Ejemplo n.º 1
0
ArActionDesired *Acquire::fire(ArActionDesired currentDesired)
{
  myDesired.reset();
  myDesired.setVel(0);
  switch (myState) {
  case STATE_START_LOOKING:
    myFirstTurn.clear();
    mySecondTurn.clear();
    myState = STATE_LOOKING;
    myGripper->liftUp();
    myGripper->gripClose();
    printf("Acquire: Raising lift\n");
    myStartUp.setToNow();
    myTryingGripper = true;
  case STATE_LOOKING:
    if (myTryingGripper && (myStartUp.mSecSince() < 600 ||
			    ((!myGripper->isLiftMaxed() ||
			      myGripper->getGripState() != 2) && 
			     myStartUp.mSecSince() < 5000)))
    {
      myGripper->liftUp();
      myGripper->gripClose();
      myDesired.setVel(0);
      myDesired.setDeltaHeading(0);
      return &myDesired;
    } 
    else if (myTryingGripper)
    {
      printf("Acquire: Done raising lift %ld after started.\n", 
	     myStartUp.mSecSince());
      myTryingGripper = false;
    }
    if (myActs->getNumBlobs(myChannel) > 0)
    {
      myDesired.setDeltaHeading(0);
      myState = STATE_SUCCEEDED;
      printf("Acquire: Succeeded!\n");
    }
    else if (myFirstTurn.didAll() && mySecondTurn.didAll())
    {
      myDesired.setDeltaHeading(0);
      myState = STATE_FAILED;
      printf("Acquire: Did two revolutions, didn't see the blob, Failed!\n");
    } 
    else
    {
      myFirstTurn.update(myRobot->getTh());
      if (myFirstTurn.didAll())
	mySecondTurn.update(myRobot->getTh());
      myDesired.setDeltaHeading(8);
    }
    return &myDesired;
  default:
    myDesired.setVel(0);
    myDesired.setDeltaHeading(0);
    return &myDesired;
  }
}
Ejemplo n.º 2
0
ArActionDesired *DropOff::fire(ArActionDesired currentDesired)
{
  ArPose pose;
  ArACTSBlob blob;
  bool blobSeen = false;
  double xRel, yRel;
  double dist;


  myDesired.reset();
  if (myState == STATE_SUCCEEDED)
  {
    printf("DropOff: Succeeded\n");
    myDesired.setVel(0);
    myDesired.setDeltaHeading(0);
    return &myDesired;
  }
  else if (myState == STATE_FAILED)
  {
    printf("DropOff: Failed\n");
    myDesired.setVel(0);
    myDesired.setDeltaHeading(0);
    return &myDesired;
  }

  if (myActs->getNumBlobs(myChannel) > 0 &&
      (blobSeen = myActs->getBlob(myChannel, 1, &blob)))
  {
    myLastSeen.setToNow();
  }

  // this if the stuff we want to do if we're not going to just drive forward
  // and home in on the color, ie the pickup-specific stuff
  if (myState == STATE_START_LOOKING)
  {
    mySentGripper.setToNow();
    myPointedDown = false;
    myState = STATE_LOOKING;
    myLastSeen.setToNow();
    myTried = false;
    myLastMoved.setToNow();
    myLastPose = myRobot->getPose();
    //myWaitingOnGripper = true;
    myWaitingOnLower = false;
    myLowered = false;
    myWaitingOnRaised = false;
    myStartRaised = false;
    printf("@@@@@ DropOff: Starting\n");
  }

