/*
  program arduino simulasi proteus
  project: arduino 7 segment sore board
  board: arduino uno/nano, 74HC595 shift register, 7 segment CA 
*/

#include "Wire.h"

#define DATA 11
#define CLK 12
#define LATCH 8

#define S1_UP 5
#define S1_DOWN 6
#define S2_UP 7
#define S2_DOWN 4 
#define S_SHIFT 9
#define S_RESET 10
#define LED 13

//konfigurasi segment dengan hex / biner 8 bit = https://www.electrical4u.com/images/march16/1460385570.PNG
byte segment[10]= {0x3F, 0x06, 0x5B, 0x4F, 0x66, 0x6D, 0x7D, 0x7, 0x7F, 0x6F};

byte ani_char[8]= {0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x01,0x40};

int skor1_d1=0; //satuan
int skor1_d2=0; //puluhan
int skor2_d1=0; //satuan
int skor2_d2=0; //puluhan
int stat_blink=0;

void setup(){
  pinMode(S1_UP, INPUT);
  pinMode(S1_DOWN, INPUT);
  pinMode(S2_UP, INPUT);
  pinMode(S2_DOWN, INPUT);
  pinMode(S_SHIFT, INPUT);
  pinMode(S_RESET, INPUT);

  pinMode(LATCH, OUTPUT);
  pinMode(CLK, OUTPUT);
  pinMode(DATA, OUTPUT);
  
  pinMode(LED, OUTPUT);
  digitalWrite(LED, LOW);
  
  // opening animation
  int i = 0;
  while(i<8){
    i++;
    digitalWrite(LATCH, LOW);
    shiftOut(DATA, CLK, MSBFIRST, ~ani_char[i]); 
    shiftOut(DATA, CLK, MSBFIRST, ~ani_char[i]); 
    shiftOut(DATA, CLK, MSBFIRST, ~ani_char[i]); 
    shiftOut(DATA, CLK, MSBFIRST, ~ani_char[i]);
    digitalWrite(LATCH, HIGH);
    delay(200);
  }
  digitalWrite(LED, HIGH);delay(200);digitalWrite(LED, LOW);delay(200);
  digitalWrite(LED, HIGH);delay(200);digitalWrite(LED, LOW);delay(200);
  digitalWrite(LED, HIGH);delay(200);digitalWrite(LED, LOW);delay(200);
  digitalWrite(LED, HIGH);
}

void loop(){
  //display 1 counter UP
  if(digitalRead(S1_UP)== HIGH){
    skor1_d1++;
    if(skor1_d1>9){
      skor1_d1 = 0;
      skor1_d2++;
      
      if(skor1_d2>9){
        skor1_d2 = 0;        
       }
     }
  }
  
  //display 1 counter DOWN
  else if(digitalRead(S1_DOWN)== HIGH){
    skor1_d1--;
    if(skor1_d1<0){
      skor1_d1 = 9;
      skor1_d2--;
      
      if(skor1_d2<0){
        skor1_d2 = 9;        
       }
     }
  }

  //display 2 counter UP
  else if(digitalRead(S2_UP)== HIGH){
    skor2_d1++;
    if(skor2_d1>9){
      skor2_d1 = 0;
      skor2_d2++;
      
      if(skor2_d2>9){
        skor2_d2 = 0;        
       }
     }
  }

  //display 2 counter UP
  else if(digitalRead(S2_DOWN)== HIGH){
    skor2_d1--;
    if(skor2_d1<0){
      skor2_d1 = 9;
      skor2_d2--;
      
      if(skor2_d2<0){
        skor2_d2 = 9;        
       }
     }
  }
  
  else if(digitalRead(S_SHIFT)== HIGH){
    stat_blink =1;
    int tmp_skor1, tmp_skor2;
    tmp_skor1 =  skor1_d1;
    tmp_skor2 =  skor1_d2;
    skor1_d1 = skor2_d1;
    skor1_d2 = skor2_d2;
    skor2_d1 = tmp_skor1;
    skor2_d2 = tmp_skor2;
  }
  
  else if(digitalRead(S_RESET)== HIGH){
    stat_blink =1;
    skor1_d1 = 0;
    skor1_d2 = 0;
    skor2_d1 = 0;
    skor2_d2 = 0;
  }

  digitalWrite(LATCH, LOW);
  shiftOut(DATA, CLK, MSBFIRST, ~segment[skor1_d1]); // display 1 digit satuan
  shiftOut(DATA, CLK, MSBFIRST, ~segment[skor1_d2]); // display 1 digit puluhan
  shiftOut(DATA, CLK, MSBFIRST, ~segment[skor2_d1]); // display 2 digit satuan
  shiftOut(DATA, CLK, MSBFIRST, ~segment[skor2_d2]); // display 2 digit puluhan
  digitalWrite(LATCH, HIGH);

  if(stat_blink == 1){
    led_blink(2); //led blink 2 kali
    stat_blink =0;
  }
  
  delay(50); //delay dalam simulasi-sesuaikan apabila terlalu tombol responsive
 
}

void led_blink(int blink_times){
  int x = 0;
 while (x <= blink_times){
    x++;
   digitalWrite(LED, HIGH);delay(200);digitalWrite(LED, LOW);delay(200);
 }
  digitalWrite(LED, HIGH);
}