mrnom game 기초 분석 - KeyboardHandler

import com.badlogic.androidgames.framework.Input.KeyEvent;

import com.badlogic.androidgames.framework.Pool;

import com.badlogic.androidgames.framework.Pool.PoolObjectFactory;

public class KeyboardHandler implements OnKeyListener{      //키보드 리스너 상속

boolean[] pressedKeys = new boolean[28];

Pool<KeyEvent> keyEventPool;

List<KeyEvent> keyEventsBuffer = new ArrayList<KeyEvent>();

List<KeyEvent> keyEvents = new ArrayList<KeyEvent>();

public KeyboardHandler(View view){

PoolObjectFactory<KeyEvent> factory = new PoolObjectFactory<KeyEvent>(){   Pool

@Override

public KeyEvent createObject() {

return new KeyEvent();

}

};

keyEventPool = new Pool<KeyEvent>(factory, 100);   // 키 입력을 Pool을 사용하여 100개의 object만 생성되도록 Garbage Collector 작동

view.setOnKeyListener(this);

view.setFocusableInTouchMode(true);  //터치모드 중에도 키보드 모드 사용 가능하게 설정(다중모드 지원)

view.requestFocus();    //뷰에 포커스 적용

}

@Override

public boolean onKey(View v, int keyCode, android.view.KeyEvent event) {

if(event.getAction() == android.view.KeyEvent.ACTION_MULTIPLE) return false;    // 같은키를 여러번 눌렀다면 리턴

synchronized(this){

KeyEvent keyEvent = keyEventPool.newObject();     //KeyEvent Input 객체 생성

keyEvent.keyCode = keyCode;

keyEvent.keyChar = (char)event.getUnicodeChar();

if(event.getAction()== android.view.KeyEvent.ACTION_DOWN){

keyEvent.type = KeyEvent.KEY_DOWN;       //type은 키가 눌림으로 설정

if(keyCode > 0 && keyCode < 127)

pressedKeys[keyCode] = true;        // 눌려진 KeyCode Array에 눌렸다는 true 표시

}

if(event.getAction()==android.view.KeyEvent.ACTION_UP){

keyEvent.type = KeyEvent.KEY_UP;

if(keyCode > 0 && keyCode < 127)

pressedKeys[keyCode] = false;

}

keyEventsBuffer.add(keyEvent);

}

return false;

}

public boolean isKeyPressed(int keyCode){      // 눌려진 키 상태를 리턴

if(keyCode < 0 || keyCode > 127)

return false;

return pressedKeys[keyCode];

}

public List<KeyEvent> getKeyEvents(){

synchronized(this){

int len = keyEvents.size();

for(int i=0; i < len; i++)

keyEventPool.free(keyEvents.get(i));

keyEvents.clear();

keyEvents.addAll(keyEventsBuffer);

keyEventsBuffer.clear();

return keyEvents;

}

}

}