import processing.serial.*;

Serial myPort;

String data = "";
int iAngle = 0;
int iDistance = 999;

int index1 = 0;
float pixsDistance;

String noObject = "";
int lastRxMs = 0;   // en son veri geldiği zaman

void setup() {
  size(1200, 700);
  smooth();

  background(0); // <<< İBREYİ GARANTİ GÖRÜNÜR YAPAR
  println("Available serial ports:");
  println(Serial.list());

  myPort = new Serial(this, "COM3", 9600);
  myPort.bufferUntil('.');
}

void draw() {
  // Afterglow (iz bırakma)
  noStroke();
  fill(0, 8); // iz daha uzun kalsın: 4-10 arası güzel
  rect(0, 0, width, height - height*0.065);

  fill(98, 245, 31);
  drawRadar();
  drawLine();
  drawObject();
  drawText();

  // Eğer 500ms'dir veri gelmiyorsa demo tarama (ibrenin çalıştığını gör)
  if (millis() - lastRxMs > 500) {
    iAngle = (iAngle + 2) % 181;
    iDistance = 999;
  }
}

void serialEvent(Serial p) {
  String s = p.readStringUntil('.');
  if (s == null) return;

  s = trim(s);
  if (s.length() < 3) return;     // çok kısa/boş paketleri at
  if (s.endsWith(".")) s = s.substring(0, s.length()-1);

  index1 = s.indexOf(",");
  if (index1 < 0) return;

  String aStr = trim(s.substring(0, index1));
  String dStr = trim(s.substring(index1+1));

  try {
    iAngle = constrain(Integer.parseInt(aStr), 0, 180);
    iDistance = Integer.parseInt(dStr);
    lastRxMs = millis();          // veri geldi
  } catch (Exception e) {
    // parse edilemeyen satırları at
  }
}

void drawRadar() {
  pushMatrix();
  translate(width/2, height-height*0.074);
  noFill();
  strokeWeight(2);
  stroke(98, 245, 31);

  arc(0, 0, (width-width*0.0625), (width-width*0.0625), PI, TWO_PI);
  arc(0, 0, (width-width*0.27),   (width-width*0.27),   PI, TWO_PI);
  arc(0, 0, (width-width*0.479),  (width-width*0.479),  PI, TWO_PI);
  arc(0, 0, (width-width*0.687),  (width-width*0.687),  PI, TWO_PI);

  line(-width/2, 0, width/2, 0);
  line(0, 0, (-width/2)*cos(radians(30)),  (-width/2)*sin(radians(30)));
  line(0, 0, (-width/2)*cos(radians(60)),  (-width/2)*sin(radians(60)));
  line(0, 0, (-width/2)*cos(radians(90)),  (-width/2)*sin(radians(90)));
  line(0, 0, (-width/2)*cos(radians(120)), (-width/2)*sin(radians(120)));
  line(0, 0, (-width/2)*cos(radians(150)), (-width/2)*sin(radians(150)));
  line((-width/2)*cos(radians(30)), 0, width/2, 0);

  popMatrix();
}

void drawObject() {
  pushMatrix();
  translate(width/2, height-height*0.074);
  strokeWeight(9);
  stroke(255, 10, 10);

  // eski ölçek: 40cm’e göre ayarlıydı
  pixsDistance = iDistance * ((height-height*0.1666)*0.025);

  if (iDistance > 0 && iDistance < 40) {
    line(pixsDistance*cos(radians(iAngle)), -pixsDistance*sin(radians(iAngle)),
         (width-width*0.505)*cos(radians(iAngle)), -(width-width*0.505)*sin(radians(iAngle)));
  }
  popMatrix();
}

void drawLine() {
  pushMatrix();
  strokeWeight(9);
  stroke(30, 250, 60);
  translate(width/2, height-height*0.074);
  line(0, 0, (height-height*0.12)*cos(radians(iAngle)), -(height-height*0.12)*sin(radians(iAngle)));
  popMatrix();
}

void drawText() {
  pushMatrix();

  if (iDistance > 40) noObject = "Out of Range";
  else noObject = "In Range";

  fill(0);
  noStroke();
  rect(0, height-height*0.0648, width, height);

  fill(98, 245, 31);
  textSize(25);
  text("10cm", width-width*0.3854, height-height*0.0833);
  text("20cm", width-width*0.281,  height-height*0.0833);
  text("30cm", width-width*0.177,  height-height*0.0833);
  text("40cm", width-width*0.0729, height-height*0.0833);

  textSize(40);
  text("ROBOVISION ACADEMY", width-width*0.875, height-height*0.0277);
  text("Açı= " + iAngle + " ", width-width*0.48, height-height*0.0277);
  text("Mesafe=  ", width-width*0.26, height-height*0.0277);

  if (iDistance < 40) text("              " + iDistance + " cm", width-width*0.225, height-height*0.0277);
  else text("              --", width-width*0.225, height-height*0.0277);

  popMatrix();
}