/* This program reads the center light sensor on the front 
   of the Scribbler 2 robot and reports the brightness category 
   of the current environment.       */

#include <stdio.h>
#include "MyroC.h"

int main ()
{
  printf("This program reports the brightness of the Scribbler 2's environment\n");

  /* connect to the Scribbler 2 robot */
  rConnect ("/dev/rfcomm0");

  /* obtain the average of 3 readings of the center light sensor */
  int lightReading = rGetLightTxt ("center", 3);
  printf ("The reading from the center light sensor is %d (out of 65535)\n",
	  lightReading);

  /* determine the brightness category */
  switch (lightReading/10000)
    {
    case 0:
      printf ("The area is very bright\n");
      break;
    case 1:
      printf ("The area is bright\n");
      break;
    case 2:
      printf ("The area has moderate lightt\n");
      break;
    case 3:
      printf ("The area has dim light\n");
      break;
    case 4:
      printf ("The area is dark\n");
      break;
    case 5:
      printf ("The area is very dark\n");
      break;
    case 6:
      printf ("The area is pitch black\n");
      break;
    default:
      printf ("computational error --- no category identified\n");
      break;
    }
}