Hello guys,

I'm working on a projekt and have a problem. I'm working with the Arduino board and Processing. I'm trying to make a SIMON Game: you have 4 leds and 4 switches. In the first round one led blinks if you push the right switch the next round starts and 2 leds blink and so on, if you fail you start from the beginning.
On the processing side i have a programm which starts the webcam from your computer and split the screen into 4 windows/screens (so you see yourself four times).
Okey, know I want that these screens change color when a led blinks (when the red led blinks one of the 4 windows gets colored red and so on) How can I make this? I have to send some variables from arduino to processing but I don't know how i should do this. Hope you understand what I mean and can help me.

PS: Sorry for my bad english. I'm not a native speaker.

Here is the arduino code:

1. int switch1 = 5; //schalter Pins
   int switch2 = 4;
   int switch3 = 3;
   int switch4 = 2;
   int led1 = 12; //LED Pins
   int led2 = 10;
   int led3 = 9;
   int led4 = 8;
   int turn = 0;
   int input1 = LOW;
   int input2 = LOW;
   int input3 = LOW;
   int input4 = LOW;
   
   int randomArray[100];
   int inputArray[100];
   
   void setup() {
   
    Serial.begin(9600);
   
    pinMode(led1, OUTPUT);
    pinMode(led2, OUTPUT);
    pinMode(led3, OUTPUT);
    pinMode(led4, OUTPUT);
    pinMode(switch1, INPUT);
    pinMode(switch2, INPUT);
    pinMode(switch3, INPUT);
    pinMode(switch4, INPUT);
    randomSeed(analogRead(0)); //Added to generate "more randomness" with the randomArray for the output function
   
   for (int y=0; y<=99; y++){ //For statement to loop through the output and input functions
     output();
     input();
     }
   }
    
   void output() { //function for generating the array to be matched by the player
     
     for (int y=turn; y <= turn; y++){ //Limited by the turn variable
      Serial.println(""); //Some serial output to follow along
      Serial.print("Turn: ");
      Serial.print(y);
      Serial.println("");
      randomArray[y] = random(1, 5); //Assigning a random number (1-4) to the randomArray[y], y being the turn count
      for (int x=0; x <= turn; x++){
   
        Serial.print(randomArray[x]);
   
        if (randomArray[x] == 1) {  //if statements to display the stored values in the array
          digitalWrite(led1, HIGH);
          delay(500);
          digitalWrite(led1, LOW);
          delay(100);
        }
   
        if (randomArray[x] == 2) {
          digitalWrite(led2, HIGH);
          delay(500);
          digitalWrite(led2, LOW);
          delay(100);
        }
   
        if (randomArray[x] == 3) {
          digitalWrite(led3, HIGH);
          delay(500);
          digitalWrite(led3, LOW);
          delay(100);
        }
   
        if (randomArray[x] == 4) {
          digitalWrite(led4, HIGH);
          delay(500);
          digitalWrite(led4, LOW);
          delay(100);
        }
       }
      }
     }
    
   void input() { //Function for allowing user input and checking input against the generated array
   
    for (int x=0; x <= turn;){ //Statement controlled by turn count
      input1 = digitalRead(switch1);
      input2 = digitalRead(switch2);
      input3 = digitalRead(switch3);
      input4 = digitalRead(switch4);
   
      if (input1 == HIGH){ //Checking for button push
        digitalWrite(led1, HIGH);
        delay(200);
        digitalWrite(led1, LOW);
        inputArray[x] = 1;
        delay(50);
        Serial.print(" ");
        Serial.print(1);
        if (inputArray[x] != randomArray[x]) { //Checks value input by user and checks it against
          fail();                              //the value in the same spot on the generated array
        }                                      //The fail function is called if it does not match
        x++;
      }
   
      if (input2 == HIGH){
        digitalWrite(led2, HIGH);
        delay(200);
        digitalWrite(led2, LOW);
        inputArray[x] = 2;
        delay(50);
        Serial.print(" ");
        Serial.print(2);
        if (inputArray[x] != randomArray[x]) {
          fail();
        }
        x++;
   
      }
   
      if (input3 == HIGH){
        digitalWrite(led3, HIGH);
        delay(200);
        digitalWrite(led3, LOW);
        inputArray[x] = 3;
        delay(50);
        Serial.print(" ");
        Serial.print(3);
        if (inputArray[x] != randomArray[x]) {
          fail();
        }
        x++;
   
      }
   
      if (input4 == HIGH){
   
        digitalWrite(led4, HIGH);
        delay(200);
        digitalWrite(led4, LOW);
        inputArray[x] = 4;
        delay(50);
        Serial.print(" ");
        Serial.print(4);
        if (inputArray[x] != randomArray[x]) {
          fail();
        }
        x++;
      }
     }
    delay(500);
    turn++; //Increments the turn count, also the last action before starting the output function over again
   }
   
   void fail() { //Function used if the player fails to match the sequence
    
    for (int y=0; y<=5; y++){ //Flashes lights for failure
     digitalWrite(led1, HIGH);
     digitalWrite(led2, HIGH);
     digitalWrite(led3, HIGH);
     digitalWrite(led4, HIGH);
     delay(200);
     digitalWrite(led1, LOW);
     digitalWrite(led2, LOW);
     digitalWrite(led3, LOW);
     digitalWrite(led4, LOW);
     delay(200);
    }
    delay(500);
    turn = -1; //Resets turn value so the game starts over without need for a reset button
   }
   
   void loop() { //Unused void loop(), though for some reason it doesn't compile without this /shrug
   }

Here is the processing Code:

1. import processing.serial.*;
   import JMyron.*;
   
   Serial port;
   JMyron m;//a camera object
   
2. //the four Images
   PImage upperImage;
   PImage lowerImage;
   PImage urightImage; //upper right Image
   PImage lrightImage; //lower right Image
   
   void setup(){
     size(800,800);
     port = new Serial (this, "COM12", 9600);
    
     m = new JMyron();//make a new instance of the object
     m.start(width/2,height/2);//start a capture at 320x240
     upperImage = new PImage(width/2,height/2);
     urightImage = new PImage(width/2,height/2);
     lrightImage = new PImage (width/2,height/2);
     lowerImage = new PImage(width/2,height/2);
     }
   
   void draw(){
   
     m.update();//aktuall image into the jmyron objekt
    
     upperImage.loadPixels();
     upperImage.pixels = m.image();
     upperImage.updatePixels();
    
     image (upperImage,0,0);
     tint(255,0,0);
      
     urightImage.loadPixels();
     urightImage.pixels = m.image();
     urightImage.updatePixels();
    
     image (urightImage,400,0);
     tint(255,255,0);
    
     lowerImage.loadPixels();
     lowerImage.pixels = m.image();
     lowerImage.updatePixels();
    
     image (lowerImage,0,400);
     tint(0,0,255);
    
     lrightImage.loadPixels();
     lrightImage.pixels = m.image();
     lrightImage.updatePixels();
    
     image (lrightImage,400,400);
     tint(0,255,0);
   
     }