首先对不起我的英语不好，我是法国人。
我想分享我的问题。几周以来我一直在使用 AndEngine，这是我第一次看到这种情况。
我使用加速度计将我的播放器从左向右移动。问题是他以一种奇怪的物理规律移动。（使用 AndEngine 物理定律）
物理移动和虚拟玩家移动有点晚。还有一种明显的惯性，使得这些动作很难掌握。我只想要经典的加速度计移动系统
这是我的代码
public class Jeu extends SimpleBaseGameActivity implements IAccelerationListener {
// Paramètres
// ==================================
private int CAMERA_WIDTH = 480;
private int CAMERA_HEIGHT = 800;
private Background FOND_BACKGROUND = new Background(255,255,255);
// ==================================
private BitmapTextureAtlas mBitmapTextureAtlas;
private BitmapTextureAtlas mBitmapTextureAtlas2;
private ITextureRegion joueurRegion;
private ITextureRegion plateformeRegion;
private Scene mScene;
private Camera camera;
private PhysicsWorld mPhysicsWorld;
private Personnage joueur;
private Plateforme plateforme[] = new Plateforme[20];
private Sprite joueurSprite;
private Font font;
private Text distance;
private Float distanceM = 0f;
private Entity e;
private HUD hud;
private float OldEtat = 0;
private float CurrentEtat;
@Override
public EngineOptions onCreateEngineOptions() {
// TODO Auto-generated method stub
final CroppedResolutionPolicy canvasSurface = new CroppedResolutionPolicy( CAMERA_WIDTH, CAMERA_HEIGHT );
this.camera = new Camera(0, 0, CAMERA_WIDTH, CAMERA_HEIGHT);
return new EngineOptions(true, ScreenOrientation.PORTRAIT_FIXED, canvasSurface, camera);
}
@Override
protected void onCreateResources() {
// TODO Auto-generated method stub
BitmapTextureAtlasTextureRegionFactory.setAssetBasePath("gfx/");
final BitmapTextureAtlas fontTexture = new BitmapTextureAtlas(this.getTextureManager(), 256, 256, TextureOptions.BILINEAR);
font = new Font(this.getFontManager(), fontTexture, Typeface.create(Typeface.DEFAULT, Typeface.NORMAL), 24, true, Color.BLACK);
mBitmapTextureAtlas = new BitmapTextureAtlas(this.getTextureManager(), 64, 64, TextureOptions.BILINEAR_PREMULTIPLYALPHA);
mBitmapTextureAtlas2 = new BitmapTextureAtlas(this.getTextureManager(), 128, 16, TextureOptions.BILINEAR_PREMULTIPLYALPHA);
joueurRegion = BitmapTextureAtlasTextureRegionFactory.createFromAsset(mBitmapTextureAtlas, getAssets(), "personnage.png", 0, 0);
plateformeRegion = BitmapTextureAtlasTextureRegionFactory.createFromAsset(mBitmapTextureAtlas2, getAssets(), "plateforme.png", 0, 0);
mBitmapTextureAtlas.load();
mBitmapTextureAtlas2.load();
fontTexture.load();
font.load();
enableAccelerationSensor(this);
Log.i("Jump", "RESSOURCE LOADED");
}
@Override
protected Scene onCreateScene() {
// TODO Auto-generated method stub
this.mScene = new Scene();
this.mScene.setBackground(FOND_BACKGROUND);
this.mEngine.registerUpdateHandler(new FPSLogger());
this.mPhysicsWorld = new PhysicsWorld(new Vector2(0, SensorManager.GRAVITY_EARTH), false);
this.e = new Entity();
this.e.setPosition(CAMERA_WIDTH/2, 0);
this.camera.setChaseEntity(e);
for (int i=0;i<5;i++)
{
plateforme[i] = new Plateforme(200, 500-i*120, plateformeRegion, this.getVertexBufferObjectManager(), 1.0f, "BASE");
this.mScene.attachChild(plateforme[i]);
}
joueurSprite = new Sprite(200, -20, joueurRegion, this.getVertexBufferObjectManager());
joueur = new Personnage(this.mPhysicsWorld, joueurSprite, "DESCENTE", 1.0f, 1.0f, 0f); // three last numbers are the PhysicsFactory.createFixtureDef(1.0f, 1.0f, 0f)
distance = new Text(30, 10, font, distanceM+"m", 30, this.getVertexBufferObjectManager()); // there is also a setLinearDamping(1.2f);
this.mScene.attachChild(joueur.getSprite());
this.hud = new HUD();
this.hud.attachChild(distance);
this.camera.setHUD(hud);
this.mEngine.registerUpdateHandler(new IUpdateHandler() {
@Override
public void onUpdate(float pSecondsElapsed) {
// TODO Auto-generated method stub
distanceM = -joueur.getSprite().getY()/100;
if (distanceM <0)
distanceM = 0f;
e.setY(joueur.getSprite().getY());
CurrentEtat = joueur.getSprite().getY();
if (OldEtat == 0)
OldEtat = joueur.getSprite().getY();
else
CurrentEtat = joueur.getSprite().getY();
Log.i("Jump Old", String.valueOf(OldEtat));
Log.i("Jump Curr", String.valueOf(CurrentEtat));
if (OldEtat < CurrentEtat)
joueur.setEtat("DESCENTE");
else if (OldEtat > CurrentEtat)
joueur.setEtat("MONTEE");
if (OldEtat != CurrentEtat)
OldEtat = CurrentEtat;
//Log.i("Jump", String.valueOf(e.getY()));
}
@Override
public void reset() {
// TODO Auto-generated method stub
}
});
this.mEngine.registerUpdateHandler(new IUpdateHandler() {
@Override
public void onUpdate(float pSecondsElapsed) {
// TODO Auto-generated method stub
for (int i=0;i<5;i++)
if (joueur.collidWith(plateforme[i]) && joueur.getEtat() == "DESCENTE")
{
joueur.Jump(plateforme[i]);
Log.i("Jump", "COLLISION");
}
}
@Override
public void reset() {
// TODO Auto-generated method stub
}
});
mPhysicsWorld.registerPhysicsConnector(new PhysicsConnector(joueur.getSprite(), joueur.getBody(), true, false));
this.mScene.registerUpdateHandler(this.mPhysicsWorld);
return mScene;
}
@Override
public void onAccelerationAccuracyChanged(AccelerationData pAccelerationData) {
// TODO Auto-generated method stub
}
@Override
public void onAccelerationChanged(AccelerationData pAccelerationData) {
// TODO Auto-generated method stub
final Vector2 gravity = Vector2Pool.obtain(pAccelerationData.getX()*8, SensorManager.GRAVITY_EARTH);
this.mPhysicsWorld.setGravity(gravity);
Vector2Pool.recycle(gravity);
//Log.i("Jump", String.valueOf(pAccelerationData.getX()));
//Log.i("Jump", "["+String.valueOf(joueur.getBody().getPosition().x*PhysicsConstants.PIXEL_TO_METER_RATIO_DEFAULT)+":"+String.valueOf(joueur.getBody().getPosition().y*PhysicsConstants.PIXEL_TO_METER_RATIO_DEFAULT)+"]");
//Log.i("Jump", "["+String.valueOf(plateforme.getX())+":"+String.valueOf(plateforme.getY())+"]");
String s = String.format("%.3f", distanceM);
distance.setText(s+"m");
}
}