int black;

task main()
{

 SetSensorType (SENSOR_1, SENSOR_TYPE_LIGHT);
 SetSensorMode (SENSOR_1, SENSOR_MODE_PERCENT);
 SetSensor(SENSOR_2, SENSOR_TOUCH);
 SetSensor(SENSOR_3, SENSOR_TOUCH);
 black =  SensorValue(0);
 while(SENSOR_1 < black + 4 && SENSOR_2 < 1 && SENSOR_3 < 1){} // wait until first movement.
 
while(true){
 if(SENSOR_3 == 1 && SENSOR_2 == 0 && SENSOR_1 < black + 4)
  {
  SendMessage(2);
  while(SENSOR_3 == 1 && SENSOR_2 == 0 && SENSOR_1 < black + 4){}
  }
 // if right touch sensor is pressed and nothing else is changed.
   
   
 if(SENSOR_3 == 0 && SENSOR_2 == 1 && SENSOR_1 < black + 4)
 {
 SendMessage(8);
   while(SENSOR_3 == 0 && SENSOR_2 == 1 && SENSOR_1 < black + 4){}
 }
  // if left touch sensor is pressed and nothing else is changed.
  
 if(SENSOR_1 < black + 4 && SENSOR_2 < 1 && SENSOR_3 < 1)
   {
   SendMessage(5);
     while(SENSOR_1 < black + 4 && SENSOR_2 < 1 && SENSOR_3 < 1){}
   }
 // if nothing is pressed or changed.
 
if(SENSOR_1 > black + 13 && SENSOR_2 < 1 && SENSOR_3 < 1)
   {
   SendMessage(4);
     while(SENSOR_1 > black + 13 && SENSOR_2 < 1 && SENSOR_3 < 1){}
   }
 // if moved left and no touch sensors are pressed  .
 
 
 
   if(SENSOR_1 < black + 13 && SENSOR_1 > black + 4 && SENSOR_2 < 1 && SENSOR_3 < 1)
   {
   SendMessage(6);
     while(SENSOR_1 < black + 13 && SENSOR_1 > black + 4 && SENSOR_2 < 1 && SENSOR_3 < 1){}
   }
 // if moved right and no touch sensors are pressed.

 
   if(SENSOR_1 < black + 13 && SENSOR_1 > black + 4 && SENSOR_2 < 1 && SENSOR_3 == 1)
   {
   SendMessage(3);
     while(SENSOR_1 < black + 13 && SENSOR_1 > black + 4 && SENSOR_2 < 1 && SENSOR_3 == 1){}
   }
 // if moved to the right and if the right sensor is pressed.
 
     if(SENSOR_1 > black + 13 && SENSOR_2 < 1 && SENSOR_3 > 0)
   {
   SendMessage(1);
     while(SENSOR_1 > black + 13 && SENSOR_2 < 1 && SENSOR_3 == 1){}
   }
 // if moved to the left and if right touch sensor is pressed .
 
     if(SENSOR_2 == 1 && SENSOR_3 == 1)
   {
   SendMessage(10);
     while(SENSOR_2 == 1 && SENSOR_3 == 1){}
   }
 // if both touch sensors are pressed.

 
 

}// end } while true
} // end } task main