  // we want to sit still until the lift is down or for a second and a half
  /*
  if (myWaitingOnGripper) 
  {
    if (mySentGripper.mSecSince() < 500 || 
	(myGripper->getGripState() != 1
	 && mySentGripper.mSecSince() < 4000))
    {
      myDesired.setVel(0);
      myDesired.setDeltaHeading(0);
      myLastMoved.setToNow();
      myLastPose = myRobot->getPose();
      return &myDesired;
    }
    else
    {
      myWaitingOnGripper = false;
    }
    myLastMoved.setToNow();
    myLastPose = myRobot->getPose();
  } 
  */
  //printf("sensors %d %d stall %d %d\n",!(myRobot->getDigIn() & ArUtil::BIT2),
  //!(myRobot->getDigIn() & ArUtil::BIT3),
  //myRobot->isLeftMotorStalled(), myRobot->isRightMotorStalled());
  if ((myRobot->isLeftBreakBeamTriggered() &&
       myRobot->isRightBreakBeamTriggered()) ||
       myRobot->isLeftMotorStalled() || myRobot->isRightMotorStalled())
  {
    if (!myWaitingOnLower && !myLowered && !myWaitingOnRaised)
    {
      myWaitingOnLower = true;
      printf("DropOff: Lowering gripper\n");
      mySentGripper.setToNow();
    }
  }
  if (myWaitingOnLower)
  {
    /// TODO
    if (mySentGripper.mSecSince() < 600 || 
	(!myGripper->isLiftMaxed() && mySentGripper.mSecSince() < 20000))
    {
      myGripper->liftDown();
      myDesired.setVel(0);
      myDesired.setDeltaHeading(0);
      myLastMoved.setToNow();
      myLastPose = myRobot->getPose();
      return &myDesired;
    }
    else
    {
      printf("DropOff: Lowered!\n");
      myWaitingOnLower = false;
      myWaitingOnRaised = true;
      myStartRaised = true;
    }
    myLastMoved.setToNow();
    myLastPose = myRobot->getPose();
  }

  if (myWaitingOnRaised)
  {
    if (myStartRaised)
    {
      printf("DropOff: Raising gripper a little bit\n");
      myGripper->liftCarry(15);
      mySentGripper.setToNow();
      myStartRaised = false;
    }
    if (mySentGripper.mSecSince() > 1000)
    {
      printf("DropOff: Raised the gripper a little bit\n");
      myWaitingOnRaised = false;
      myLowered = true;
    }
    myDesired.setVel(0);
    myDesired.setDeltaHeading(0);
    myLastMoved.setToNow();
    myLastPose = myRobot->getPose();
    return &myDesired;
  }

  if (myLowered)
  {
    if (!myTried)
    {
      printf("DropOff: Trying to let go of the block.\n");
      myTriedStart.setToNow();
      myTried = true;
    }
    myGripper->gripOpen();
    if (myGripper->getGripState() == 1 || myTriedStart.mSecSince() > 3000)
    {
      printf("DropOff: Succeeded, dropped off the block.\n");
      myGripper->liftUp();
      myState = STATE_SUCCEEDED;
    }
    myDesired.setVel(0);
    myDesired.setDeltaHeading(0);
    return &myDesired;
  }

  pose = myRobot->getPose();
  dist = myLastPose.findDistanceTo(pose);
  if (dist < 5 && myLastMoved.mSecSince() > 2500)
  {
    printf("DropOff: Failed, no movement in the last 2500 msec.\n");
    myState = STATE_FAILED;
    myGripper->gripOpen();
    myGripper->liftUp();
    myDesired.setVel(0);
    myDesired.setDeltaHeading(0);
    return &myDesired;
  }
  else if (dist > 5)
  {
    myLastMoved.setToNow();
    myLastPose = myRobot->getPose();
  }

  if (!blobSeen)
  {
    if (((!myPointedDown && myLastSeen.mSecSince() > 1500) ||
	 (myPointedDown && myLastSeen.mSecSince() > 4000)) &&
	myGripper->getBreakBeamState() == 0)
    {
      printf("DropOff:  Lost the blob, failed, last saw it %ld msec ago.\n",
	     myLastSeen.mSecSince());
      myState = STATE_FAILED;
      myGripper->gripOpen();
      ArUtil::sleep(3);
      myGripper->liftUp();
      myDesired.setVel(0);
      myDesired.setDeltaHeading(0);
      return &myDesired;
    }
  } 
  else
    myLastSeen.setToNow();

  if (blobSeen)
  {
    xRel = (double)(blob.getXCG() - WIDTH/2.0) / (double)WIDTH + CAMERA_X_CORRECTION;
    yRel = -(double)(blob.getYCG() - HEIGHT/2.0) / (double)HEIGHT;
    //printf("xRel %.3f yRel %.3f:  ", xRel, yRel);
  } 
  else
  {
    //printf("No blob: ");
  }

  if (blobSeen && yRel < -.2  && !myPointedDown)
  {
    printf("DropOff: Pointing the camera down!!!\n");
    myAMPTU->panTilt(0, -75);
    myPointedDown = true;
  }
  
