#include <IRremote.h>
#include <LiquidCrystal.h>
#include <LedControl.h>

#define LED_CS 12
#define LED_DIN 13
#define LED_CLK 38

#define JOY_VERT A0
#define JOY_HORZ A1
#define JOY_SEL 32

IRrecv receiver(30);
LiquidCrystal lcd(7, 6, 22, 24, 26, 28);
LedControl LED_Disp(13, 38, 12, 1);

int Y;
int X;

bool RemoteOrJoystick = true; //true = Remote, false = Joystick
bool joyHeld;

void setup() {
  lcd.begin(16,2);
  lcd.print("State: ");
  lcd.setCursor(0, 7);
  lcd.print("Remote");
  lcd.setCursor(0, 7);

  LED_Disp.clearDisplay(0);
  receiver.enableIRIn();

  pinMode(JOY_VERT, INPUT);
  pinMode(JOY_HORZ, INPUT);
  pinMode(JOY_SEL, INPUT_PULLUP);

  Y = 3;
  X = 3;
}

void loop() {
  LED_Disp.setLed(0,X,Y,true);
  LED_Disp.setLed(0,X + 1,Y,true);
  LED_Disp.setLed(0,X,Y + 1,true);
  LED_Disp.setLed(0,X + 1,Y + 1,true);

  if(digitalRead(JOY_SEL) == HIGH){
    joyHeld = false;
  }

  if (digitalRead(JOY_SEL) == LOW && joyHeld != true) {
    if(RemoteOrJoystick == false){
      RemoteOrJoystick = true;
      lcd.print("        ");
      lcd.setCursor(0, 7);
      lcd.print("Remote");  
      lcd.setCursor(0, 7);
    }
    else{
      RemoteOrJoystick = false;
      lcd.print("        ");
      lcd.setCursor(0, 7);
      lcd.print("Joystick");
      lcd.setCursor(0, 7);
    }
    joyHeld = true;
  }

  if (receiver.decode()){
    if(receiver.decodedIRData.command == 162){
      if(RemoteOrJoystick == false){
        RemoteOrJoystick = true;
        lcd.print("        ");
        lcd.setCursor(0, 7);
        lcd.print("Remote");  
        lcd.setCursor(0, 7);
      }
      else{
        RemoteOrJoystick = false;
        lcd.print("        ");
        lcd.setCursor(0, 7);
        lcd.print("Joystick");
        lcd.setCursor(0, 7);
      }
      
    }
    
    if(RemoteOrJoystick == true){
      if (receiver.decode()){
        switch(receiver.decodedIRData.command){
          case 2:
            LED_Disp.clearDisplay(0);
            if (X > -1){X-=1;}
            break;
          case 224:
            LED_Disp.clearDisplay(0);
            if (Y < 7){Y+=1;}
            break;
          case 144:
            LED_Disp.clearDisplay(0);
            if (Y > -1){Y-=1;}
            break;
          case 152:
            LED_Disp.clearDisplay(0);
            if (X < 7){X+=1;}
            break;
        }
        
      }
    }
    receiver.resume();
  }

  if (RemoteOrJoystick == false){
    int horz = analogRead(JOY_HORZ);
    int vert = analogRead(JOY_VERT);
    X = map(vert, 0, 1023, 7, -1);
    Y = map(horz, 0, 1023, -1, 7);
    LED_Disp.clearDisplay(0);
  }
  
}