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ArActionRobotJoydrive.cpp
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ArActionRobotJoydrive.cpp
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/*
Adept MobileRobots Robotics Interface for Applications (ARIA)
Copyright (C) 2004-2005 ActivMedia Robotics LLC
Copyright (C) 2006-2010 MobileRobots Inc.
Copyright (C) 2011-2015 Adept Technology, Inc.
Copyright (C) 2016-2018 Omron Adept Technologies, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
If you wish to redistribute ARIA under different terms, contact
Adept MobileRobots for information about a commercial version of ARIA at
Adept MobileRobots, 10 Columbia Drive, Amherst, NH 03031; +1-603-881-7960
*/
#include "ArExport.h"
#include "ariaOSDef.h"
#include "ArActionRobotJoydrive.h"
#include "ArRobot.h"
#include "ariaInternal.h"
#include "ArCommands.h"
/**
* @param name Name for this action
@param requireDeadmanPushed if true the button must be pushed to drive,
if false we'll follow the joystick input no matter what
**/
AREXPORT ArActionRobotJoydrive::ArActionRobotJoydrive(
const char *name, bool requireDeadmanPushed) :
ArAction(name, "This action reads the joystick on the robot and sets the translational and rotational velocities based on this."),
myHandleJoystickPacketCB(this, &ArActionRobotJoydrive::handleJoystickPacket),
myConnectCB(this, &ArActionRobotJoydrive::connectCallback)
{
myRequireDeadmanPushed = requireDeadmanPushed;
setNextArgument(ArArg("whether to require the deadman to be pushed or not", &myRequireDeadmanPushed, "If this is true then deadman will need to be pushed to drive, if false we'll drive based on the joystick all the time"));
myDeadZoneLast = false;
myHandleJoystickPacketCB.setName("ArActionRobotJoydrive");
}
AREXPORT ArActionRobotJoydrive::~ArActionRobotJoydrive()
{
}
AREXPORT void ArActionRobotJoydrive::setRobot(ArRobot *robot)
{
ArAction::setRobot(robot);
if (myRobot != NULL)
{
myRobot->addConnectCB(&myConnectCB);
myRobot->addPacketHandler(&myHandleJoystickPacketCB);
if (robot->isConnected())
connectCallback();
}
}
AREXPORT void ArActionRobotJoydrive::connectCallback(void)
{
myRobot->comInt(ArCommands::JOYINFO, 2);
}
AREXPORT bool ArActionRobotJoydrive::handleJoystickPacket(
ArRobotPacket *packet)
{
if (packet->getID() != 0xF8)
return false;
myPacketReceivedTime.setToNow();
myButton1 = packet->bufToUByte();
myButton2 = packet->bufToUByte();
myJoyX = packet->bufToUByte2();
myJoyY = packet->bufToUByte2();
myThrottle = packet->bufToUByte2();
//printf("%d %d %d %d %d\n", myButton1, myButton2, myJoyX, myJoyY, myThrottle);
return true;
}
AREXPORT ArActionDesired *ArActionRobotJoydrive::fire(ArActionDesired currentDesired)
{
bool printing = false;
myDesired.reset();
// if we need the deadman to activate and it isn't pushed just bail
if (myRequireDeadmanPushed && !myButton1)
{
if (printing)
printf("ArActionRobotJoydrive: Nothing\n");
myDeadZoneLast = false;
return NULL;
}
// these should vary between 1 and -1
double ratioRot = -(myJoyX - 512) / 512.0;
double ratioTrans = (myJoyY - 512) / 512.0;
double ratioThrottle = myThrottle / 1024.0;
bool doTrans = ArMath::fabs(ratioTrans) > .33;
bool doRot = ArMath::fabs(ratioRot) > .33;
if (0)
printf("%.0f %.0f (x %.3f y %.3f throttle %.3f)\n", ratioTrans * ratioThrottle * 1000,
ratioRot * ratioThrottle * 50, ratioTrans, ratioRot, ratioThrottle);
if (!doTrans && !doRot)
{
// if the joystick is in the center, we don't need the deadman,
// and we were stopped lasttime, then just let other stuff go
if (myDeadZoneLast && !myRequireDeadmanPushed)
{
if (printing)
printf("ArActionRobotJoydrive: deadzone Nothing\n");
return NULL;
}
// if the deadman doesn't need to be pushed let something else happen here
if (printing)
printf("ArActionRobotJoydrive: deadzone\n");
myDesired.setVel(0);
myDesired.setDeltaHeading(0);
myDeadZoneLast = true;
return &myDesired;
}
myDeadZoneLast = false;
// if they have the stick the opposite direction of the velocity
// then let people crank up the deceleration
if (doTrans && ((myRobot->getVel() > 0 && ratioTrans < -0.5) ||
(myRobot->getVel() < 0 && ratioTrans > 0.5)))
{
if (printing)
printf("ArActionRobotJoydrive: Decelerating trans more\n");
myDesired.setTransDecel(myRobot->getTransDecel() * 3);
}
// if they have the stick the opposite direction of the velocity
// then let people crank up the deceleration
if (doRot && ((myRobot->getRotVel() > 0 && ratioRot < -0.5) ||
(myRobot->getRotVel() < 0 && ratioRot > 0.5)))
{
if (printing)
printf("ArActionRobotJoydrive: Decelerating rot more\n");
myDesired.setRotDecel(myRobot->getRotDecel() * 3);
}
if (doTrans)
myDesired.setVel(ratioTrans * ratioThrottle * myRobot->getTransVelMax());
else
myDesired.setVel(0);
printf("%.0f %.0f\n", ratioTrans * ratioThrottle * myRobot->getTransVelMax(),
ratioRot * ratioThrottle * myRobot->getRotVelMax());
if (doRot)
myDesired.setRotVel(ratioRot * ratioThrottle * myRobot->getRotVelMax());
else
myDesired.setRotVel(0);
if(printing)
printf("ArActionRobotJoydrive: (%ld ms ago) we got %d %d %.2f %.2f %.2f (speed %.0f %.0f)\n",
myPacketReceivedTime.mSecSince(),
myButton1, myButton2, ratioTrans, ratioRot, ratioThrottle,
myRobot->getVel(), myRobot->getRotVel());
return &myDesired;
}