PFont f;
int vspacing = 48;
int xindent = 10;
float lwidth;
Cursor curs;
Buffer buffer;
int totalLines;
int currentLine = 0;
int bufferMax = 25;


String content = "Max.txt";
String[] lines;
String input = "";



//Text = split(everything,delimiters);

void setup() {
  size(1280,640);
  lines = loadStrings(content);
  println (lines[0]);
  f = loadFont("Helvetica-Compressed-48.vlw");
  textFont(f);
  lwidth = textWidth(" ");
  curs = new Cursor();
  buffer = new Buffer();
  buffer.add(" Are you ready.");
  buffer.add("Are you sure?.");
  buffer.add("I am going to change your World");
  buffer.add("Ok, click in the Window and enter your thoughts!!");
  buffer.add("> ");
  totalLines = height/vspacing - 1;
  currentLine = constrain(buffer.size(),0,totalLines);
  noLoop();
  redraw();
}

void  draw() {
  background(153,294,255);
  textFont(f);
  fill(0,102,204);
  int start = constrain(buffer.size()-totalLines,0,bufferMax);
  for (int i = start; i < buffer.size(); i++) {
    String message = (String) buffer.get(i);
    text(message,xindent,vspacing*(i-start+1));
  }
  String theend = (String) buffer.get(buffer.size()-1);
  int len = theend.length();
  curs.setPos(len+1,buffer.size());
  curs.render();
}

class Buffer {
  ArrayList buffer;

  Buffer() {
    buffer = new ArrayList();
  }

  void add(String s) {
    textFont(f);

    //IMPLEMENT WORD WRAP HERE!!!!!!!!!!
    if (textWidth(s) > width) {
      buffer.add(s);
    } 
    else {
      buffer.add(s);
    }
  }

  int size() {
    return buffer.size();
  }

  String get(int i) {
    if (i < buffer.size()) return (String) buffer.get(i);
    else return "WRONG, Try again!!!";
  }

  void remove(int i) {
    if (i < buffer.size()) buffer.remove(i);

  }
}
class Cursor {

  int x,y;
  boolean blink;
  int saveTime;

  Cursor() {
    x = 200;
    y = 200;
    blink = true;
    saveTime = millis();

  }
  void setPos(int x_, int y_) {
    x = x_;
    y = y_;
  }

  void render() {
    if (blink) {
      stroke(0,255,0);
      fill(0,255,0);
      rect(x*lwidth+2,y*vspacing-16,lwidth-2,16);
    }

    /*if (millis() - saveTime > 500) {
      blink = !blink;
      //println("blink");
      saveTime = millis();
    }*/

  }

}

void keyPressed() {

  //println(int(key));

  if (key == 10) {
    //buffer.add("> " + input);
    buffer.add(lines[int(random(lines.length))]);
    buffer.add("> ");
    input = "";
    while (buffer.size() >= bufferMax) {
      buffer.remove(0);
    }
  } 
  else {
    if (key == 8) {
      if (input.length() > 0) input = input.substring(0,input.length()-1);
    } 
    else if (key >= 32 && key <= 126) {
      input = input + key;
    }
    String putin = "> " + input;
    buffer.remove(buffer.size()-1);
    buffer.add(putin);
  }


  redraw();
}