i'm using AndEngine framwork for test but i draw my sprite in (0,0) but it draw in bottom right :| why?
this is my code:
#Override
public EngineOptions onCreateEngineOptions() {
camera = new Camera(0, 0, CAMERA_WIDTH, CAMERA_HEIGHT);
EngineOptions options = new EngineOptions(true, ScreenOrientation.LANDSCAPE_FIXED,
new FillResolutionPolicy(), camera);
options.getAudioOptions().setNeedsMusic(true).setNeedsSound(true);
options.setWakeLockOptions(WakeLockOptions.SCREEN_ON);
return options;
}
#Override
protected Scene onCreateScene() {
....
head = new Sprite(0, 0, head_region, getVertexBufferObjectManager());
Related
I have a problem with a camera, I want to take a screenshot but I get this error:
Flare renderer to update not found UnityEngine.Camera:Render()
c__Iterator4:MoveNext() (at
Assets/Scripts/ActionCam.cs:43)
My code:
public IEnumerator TakeScreenshot() {
yield return new WaitForEndOfFrame();
Camera camOV = _Camera;
RenderTexture currentRT = RenderTexture.active;
RenderTexture.active = camOV.targetTexture;
camOV.Render(); // here is the problem...
Texture2D imageOverview = new Texture2D(camOV.targetTexture.width, camOV.targetTexture.height, TextureFormat.RGB24, false);
imageOverview.ReadPixels(new Rect(0, 0, camOV.targetTexture.width, camOV.targetTexture.height), 0, 0);
imageOverview.Apply();
RenderTexture.active = currentRT;
byte[] bytes = imageOverview.EncodeToPNG();
string path = ScreenShotName(Convert.ToInt32(imageOverview.width), Convert.ToInt32(imageOverview.height));
System.IO.File.WriteAllBytes(path, bytes);
}
There are my camera settings:
If I deactivate the "Flare Layer" I don't get this error, but my screenshots are more or less empty, only the skybox:
any idea?
I Use 3 types of screenshot in unity:
Application.CaptureScreenshot(ScreenSgotFile): Not using anymore because I prefer methods that stores the screenshots in memory. (I don't need the file because it is attached to a MailMessage and sended by an SmtpClient)
OnPostRender (it must be attached to a camera):
void OnPostRender(){
Texture2D ScreenShot=new Texture2D(Screen.width, Screen.height, TextureFormat.RGB24, false);
RenderTexture.active=null;
ScreenShot.ReadPixels(new Rect(0, 0, Screen.width, Screen.height), 0, 0);
ScreenShot.Apply();
byte[] PngData=ScreenShot.EncodeToPNG();
PngStream = new MemoryStream(PngData);
//File.WriteAllBytes(FileShot, PngData);
// Preview on a sprite
Sprite Spr=Sprite.Create(ScreenShot, new Rect(0, 0, ScreenShot.width, ScreenShot.height),Vector2.zero, 100);
Preview.sprite=Spr;
Preview.gameObject.SetActive(true);
}
The same code but at the end of frame:
void Update(){
...
StartCoroutine(ScreenShotAtEndOfFrame());
}
public IEnumerator ScreenShotAtEndOfFrame(){
yield return new WaitForEndOfFrame();
Texture2D ScreenShot=new Texture2D(Screen.width, Screen.height, TextureFormat.RGB24, false);
RenderTexture.active=null; `enter code here`
ScreenShot.ReadPixels(new Rect(0, 0, Screen.width, Screen.height), 0, 0);
ScreenShot.Apply();
byte[] PngData=ScreenShot.EncodeToPNG();
PngStream = new MemoryStream(PngData);
//File.WriteAllBytes(FileShot, PngData);
// Preview on a sprite
Sprite Spr=Sprite.Create(ScreenShot, new Rect(0, 0, ScreenShot.width, ScreenShot.height),Vector2.zero, 100);
Preview.sprite=Spr;
Preview.gameObject.SetActive(true);
}
enter image description hereI have 4 sprites. I am placing all 4 sprites in different place on the mobile screen. But it is taking the last added sprite image that is (sprite4.png) all the sprites images(sprite1.png, sprite2.png, sprite3.png and sprite4.png).
In short its displaying all the sprite images same.
