TextureOptionsExample.java :  » UnTagged » andengineexamples » org » anddev » andengine » examples » Android Open Source

package org.anddev.andengine.examples;

import org.anddev.andengine.engine.Engine;
import org.anddev.andengine.engine.camera.Camera;
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.IEntity;
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;

/**
 * @author Nicolas Gramlich
 * @since 11:54:51 - 03.04.2010
 */
public class TextureOptionsExample extends BaseExample {
  // ===========================================================
  // Constants
  // ===========================================================

  private static final int CAMERA_WIDTH = 720;
  private static final int CAMERA_HEIGHT = 480;

  // ===========================================================
  // Fields
  // ===========================================================

  private Camera mCamera;

  private Texture mTexture;
  private Texture mTextureBilinear;
  private Texture mTextureRepeating;

  private TextureRegion mFaceTextureRegion;
  private TextureRegion mFaceTextureRegionBilinear;
  private TextureRegion mFaceTextureRegionRepeating;

  // ===========================================================
  // Constructors
  // ===========================================================

  // ===========================================================
  // Getter & Setter
  // ===========================================================

  // ===========================================================
  // Methods for/from SuperClass/Interfaces
  // ===========================================================

  @Override
  public Engine onLoadEngine() {
    this.mCamera = new Camera(0, 0, CAMERA_WIDTH, CAMERA_HEIGHT);
    return new Engine(new EngineOptions(true, ScreenOrientation.LANDSCAPE, new RatioResolutionPolicy(CAMERA_WIDTH, CAMERA_HEIGHT), this.mCamera));
  }

  @Override
  public void onLoadResources() {
    TextureRegionFactory.setAssetBasePath("gfx/");
    this.mTexture = new Texture(32, 32, TextureOptions.DEFAULT);
    this.mFaceTextureRegion = TextureRegionFactory.createFromAsset(this.mTexture, this, "face_box.png", 0, 0);

    this.mTextureBilinear = new Texture(32, 32, TextureOptions.BILINEAR_PREMULTIPLYALPHA);
    this.mFaceTextureRegionBilinear = TextureRegionFactory.createFromAsset(this.mTextureBilinear, this, "face_box.png", 0, 0);

    this.mTextureRepeating = new Texture(32, 32, TextureOptions.REPEATING_PREMULTIPLYALPHA);
    this.mFaceTextureRegionRepeating = TextureRegionFactory.createFromAsset(this.mTextureRepeating, this, "face_box.png", 0, 0);
    /* The following statement causes the Texture to be printed horizontally 10x on any Sprite that uses it.
     * So we will later increase the width of such a sprite by the same factor to avoid distortion. */
    this.mFaceTextureRegionRepeating.setWidth(10 * this.mFaceTextureRegionRepeating.getWidth());

    this.mEngine.getTextureManager().loadTextures(this.mTexture, this.mTextureBilinear, this.mTextureRepeating);
  }

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

    final Scene scene = new Scene(1);
    scene.setBackground(new ColorBackground(0.09804f, 0.6274f, 0.8784f));

    final int centerX = (CAMERA_WIDTH - this.mFaceTextureRegion.getWidth()) / 2;
    final int centerY = (CAMERA_HEIGHT - this.mFaceTextureRegion.getHeight()) / 2;

    final Sprite face = new Sprite(centerX - 160, centerY - 40, this.mFaceTextureRegion);
    face.setScale(4);

    final Sprite faceBilinear = new Sprite(centerX + 160, centerY - 40, this.mFaceTextureRegionBilinear);
    faceBilinear.setScale(4);

    /* Make sure sprite has the same size as mTextureRegionRepeating.
     * Giving the sprite twice the height shows you'd also have to change the height of the TextureRegion! */
    final Sprite faceRepeating = new Sprite(centerX - 160, centerY + 100, this.mFaceTextureRegionRepeating.getWidth(), this.mFaceTextureRegionRepeating.getHeight() * 2, this.mFaceTextureRegionRepeating);

    final IEntity lastChild = scene.getLastChild();
    lastChild.attachChild(face);
    lastChild.attachChild(faceBilinear);
    lastChild.attachChild(faceRepeating);

    return scene;
  }

  @Override
  public void onLoadComplete() {

  }

  // ===========================================================
  // Methods
  // ===========================================================

  // ===========================================================
  // Inner and Anonymous Classes
  // ===========================================================
}