Android Open Source - droidengine2d Game Input Manager

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License

The source code is released under:
Apache License
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Java Source Code

/*   Copyright 2013-2014 Miguel Vicente Linares
 */* w  w w.jav a2  s  . c o m*/
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */
package com.miviclin.droidengine2d.input;

import android.view.KeyEvent;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnTouchListener;

import com.miviclin.droidengine2d.EngineActivity;
import com.miviclin.droidengine2d.gamestate.GameState;
import com.miviclin.droidengine2d.gamestate.OnGameStateChangeListener;
import com.miviclin.droidengine2d.graphics.GLView;

/**
 * Manages game input delegating event handling to the current {@link GameStateInputManager}.
 * 
 * @author Miguel Vicente Linares
 * 
 */
public class GameInputManager implements OnGameStateChangeListener, OnTouchListener {

  private GLView glView;
  private GameStateInputManager currentGameStateInputManager;

  /**
   * Creates a new GameInputManager.
   * 
   * @param glView GLView.
   */
  public GameInputManager(GLView glView) {
    this.glView = glView;
    this.currentGameStateInputManager = null;
    this.glView.setOnTouchListener(this);
  }

  @Override
  public void onGameStateChange(GameState previousGameState, GameState currentGameState) {
    if (currentGameState != null) {
      this.currentGameStateInputManager = currentGameState.getGameStateInputManager();
    } else {
      this.currentGameStateInputManager = null;
    }
  }

  @Override
  public boolean onTouch(View v, MotionEvent event) {
    if (currentGameStateInputManager != null) {
      currentGameStateInputManager.getTouchProcessor().queueCopyOfMotionEvent(event);
    }
    return true;
  }

  /**
   * This method is called from {@link EngineActivity#onKeyDown(int, KeyEvent)}.<br>
   * Queues a copy of the KeyEvent in the {@link KeyProcessor} of the current {@link GameStateInputManager} for later
   * processing.
   * 
   * @param keyCode Key code.
   * @param event KeyEvent.
   * @return Always returns true.
   */
  public boolean onKeyDown(int keyCode, KeyEvent event) {
    if (currentGameStateInputManager != null) {
      currentGameStateInputManager.getKeyProcessor().queueCopyOfKeyEvent(event);
    }
    return true;
  }

  /**
   * This method is called from {@link EngineActivity#onKeyUp(int, KeyEvent)}.<br>
   * Queues a copy of the KeyEvent in the {@link KeyProcessor} of the current {@link GameStateInputManager} for later
   * processing.
   * 
   * @param keyCode Key code.
   * @param event KeyEvent.
   * @return Always returns true.
   */
  public boolean onKeyUp(int keyCode, KeyEvent event) {
    if (currentGameStateInputManager != null) {
      currentGameStateInputManager.getKeyProcessor().queueCopyOfKeyEvent(event);
    }
    return true;
  }

  /**
   * Returns the GLView of this GameInputManager.
   * 
   * @return GLView
   */
  public GLView getGLView() {
    return glView;
  }

  /**
   * Sets the GLView of this GameInputManager.
   * 
   * @param glView GLView.
   */
  public void setGLView(GLView glView) {
    this.glView = glView;
    glView.setOnTouchListener(this);
  }

}
Java Source Code List