  
  if (!blobSeen || ArMath::fabs(xRel) < .001)
  {
    //printf("Going straight ahead\n");
    myDesired.setDeltaHeading(0);
  }
  else
  {
    //printf("Turning %.2f\n", -xRel * 30);
    if (-xRel > 1.0)
      myDesired.setDeltaHeading(30);
    else if (-xRel < -1.0)
      myDesired.setDeltaHeading(-30);
    else
      myDesired.setDeltaHeading(-xRel * 30);
  }
  if (myRobot->isLeftTableSensingIRTriggered() ||
      myRobot->isRightTableSensingIRTriggered())
    myDesired.setVel(50);
  else
    myDesired.setVel(100);
  return &myDesired;
}
Ejemplo n.º 3
0
void TakeBlockToWall::handler(void)
{
  Color tempColor;

  switch (myState) 
  {
  case STATE_START:
    setState(STATE_ACQUIRE_BLOCK);
    myDropWall = COLOR_FIRST_WALL;
    myLapWall = COLOR_SECOND_WALL;
    printf("!! Started state handling!\n");
    //handler();
    return;
    break;
  case STATE_ACQUIRE_BLOCK:
    if (myNewState)
    {
      printf("!! Acquire block\n");
      myNewState = false;
      mySony->panTilt(0, -10);
      myAcquire->activate();
      myAcquire->setChannel(COLOR_BLOCK);
      myPickUp->deactivate();
      myDriveTo->deactivate();
      myBackup->deactivate();
    }
    if (myGripper->getGripState() == 2 &&
	myGripper->getBreakBeamState() != 0)
    {
      printf("###### AcquireBlock: Successful (have cube?)\n");
      setState(STATE_ACQUIRE_DROP_WALL);
      //handler();
      return;
    } 
    else if (myGripper->getBreakBeamState() != 0)
    {
      printf("###### AcquireBlock: Successful (cube in gripper?)\n");
      setState(STATE_PICKUP_BLOCK);
      //handler();
      return;
    }
    if (myAcquire->getState() == Acquire::STATE_FAILED || 
	myStateStart.mSecSince() > 35000)
    {
      printf("###### AcqiureBlock: failed\n");
      setState(STATE_BACKUP);
      //handler();
      return;
    }
    else if (myAcquire->getState() == Acquire::STATE_SUCCEEDED)
    {
      printf("###### AcquireBlock: successful\n");
      setState(STATE_PICKUP_BLOCK);
      //handler();
      return;
    }
    break;
  case STATE_PICKUP_BLOCK:
    if (myNewState)
    {
      printf("!! Pickup block\n");
      myNewState = false;
      mySony->panTilt(0, -15);
      myAcquire->deactivate();
      myPickUp->activate();
      myPickUp->setChannel(COLOR_BLOCK);
      myDriveTo->deactivate();
      myBackup->deactivate();
    }
    if (myPickUp->getState() == PickUp::STATE_FAILED)
    {
      printf("###### PickUpBlock: failed\n");
      setState(STATE_BACKUP);
      //handler();
      return;
    }
    else if (myPickUp->getState() == PickUp::STATE_SUCCEEDED)
    {
      printf("###### PickUpBlock: successful\n");
      setState(STATE_ACQUIRE_DROP_WALL);
      //handler();
      return;
    }
    break;
  case STATE_BACKUP:
    if (myNewState)
    {
      printf("!! Backup\n");
      myAcquire->deactivate();
      myPickUp->deactivate();
      myDriveTo->deactivate();
      myBackup->activate();
      myNewState = false;
    }
    if (myStateStart.mSecSince() > 2000)
    {
      printf("###### Backup: done\n");
      setState(STATE_ACQUIRE_BLOCK2);
      //handler();
      return;
    }
    break;
  case STATE_ACQUIRE_BLOCK2:
    if (myNewState)
    {
      printf("!! Acquire block 2\n");
      myNewState = false;
      mySony->panTilt(0, -25);
      myAcquire->activate();
      myAcquire->setChannel(COLOR_BLOCK);
      myPickUp->deactivate();
      myDriveTo->deactivate();
      myBackup->deactivate();
    }
    if (myGripper->getGripState() == 2 &&
	myGripper->getBreakBeamState() != 0)
    {
      printf("###### AcquireBlock2: Successful (have cube?)\n");
      setState(STATE_ACQUIRE_DROP_WALL);
