#include <LiquidCrystal.h>
#include <LedControl.h>
#include <IRremote.h>
#define DIN 9 
#define CS 10 
#define CLK 8 
#define Yaxis A1 
#define Xaxis A2 
#define SEL 13 
#define DOUT 7
LiquidCrystal lcd(12,11,5,4,3,2);
LedControl lc(DIN, CLK, CS, 1);
IRrecv rec(DOUT);
int mode = 0;
void setup() {
  lcd.begin(16,2);
  lcd.clear();
  lcd.print("Mode: Joystick");
  lc.shutdown(0, false);
  lc.clearDisplay(0);
  lc.setIntensity(0, 8);
  pinMode(Yaxis, INPUT);
  pinMode(Xaxis, INPUT);
  pinMode(SEL, INPUT_PULLUP);
  rec.enableIRIn();
}
void loop() {
  if(!mode){
    joystickMode();
  }
  else if(mode){
    irMode();
  }
  delay(100);
}
void drawSquare(int row, int col){
  lc.clearDisplay(0);
  lc.setLed(0, row, col, true);
  lc.setLed(0, row, col+1, true);
  lc.setLed(0, row+1, col, true);
  lc.setLed(0, row+1, col+1, true);
}
void joystickMode(){
  int ir = 0;
  while(1){
    ir = 0;
    if(rec.decode()){
      ir = rec.decodedIRData.command;
      rec.resume();
    }
    if(!digitalRead(SEL) || ir == 162){
      break;
    }
    int x = map(analogRead(Xaxis), 0, 1023, -1, 7);
    int y = map(analogRead(Yaxis), 0, 1023, 7, -1);
    drawSquare(x, y);
    delay(100);
  }
  lcd.clear();
  lcd.print("Mode: Remote");
  mode = 1;
}
void irMode(){
  int ir = 0;
  int row = 3;
  int col = 3;
  while(1){
    ir = 0;
    if(rec.decode()){
      ir = rec.decodedIRData.command;
      rec.resume();
    }
    if(!digitalRead(SEL) || ir == 162){
      break;
    } 
    if(ir == 2 && row > -1){
      row--;
    }
    else if(ir == 152 && row < 7){
      row++;
    }
    else if(ir == 224 && col < 7){
      col++;
    }   
    else if(ir == 144 && col > -1){
      col--;
    }
    drawSquare(row, col);
    delay(100);
  }
  lcd.clear();
  lcd.print("Mode: Joystick");
  mode = 0;
}