Bài 11 lập trình game andengine cơ bản - AnalogOnScreenControl

    Xin chào các bạn , bài hôm nay mình sẽ hướng dẫn các bạn sử dụng 1 loại controll trong andengine đó là analogOnScreenControl.
   Rất tuyệt đúng không . sau bài này các bạn sẽ tạo cho mình được một game với nhân vật di chuyển được rồi đó.

Video hướng dẫn : (like và G+ ủng hộ mình nhé!)




Tải cả project và ảnh của bài học Tại Đây

Code

package pham.tien.phong.example.controllinandengine;

import javax.microedition.khronos.opengles.GL10;

import org.anddev.andengine.engine.Engine;
import org.anddev.andengine.engine.camera.Camera;
import org.anddev.andengine.engine.camera.hud.controls.AnalogOnScreenControl;
import org.anddev.andengine.engine.camera.hud.controls.BaseOnScreenControl;
import org.anddev.andengine.engine.camera.hud.controls.AnalogOnScreenControl.IAnalogOnScreenControlListener;
import org.anddev.andengine.engine.handler.physics.PhysicsHandler;
import org.anddev.andengine.engine.options.EngineOptions;
import org.anddev.andengine.engine.options.EngineOptions.ScreenOrientation;
import org.anddev.andengine.engine.options.resolutionpolicy.RatioResolutionPolicy;
import org.anddev.andengine.entity.modifier.ScaleModifier;
import org.anddev.andengine.entity.modifier.SequenceEntityModifier;
import org.anddev.andengine.entity.scene.Scene;
import org.anddev.andengine.entity.scene.background.ColorBackground;
import org.anddev.andengine.entity.sprite.Sprite;
import org.anddev.andengine.entity.util.FPSLogger;
import org.anddev.andengine.opengl.texture.Texture;
import org.anddev.andengine.opengl.texture.TextureOptions;
import org.anddev.andengine.opengl.texture.region.TextureRegion;
import org.anddev.andengine.opengl.texture.region.TextureRegionFactory;
import org.anddev.andengine.ui.activity.BaseGameActivity;

import android.os.Bundle;
import android.app.Activity;
import android.util.Log;
import android.view.Menu;

public class MainActivity extends BaseGameActivity{

 
 private static final int CAMERA_WIDTH = 480;
 private static final int CAMERA_HEIGHT = 800;

 private Camera mCamera;
 
 private Texture mTexture;
 private TextureRegion mFaceTextureRegion;

 private Texture mOnScreenControlTexture;
 private TextureRegion mOnScreenControlBaseTextureRegion;
 private TextureRegion mOnScreenControlKnobTextureRegion;
 
 @Override
 public Engine onLoadEngine() {
  this.mCamera = new Camera(0, 0, CAMERA_WIDTH, CAMERA_HEIGHT);
  return new Engine(new EngineOptions(true, ScreenOrientation.PORTRAIT, 
    new RatioResolutionPolicy(CAMERA_WIDTH, CAMERA_HEIGHT), this.mCamera));
 
 }

 @Override
 public void onLoadResources() {

  TextureRegionFactory.setAssetBasePath("gfx/");

  this.mTexture = new Texture(256, 256, TextureOptions.BILINEAR_PREMULTIPLYALPHA);
  this.mFaceTextureRegion = TextureRegionFactory.createFromAsset(this.mTexture, this, "earth.png", 0, 0);

  this.mOnScreenControlTexture = new Texture(256, 128, TextureOptions.BILINEAR_PREMULTIPLYALPHA);
  this.mOnScreenControlBaseTextureRegion = TextureRegionFactory.createFromAsset(
    this.mOnScreenControlTexture, this, "onscreen_control_base.png", 0, 0);
  this.mOnScreenControlKnobTextureRegion = TextureRegionFactory.createFromAsset(
    this.mOnScreenControlTexture, this, "onscreen_control_knob.png", 128, 0);

  this.mEngine.getTextureManager().loadTextures(this.mTexture, this.mOnScreenControlTexture);

  
 }

 @Override
 public Scene onLoadScene() {
  this.mEngine.registerUpdateHandler(new FPSLogger());

  final Scene scene = new Scene();
  scene.setBackground(new ColorBackground(0.09804f, 0.6274f, 0.8784f));
  
  // load ảnh lên màn hình game
  final Sprite face = new Sprite(CAMERA_WIDTH/2, CAMERA_WIDTH/2, this.mFaceTextureRegion);
  final PhysicsHandler physicsHandler = new PhysicsHandler(face);
  
  face.registerUpdateHandler(physicsHandler);

  scene.attachChild(face);
  
  // load controll lên màn hình

  final AnalogOnScreenControl analogOnScreenControl = new AnalogOnScreenControl
    (50, CAMERA_HEIGHT - this.mOnScreenControlBaseTextureRegion.getHeight()*2,
      this.mCamera, this.mOnScreenControlBaseTextureRegion, 
      this.mOnScreenControlKnobTextureRegion, 0.1f, 200, 
      new IAnalogOnScreenControlListener() {
   @Override
   public void onControlChange(final BaseOnScreenControl pBaseOnScreenControl,
     final float pValueX, final float pValueY) {
    
    Log.v("pValueX= "+pValueX, "pValueY= "+pValueY);
    physicsHandler.setVelocity(pValueX * 200, pValueY * 200);
    
   }

   @Override
   public void onControlClick(final AnalogOnScreenControl pAnalogOnScreenControl) {
    face.registerEntityModifier(new SequenceEntityModifier
      (new ScaleModifier(0.25f, 1, 1.5f), new ScaleModifier(0.25f, 1.5f, 1)));
   }
  });
  analogOnScreenControl.getControlBase().setBlendFunction(GL10.GL_SRC_ALPHA, GL10.GL_ONE_MINUS_SRC_ALPHA);
  analogOnScreenControl.getControlBase().setScaleCenter(0, 128);
  analogOnScreenControl.refreshControlKnobPosition();

  scene.setChildScene(analogOnScreenControl);
  
  
  
  
  
  
  
  return scene;
 }

 @Override
 public void onLoadComplete() {
  // TODO Auto-generated method stub
  
 }

}

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