//Arduino code for the Gangster puppet. We have 7 sensor values.
//We also have one physical interaction, the lighting of the cigar,
//which is enabled through the BlinkM and activated by the force
//sensor. The BlinkM loops a script to make it gradually get
//brighter and darker, simulating smoking.

//Sensor pin numbers
#define ELBOW 0
#define BODYX 1
#define BODYY 2
#define HEADX 3
#define HEADY 4
#define HEADZ 5
#define CIGAR 8
#define BLINKM 11

//Sensor read values
float elbow = 0;
float bodyX = 0;
float bodyY = 0;
float headX = 0;
float headY = 0;
float headZ = 0;
float cigar = 0;
float cigarLast = 0;

//Addressing variables
char addressChar;
const char myAddress = 'G';

//Setup code
void setup()
{
  //Start listening on serial port 9600
  Serial.begin(9600);
  
  //Sets the mode (input or output) for the specified pins
  pinMode(CIGAR, INPUT); //Reading in data from force sensor
  pinMode(BLINKM, OUTPUT); //Turns BlinkM on/off; the BlinkM will run a preprogrammed script when turned on
}//end void setup()

//Loop forever
void loop()
{   
  //Read the various sensor values
  elbow = analogRead(ELBOW);
  bodyX = analogRead(BODYX);
  bodyY = analogRead(BODYY);
  headX = analogRead(HEADX);
  headY = analogRead(HEADY);
  headZ = analogRead(HEADZ);
  cigar = digitalRead(CIGAR); //Digital read of HIGH or LOW
  
  //Checks if Processing has sent a request for data
  if (Serial.available() > 0) {
    addressChar = char(Serial.read());
  }
    
  //Checks that address is "G"
  if (addressChar == myAddress) {
    //Address matches ours, so create a reply comma-delimited message
      
    //Start message with our address
    Serial.print(myAddress);
    Serial.print(',');
    
    Serial.print(elbow);
    Serial.print(",");
    Serial.print(bodyX);
    Serial.print(",");
    Serial.print(bodyY);
    Serial.print(",");
    Serial.print(headX);
    Serial.print(",");
    Serial.print(headY);
    Serial.print(",");
    Serial.print(headZ);
    Serial.print(",");
    Serial.print(cigar);
    //Terminate message with newline character
    Serial.print('\n');
  }
    
  //Reset received address
  addressChar = -1;
  
  //Checks if the value read from the force sensor has changed
  //If it has, turn the BlinkM on if force sensor is pressed, or
  //turn if off if the user has let go
  if (cigar != cigarLast) {
    if (cigar == HIGH) {
      //Power BlinkM light on
      digitalWrite(BLINKM, HIGH);
    } else {
      //Power BlinkM light off
      digitalWrite(BLINKM, LOW);
    }
  }
    
  //Set the last value from the force sensor to that currently read
  cigarLast = cigar;
}//end void loop()