      //handler();
      return;
    }
    else if (myGripper->getBreakBeamState() != 0)
    {
      printf("###### AcquireBlock2: Successful (cube in gripper?)\n");
      setState(STATE_PICKUP_BLOCK2);
      //handler();
      return;
    }
    if (myAcquire->getState() == Acquire::STATE_FAILED ||
	myStateStart.mSecSince() > 35000)
    {
      printf("###### AcqiureBlock2: failed\n");
      setState(STATE_FAILED);
      //handler();
      return;
    }
    else if (myAcquire->getState() == Acquire::STATE_SUCCEEDED)
    {
      printf("###### AcquireBlock2: successful\n");
      setState(STATE_PICKUP_BLOCK2);
      //handler();
      return;
    }
    break;
  case STATE_PICKUP_BLOCK2:
    if (myNewState)
    {
      printf("!! Pickup block 2\n");
      myNewState = false;
      myAcquire->deactivate();
      myPickUp->activate();
      mySony->panTilt(0, -25);
      myPickUp->setChannel(COLOR_BLOCK);
      myDriveTo->deactivate();
      myBackup->deactivate();
    }
    if (myPickUp->getState() == PickUp::STATE_FAILED)
    {
      printf("###### PickUpBlock2: failed\n");
      setState(STATE_FAILED);
      //handler();
      return;
    }
    else if (myPickUp->getState() == PickUp::STATE_SUCCEEDED)
    {
      printf("###### PickUpBlock2: successful\n");
      setState(STATE_ACQUIRE_DROP_WALL);
      //handler();
      return;
    }
    break;
  case STATE_ACQUIRE_DROP_WALL:
    if (myNewState)
    {
      printf("!! Acquire Drop wall, channel %d\n", myDropWall);
      myNewState = false;
      mySony->panTilt(0, -5);
      myAcquire->activate();
      myAcquire->setChannel(myDropWall);
      myPickUp->deactivate();
      myDriveTo->deactivate();
      myBackup->deactivate();
    }
    if (myGripper->getGripState() != 2 || 
	myGripper->getBreakBeamState() == 0)
    {
      printf("###### AcquireDropWall:: failed (lost cube)\n");
      setState(STATE_BACKUP);	       
      //handler();
      return;
    }
    if (myAcquire->getState() == Acquire::STATE_FAILED ||
	myStateStart.mSecSince() > 35000)
    {
      printf("###### AcquireDropWall:: failed\n");
      setState(STATE_FAILED);
      //handler();
      return;
    }
    else if (myAcquire->getState() == Acquire::STATE_SUCCEEDED)
    {
      printf("###### AcquireDropWall: successful\n");
      setState(STATE_DRIVETO_DROP_WALL);
      //handler();
      return;
    }
    break;
  case STATE_DRIVETO_DROP_WALL:
    if (myNewState)
    {
      printf("!! Driveto Drop wall, channel %d\n", myDropWall);
      myNewState = false;
      myAcquire->deactivate();
      myPickUp->deactivate();
      myDriveTo->activate();
      myDriveTo->setChannel(myDropWall);
      myBackup->deactivate();
    }
    if (myGripper->getGripState() != 2 || 
	myGripper->getBreakBeamState() == 0)
    {
      printf("###### DriveToDropWall:: failed (lost cube)\n");
      setState(STATE_BACKUP);
      //handler();
      return;
    }
    if (myDriveTo->getState() == DriveTo::STATE_FAILED)
    {
      printf("###### DriveToDropWall: failed\n");
      setState(STATE_FAILED);
      //handler();
      return;
    }
    else if (myDriveTo->getState() == DriveTo::STATE_SUCCEEDED)
    {
      printf("###### DriveToDropWall: succesful\n");
      setState(STATE_DROP);
      //handler();
      return;
    }
    break;
  case STATE_DROP:
    if (myNewState)
    {
      printf("!! Drop\n");
      printf("@@@@@ Drop lowering lift\n");
      myGripper->liftDown(); 
      myNewState = false;
      myAcquire->deactivate();
      myPickUp->deactivate();
      myDriveTo->deactivate();
      myBackup->deactivate();
      myGripOpenSent = false;
    }
    
