next »

[BrazilianBoy]

Does anyone know how to rotate the view around a point in space  (The point is my player's position, I want to achieve an "orbit" behavior).

Lucas.

[Marvin Fröhlich]

This code should do the trick:

Code:

final View view = env.getView();
final AngleInterpolater angleInter = new AngleInterpolater( 1.0f );
angleInter.startIncreasing( getGameMicroTime() );
this.getUpdater().addUpdatable( new Updatable()
{
    final Point3f viewPos = new Point3f( view.getPosition() );
    final float dist = view.getPosition().distance( Point3f.ZERO );
   
    public void update( long gameTime, long frameTime, TimingMode timingMode )
    {
        final long gameMicros = timingMode.getMicroSeconds( gameTime );
       
        final float angle = angleInter.getValue( gameMicros );
       
        viewPos.setX( FastMath.sin( angle ) * dist );
        viewPos.setZ( FastMath.cos( angle ) * dist );
       
        view.lookAt( viewPos, Point3f.ZERO, Vector3f.POSITIVE_Y_AXIS );
    }
} );

Marvin