// track mouse wheel movements
final double actualAcceleration = 50 * avatar.avatarAcceleration * (1 + (avatar.getMovementSpeed() / 10));
- avatar.getMovementDirection().y += (wheelMovedDirection * actualAcceleration);
+ avatar.getMovementVector().y += (wheelMovedDirection * actualAcceleration);
avatar.enforceSpeedLimit();
// check if view shall be repainted