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scoutos / scout / libscout / src / libheadlights.cpp @ 90c7a37c

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/**
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 * Copyright (c) 2011 Colony Project
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 * 
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 * Permission is hereby granted, free of charge, to any person
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 * obtaining a copy of this software and associated documentation
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 * files (the "Software"), to deal in the Software without
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 * restriction, including without limitation the rights to use,
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 * copy, modify, merge, publish, distribute, sublicense, and/or sell
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 * copies of the Software, and to permit persons to whom the
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 * Software is furnished to do so, subject to the following
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 * conditions:
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 * 
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 * The above copyright notice and this permission notice shall be
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 * included in all copies or substantial portions of the Software.
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 * 
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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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 * OTHER DEALINGS IN THE SOFTWARE.
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 **/
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/**
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 * @file libheadlights.cpp
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 * @brief Contains headlights declarations and functions
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 * 
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 * Contains functions and definitions for the use of
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 * headlights
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 *
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 * @author Colony Project, CMU Robotics Club
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 * @author Ben Wasserman
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 **/
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#include "libheadlights.h"
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/* ROS node created in libscout.cpp */
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extern ros::NodeHandle libscout_node;
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/** ROS publisher and client declaration */
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ros::Publisher set_headlights_publisher;
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/*!
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 * \brief Initialize the headlights module of libscout.
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 *
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 * Initialize the libscout node as a publisher of set_headlights.
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 */
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void libheadlights_init()
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{
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  set_headlights_publisher =
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                libscout_node.advertise<headlights::set_headlights>("libheadlights", 10);
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}
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/*!
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 * \brief Set headlight colors as a single RGB value
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 * Sets the colors of the headlights as a web color value. Can selectively
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 * select which motors to set, and which to remain at previous color.
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 * \param color The color the headlights should be set to expressed as 0xRRGGBB
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 * \param which A bitmask of which headlights should be set
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 * \return Function status
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 */
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int headlights_set(int color, int which)
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{
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  int red, green, blue;
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        red = (color & RED) >> REDSHIFT;
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        green = (color & GREEN) >> GREENSHIFT;
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        blue = (color & BLUE) >> BLUESHIFT;
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        return headlights_set_rgb(red, green, blue, which);
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}
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/*!
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 * \brief Set headlight colors as separate RGB values
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 * Sets the colors of the headlights as a web color value. Can selectively
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 * select which motors to set, and which to remain at previous color.
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 * \param red The red value the headlights should be set to
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 * \param green The green value the headlights should be set to
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 * \param blue The blue value the headlights should be set to
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 * \param which A bitmask of which headlights should be set
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 * \return Function status
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 */
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int headlights_set_rgb(int red, int green, int blue, int which)
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{
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  /** \todo Set fields of the message based on params */
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        headlights::set_headlights msg;
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  if(!ros::ok())
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        {
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    return LIB_ERROR;
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  }
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        if(which & HL_LEFT)
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        {
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                left_red = red;
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                left_green = green;
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                left_blue = blue;
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        }
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        if(which & HL_RIGHT)
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        {
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                right_red = red;
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                right_green = green;
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                right_blue = blue;
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        }
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  /* Publishes message to set_motors topic */
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  set_headlights_publisher.publish(msg);
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  ros::spinOnce();
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  return LIB_OK;
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}