/* 
 *  Bike Safely... with Lasers! - A Build18 Project
 *
 *  Subproject - Bike Turn Signal Jacket
 *
 *  This code uses a momentary pushbutton as an on/off toggle
 *  for a set of LEDs sewn to a jacket. So far, the pushcutton
 *  activates a simple blink that bikes for seven seconds
 *  while lighting an indicator light.
 *
 *  TODO: Add XBee communication sending state of system to
 *  other half of project.
 *    
 *  Created:  Jan 10, 2010
 *  Modified: Jan 11, 2010
 *
 *  Author: Nicolas Paris
 *  Email: bobabot1@gmail.com
 *  Website: http://hacktastico.com
 *
 *  Code is based off of Leah Buechley's Turn Signal Biiking Jacket
 *  found here: http://web.media.mit.edu/~leah/LilyPad/build/turn_signal_jacket.html
 *  as well as the StateChangeDetection code example by Tom Igoe
 *
 *
 */


const int leftLED = 13;
const int leftButton = 3;
const int leftIndicator = 10;

const int rightLED = 12;
const int rightButton = 11;
const int rightIndicator = 10;

int leftState = 0;
int leftStatePrevious = 0;
int rightState = 0;
int rightStatePrevious = 0;

int i = 0;

void setup() {
  pinMode(leftLED,OUTPUT);
  pinMode(rightLED,OUTPUT);

  pinMode(leftIndicator,OUTPUT);
  pinMode(rightIndicator,OUTPUT);

  pinMode(leftButton,INPUT);
  pinMode(rightButton,INPUT);
}

void loop() {
  leftState = digitalRead(leftButton);
  rightState = digitalRead(rightButton);

  if(leftState != leftStatePrevious)
  {
    if(leftState == HIGH)
    {
      digitalWrite(leftIndicator,HIGH);
      // Send some sort of notice through XBee to start flashing
      for(i=0;i<7;i++)
      {
        digitalWrite(leftLED,HIGH);
        delay(500);
        digitalWrite(leftLED,LOW);
        delay(500);
      }
      digitalWrite(leftIndicator,LOW);
    }
    leftStatePrevious = leftState;
  }

  if(rightState != rightStatePrevious)
  {
    if(rightState == HIGH)
    {
      digitalWrite(rightIndicator,HIGH);
      // Send some sort of notice through XBee to start flashing
      for(i=0;i<7;i++)
      {
        digitalWrite(rightLED,HIGH);
        delay(500);
        digitalWrite(rightLED,LOW);
        delay(500);
      }
      digitalWrite(rightIndicator,LOW);
    }
    rightStatePrevious = rightState;
  }

}