// Double joystick serial application
// By Patrick Hebron

import processing.serial.*;

Serial myPort; 

float leftH = 0;
float leftV = 0;
float rightH = 0;
float rightV = 0;

float lhMin = 9999;
float lhMax = -9999;
float lvMin = 9999;
float lvMax = -9999;
float rhMin = 9999;
float rhMax = -9999;
float rvMin = 9999;
float rvMax = -9999;

void setup () {
  size(200, 200); 
  myPort = new Serial(this, Serial.list()[0], 9600);
}

void draw () {
}

void serialEvent (Serial myPort) {
  String serialIn = myPort.readStringUntil(10);
  if(serialIn != null) {
    String[] serialInPts = serialIn.split(",");
    if(serialInPts.length == 5) { 
      if(int(serialInPts[0])<lhMin)
        lhMin = int(serialInPts[0]);
      else if(int(serialInPts[0])>lhMax)
        lhMax = int(serialInPts[0]);
      if(int(serialInPts[1])<lvMin)
        lvMin = int(serialInPts[1]);
      else if(int(serialInPts[1])>lvMax)
        lvMax = int(serialInPts[1]);
      if(int(serialInPts[2])<rhMin)
        rhMin = int(serialInPts[2]);
      else if(int(serialInPts[2])>rhMax)
        rhMax = int(serialInPts[2]);
      if(int(serialInPts[3])<rvMin)
        rvMin = int(serialInPts[3]);
      else if(int(serialInPts[3])>rvMax)
        rvMax = int(serialInPts[3]);
      
      leftH = 255-map(int(serialInPts[0]), lhMin, lhMax, 0, 255);
      leftV = map(int(serialInPts[1]), lvMin, lvMax, 0, 255);
      rightH = 255-map(int(serialInPts[2]), rhMin, rhMax, 0, 255);
      rightV = map(int(serialInPts[3]), rvMin, rvMax, 0, 255);
      
      println("LeftH: " + leftH + " LeftV: " + leftV + " RightH: " + rightH + " RightV: " + rightV);
    }
  }
}