Java 按下多个键
所以我想弄清楚如何使我的飞船对象同时旋转和前后移动。我做了一些研究,它说我应该使用布尔来让KeyListener同时接受多个按键。但当我尝试它时,它不允许我同时做两件事。它用一把新钥匙代替了我手中的旧钥匙。这是我的密码Java 按下多个键,java,awt,keylistener,Java,Awt,Keylistener,所以我想弄清楚如何使我的飞船对象同时旋转和前后移动。我做了一些研究,它说我应该使用布尔来让KeyListener同时接受多个按键。但当我尝试它时,它不允许我同时做两件事。它用一把新钥匙代替了我手中的旧钥匙。这是我的密码 import java.awt.event.KeyEvent; import java.awt.event.KeyListener; public class ControlledObject extends SimpleSpaceObject implements KeyLi
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
public class ControlledObject extends SimpleSpaceObject implements KeyListener{
public ControlledObject(Point[] inShape, Point inOffset, double inRotation) {
super(inShape, inOffset, inRotation);
}
boolean KeyHeld = false;
public void PressedW(boolean keyW)
{
double RotateX = Math.cos(Math.toRadians(super.shape.getRotation()));
double RotateY = Math.sin(Math.toRadians(super.shape.getRotation()));
if(keyW)
super.shape.move(2*RotateX,2*RotateY);
else
super.shape.move(0,0);
}
public void PressedD(boolean keyD)
{
if(keyD)
super.shape.rotate(5);
else
super.shape.rotate(0);
}
public void PressedA(boolean keyA)
{
if(keyA)
super.shape.rotate(-5);
else
super.shape.rotate(0);
}
public void PressedS(boolean keyS)
{
double RotateX = Math.cos(Math.toRadians(super.shape.getRotation()));
double RotateY = Math.sin(Math.toRadians(super.shape.getRotation()));
if(keyS)
super.shape.move(-2*RotateX,-2*RotateY);
else
super.shape.move(0, 0);
}
@Override
public void keyPressed(KeyEvent e) {
KeyHeld = true;
if(e.getKeyChar() == 'w')
PressedW(KeyHeld);
if(e.getKeyChar() == 'd')
PressedD(KeyHeld);
if(e.getKeyChar() == 'a')
PressedA(KeyHeld);
if(e.getKeyChar() == 's')
PressedS(KeyHeld);
}
@Override
public void keyReleased(KeyEvent e) {
KeyHeld = false;
PressedW(KeyHeld);
PressedD(KeyHeld);
PressedA(KeyHeld);
PressedS(KeyHeld);
}
@Override
public void keyTyped(KeyEvent e) {
}
}
我知道代码并不完美,但我正在尝试一次解决一件事。在
keyreased
中,您没有测试哪个键被释放,而是正在重置所有键。相反,当按键时,将其标志设置为true
,释放时,将其标志设置为false
。然后使用一个最新的循环来决定这些标志的实际含义…方法名不应该以大写字符开头。告诉我一个方法名是以大写字符开头的JavaAPI。不要制定自己的惯例!