 const int SIMON_2 = 4;
 const int SIMON_3 = 3;
 const int SIMON_4 = 2;
+const int QTY = 7;
+const int LEDS[QTY] = {RED_1, RED_2, RED_3, SIMON_1, SIMON_2, SIMON_3, SIMON_4};
 
 // Define switch pin positions.
 const int TILT = 10;
 const int BUTTONS = A1;
+
+// Define game settings speed.
+const int LIGHT_DELAY = 700;
+volatile boolean gameStart = false;
 
 
 /**

void setup() {
    // Print debug results to the serial monitor.
    if (DEBUG) Serial.begin(9600);
}



        Serial.print(analogRead(BUTTONS));
        Serial.print(", ");
        Serial.println(simonLed);
    }

    // Cycle LEDs until the player starts a game.
    while (!gameStart) {
        playLightShow();
    }
}

