import processing.serial.*;
import cc.arduino.*;

int[] xvals;
int val;
int arrayindex = 0;
Arduino arduino;
int ledPin=9;
int potPin=0;
PrintWriter output;

void setup()
{
  size(500, 500);
  xvals = new int[width];
  arduino = new Arduino(this, Arduino.list()[1], 57600);
  arduino.pinMode(ledPin, Arduino.OUTPUT);
  PFont font;
  font = loadFont("HelveticaNeue-Light-14.vlw");
  textFont(font);
 //  output = createWriter("values_alert.txt"); 
 output = createWriter("values_hyperalert.txt"); 
 
}


void draw()
{
  background(0);
 
  // shift array left by one
  for(int i=1; i<width; i++) {
    xvals[i-1] = xvals[i];
  }

  // add the new values to the end of the array
  // read potentiometer (0..1024), divide by four (0..255)
  // to stay within canvas drawing limits
  val = arduino.analogRead(potPin);
  xvals[width-1] = val/4;

  // draw the array
  for(int i=1; i<width; i++) {
    stroke(255);
    point(i, 255-xvals[i]); //flip y coordinate so 0 is at bottom
  }
  textAlign(RIGHT);
  text(val, 200, 30);
      output.println(val); // Write the coordinate to the file
  }
  
void mousePressed() {
  output.flush(); // Writes the remaining data to the file
  output.close(); // Finishes the file
  exit(); // Stops the program
}