我正在开发一个包含两个玩家的简单2D游戏。我用按键W,A,S和D移动玩家1.其他玩家由箭头键控制。
我面临的问题是,当按住任何箭头键移动播放器2时,按键W,S,D和A对播放器1起作用,反之亦然。
我已经看到了this之类的答案,但它没有解决我的问题。
我有一个主类Gameplay,并制作了两个内部类Player1Listener和Player2Listener(实现KeyListener)。
一个类的示例代码如下所示,其他子类看起来相同。
private class Player1Listener implements KeyListener
{
public void keyTyped(KeyEvent e) {}
public void keyReleased(KeyEvent e) {}
public void keyPressed(KeyEvent e) {
if(e.getKeyCode()== KeyEvent.VK_W)
{
player1right = false;
player1left = false;
player1down = false;
player1up = true;
player1Y-=10;
}
if(e.getKeyCode()== KeyEvent.VK_A)
{
player1right = false;
player1left = true;
player1down = false;
player1up = false;
player1X-=10;
}
if(e.getKeyCode()== KeyEvent.VK_S)
{
player1right = false;
player1left = false;
player1down = true;
player1up = false;
player1Y+=10;
}
if(e.getKeyCode()== KeyEvent.VK_D)
{
player1right = true;
player1left = false;
player1down = false;
player1up = false;
player1X+=10;
}
}
}
我在Gameplay构造函数中添加了这些关键的侦听器,如
addKeyListener(new player1Listener());
答案 0 :(得分:1)
private final Set<Character> Keyspressed = new HashSet<Character>();
public void keyPressed(KeyEvent e){
pressed.add(e.getKeyChar());
if (Keyspressed.size() > 1) {
//size is greator than one which means you
//have pressed more than one key.
//now your set contains all pressed keys. iterate it and fine out which was pressed.
foo(Keyspressed);
}
}
public void foo(Set<Character> Keyspressed){
boolean Apressed = false;
boolean Wpressed = false;
boolean Spressed = false;
boolean Dpressed = false;
for(Character e : Keyspressed){
if(e==KeyEvent.VK_A){
Apressed = true;
}else if(e==KeyEvent.VK_S){
Spressed = true;
}else if(e==KeyEvent.VK_D){
Dpressed = true;
}else if(e==KeyEvent.VK_W){
Wpressed = true;
}
}
if(Apressed && Spressed){
//your logic
}
}
您可以将所有按下的键添加到set<Character>
中并实现一个函数来迭代按下的键。