[Tut] How to perform AndEngine Examples of Nicolas Gramlich - ChangeableTextExample

Here're some resources for this part:

vivabee.ttf

Create new folder named font in assets folder of the project

Copy font file above to the folder assets/font

Create new class named ChangeableTextExample in the package org.anddev.andengine.examples of the AndEngineDemo project, here is the code of this class:

package org.anddev.andengine.examples;

import org.anddev.andengine.engine.Engine;

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

import org.anddev.andengine.engine.handler.timer.ITimerCallback;

import org.anddev.andengine.engine.handler.timer.TimerHandler;

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.scene.Scene;

import org.anddev.andengine.entity.scene.background.ColorBackground;

import org.anddev.andengine.entity.text.ChangeableText;

import org.anddev.andengine.entity.util.FPSCounter;

import org.anddev.andengine.opengl.font.Font;

import org.anddev.andengine.opengl.texture.TextureOptions;

import org.anddev.andengine.opengl.texture.atlas.bitmap.BitmapTextureAtlas;

import org.anddev.andengine.ui.activity.BaseGameActivity;

import android.graphics.Color;

import android.graphics.Typeface;

/**

 * (c) 2010 Nicolas Gramlich

 * (c) 2011 Zynga

 *

 * @author Nicolas Gramlich

 * @since 20:06:15 - 08.07.2010

 */

public class ChangeableTextExample extends BaseGameActivity {

// ===========================================================

// Constants

// ===========================================================

private static final int CAMERA_WIDTH = 320;

private static final int CAMERA_HEIGHT = 240;

// ===========================================================

// Fields

// ===========================================================

private Camera mCamera;

private BitmapTextureAtlas mFontTexture;

private Font mFont;

// ===========================================================

// 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() {

this.mFontTexture = new BitmapTextureAtlas(256, 256, TextureOptions.BILINEAR_PREMULTIPLYALPHA);

this.mFont = new Font(this.mFontTexture, Typeface.createFromAsset(this.getAssets(), "font/vivabee.ttf"), 14, true, Color.argb(90, 51, 102, 102));

this.mEngine.getTextureManager().loadTexture(this.mFontTexture);

this.mEngine.getFontManager().loadFont(this.mFont);

}

@Override

public Scene onLoadScene() {

final FPSCounter fpsCounter = new FPSCounter();

this.mEngine.registerUpdateHandler(fpsCounter);

final Scene scene = new Scene();

scene.setBackground(new ColorBackground(0.09804f, 0.6274f, 0.8784f));

final ChangeableText elapsedText = new ChangeableText(10, 160, this.mFont, "Seconds elapsed:", "Seconds elapsed: XXXXX".length());

final ChangeableText fpsText = new ChangeableText(150, 140, this.mFont, "FPS:", "FPS: XXXXX".length());

scene.attachChild(elapsedText);

scene.attachChild(fpsText);

scene.registerUpdateHandler(new TimerHandler(1 / 20.0f, true, new ITimerCallback() {

@Override

public void onTimePassed(final TimerHandler pTimerHandler) {

elapsedText.setText("Seconds elapsed: " + ChangeableTextExample.this.mEngine.getSecondsElapsedTotal());

fpsText.setText("FPS: " + fpsCounter.getFPS());

}

}));

return scene;

}

@Override

public void onLoadComplete() {

}

// ===========================================================

// Methods

// ===========================================================

// ===========================================================

// Inner and Anonymous Classes

// ===========================================================

}

Open the AndroidManifest.xml and append the activity element (in red color) below the previous activity element (in light color) like this:

<activity

            android:name=".AutoParallaxBackgroundExample"

            android:label="@string/app_name" >

            <intent-filter>

                <action android:name="org.anddev.andengine.examples.AUTOPARALLAXBACKGROUNDEXAMPLE" />

                <category android:name="android.intent.category.DEFAULT" />

            </intent-filter>

        </activity>

        <activity

            android:name=".ChangeableTextExample"

            android:label="@string/app_name" >

            <intent-filter>

                <action android:name="org.anddev.andengine.examples.CHANGEABLETEXTEXAMPLE" />

                <category android:name="android.intent.category.DEFAULT" />

            </intent-filter>

        </activity>

Run the project (in debug mode) to re-generate apk file in the bin folderOpen and Edit the batch command file named r.bat in the bin folder with some commands like this:

adb install -r AndEngineDemo.apk
adb shell am start -n org.anddev.andengine.examples/.ChangeableTextExample

Run android emulator with virtualbox
Then run the batch file r.bat

The result's like this with changing text

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