import processing.serial.*;

PFont font;
String buff = "";
int val = 0;
int NEWLINE = 10;
int xPos,yPos,zPos = 0;
int displaySize = 2;
int an1, an2, an3;

int colorChange = 0;

Serial port;

void setup(){
  font = loadFont("AlbaMatter-48.vlw");
  background(80);
  size(900,600);
  smooth();

  port = new Serial(this, "COM9", 19200);
}

void draw(){
  // new background over old
  fill(0,2);
  noStroke();
  rect(0,0,width,height);

  // wipe out a small area in front of the new data


  // check for serial, and process
  while (port.available() > 0) {
    serialEvent(port.read());
  }
}


void serialEvent(int serial) { 
  if(serial != '\n') { 
    buff += char(serial);
  } 
  else {
    int curX = buff.indexOf("X");
    int curY = buff.indexOf("Y");
    int curZ = buff.indexOf("Z");

    if(curX >=0){
      String val = buff.substring(curX+1);
      an1 = Integer.parseInt(val.trim());

      xPos++;
      if(xPos > width) xPos = 0;
      fill(0);
      noStroke();

    }    
    if(curY >=0){
      String val = buff.substring(curY+1);
      an2 = Integer.parseInt(val.trim());

      yPos++;
      if(yPos > width) yPos = 0;

    }
    if(curZ >=0){
      String val = buff.substring(curZ+1);
      an3 = Integer.parseInt(val.trim());

      zPos++;
      if(zPos > width) zPos = 0;
      rect(xPos+20,0,250,height);       
      sensorTic(xPos,an1-350,"x-axis "+an1,0,255,0,0,255,0);
      sensorTic(yPos,an2-175,"y-axis "+an2,255,0,0,255,0,0);      
      sensorTic(zPos,an3,"z-axis"+an3,0,0,255,0,0,255);     
    }

    // Clear the value of "buff"
    buff = "";
  }
}

void sensorTic(int x, int y, String txt, int sr, int sg, int sb, int fr, int fg, int fb){
  stroke(sr,sg,sb);
  fill(fr,fg,fb);
  ellipse(x,y,displaySize,displaySize);
  textFont(font);
  textSize(40);
  text(txt,x+25,y); 
}