The code is given below, please share your experience
// the below code is running without error but displaying same images in all the sprites
package com.example.test1;
import org.andengine.engine.camera.Camera;
import org.andengine.engine.options.EngineOptions;
import org.andengine.engine.options.ScreenOrientation;
import org.andengine.engine.options.resolutionpolicy.RatioResolutionPolicy;
import org.andengine.entity.scene.Scene;
import org.andengine.entity.scene.background.Background;
import org.andengine.entity.sprite.Sprite;
import org.andengine.entity.util.FPSLogger;
import org.andengine.input.touch.TouchEvent;
import org.andengine.opengl.texture.TextureOptions;
import org.andengine.opengl.texture.atlas.bitmap.BitmapTextureAtlas;
import org.andengine.opengl.texture.atlas.bitmap.BitmapTextureAtlasTextureRegionFactory;
import org.andengine.opengl.texture.region.ITextureRegion;
/*;
* (c) 2010 Nicolas Gramlich
* (c) 2011 Zynga
*
* #author Nicolas Gramlich
* #since 15:13:46 - 15.06.2010
*/
public class Puzzle extends GameActivity {
// ===========================================================
// Constants
// ===========================================================
private static final int CAMERA_WIDTH = 720;
private static final int CAMERA_HEIGHT = 480;
final Scene scene = new Scene();
// ===========================================================
// Fields
// ===========================================================
private BitmapTextureAtlas mBitmapTextureAtlas;
private ITextureRegion spriteTextureRegion1;
private ITextureRegion spriteTextureRegion2;
private ITextureRegion spriteTextureRegion3;
private ITextureRegion spriteTextureRegion4;
// ===========================================================
// Constructors
// ===========================================================
// ===========================================================
// Getter & Setter
// ===========================================================
// ===========================================================
// Methods for/from SuperClass/Interfaces
// ===========================================================
#Override
public EngineOptions onCreateEngineOptions() {
// Toast.makeText(this, "Touch & Drag the face!", Toast.LENGTH_LONG).show();
final Camera camera = new Camera(0, 0, CAMERA_WIDTH, CAMERA_HEIGHT);
return new EngineOptions(true, ScreenOrientation.LANDSCAPE_FIXED, new RatioResolutionPolicy(CAMERA_WIDTH, CAMERA_HEIGHT), camera);
}
#Override
public void onCreateResources() {
BitmapTextureAtlasTextureRegionFactory.setAssetBasePath("gfx/");
this.mBitmapTextureAtlas = new BitmapTextureAtlas(this.getTextureManager(), 96, 96, TextureOptions.BILINEAR);
this.spriteTextureRegion1 = BitmapTextureAtlasTextureRegionFactory.createFromAsset(this.mBitmapTextureAtlas, this, "sprite1.png", 0, 0);
this.spriteTextureRegion2 = BitmapTextureAtlasTextureRegionFactory.createFromAsset(this.mBitmapTextureAtlas, this, "sprite2.png", 0, 0);
this.spriteTextureRegion3 = BitmapTextureAtlasTextureRegionFactory.createFromAsset(this.mBitmapTextureAtlas, this, "sprite3.png", 0, 0);
this.spriteTextureRegion4= BitmapTextureAtlasTextureRegionFactory.createFromAsset(this.mBitmapTextureAtlas, this, "sprite4.png", 0, 0);
// scene.attachChild(sprite1);
this.mBitmapTextureAtlas.load();
}
#Override
public Scene onCreateScene() {
this.mEngine.registerUpdateHandler(new FPSLogger());
scene.setBackground(new Background(0.09804f, 0.6274f, 0.8784f));
/* set sprite1 positions on screen */
final float sprite1_posX = (40);
final float sprite1_posY = (40);
final Sprite sprite1 = new Sprite(sprite1_posX, sprite1_posY, this.spriteTextureRegion1, this.getVertexBufferObjectManager()) {
#Override
public boolean onAreaTouched(final TouchEvent pSceneTouchEvent, final float pTouchAreaLocalX, final float pTouchAreaLocalY) {
this.setPosition(pSceneTouchEvent.getX() - this.getWidth() / 2, pSceneTouchEvent.getY() - this.getHeight() / 2);
