I just downloaded processing and installed python mode. I am running processing 3.3.5 on a Macbook Air (OS Sierra 10.13.6).

I'm trying to run a very basic code :

a=input()
print(a)

But it won't work I got the error:

 processing.app.SketchException: EOFError: raw_input()
    at jycessing.mode.run.SketchRunner.convertPythonSketchError(SketchRunner.java:248)
    at jycessing.mode.run.SketchRunner.access$4(SketchRunner.java:227)
    at jycessing.mode.run.SketchRunner$3.run(SketchRunner.java:122)
    at java.lang.Thread.run(Thread.java:748)

What should I do please ?

import static javax.swing.JOptionPane.*;          
void draw() {
          final String id = showInputDialog("Please enter new ID");
          if (id == null)   exit();
          else if ("".equals(id)){
            showMessageDialog(null, "Empty ID Input!!!", 
            "Error", ERROR_MESSAGE);
         }
  }

I just installed processing on my Mac High Sierra version 10.13.3 and when try to run gctrl.pde does not work. When executing

String result = (String) JOptionPane.showInputDialog (this,
  "Select the serial port that corresponds to your Arduino board.",
  "Select serial port",
  JOptionPane.PLAIN_MESSAGE,
  null,
  Serial.list (),
  0);

gives problems in the showInputDialog function.

Someone could help me?

I have a relatively simple Processing sketch which connects to an external hardware sensor via Bluetooth (serial port) and visualizes the data. The sketch works acceptably on my computer, but since the COM (serial) port is hard-coded within the sketch, I need to recompile the sketch for every different computer on which I use the program.

To improve the portability of my Processing sketch across different computers/configurations, I would like to be able to let the user select the COM (serial) port within the sketch or "void setup()" routine.

Conceptually: void setup() { // List all the available serial ports: println(Serial.list()); println("Enter serial port number: ");

// Wait for the user to input a serial port number // (not sure how to get user input within the setup() routine, though) // user_serial_port = ???

// Open the port that the user selected using the default rate: myPort = new Serial(this, Serial.list()[user_serial_port], 57600); }

I have looked in the forum for some examples of user-selectable COM ports, but it seems like almost everyone is hard-coding the COM port number in their sketch. Thank you in advance for some help/guidance with this request.

Regards,

Geoffrey

Now I'm not a programmer by trade, but my university offers a programming unit related to digital arts using processing. An assignment I'm working on requires the user to input an integer value which is then used to create a range for randomization. Ideally the output should look like a bunch of random high-rises, creating a city skyline (abstract art don't question it) with 5 "high-rises". However, only one is appearing and the GUI appears again. Any help would be much appreciated as I'm at wits end with my deadline approaching fast :|

import static javax.swing.JOptionPane.*; //GUI element class

void setup() { //setup canvas size(1250,750); //sets size of canvas

frameRate(10);

}

void draw(){

    String input = showInputDialog("Type in integer number...");
    int num = parseInt(input == null? "" : input, MIN_INT);

    if (input == null)  showMessageDialog(null, "You didn't enter anything!", "Alert", ERROR_MESSAGE);
    else if (num == MIN_INT)  showMessageDialog(null, "Entry \"" + input + "\" isn't a number!", "Alert", ERROR_MESSAGE);
    else showMessageDialog(null, "Number " + num + " has been registered.", "Info", INFORMATION_MESSAGE);



for(int i = 0 ; i < 5 ; i++) {




  background(random(125,175),random(125,175),random(125,175));  //sets colour of canvas, ideally in rgb

  fill (random (150,255));

  float X = random(num,num+400);
  float Y = random(num,num+450);

  rect(X,Y,150,750);

}

String x; x= JOptionPane.showInputDialog(null, "letter entry"); char y= x.charAt(0);

So it takes x and turns it to a char, but how would I add the letters inputted into an array? It takes one letter at a time, so new letters would be added as each input is accepted.

