Create a new version of paste:

//importing libraries
import cc.arduino.*;
import processing.serial.*;
import controlP5.*;
import ddf.minim.*;

//declare library entities
Minim minim;
AudioSample beep;
AudioPlayer player;
ControlP5 cp5;
Arduino arduino;

//creating a struct class
public class struct{
  boolean R;
  boolean G;
  boolean B;
  boolean all;
}

//declaring global variables and pins
struct correct = new struct();
boolean colorSet = false;
boolean timeOver = false;
float ValueR, ValueG, ValueB, InR, InG, InB;
int pins[] = {0,1,2};
int difficulity;
long startTime;
PFont font;

void setup(){ //setup function (runs only once)
  size(360,480); //window size
  background(0); //background color
  
  //declare font type and size
  font = createFont("Times",35);
  
  //set up library entities
  arduino = new Arduino(this, "COM5", 57600);
  minim = new Minim(this);
  cp5 = new ControlP5(this);
  beep = minim.loadSample("beep.mp3", 2048);
  player = minim.loadFile("moon.mp3", 2048);
  
  //set up the pins as Input pins
  for(int i =0; i<3;i++){
    arduino.pinMode(pins[i], arduino.INPUT);
  }
  
  // play the music
  player.play();
  player.loop();
  
  //select the font for the difficulity selection menu
  cp5.setControlFont(font);
  
  //create buttons for the difficulites
  cp5.addButton("Easy",0,20,20,320,45);
  cp5.addButton("Normal",1,20,90,320,45);
  cp5.addButton("Hard",2,20,160,320,45);
  cp5.addButton("Extreme",3,20,230,320,45);
}

void controlEvent(ControlEvent theEvent) { //a function that reads event occurance
  if(theEvent.isController()) { //checks to see if the even is a controller (a button)
    generate(); //generates the random color
    difficulity = (int)theEvent.controller().value(); //sets difficulity
    bhide(); //hides the buttons
    startTime = millis(); //intializes the start Time
  }
}

void generate(){ //genrate a random color using the build in random function
  ValueR = random(0,255);  
  ValueG = random(0,255); 
  ValueB = random(0,255); 
  colorSet = true;
}

void bhide(){ //hides all the buttons
  cp5.controller("Easy").hide();
  cp5.controller("Normal").hide();
  cp5.controller("Hard").hide();
  cp5.controller("Extreme").hide();
}

void draw(){ //main function (loops) when the main menu is loaded it wont do anything
  if(correct.all == true){ // if all the input is correct displays the correct values then a you win message
    fill(255);
    text((int)ValueR+"  "+(int)ValueG+"  "+(int)ValueB, 60 ,70);
    long currentTime = millis();
    if(currentTime-startTime>5000){
      background(255);
      fill(0);
      text("You Win!",100, 220);
    }
  }
  else if(timeOver == true){ //if the user fails to get the right values he/she will get a game over message
    background(255);
    text("Game Over",100, 220);
  }
  else if (colorSet == true){ //when the color is set (after a difficulity is selected)
    //read the values of the potentiometers and map them to the colors range (0-255)
    float In0 = arduino.analogRead(pins[0]);
    InR = map(In0, 0, 1023, 0, 255);
    float In1 = arduino.analogRead(pins[1]);
    InG = map(In1, 0, 1023, 0, 255);
    float In2 = arduino.analogRead(pins[2]);
    InB = map(In2, 0, 1023, 0, 255);
    
    color cur = color(InR,InG,InB); //set the current color to a color data type to be used to display it in hex
    
    background(255); //draw the background
    fill(ValueR, ValueG, ValueB);
    rect(10,10,340,100); //draws the rectangle with color that the user has to guess
    fill(InR,InG,InB);
    rect(10,120,340,200); //draws a rectangle with the color thet the user inputs through the potentiometers
    fill(255);
    text("#"+hex(cur,6),110,230); //gives the hex value of the user inputed color in hex
    fill(InR,0,0);
    rect(10,330,110,100); //draw the red rectanlge for the user input
    fill(255);
    text((int)InR,50,390);//Write the value of the user input for red 
    fill(0,InG,0);
    rect(125,330,110,100);//draw the Green rectanlge for the user input
    fill(255);
    text((int)InG,160,390);//Write the value of the user input for green 
    fill(0,0,InB);
    rect(240,330,110,100);//draw the blue rectanlge for the user input
    fill(255);
    text((int)InB,280,390);//Write the value of the user input for blue 
    fill(0);
    switch(difficulity){ //a switch statement to switch between each difficulity
      case(0):
        text("Easy",145,470); //displays easy instead of timer because the easy mode has no time limit
        check(20); //checks the values with a tolarence of 40 (20 higher and 20 less than the right value)
        break;
      case(1):
        text(counter(90),165,470);//displays a countdown from 90
        check(15); //checks the values with tolarence of 30
        break;
      case(2):
        text(counter(60),165,470);
        check(10);
        break;
      case(3):
        text(counter(30),165,470);
        check(5);
        break;
    }
  }
}

void check(int n){ //compares the input values with the random value
  if(abs(ValueR-InR) <= n){//if the values are in range sets the color to correctness to true and plays a tone
    if(correct.R == false){
      correct.R = true;
      beep.trigger();
    }
  }
  else{ //otherwise the color is not correct
    correct.R = false;
  }
  if(abs(ValueG-InG) <= n){
    if(correct.G == false){
    correct.G = true;
    beep.trigger();
    }
  }
  else{
    correct.G = false;
  }
  if(abs(ValueB-InB) <= n){
    if(correct.B == false){
    correct.B = true;
    beep.trigger();
    }
  }
  else{
    correct.B = false;
  }
  if(correct.R == true && correct.G == true && correct.B == true){//when all the colors are correct set the value of all to true and reset the timer
    correct.all = true;
    startTime = millis();
  }
}


int counter(int secs){ //a timer function
  long counter;
  long currentTime = millis();
  secs = secs * 1000;
  counter = (startTime+secs) - currentTime;
    if(counter < 0){
      timeOver = true;
      return 0;
    }
    else{return (int)counter/1000;}
}

void stop() //terminates the sound when the processing app is closed while pressing a key
{ //used to prevent the problem of having the sound on after the app exits
  minim.stop();
  super.stop();
}