    myGripper->liftDown();
    if ((myStateStart.mSecSince() > 500 && 
	 myGripper->isLiftMaxed() && myStateStart.mSecSince() < 5000) ||
	myStateStart.mSecSince() > 5000)
    {
      myGripper->gripOpen();
      /*if (!myGripOpenSent)
      {
	ArUtil::sleep(3);
	myGripper->gripOpen();
      }
      myGripOpenSent = true;
      */
    }
    if (myGripper->getGripState() == 1 || myStateStart.mSecSince() > 6000)
    {
      printf("###### Drop: success\n");
      setState(STATE_DROP_BACKUP);
      //handler();
      return;
    }
    break;
  case STATE_DROP_BACKUP:
    if (myNewState)
    {
      printf("!! Drop backup\n");
      myAcquire->deactivate();
      myPickUp->deactivate();
      myDriveTo->deactivate();
      myBackup->activate();
      myNewState = false;
    }
    if (myStateStart.mSecSince() > 2000)
    {
      printf("###### Drop_Backup: done\n");
      setState(STATE_ACQUIRE_LAP_WALL);
      //handler();
      return;
    }
    break;
  case STATE_ACQUIRE_LAP_WALL:
    if (myNewState)
    {
      printf("!! Acquire Lap wall, channel %d\n", myLapWall);
      myNewState = false;
      mySony->panTilt(0, -5);
      myAcquire->activate();
      myAcquire->setChannel(myLapWall);
      myPickUp->deactivate();
      myDriveTo->deactivate();
      myBackup->deactivate();
    }
    if (myAcquire->getState() == Acquire::STATE_FAILED ||
	myStateStart.mSecSince() > 35000)
    {
      printf("###### AcquireLapWall:: failed\n");
      setState(STATE_SWITCH);
      //handler();
      return;
    }
    else if (myAcquire->getState() == Acquire::STATE_SUCCEEDED)
    {
      printf("###### AcquireLapWall: successful\n");
      setState(STATE_DRIVETO_LAP_WALL);
      //handler();
      return;
    }
    break;
  case STATE_DRIVETO_LAP_WALL:
    if (myNewState)
    {
      printf("!! Driveto Lap wall, channel %d\n", myLapWall);
      myNewState = false;
      myAcquire->deactivate();
      myPickUp->deactivate();
      myDriveTo->activate();
      myDriveTo->setChannel(myLapWall);
      myBackup->deactivate();
    }
    if (myDriveTo->getState() == DriveTo::STATE_FAILED)
    {
      printf("###### DriveToLapWall: failed\n");
      setState(STATE_SWITCH);
      //handler();
      return;
    }
    else if (myDriveTo->getState() == DriveTo::STATE_SUCCEEDED)
    {
      printf("###### DriveToLapWall: succesful\n");
      setState(STATE_SWITCH);
      //handler();
      return;
    }
    break;
  case STATE_SWITCH:
    printf("!! Switching walls around.\n");
    tempColor = myDropWall;
    myDropWall = myLapWall;
    myLapWall = tempColor;
    setState(STATE_ACQUIRE_BLOCK);
    //handler();
    return;
  case STATE_FAILED:
    printf("@@@@@ Failed to complete the task!\n");
    myRobot->comInt(ArCommands::SONAR, 0);
    ArUtil::sleep(50);
    myRobot->comStr(ArCommands::SAY, "\52\77\37\62\42\70");
    ArUtil::sleep(500);
    Aria::shutdown();
    myRobot->disconnect();
    myRobot->stopRunning();
    return;
  }

}
Ejemplo n.º 4
0
ArActionDesired *PickUp::fire(ArActionDesired currentDesired)
{
  ArPose pose;
  ArACTSBlob blob;
  bool blobSeen = false;
  double xRel, yRel;
  double dist;

  myDesired.reset();
  if (myState == STATE_SUCCEEDED)
  {
    //printf("PickUp: Succeeded\n");
    myDesired.setVel(0);
    myDesired.setDeltaHeading(0);
    return &myDesired;
  }
  else if (myState == STATE_FAILED)
  {
    //printf("PickUp: Failed\n");
    myDesired.setVel(0);
    myDesired.setDeltaHeading(0);
    return &myDesired;
  }

  // this if the stuff we want to do if we're not going to just drive forward
  // and home in on the color, ie the pickup-specific stuff
  if (myState == STATE_START_LOOKING)
  {
    myGripper->gripOpen();
    ArUtil::sleep(3);
    myGripper->liftDown();
    mySentLiftDown.setToNow();
    myPointedDown = false;
    myState = STATE_LOOKING;
    myLastSeen.setToNow();
    myTried = false;
    myLastMoved.setToNow();
    myLastPose = myRobot->getPose();
    myWaitingOnGripper = true;
    printf("@@@@@ Pickup: Lowering lift\n");
  }