Also, how would I be able to prevent duplicates in this? Say the user entered "a" and tried to enter "a" again, it would create an error dialogue and ask for a different letter. Thanks in advance :)

import javax.swing.JOptionPane;
import grafica.*; 
GPlot plot1;
String input;


void setup(){
  size(500, 500);
  background(255);

  float[] firstPlotPos = new float[] {0, 0};
  float[] panelDim = new float[] {200, 200};
  float[] margins = new float[] {60, 70, 40, 30};

  GPlot plot1 = new GPlot(this);
  plot1.setPos(firstPlotPos);
  plot1.setMar(0, margins[1], margins[2], 0);
  plot1.setDim(panelDim);
  plot1.setAxesOffset(0);
  plot1.setTicksLength(-4);
  plot1.getXAxis().setDrawTickLabels(false);

  String num = JOptionPane.showInputDialog(null,"Enter the coefficient of x²: ", "Text input", JOptionPane.QUESTION_MESSAGE);
  int num1=Integer.parseInt(num);
  String num4 = JOptionPane.showInputDialog(null,"Enter the coefficient of x: ", "Text input", JOptionPane.QUESTION_MESSAGE);
  int num2=Integer.parseInt(num4);
  String num5 = JOptionPane.showInputDialog(null,"Enter the constant: ", "Text input", JOptionPane.QUESTION_MESSAGE);
  int num3=Integer.parseInt(num5);

  println(quadratic(num1, num2, num3));
  println(quadratic1(num1, num2, num3));

   int nPoints = 21; 
  GPointsArray points1 = new GPointsArray(nPoints);

  for (int i = 0; i < nPoints; i++) {
    points1.add(i,(num1*((i)*(i))+(num2*(i))+num3));
    }


 plot1.setPoints(points1);
  plot1.setTitleText("Quadratic equation graph");
  plot1.getTitle().setRelativePos(1);
  plot1.getTitle().setTextAlignment(CENTER);
  plot1.getYAxis().setAxisLabelText("Y Axis");

  plot1.beginDraw();
  plot1.drawBox();
  plot1.drawXAxis();
  plot1.drawYAxis();
  plot1.drawTopAxis();
  plot1.drawRightAxis();
  plot1.drawTitle();
  plot1.drawPoints();
  plot1.drawLines();
  plot1.endDraw();
}

float quadratic(float a, float b, float c){
  return (-b + sqrt( b*b - 4*a*c)) / (2*a);
  }
  float quadratic1(float d, float e, float f){
  return (-e - sqrt( e*e - 4*d*f)) / (2*d);
  }

import javax.swing.JOptionPane;

I exported an application. I opens fine on my computer using mac 10.9 which I used for the export. but when open it on another mac with 10.7 it doesnt work. First I thought it was because of old operating system so I tried to export it with processing 2 instead of 3 but with the same result.

I looked in the system logs and it says permission denied error. I guess its because the application is not signed (?) and the apple Gatekeeper system prevent it from open.

How can I sign my exported application? Any help would be very much appreciated!

thanks

import processing.serial.*;

import cc.arduino.*;

import static javax.swing.JOptionPane.*;
import javax.swing.JPasswordField;


final StringDict accounts = new StringDict(
  new String[] {
  "john", "tony", "amy"
  }
  , new String[] {
    "ilikedogs", "husky", "pepsi"
  }
  );

final JPasswordField pwd = new JPasswordField();

{
  println(accounts);
} 

PImage startGameBackground;
PImage kitchen;
PImage dog;
float dogx=800, dogy=600;
HealthBar hb0 = new HealthBar();
boolean isWashed=false;

PImage achievment2;

int stage =1;
Serial port;

Fountain f = new Fountain();
//Ball b = new Ball(x,y,d,xs,ys);
ArrayList<Ball>ballList;

void setup() {
  size(1800, 900);
  String comPort = "COM3";

  stage =1;
  port = new Serial(this, comPort, 9600);

  f.fountainSetup(); 
  startGameBackground = loadImage("startGameBackground.png");
  kitchen = loadImage("kitchen.png");
  dog = loadImage("washDog.png");
  startGameBackground.resize(1800, 900);
  kitchen.resize(1800, 900);
  achievment2 = loadImage("achievment2.png");
}

void draw() {

  if (stage ==1) {

    background(startGameBackground);

    if (frameCount == 10)  surface.setVisible(true);


