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我正在为我的计算机科学课制作一个游戏，我正在尝试使用箭头键移动一个扩展 Bug 的角色对象。我应该把代码用箭头键移动到 Character 类还是 World 类中？代码应该是什么样的？现在我已经在 Character 类中得到了这段代码，它符合要求，但是当我尝试在网格中运行它时，当我按下箭头键时没有任何反应。

 public class Character extends Bug
{
Random pokemon;
public Character()
{

}

public void act(KeyEvent e)
{
        move(e);
        pokemon = new Random();
        if(pokemon.nextInt(10) == 5)
            System.out.println("It works!!");
}

public void move(KeyEvent e)
{
    Grid<Actor> gr = getGrid();
    Location loc = getLocation();
    if(gr == null)
        return;
    if( e.getKeyCode() == KeyEvent.VK_RIGHT)
    {
        if(!(getDirection() == 90))
            setDirection(90);
        else
        {

            Location next = loc.getAdjacentLocation(getDirection());
            if (gr.isValid(next))
                moveTo(next);
            else
                removeSelfFromGrid();
        }
    }
    else if( e.getKeyCode() == KeyEvent.VK_LEFT)
    {
        if(!(getDirection() == 270))
            setDirection(270);
        else
        {

            Location next = loc.getAdjacentLocation(getDirection());
            if (gr.isValid(next))
                moveTo(next);
            else
                removeSelfFromGrid();
        }
    }
    else if( e.getKeyCode() == KeyEvent.VK_UP)
    {
        if(!(getDirection() == 0))
            setDirection(0);
        else
        {

            Location next = loc.getAdjacentLocation(getDirection());
            if (gr.isValid(next))
                moveTo(next);
            else
                removeSelfFromGrid();
        }
    }
    else if( e.getKeyCode() == KeyEvent.VK_DOWN)
    {
        if(!(getDirection() == 180))
            setDirection(180);
        else
        {

            Location next = loc.getAdjacentLocation(getDirection());
            if (gr.isValid(next))
                moveTo(next);
            else
                removeSelfFromGrid();
        }
    }

public class Character extends Bug
{
Random pokemon;
public Character()
{

}

public void act(KeyEvent e)
{
        move(e);
        pokemon = new Random();
        if(pokemon.nextInt(10) == 5)
            System.out.println("It works!!");
}

public void move(KeyEvent e)
{
    Grid<Actor> gr = getGrid();
    Location loc = getLocation();
    if(gr == null)
        return;
    if( e.getKeyCode() == KeyEvent.VK_RIGHT)
    {
        if(!(getDirection() == 90))
            setDirection(90);
        else
        {

            Location next = loc.getAdjacentLocation(getDirection());
            if (gr.isValid(next))
                moveTo(next);
            else
                removeSelfFromGrid();
        }
    }
    else if( e.getKeyCode() == KeyEvent.VK_LEFT)
    {
        if(!(getDirection() == 270))
            setDirection(270);
        else
        {

            Location next = loc.getAdjacentLocation(getDirection());
            if (gr.isValid(next))
                moveTo(next);
            else
                removeSelfFromGrid();
        }
    }
    else if( e.getKeyCode() == KeyEvent.VK_UP)
    {
        if(!(getDirection() == 0))
            setDirection(0);
        else
        {

            Location next = loc.getAdjacentLocation(getDirection());
            if (gr.isValid(next))
                moveTo(next);
            else
                removeSelfFromGrid();
        }
    }
    else if( e.getKeyCode() == KeyEvent.VK_DOWN)
    {
        if(!(getDirection() == 180))
            setDirection(180);
        else
        {

            Location next = loc.getAdjacentLocation(getDirection());
            if (gr.isValid(next))
                moveTo(next);
            else
                removeSelfFromGrid();
        }
    }

此代码对于 KeyEvent 是否正确，我如何从 World 类调用此代码？任何帮助将不胜感激！

4

1 回答 1

1

在ActorWorld类中有一个方法boolean keyPressed(String description, Location loc)，该方法的唯一目的是在子类中被覆盖。description是在此处KeyStroke找到的格式，而 loc 是按下键时光标所在的位置。（虽然在你的情况下没关系）Location

所以简而言之，您应该KeyPressed在自定义CharacterWorld extends ActorWorld类中进行扩展。

于 2013-04-03T22:22:38.383 回答