/*
 * Fab academy 2020
 * Author: Anssi Heikkinen
 * This is a program for ButtonBox which is documented on the http://fabacademy.org/2020/labs/oulu/students/anssi-heikkinen/finalproject.html
 * 
 */

// adding libraries
#include <Joystick.h>
#include <LiquidCrystal.h>

// activating joystik library
Joystick_ Joystick;

// setting up lcd + a button for controlling it
LiquidCrystal lcd(10,6,9,12,8,4);
const int lcdButton = 11;
int lcdButtonState = 0;

/* not currently using this
const int resetButton;
*/

// setting up pins for buttons and potentiometers
const int buttonPin1 = 0;
const int buttonPin2 = 1;
const int buttonPin3 = 2;
const int buttonPin4 = 3;
const int buttonPin5 = 13;
const int buttonPin6 = 5;

// const int potPin1 = A0;
const int potPin2 = A1;
const int potPin3 = A2;

// Setting up values for potentiometers
int value1 = 0;
int value2 = 0;
int value3 = 0;
int prevValue1 = 0;
int prevValue2 = 0;
int prevValue3 = 0;

void setup() {
  // opening serial for testing purposes, joystick for pushbuttons and potentiometers
  Serial.begin(9600);
  Joystick.begin();

  lcd.begin(16,2);

  // setting lcdButton as input, pushbuttons don't have to be set up this way because of joystick
  pinMode(lcdButton, INPUT);

}

void loop() {

  // first setting up buttons to read if it's pressed. If pressed it activates the joystick.pressButton and it releases it after it has been pressed. All buttons are on releaseButton-state when they are not pressed. 
  int button1 = digitalRead(buttonPin1);
  int button2 = digitalRead(buttonPin2);
  int button3 = digitalRead(buttonPin3);
  int button4 = digitalRead(buttonPin4);
  int button5 = digitalRead(buttonPin5);
  int button6 = digitalRead(buttonPin6);

  if (button1 == 0){
   Joystick.pressButton(buttonPin1);
   Serial.println("1"); 
  }
  else {
    Joystick.releaseButton(buttonPin1);
  }
  if (button2 == 0){
   Joystick.pressButton(buttonPin2);
   Serial.println("2");
  }
  else {
    Joystick.releaseButton(buttonPin2);
  }
  if (button3 == 0){
   Joystick.pressButton(buttonPin3);
   Serial.println("3"); 
  }
  else {
    Joystick.releaseButton(buttonPin3);
  }
  if (button4 == 0){
   Joystick.pressButton(buttonPin4);
   Serial.println("4"); 
  }
  else {
    Joystick.releaseButton(buttonPin4);
  }
  if (button5 == 0){
   Joystick.pressButton(buttonPin5);
   Serial.println("5");
  }
  else {
    Joystick.releaseButton(buttonPin5);
  }
  if (button6 == 0){
   Joystick.pressButton(buttonPin6);
   Serial.println("6");
  }
  else {
    Joystick.releaseButton(buttonPin6);
  }

  // tested something new with lcd which was in this case scrolling text from right to left.
  lcdButtonState = digitalRead(lcdButton);
  
  if (lcdButtonState == HIGH) {
    lcd.setCursor(0,0);
    lcd.print("Fab academy 2020");
  }
  else {
    lcd.setCursor(0,0);
    lcd.println("Final project - Buttonbox");
    for (int positionCounter = 0; positionCounter < 9; positionCounter++){
      lcd.scrollDisplayLeft();
      delay(500);
      if(positionCounter == 8){
        lcd.clear();
      }
      else{
      }
    }
  }

  // lastly potentiometers. These will work as buttons, but will trigger when rotating the potentiometer and the value is 50 lower or higher than the previous value which activated a press
  value1 = analogRead(potPin1);
  if ((value1 <= prevValue1 - 50) || (value1 >= prevValue1 + 50)){
    prevValue1 = value1;
    Joystick.pressButton(potPin1);
   }
   else {
   Joystick.releaseButton(potPin1);
    }
 
    value2 = analogRead(potPin2);
  if ((value2 <= prevValue2 - 50) || (value2 >= prevValue2 + 50)){
   prevValue2 = value2;
   Joystick.pressButton(potPin2);
  }
  else {
    Joystick.releaseButton(potPin2);
  }
    value3 = analogRead(potPin3);
  if ((value3 <= prevValue3 - 50) || (value3 >= prevValue3 + 50)){
    prevValue3 = value3;
    Joystick.pressButton(potPin3);
   }
   else {
    Joystick.releaseButton(potPin3);
    }       
 }