    String user = askUser();

    if (user == null)           confirmQuit();
    else if (!"".equals(user))  askPass(user);

  } else if (stage ==2) {

    background(kitchen);
    image(dog, dogx, dogy);
    hb0.draw();
    isWashed =true;

    f.fountainDraw();

    //if (hb0.value <100) {
    //   //delay(1000);
    //   hb0.value += .5;
    // }

    // else if(hb0.value == hb0.max){
    //   println("Here is the achievment"); 
    //   image(achievment2, 500,100);
  }
}
}

String askUser() {
  String id = showInputDialog("Please enter user:");

  if (id == null)
    showMessageDialog(null, "You've canceled login operation!"
      , "Alert", ERROR_MESSAGE);

  else if ("".equals(id))
    showMessageDialog(null, "Empty user input!"
      , "Alert", ERROR_MESSAGE);

  else if (!accounts.hasKey(id = id.toLowerCase()))
    showMessageDialog(null, "Unknown \"" + id + "\" user!" + (id = "")
      , "Alert", ERROR_MESSAGE);

  return id;
}

boolean askPass(String id) {
  boolean isLogged = false;
  pwd.setText("");

  int action = showConfirmDialog(null, pwd
    , "Now enter password:", OK_CANCEL_OPTION);

  if (action != OK_OPTION) {
    showMessageDialog(null, "Password input canceled!"
      , "Alert", ERROR_MESSAGE);

    return false;
  }

  String phrase = pwd.getText();
  //String phrase = new String(pwd.getPassword());

  if ("".equals(phrase))
    showMessageDialog(null, "Empty password input!"
      , "Alert", ERROR_MESSAGE);

  else if (accounts.get(id).equals(phrase)) {
    showMessageDialog(null, "Welcome \"" + id + "\"!\nYou're logged in!"
      , "Info", INFORMATION_MESSAGE);

    isLogged = true;
    stage=2;
  } else
    showMessageDialog(null, "Password \"" + phrase + "\" mismatch!"
      , "Alert", ERROR_MESSAGE);

  return isLogged;
}

void confirmQuit() {
  if (showConfirmDialog(null, "Wanna quit then?", "Exit"
    , OK_CANCEL_OPTION) == OK_OPTION)  exit();
}


public class Ball {

  float x, y, xSpeed, ySpeed, diameter;
  int dropColour;
  boolean isAlive;
  int stepsAlive;
  HealthBar hb0 = new HealthBar();

  public Ball(float x, float y, float d, float xs, float ys) {
    this.x=x;
    this.y =y;
    this.diameter =d;
    xSpeed =xs;
    ySpeed =ys;
    isAlive = true;
    int stepsAlive =0 ;
  }

  public void move() {
    stepsAlive++;
    x = x + xSpeed;
    y = y + ySpeed;

    if (x >=800) {

      xSpeed = -xSpeed;
    }

    if (x <=950) {

      xSpeed = -xSpeed;
    }

    ySpeed = ySpeed +0.1F;

    if (y  > 800) {
      ySpeed = -ySpeed;
    }
  }

  public void isDead() {

    if (stepsAlive >= 400) {
      isAlive = false;
    }

    if (dist(x, y, dogx, dogy) <100  ) {

      isAlive = false;
    }

    if (y  > 800) {
      isAlive =false;
    }
  }
}


import ddf.minim.*;

public class Fountain {
  ArrayList<Ball> ballList;
  AudioPlayer player;
  Minim minim;
  HealthBar hb0 = new HealthBar();

  void fountainSetup() {
    //size(600,600); 
    ballList = new ArrayList<Ball>();
    //minim = new Minim(this);
  }

  public void fountainDraw() {
    //background(255,255,255);

