/*  
  Ryan Raffa - Arduino communication to Max MSP sequencer with LED lights

  Credits: Made use of Arduino2Max.pde
  Copyleft: use as you like
  by Daniel Jolliffe
  Based on a sketch and patch by Thomas Ouellet Fredericks  tof.danslchamp.org

 */

int i;
int x = 0;                              // a place to hold pin values
const int buttonPinOne = 2;
const int ledPinOne = 9;

const int buttonPinTwo = 3;
const int ledPinTwo = 10;

const int buttonPinThree = 4;
const int ledPinThree = 11;

const int buttonPinFour = 5;
const int ledPinFour = 12;

const int buttonPinFive = 6;
const int ledPinFive = 13;


//From Arduino.cc - State Change example
// Variables will change:


int buttonPushCounterOne = 0;         // the current state of the output pin
int buttonStateOne = 0;             // the current reading from the input pin
int lastButtonStateOne = 0;   // the previous reading from the input pin

int buttonPushCounterTwo = 0;         // the current state of the output pin
int buttonStateTwo = 0;             // the current reading from the input pin
int lastButtonStateTwo = 0;   // the previous reading from the input pin

int buttonPushCounterThree = 0;         // the current state of the output pin
int buttonStateThree = 0;             // the current reading from the input pin
int lastButtonStateThree = 0;   // the previous reading from the input pin

int buttonPushCounterFour = 0;         // the current state of the output pin
int buttonStateFour = 0;             // the current reading from the input pin
int lastButtonStateFour = 0;   // the previous reading from the input pin

int buttonPushCounterFive = 0;         // the current state of the output pin
int buttonStateFive = 0;             // the current reading from the input pin
int lastButtonStateFive = 0;   // the previous reading from the input pin

void setup() {
  Serial.begin(115200);               // 115200 is the default Arduino Bluetooth speed

    digitalWrite(ledPinOne,HIGH);              ///startup blink
    digitalWrite(ledPinTwo,HIGH);              ///startup blink
    digitalWrite(ledPinThree,HIGH);              ///startup blink
    digitalWrite(ledPinFour,HIGH);              ///startup blink
    digitalWrite(ledPinFive,HIGH);              ///startup blink
    delay(600);
    digitalWrite(ledPinOne,LOW);              ///startup blink
    digitalWrite(ledPinTwo,LOW);              ///startup blink
    digitalWrite(ledPinThree,LOW);              ///startup blink
    digitalWrite(ledPinFour,LOW);              ///startup blink
    digitalWrite(ledPinFive,LOW);              ///startup blink


    pinMode(buttonPinOne, INPUT);
    pinMode(buttonPinTwo, INPUT);
    pinMode(buttonPinThree, INPUT);
    pinMode(buttonPinFour, INPUT);
    pinMode(buttonPinFive, INPUT);
    
    pinMode(ledPinOne, OUTPUT);
    pinMode(ledPinTwo, OUTPUT);
    pinMode(ledPinThree, OUTPUT);
    pinMode(ledPinFour, OUTPUT);
    pinMode(ledPinFive, OUTPUT);

 }



void loop() { 

  if (Serial.available() > 0){         // Check serial buffer for characters
        
    if (Serial.read() == 'r') {       // If an 'r' is received then read the pins
      for (int pin= 0; pin<=5; pin++){      // Read and send analog pins 0-5
        x = analogRead(pin);
        sendValue (x);
      }

      for (int pin= 2; pin<=13; pin++){     // Read and send digital pins 2-13
        x = digitalRead(pin);
        sendValue (x);
      }
        Serial.println();                 // Send a carriage returnt to mark end of pin data. 
        delay (5);                        // add a delay to prevent crashing/overloading of the serial port
    }
 }


//check pin 2
  buttonStateOne = digitalRead(buttonPinOne);
  
  if (buttonStateOne != lastButtonStateOne) {
    if (buttonStateOne == HIGH) {
    buttonPushCounterOne++;
    }
    lastButtonStateOne = buttonStateOne;    
}

if (buttonPushCounterOne % 2 == 0) {
  digitalWrite(ledPinOne, LOW);
} else {
  digitalWrite(ledPinOne, HIGH);
}

//check pin 3
  buttonStateTwo = digitalRead(buttonPinTwo);
  
  if (buttonStateTwo != lastButtonStateTwo) {
    if (buttonStateTwo == HIGH) {
    buttonPushCounterTwo++;
    }
    lastButtonStateTwo = buttonStateTwo;    
}

if (buttonPushCounterTwo % 2 == 0) {
  digitalWrite(ledPinTwo, LOW);
} else {
  digitalWrite(ledPinTwo, HIGH);
}

//check pin 4
  buttonStateThree = digitalRead(buttonPinThree);
  
  if (buttonStateThree != lastButtonStateThree) {
    if (buttonStateThree == HIGH) {
    buttonPushCounterThree++;
    }
    lastButtonStateThree = buttonStateThree;    
}

if (buttonPushCounterThree % 2 == 0) {
  digitalWrite(ledPinThree, LOW);
} else {
  digitalWrite(ledPinThree, HIGH);
}

//check pin 5
  buttonStateFour = digitalRead(buttonPinFour);
  
  if (buttonStateFour != lastButtonStateFour) {
    if (buttonStateFour == HIGH) {
    buttonPushCounterFour++;
    }
    lastButtonStateFour = buttonStateFour;    
}

if (buttonPushCounterFour % 2 == 0) {
  digitalWrite(ledPinFour, LOW);
} else {
  digitalWrite(ledPinFour, HIGH);
}

//check pin 6
  buttonStateFive = digitalRead(buttonPinFive);
  
  if (buttonStateFive != lastButtonStateFive) {
    if (buttonStateFive == HIGH) {
    buttonPushCounterFive++;
    }
    lastButtonStateFive = buttonStateFive;    
}

if (buttonPushCounterFive % 2 == 0) {
  digitalWrite(ledPinFive, LOW);
} else {
  digitalWrite(ledPinFive, HIGH);
}


  }


void sendValue (int x){              // function to send the pin value followed by a "space". 
 Serial.print(x);
 Serial.print(32, BYTE); 
}