我正在尝试创建一个位图,存储在类Player中,按照我的手指,而不是让它能够传送"传送"。我首先尝试了这段代码:
@Override
public boolean onTouchEvent(MotionEvent event) {
pointerX = (int)event.getX();
pointerY = (int)event.getY();
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
pointerX = (int)event.getX();
pointerY = (int)event.getY();
if (player.playerAlive) {
if((event.getX() > player.getX() || event.getX() < player.getX() + player.getWidth()) &&
(event.getY() > player.getY() || event.getY() < player.getY() + player.getHeight())) {
isDown = true;
}
}
break;
case MotionEvent.ACTION_MOVE:
if(isDown){
player.move(true);
}
break;
case MotionEvent.ACTION_UP:
isDown = false;
break;
}
return true;
}
但是我注意到,在点击时即使手指轻微移动也会导致Action_MOVE,所以我将ACTION_MOVE中的代码替换为:
if(isDown){
if(event.getX() < pointerX - 20 || event.getX() > pointerX + 20)
player.move(true);
if(pointerY < event.getY() - 20 || pointerY > event.getY() + 20)
player.move(true);
}
但是这导致玩家根本没有移动,当玩家在正确地跟随手指之前,它也会传送&#34;传送&#34;如果我轻拍球员。我怎样才能摆脱传送&#34;行为正常吗?
答案 0 :(得分:1)
使用ACTION_MOVE是正确的,但是当pointerX设置为等于event.getX()时,你将event.getX()与pointerX进行比较。你的意思是将它与player.getX()进行比较吗?