    // if (mousePressed){
    if (mousePressed ==true) {
      float xSpeed = (float)(-3 + Math.random()*6);
      Ball b = new Ball(880, 400, 20, xSpeed, -2); 

      b.dropColour = color(204, 255, 255);

      ballList.add(b);
    }

    for (int i =0; i <ballList.size(); i++) {
      Ball b2 = ballList.get(i);

      fill(b2.dropColour);
      ellipse(b2.x, b2.y, b2.diameter, b2.diameter);
      b2.move();
      //println("working");

      b2.isDead();

      if (b2.isAlive == false)
        ballList.remove(b2);

          println(dogy + ""+ "This thing is broke");
        }
      }
    }

class HealthBar {
  float value, max, x, y, w, h;
  color backing, bar;
  HealthBar(){
    value = 0;
    max = 100;
    x = 800;
    y = 60;
    w = 200;
    h = 30;
    backing = color(255,0,0);
    bar = color(0,255,0);
  }
  void draw(){
    fill(backing);
    stroke(0);
    rect(x,y,w,h);
    fill(bar);
    rect(x,y,map(value,0,max,0,w),h);
  }
}

import static javax.swing.JOptionPane.*;
import javax.swing.JPasswordField;

final StringDict accounts = new StringDict(
  new String[] {
  "baptiste", "tanguy", "alexis"
  }
  , new String[] {
    "bap", "guy", "ex"
  }
  );

final JPasswordField pwd = new JPasswordField();

{
  println(accounts);
}

void draw() {
  if (frameCount == 1)  frame.setVisible(false);

  String user = askUser();

  if (user == null)           confirmQuit();
  else if (!"".equals(user))  askPass(user);
}

String askUser() {
  String id = showInputDialog("Please enter user:");

  if (id == null)
    showMessageDialog(null, "You've canceled login operation!"
      , "Alert", ERROR_MESSAGE);

  else if ("".equals(id))
    showMessageDialog(null, "Empty user input!"
      , "Alert", ERROR_MESSAGE);

  else if (!accounts.hasKey(id = id.toLowerCase()))
    showMessageDialog(null, "Unknown \"" + id + "\" user!" + (id = "")
      , "Alert", ERROR_MESSAGE);

  return id;
}

boolean askPass(String id) {
  boolean isLogged = false;
  pwd.setText("");

  int action = showConfirmDialog(null, pwd
    , "Now enter password:", OK_CANCEL_OPTION);

  if (action != OK_OPTION) {
    showMessageDialog(null, "Password input canceled!"
      , "Alert", ERROR_MESSAGE);

    return false;
  }

  String phrase = pwd.getText();
  //String phrase = new String(pwd.getPassword());

  if ("".equals(phrase))
    showMessageDialog(null, "Empty password input!"
      , "Alert", ERROR_MESSAGE);

  else if (accounts.get(id).equals(phrase)) {
    showMessageDialog(null, "Welcome \"" + id + "\"!\nYou're logged in!"
      , "Info", INFORMATION_MESSAGE);

    isLogged = true;
  } else
    showMessageDialog(null, "Password \"" + phrase + "\" mismatch!"
      , "Alert", ERROR_MESSAGE);

  return isLogged;
}

void confirmQuit() {
  if (showConfirmDialog(null, "Wanna quit then?", "Exit"
    , OK_CANCEL_OPTION) == OK_OPTION)  exit();
}

I have a string array of user ids, and I would like to add a new id to my arraylist, only when this value is not in the arraylist.

I do the following, but I don't get any results. Can someone recommend something?

String[] usersIDs = {
  "001", "002", "003"
};

ArrayList<String> identifiedUsers = new ArrayList<String>();

void keyReleased() {
  if (key == 'a') {
    for (int y=0; y<usersIDs.length; y++) {
      for (int i=0; i<identifiedUsers.size(); i++) {
        if (identifiedUsers.get(i).equals(usersIDs[y])) {
          println("a");
        } 
        else {
          println("b");
          identifiedUsers.add(usersIDs[0]);
        }
      }
    }
  }
}

port = new Serial(this, Serial.list()[0], 115200);

But is there a way to find automatically the right port? because on others computers i have always to change the number of port, like 1 or 2. Is there a command that can do that?

Thank you

Help!!! (Thanks in advance)

Also, write a function that receives the letter grade but figures the quality point for the AP class grade, and returns that value to the main program. Call the appropriate function defined above based on the user input of the class being AP or non-AP.

When it returns to the main program, - print the quality point - accumulate (sum) the quality points that are returned each time

When the loop is completed (counter>the number of grades to be entered) Calculate the GPA Print the GPA.

