    public double getY(){
61        return ball.getY();
62    }
63    public void turnMoveX(){
64        move_x=-move_x;
65    }
66    public void turnMoveY(){
67        move_y=-move_y;
68    }
69    public int getSize(){
70        return size;    
71    }
72}
73