Java сетка кейлистайзеров

Поэтому я работаю над игрой, в которой актер перемещается пользователем в сетке, и если пространство, в котором пользователь пытается переместить актера определенного типа, тогда его можно переместить. Сетка состоит из класса, который я знаю, работает под названием PGrid, поэтому сетка выполнена из PGrids. Проблема в том, что keyListener вообще не работает, даже не распечатывать "привет". Ниже приведен код для PGame и moveGrid, где PGame обрабатывает материал moveGrid, но moveGrid вытягивает сетку (так же как JPanel). Я попробовал переместить keylistener из PGame в moveGrid, но это не сработало.

import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import javax.swing.JFrame;

//where all the different classes are put together

public class PGame implements KeyListener{ //may want to move the listener to moveGrid
private static moveGrid panel = new moveGrid(8,8); //taking something from moveGrid
private static PActor pguy = new PActor("Bill", 2, 2);
private boolean shallmove = false;
private int newx, newy;

public static void main(String[] args){
    //create a new frame 
    JFrame frame = new JFrame("PGame"); 
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
    //moveGrid panel = new moveGrid(8,8); //taking something from moveGrid
    frame.getContentPane().add(panel); 
    frame.pack(); 
    frame.setVisible(true);
    panel.requestFocus();

    //creating a "path" of places able to move to
    moveGrid.pgrids.get(0).changeType(1);
    moveGrid.pgrids.get(1).changeType(1);
    moveGrid.pgrids.get(2).changeType(1);
    moveGrid.pgrids.get(3).changeType(1);
    moveGrid.pgrids.get(10).changeType(1);
    moveGrid.pgrids.get(11).changeType(1);
    moveGrid.pgrids.get(19).changeType(1);
    moveGrid.pgrids.get(27).changeType(1);
    //moveGrid.pgrids.get(4).changeType(2);

    //start our pguy out in a position
    PGrid pguystart = new PGrid(2,0,0);
    moveGrid.pgrids.set(0,pguystart);

    panel.repaint();
}



public void keyPressed(KeyEvent e) {
    //here test if the grid can be updated
    //Test:

    pguy.canMove(3,3);
    pguy.Move(4,3,3);

    if(e.getKeyCode() == KeyEvent.VK_UP){
        newx = pguy.getx();
        newy = pguy.gety() - 1;
        shallmove = pguy.canMove(newx,newy);
        System.out.println("Hi");
    }else if(e.getKeyCode() == KeyEvent.VK_DOWN){
        newx = pguy.getx();
        newy = pguy.gety() + 1;
        shallmove = pguy.canMove(newx,newy);
    } else if(e.getKeyCode() == KeyEvent.VK_LEFT){
        newx = pguy.getx() - 1;
        newy = pguy.gety();
        shallmove = pguy.canMove(newx,newy);
    }else if(e.getKeyCode() == KeyEvent.VK_RIGHT){
        newx = pguy.getx() + 1;
        newy = pguy.gety();
        shallmove = pguy.canMove(newx,newy);
    }


}

public void keyReleased(KeyEvent e) { 


    System.out.println("Hi");

    //update the grid if it can here
    //somewhere in here add this:
    //moveGrid.repaint(); //tell movegrid to repaint
    if(shallmove = true){
        //change a certain spot to the actor
        PGrid temp = new PGrid(2,newx,newy);
        moveGrid.pgrids.set(pguy.getplace(),temp);
        //need to also change to old space to be back to what it was....
        //*here*
        pguy.Move(pguy.newPos,newx, newy);
        panel.repaint();
    }


}

public void keyTyped(KeyEvent e) { }


}

moveGrid:

//a grid in which stuff can move

import java.awt.*; 
import java.awt.event.*; 
import java.util.ArrayList;

import javax.swing.*;

public class moveGrid extends JPanel {
private int height;
private int width;
private int newx, newy;
private static PActor pguy = new PActor("Bill", 2, 2);
private boolean shallmove = false;
public static ArrayList<PGrid> pgrids = new ArrayList<PGrid>(); //an array full of grid boxes with type PGrid

public moveGrid(int height, int width){
    this.height = height;
    this.width = width;

    setPreferredSize(new Dimension(800, 800));
    //make all the values in pgrids equal to "Water" and give them locations
    int i = 0;
    for(int y = 0; y < height; y++){
        for(int x = 0; x < width; x++){
            PGrid pnull = new PGrid(0, x, y);
            pgrids.add(i, pnull);
            i++;
        }
    }


    //drawGrid();
}

/*public void drawGrid(Graphics g){
    g.drawRect(x,y,20,20);

} */

 public void addNotify() {
        super.addNotify();
        requestFocus();
    }

public void paintComponent(Graphics g){

    //PGrid curLoc = new PGrid(height, height, height);

    //go through and draw out the grid
    int q = 0;
    int midx = 0; //need to make these somehow so the squares get drawn at the center
    int midy = 0;
    for(int qh = 0; qh < height; qh++){
        for(int qw = 0; qw < width; qw++){
            PGrid pcur = pgrids.get(q); //
            int p = pcur.getType();
            if(p == 0){
                //may want to import a water looking image
                g.setColor(Color.BLUE);
                g.fillRect((40*qw)+midx,(40*qh)+midy,40,40);
                g.setColor(Color.BLACK);
                g.drawRect((40*qw)+midx,(40*qh)+midy,40,40);
            }else if(p == 1){
                //may want to import a better image
                g.setColor(Color.GREEN);
                g.fillRect((40*qw)+midx,(40*qh)+midy,40,40);
            }else if(p == 2){
                //draws the "character"
                g.setColor(Color.ORANGE);
                g.fillRect((40*qw)+midx,(40*qh)+midy,40,40);
            }
            q++;
        }
    }

    //here draw the character in the proper position
    //so like multiply the x and y by 40 

}
}

У меня также может быть ошибка в классе PActor, который, предположительно, движется Актером.

public class PActor {
private String name;
private int curx, cury;
int newPos;

public PActor(String name, int curx, int cury){
    this.name = name;
    this.curx = curx;
    this.cury = cury;
}

public boolean canMove(int x, int y){
    boolean abletomove = false;
    //test if the space that the user is trying to moveto can be moved to
    //use indexOf(a temp variable with values x and y also with type 1) to test
    PGrid togo = new PGrid(1,x,y);
    //now scan through pgrids in moveGrid to see the desired spot can be moved to
    for(int s = 0; s <= moveGrid.pgrids.size(); s++){
        PGrid temp = moveGrid.pgrids.get(s);
        //test if the temp space is equal
        if((togo.getType() == temp.getType()) && (togo.getx() == temp.getx()) && (togo.gety() == temp.gety())){
            abletomove = true;
            newPos = s;
            break; //stop scanning, as it is now unnecessary
        }
        else{ //do nothing
        }
    }

    //now test pgrids to see if there is a spot like such that is moveable


    return abletomove;
}
public int getplace(){
    return newPos;
}

public int getx(){
    return curx;
}

public int gety(){
    return cury;
}

public void Move(int pos, int x, int y){ 
    PGrid temp = new PGrid(2,x,y);
    moveGrid.pgrids.set(pos,temp);
}

public String toString(){
    return name + " ";
}
}