Hello, I am working on a project for school. I am working with Processing 3 with Arduino uno (both program and board). I am writing a GUI on Processing 3, so I can control Arduino. On my GUI, I have a box for inputs and a button called “move” (which currently works if you press the enter key, and I want to make it so that I can press the button with my mouse too). My problem is that I have a delay and a prompt. When a user inputs a degree of say 25, the prompt should appear, have a delay of 5 seconds, and then disappear.
My current problem is that when I enter a number, the delay happens first, then the prompt never shows because the computer reads it as “show the prompt and remove the prompt” back to back, therefore never showing the prompt. I aim for the prompt to show, delay it for 5 seconds, then remove the prompt. I can’t seem to get this to work in the way I want it to. I’ve tried delay(), wait(), sleep(), and nested if statements to perhaps get it to work. I am a beginner, so I am not that well experienced but I am trying my best. (So please be patient with me). I have also searched the internet for hours and couldn’t find a good solution to my problem.
I would appreciate it if someone could assist me, possibly??
Specifically, I am trying to address the problem in my “keypressed” function, in the last 3 if-statements at the end.
**also, if you could tell me how to make my button be able to be pressed with my mouse, I’d appreciate that. But it’s not needed, if you don’t have the time. 
import controlP5.*;
import processing.serial.*;
import static javax.swing.JOptionPane.*;
import java.util.concurrent.TimeUnit;
Serial port;
ControlP5 cp5;
String d;
int angle, WGtracker = 0, Mover=0,timedelay=0,time,starttime,readback;
String url1;
boolean IBE = false, OB = false, indicator = false;
////////////////////////////////////////////
public static void wait(int ms)
{
try
{
Thread.sleep(ms);
}
catch(InterruptedException ex)
{
Thread.currentThread().interrupt();
}
}
void setup(){
size(1000,600);
port = new Serial(this, "COM3", 9600);
cp5 = new ControlP5(this);
cp5.addTextfield("Angle").setPosition(130,80).setSize(60,40);
cp5.addButton("Move").setPosition(230,80).setSize(60,40);
}
void draw(){
background(255,255,255);
fill(0,0,0);
textSize(50);
text("A.D.A.S Control GUI",250,50);
textSize(20);
if(indicator == false){
text("Enter angle\n"+"in box",10,90);
text("Current Position: " + (WGtracker) + " degrees",400,300);
}
if(IBE == true){
text("ERROR! Input Angle must be between 0 and 100",400,400);
}
if(OB == true){
text("The A.D.A.S cannot exceed 0 or 100 degrees",400,400);
}
if (indicator == true){
text("Please wait while the system moves",10,90);
cp5.addTextfield("Angle").setPosition(130,80).setSize(60,40).hide();
cp5.addButton("Move").setPosition(230,80).setSize(60,40).hide();
}
if(port.available() > 0){
d = port.readStringUntil('\n');
readback = int(d);
}
}
void keyPressed(){
switch(key){
case '\n':
url1 = cp5.get(Textfield.class,"Angle").getText();
angle = parseInt(url1);
//ERROR CODE TO CHECK IF USER INPUT IS BETWEEN 1 AND 100 DEGREES
if(angle > 100 || angle < 0){
IBE = true;
return;
}
// RESETS ERROR ONCE CORRECT INPUT IS ENTERED
IBE = false;
OB = false;
if(angle > WGtracker){
//port.write(Float.toString(101));
Mover = angle - WGtracker;
//port.write(Float.toString(Mover));
if(Mover == angle - WGtracker) {
indicator = true;
}
WGtracker = angle;
}
if(angle < WGtracker){
//port.write(Float.toString(102));
Mover = WGtracker - angle;
//port.write(Float.toString(Mover));
//wait(5000);
WGtracker = angle;
}
if(indicator == true) {
delay(5000);
indicator = false;
}
}
}