return true;
}
};
//sprite1.setScale(3);
scene.attachChild(sprite1);
scene.registerTouchArea(sprite1);
scene.setTouchAreaBindingOnActionDownEnabled(true);
/* set sprite2 positions on screen */
final Sprite sprite2 = new Sprite(sprite1_posX, sprite1_posY + (sprite1.getHeight()*3 + 10), this.spriteTextureRegion2, this.getVertexBufferObjectManager()) {
#Override
public boolean onAreaTouched(final TouchEvent pSceneTouchEvent, final float pTouchAreaLocalX, final float pTouchAreaLocalY) {
this.setPosition(pSceneTouchEvent.getX() - this.getWidth() / 2, pSceneTouchEvent.getY() - this.getHeight() / 2);
return true;
}
};
//sprite2.setScale(3);
scene.attachChild(sprite2);
scene.registerTouchArea(sprite2);
scene.setTouchAreaBindingOnActionDownEnabled(true);
/* set sprite3 positions on screen */
final Sprite sprite3 = new Sprite(sprite1_posX, sprite1_posY + (sprite1.getHeight() + 20), this.spriteTextureRegion3, this.getVertexBufferObjectManager()) {
#Override
public boolean onAreaTouched(final TouchEvent pSceneTouchEvent, final float pTouchAreaLocalX, final float pTouchAreaLocalY) {
this.setPosition(pSceneTouchEvent.getX() - this.getWidth() / 2, pSceneTouchEvent.getY() - this.getHeight() / 2);
return true;
}
};
// sprite3.setScale(3);
scene.attachChild(sprite3);
scene.registerTouchArea(sprite3);
scene.setTouchAreaBindingOnActionDownEnabled(true);
/* set sprite3 positions on screen */
final Sprite sprite4 = new Sprite(sprite1_posX, sprite1_posY + (sprite1.getHeight() + 30), this.spriteTextureRegion4, this.getVertexBufferObjectManager()) {
#Override
public boolean onAreaTouched(final TouchEvent pSceneTouchEvent, final float pTouchAreaLocalX, final float pTouchAreaLocalY) {
this.setPosition(pSceneTouchEvent.getX() - this.getWidth() / 2, pSceneTouchEvent.getY() - this.getHeight() / 2);
return true;
}
};
// sprite4.setScale(3);
scene.attachChild(sprite4);
scene.registerTouchArea(sprite4);
scene.setTouchAreaBindingOnActionDownEnabled(true);
return scene;
}
}
Oh sorry I know what is the problem:
this.spriteTextureRegion1 = BitmapTextureAtlasTextureRegionFactory.createFromAsset(this.mBitmapTextureAtlas, this, "sprite1.png", 0, 0);
this.spriteTextureRegion2 = BitmapTextureAtlasTextureRegionFactory.createFromAsset(this.mBitmapTextureAtlas, this, "sprite2.png", 0, 0);
this.spriteTextureRegion3 = BitmapTextureAtlasTextureRegionFactory.createFromAsset(this.mBitmapTextureAtlas, this, "sprite3.png", 0, 0);
this.spriteTextureRegion4= BitmapTextureAtlasTextureRegionFactory.createFromAsset(this.mBitmapTextureAtlas, this, "sprite4.png", 0, 0);
At the end, where you put 0, 0 - you declare where your region should be located on the Texture atlas. Imagine stickers you put on the sheet of paper. You put one, then on this you put another, and third and fourth. This way you can see only the one that is on top. So you have to put your regions in different places of the texture atlas. If all your images are 40x40 it should look like this (also your atlas might be bigger (512x512):
this.mBitmapTextureAtlas = new BitmapTextureAtlas(this.getTextureManager(), 512, 512, TextureOptions.BILINEAR);
this.spriteTextureRegion1 = BitmapTextureAtlasTextureRegionFactory.createFromAsset(this.mBitmapTextureAtlas, this, "sprite1.png", 0, 0);
this.spriteTextureRegion2 = BitmapTextureAtlasTextureRegionFactory.createFromAsset(this.mBitmapTextureAtlas, this, "sprite2.png", 50, 0);
this.spriteTextureRegion3 = BitmapTextureAtlasTextureRegionFactory.createFromAsset(this.mBitmapTextureAtlas, this, "sprite3.png", 0, 50);
this.spriteTextureRegion4= BitmapTextureAtlasTextureRegionFactory.createFromAsset(this.mBitmapTextureAtlas, this, "sprite4.png", 50, 50);
I am trying to make a HUD at AndEngine, but when I write this code below and run the emulator, only thing appears on Emulator is a black screen with crashed HUD image.