Help is very appreciated..

I am looking for someone who can help me with a problem. Its a beginner problem, but I am learning.

I want to make a menuscreen before the game will start. So first you need to put your name on it and then you ll begin. but my problem is, that I can't select on a textbox for putting a name.

// huidige naam die je typt String naamSpeler1=""; String naamSpeler2=""; String savedPlayer1; String savedPlayer2;

void setup() { size(444, 444); background(51); }

void draw () { background(111);

// Tekst boven fill(0, 255, 163); // groen text("SPELER 1", 20, 60); text("SPELER 2", 20, 80);

// naam op vulhokje noFill(); stroke(255); rect (10, 115, 170, 20); rect (10, 200, 170, 20); // text fill(255); // white text(naamSpeler1, 20, 129); text(naamSpeler2, 20, 216);

//start knop noFill(); rect(305,300,60,20); textSize(15); text("START",310,315);

} void keyPressed () {

if (key == ENTER) {//heeft gekozen voor naam if (!naamSpeler1.equals("")|| !naamSpeler2.equals("")) { savedPlayer1 = naamSpeler1; naamSpeler1 = ""; println (savedPlayer1); savedPlayer2 = naamSpeler2; naamSpeler2 = ""; println (savedPlayer2); } } //else { // record the keys (in the current word) naamSpeler1 = naamSpeler1 + (key+""); naamSpeler2 = naamSpeler2 + (key+"");

} //else } // func //

its in dutch but you ll understand what I mean, if you run it.

I am working on a project in which nine keys are in play. Each of the keys are connected to a specific sound, which is played when the key is pressed (using minim). But if I want the sketch to be able to track the previously pressed keys to identify if a specific code/password is pressed (keys pressed and released individually but in a specific order), how do I write this?

float currT, maxT, xpos, ypos, angle, v, g, deltaT;
String typing = "";
String saved = "";
PFont f;
void setup() {
  background(255);
  size(500,500);
  f = createFont("Arial",16,true);
    // Time starts at 0
    currT = 0;
    // Enter the angle below in degrees(angle)
    angle = 45;
    // Below converts angle from degrees to radians
    angle = (angle) * PI / 180;
    // Enter the velocity below (v)
    v = 75;
    // Gravity is equal to 9.8 m/s (g)
    g = 9.8;
    // How quickly it updates is deltaT (for faster draw times, use a higher number)
    deltaT = .01;
    // This is the max time the animation will run (when ypos is less than or equal to 0)
    maxT = 2*v*sin(angle) / g;
    // This is the position on the x-axis
    xpos = v * currT * cos(angle);
    // This is the position on the y-axis
    ypos = (v * currT * sin(angle)) - .5 * (g * (sq(currT)));
}
void draw() {
  int indent = 25;
  textFont(f);
  fill (0);
  text("Click in the applet and type an angle. \nHit return to save what you typed. ", indent, 40);
  text(typing,indent,90);
  text(saved,indent,130);
  noLoop();
}
void keyPressed() {
  if (key == '\n' ) {
    saved = typing;
    typing = "";
    angle = (Float.valueOf(saved));
    angle = (angle) * PI / 180;
    drawYes();
  } else {
    typing = typing + key;
  }
}
void drawYes() {
    // Advance currT
    currT = currT + deltaT;
    // Test if the simulation should be stopped (if the current time is greater than max time)
    if(currT > maxT) {
      noLoop();
    }
    // Calculate the new x & y position based on currT
    xpos = v * currT * cos(angle);
    ypos = (v * currT * sin(angle)) - 0.5 * (g * (sq(currT)));

    // Draw the current information in the window
    drawPosition();
    // Draw the ellipse in the window
    drawShot();
    loop();
}
void drawPosition() {
  fill(255);
  stroke(255);
  rect(0,0,500,30);
  stroke(0);
  fill(0);
      String text = "time:" + nf(currT, 4, 2) 
                  + " xpos:" + int(xpos) + " ypos:" + int(ypos);
      text(text, 10, 20);
}


void drawShot() {
    ellipse(xpos, 500-ypos, 1, 1);
}