<分区>
我目前有一个类可以处理我想要的所有手势,它看起来像这样:
public class InputHandler implements GestureDetector.GestureListener{
private Player myPlayer;
public InputHandler(Player player){
myPlayer = player;
}
@Override
public boolean touchDown(float x, float y, int pointer, int button) {
return false;
}
@Override
public boolean tap(float x, float y, int count, int button) {
return false;
}
@Override
public boolean longPress(float x, float y) {
return false;
}
@Override
public boolean fling(float velocityX, float velocityY, int button) {
if(velocityY > 0){
myPlayer.onSwipeUp();
}
return false;
}
@Override
public boolean pan(float x, float y, float deltaX, float deltaY) {
return false;
}
@Override
public boolean panStop(float x, float y, int pointer, int button) {
return false;
}
@Override
public boolean zoom(float initialDistance, float distance) {
return false;
}
@Override
public boolean pinch(Vector2 initialPointer1, Vector2 initialPointer2, Vector2 pointer1, Vector2 pointer2) {
return false;
}
@Override
public void pinchStop() {
}
}
如您所见,我使用的唯一方法是“fling”方法,但我想在我的“MainScreen”类中创建手势监听器,因为它包含对“myPlayer”的引用,我想将其传递进入这个类,但我不确定如何创建监听器。到目前为止,我的构造函数中有这个:
public class GameScreen implements Screen {
private GameWorld world;
private GameRenderer renderer;
GestureDetector gd;
public GameScreen(){
float screenWidth = Gdx.graphics.getHeight();
float screenHeight = Gdx.graphics.getWidth();
float gameWidth = 816;
float gameHeight = screenHeight/(screenWidth/gameWidth);
int midpointY = (int)(gameHeight/2);
world = new GameWorld(midpointY);
renderer = new GameRenderer(world);
gd = new GestureDetector(new myGestureListener(world.getPlayer())); //Error here, 'myGestureListener' cannot be resolved
Gdx.input.setInputProcessor(gd);
}
我知道“myGestureListener”从未创建过,因此无法解决,但我对如何修复此错误同时确保正确传递引用感到困惑。如果我需要初始化一个 GestureListener,我该怎么做?
如果这个问题没有意义或没有解决方案,我提前道歉,我对使用 libGDX 框架进行编码仍然是新手。