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。我应该将使用箭头键移动的代码放在“角色”类中还是“世界”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，并且它符合要求，但是当我尝试在网格中运行它时，当我按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！
In the ActorWorld类有一个方法boolean keyPressed(String description, Location loc)此方法的唯一目的是在子类中重写。description is the KeyStroke在找到的格式中here http://docs.oracle.com/javase/6/docs/api/javax/swing/KeyStroke.html#getKeyStroke%28java.lang.String%29，loc 是Location按下该键时光标处于打开状态。 （尽管对你来说这并不重要）
简而言之，你应该扩展KeyPressed在定制中CharacterWorld extends ActorWorld class.
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