  // we want to sit still until the lift is down or for a second and a half
  if (myWaitingOnGripper) 
  {
    if (mySentLiftDown.mSecSince() < 500 || 
	((!myGripper->isLiftMaxed() || myGripper->getGripState() != 2)
	 && mySentLiftDown.mSecSince() < 5000))
    {
      myGripper->liftDown();
      myGripper->gripOpen();
      myDesired.setVel(0);
      myDesired.setDeltaHeading(0);
      myLastMoved.setToNow();
      myLastPose = myRobot->getPose();
      return &myDesired;
    }
    else
    {
      myWaitingOnGripper = false;
    }
    myLastMoved.setToNow();
    myLastPose = myRobot->getPose();
  } 

  if (myGripper->getBreakBeamState() != 0)
  {
    if (myGripper->getGripState() == 2)
    {
      printf("PickUp: Succeeded, have block.\n");
      myGripper->liftUp();
      myState = STATE_SUCCEEDED;
    }
    else if (!myTried)
    {
      myGripper->gripClose();
      printf("PickUp: Trying to pick up.\n");
      myTried = true;
      myTriedStart.setToNow();
    }
    myDesired.setVel(0);
    myDesired.setDeltaHeading(0);
    return &myDesired;
  }
  // this means that the grippers are closed, but we don't have anything in 
  // them, ie that we failed to get the block
  else if (myTried && (myGripper->getGripState() == 2 || 
		       myTriedStart.mSecSince() > 5000))
  {
    myState = STATE_FAILED;
    myGripper->gripOpen();
    ArUtil::sleep(3);
    myGripper->liftUp();
    printf("PickUp: Grippers closed, didn't get a block, failed.\n");
    myDesired.setVel(0);
    myDesired.setDeltaHeading(0);
    return &myDesired;
  }
     
  pose = myRobot->getPose();
  dist = myLastPose.findDistanceTo(pose);
  if (dist < 5 && myLastMoved.mSecSince() > 1500)
  {
    printf("PickUp: Failed, no movement in the last 1500 msec.\n");
    myState = STATE_FAILED;
    myGripper->gripOpen();
    myGripper->liftUp();
    myDesired.setVel(0);
    myDesired.setDeltaHeading(0);
    return &myDesired;
  }
  else if (dist > 5)
  {
    myLastMoved.setToNow();
    myLastPose = myRobot->getPose();
  }

  if (myActs->getNumBlobs(myChannel) == 0 || 
      !(blobSeen = myActs->getBlob(myChannel, 1, &blob)))
  {
    if (((!myPointedDown && myLastSeen.mSecSince() > 1500) ||
	 (myPointedDown && myLastSeen.mSecSince() > 4000)) &&
	myGripper->getBreakBeamState() == 0)
    {
      printf("PickUp:  Lost the blob, failed, last saw it %ld msec ago.\n",
	     myLastSeen.mSecSince());
      myState = STATE_FAILED;
      myGripper->gripOpen();
      ArUtil::sleep(3);
      myGripper->liftUp();
      myDesired.setVel(0);
      myDesired.setDeltaHeading(0);
      return &myDesired;
    }
  } 
  else
    myLastSeen.setToNow();
  

  if (blobSeen)
  {
    xRel = (double)(blob.getXCG() - WIDTH/2.0) / (double)WIDTH;
    yRel = (double)(blob.getYCG() - HEIGHT/2.0) / (double)HEIGHT;
    //printf("xRel %.3f yRel %.3f:\n", xRel, yRel);
  } 
  else
  {
    //printf("No blob: ");
  }

  if (blobSeen && yRel < 0.2 && !myPointedDown)
  {
    printf("PickUp: Pointing the camera down!!!\n");
    mySony->panTilt(0, -ArSonyPTZ::MAX_TILT);
    myPointedDown = true;
  }
  
  
  if (!blobSeen || ArMath::fabs(xRel) < .10)
  {
    //printf("Going straight ahead\n");
    myDesired.setDeltaHeading(0);
  }
  else
  {
    //printf("Turning %.2f\n", -xRel * 10);
    if (ArMath::fabs(-xRel * 10) <= 10)
      myDesired.setDeltaHeading(-xRel * 10);
    else if (-xRel > 0)
      myDesired.setDeltaHeading(10);
    else
      myDesired.setDeltaHeading(-10);
  }
  myDesired.setVel(150);
  return &myDesired;
}