/****************RGB LED**************/
int redPin = A1;
int greenPin = D1;
int bluePin = D0;

int colors[3] = {255,255,255};

/************light sensor**************/
int photoCellPin = A0;
int ledPin = D7;
int photoCellReading = 0;

/************force sensor**************/
int forcePin = A6;
int forceCellReading = 0;
int redLedLinePin = A5;



int debugValue = 0;

void setup()
{
  /************setting LED************/
  pinMode(redPin, OUTPUT);
  pinMode(greenPin, OUTPUT);
  pinMode(bluePin, OUTPUT);

  pinMode(redLedLinePin, OUTPUT);

  digitalWriteColor();

  /********setting photosensor********/
  pinMode(ledPin, OUTPUT);

  /**********report to cloud**********/
  //Spark.function("led",ledControl);
  Spark.variable("light", &photoCellReading, INT);
  Spark.variable("force", &forceCellReading, INT);
  Spark.variable("red", &colors[0], INT);
  Spark.variable("green", &colors[1], INT);
  Spark.variable("blue", &colors[2], INT);
  Spark.variable("debug", &debugValue, INT);
//  RGB.color(redV, greenV, blueV);
}

void loop()
{
  /****reading the value of light sensor****/
  photoCellReading = analogRead(photoCellPin);
  forceCellReading = analogRead(forcePin);

  /****random the color while the light changing****/
  if(photoCellReading > 200 && photoCellReading < 1000)
    ledSingleColorRandom();
  if(photoCellReading <= 200)
    ledAllColorRandom();
  else
    {
      digitalWriteColor();
      debugValue = 0;
    }
  /**** the force ****/
  if(forceCellReading > 1000)
    analogWrite(redLedLinePin, random(0, 255));
  if(forceCellReading <= 1000)
    analogWrite(redLedLinePin, 0);
}


/********when the light gets dark (200 - 1000)********/
/********the RGB LED blink randomly********/
/********BUT COLOR BY COLOR********/
void ledSingleColorRandom()
{
  int randomValue = random(0, 255);
  int whichColor = random(1,100)%3;

  //colors[0] = randomValue;
  colors[whichColor] = randomValue;

  debugValue = 1;
  digitalWriteColor();

  delay(1000);
  /********set all color's value back********/
  /****!!don't forget it!!!! Setting back here****/
  for(int i = 0; i <3; i++)
  {
    colors[i] = 255;
  }
}


/********when the light gets dark (0 - 200)********/
/********the RGB LED blink randomly********/
/********ALL COLOR********/
void ledAllColorRandom()
{
  for(int i = 0; i <3; i++)
  {
    colors[i] = random( 0, 255);
  }

  debugValue = 2;
  digitalWriteColor();

  delay(800);
  /********set all color's value back********/
  /****!!don't forget it!!!! Setting back here****/
  for(int i = 0; i <3; i++)
  {
    colors[i] = 255;
  }
}

/********write the value to each color********/
void digitalWriteColor()
{
  analogWrite(redPin,colors[0]);
  analogWrite(greenPin,colors[1]);
  analogWrite(bluePin,colors[2]);
}