This is what I want to display,
and This is how my code show.
This is my code -
package com.example.andenginetester;
import org.andengine.engine.camera.Camera;
import org.andengine.engine.camera.hud.HUD;
import org.andengine.engine.options.EngineOptions;
import org.andengine.engine.options.ScreenOrientation;
import org.andengine.engine.options.resolutionpolicy.RatioResolutionPolicy;
import org.andengine.entity.scene.Scene;
import org.andengine.entity.scene.background.Background;
import org.andengine.entity.sprite.Sprite;
import org.andengine.opengl.texture.atlas.bitmap.BitmapTextureAtlas;
import org.andengine.opengl.texture.atlas.bitmap.BitmapTextureAtlasTextureRegionFactory;
import org.andengine.opengl.texture.region.TextureRegion;
import org.andengine.ui.activity.SimpleBaseGameActivity;
public class SpriteTester extends SimpleBaseGameActivity {
public static final int CAMERA_WIDTH = 720;
public static final int CAMERA_HEIGHT = 480;
private HUD myHUD;
private Sprite myHUDSprite;
private BitmapTextureAtlas myAtlas;
private TextureRegion myHUDImage;
final Camera camera = new Camera(0, 0, CAMERA_WIDTH, CAMERA_HEIGHT);
#Override
public EngineOptions onCreateEngineOptions() {
return new EngineOptions(true, ScreenOrientation.LANDSCAPE_FIXED, new RatioResolutionPolicy(CAMERA_WIDTH, CAMERA_HEIGHT), camera);
}
#Override
protected void onCreateResources() {
myAtlas = new BitmapTextureAtlas(this.getTextureManager(), 1024, 1024);
myHUDImage = BitmapTextureAtlasTextureRegionFactory.createFromAsset(this.myAtlas, this, "gfx/HUD.png", 0, 0);
mEngine.getTextureManager().loadTexture(myAtlas);
}
#Override
protected Scene onCreateScene() {
final Scene scene = new Scene();
scene.setBackground(new Background(0, 0, 0));
myHUDSprite = new Sprite(0, 0, myHUDImage, this.getVertexBufferObjectManager());
myHUD.attachChild(myHUDSprite);
camera.setHUD(myHUD);
return scene;
}
}
How I should fix it?
Well, I managed to get the correct result , let me know if it works for you:
a) I updated the AndroidManifest.xml
Added in the <activity ... >:
1) android:configChanges="keyboard|keyboardHidden|orientation|screenLayout|uiMode|screenSize|smallestScreenSize|mcc|mnc"
2) android:screenOrientation="landscape"
b) The updated activity:
public class MainActivity extends SimpleBaseGameActivity {
public static final int CAMERA_WIDTH = 720;
public static final int CAMERA_HEIGHT = 480;
private HUD myHUD = new HUD();
private Sprite myHUDSprite;
private BitmapTextureAtlas myAtlas;
private TextureRegion myHUDImage;
final Camera camera = new Camera(0, 0, CAMERA_WIDTH, CAMERA_HEIGHT);
#Override
public EngineOptions onCreateEngineOptions() {
return new EngineOptions(true, ScreenOrientation.LANDSCAPE_FIXED,
new RatioResolutionPolicy(CAMERA_WIDTH, CAMERA_HEIGHT), camera);
}
#Override
protected void onCreateResources() {
myAtlas = new BitmapTextureAtlas(this.getTextureManager(), 1024, 1024);
myHUDImage = BitmapTextureAtlasTextureRegionFactory.createFromAsset(
this.myAtlas, this, "gfx/HUD.png", 0, 0);
mEngine.getTextureManager().loadTexture(myAtlas);
}
#Override
protected Scene onCreateScene() {
final Scene scene = new Scene();
scene.setBackground(new Background(0, 0, 0));
myHUDSprite = new Sprite(0, 0, myHUDImage,
this.getVertexBufferObjectManager());
myHUD.attachChild(myHUDSprite);
myHUD.setPosition(CAMERA_WIDTH/2,CAMERA_HEIGHT/2);
camera.setHUD(myHUD);
return scene;
}
}
I had written a code to move a ball with the help of accelerometer andengine, but i get force close.
My problem is the use of PhysicsWorld.
My library is:
andengine.jar
andenginephysicsbox2dextension.jar
my code is:
public class SnakeGameActivity extends BaseGameActivity implements IAccelerometerListener
{
private static final int CAMERA_WIDTH = 480;
private static final int CAMERA_HEIGHT = 320;
private float mGravityX;
private float mGravityY;
private Sprite splash ;
private final Vector2 mTempVector = new Vector2();
protected PhysicsWorld mPhysicsWorld;
private Camera mCamera;
private Texture mTexture;
private TextureRegion mSplashTextureRegion;
#Override
public Engine onLoadEngine() {
// TODO Auto-generated method stub
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() {
// TODO Auto-generated method stub
this.mTexture = new Texture(512, 512, TextureOptions.BILINEAR_PREMULTIPLYALPHA);
this.enableAccelerometerSensor(this);
this.mSplashTextureRegion = TextureRegionFactory.createFromAsset(this.mTexture, this, "ball_enemy.png", 0, 0);
this.mEngine.registerUpdateHandler(new FPSLogger());
this.mEngine.getTextureManager().loadTexture(this.mTexture);
}
#Override
public Scene onLoadScene() {
this.mEngine.registerUpdateHandler(new FPSLogger());
Scene scene = new Scene(1);
this.mPhysicsWorld = new PhysicsWorld(new Vector2(0, SensorManager.GRAVITY_EARTH), false);
final int centerX = (CAMERA_WIDTH - this.mSplashTextureRegion.getWidth()) / 2;
final int centerY = (CAMERA_HEIGHT - this.mSplashTextureRegion.getHeight()) / 2;
splash = new Sprite(centerX, centerY, this.mSplashTextureRegion);
scene.getLastChild().attachChild(splash);
scene.registerUpdateHandler(this.mPhysicsWorld);
return scene;
}
#Override
public void onLoadComplete() {
// TODO Auto-generated method stub
}
public void onAccelerometerChanged(AccelerometerData pAccelerometerData) {
final Vector2 gravity = Vector2Pool.obtain(pAccelerometerData.getX(), pAccelerometerData.getY());
this.mPhysicsWorld.setGravity(gravity);
Vector2Pool.recycle(gravity);
}
}
my log error:
02-25 21:08:22.334: E/ActivityManager(69): Start proc com.android.deskclock for
broadcast com.android.deskclock/.AlarmInitReceiver: pid=255 uid=10019 gids={}
CPU usage from 16953ms to 19171ms later:
Thank you very much for your help
How do I calculate the position of the mouse relative to the origin of a line chart?
The code below gets the x-position of the mouse cursor relative to the layout origin of the chart. I'd like to know the mouse position relative to the Cartesian origin instead.
public class Chart extends Application {
private NumberAxis xAxis;
private NumberAxis yAxis;
private LineChart<Number,Number> lineChart;
private Label cursorPosition;
private Label xAxisPosition;
#Override
public void start(Stage primaryStage) {
VBox root = new VBox();
xAxis = new NumberAxis("Date", 0.f, 100.f, 10.f);
yAxis = new NumberAxis("Value", 0.f, 100.f, 10.f);
lineChart = new LineChart<>(xAxis, yAxis);
Series series = new Series();
for (int ii = 1; ii <= 100; ii++) {
series.getData().add(new Data(ii, Math.random()*20.));
}
lineChart.getData().add(series);
lineChart.setOnMouseMoved(new EventHandler<MouseEvent>() {
#Override
public void handle(MouseEvent event) {
lineChart.setCursor(Cursor.CROSSHAIR);
cursorPosition.setText(String.valueOf(event.getX()));
}
});
lineChart.setOnMouseExited(new EventHandler<MouseEvent>() {
#Override
public void handle(MouseEvent event) {
lineChart.setCursor(Cursor.DEFAULT);
}
});
cursorPosition = new Label();
root.getChildren().addAll(lineChart, cursorPosition,);
Scene scene = new Scene(root, 300, 250);
primaryStage.setScene(scene);
primaryStage.show();
}
You'll have to use the chart's axes to convert between display coordinates and cartesian (value) coordinates. xAxis.getDisplayPosition(0) would, for instance, give you the x coordinate for the value 0. You can also use this to convert the current mouse position into 'values'.