#include <Servo.h>
#define segA 2
#define segB 3
#define segC 4
#define segD 5
#define segE 6
#define segF 7  
#define segG 8
#define buttonINC 9
#define buttonDEC 10
int stateINC,stateDEC;
int counter;
Servo ser;
void setup() {
  for(int i=2;i<=8;i++){
    pinMode(i, OUTPUT);
  }
  pinMode(buttonINC, INPUT);
  pinMode(buttonDEC, INPUT);
  Serial.begin(9600);
  ser.attach(11);

}
void loop() {
 stateINC=digitalRead(buttonINC);
stateDEC=digitalRead(buttonDEC);
if(stateINC==1 && counter<9){
  counter++;
}
if(stateDEC==1 && counter>0){
  counter--;
}
Serial.println(counter);
delay(1000);
Serial.println(stateDEC);
delay(1000);
Serial.println(stateINC);
delay(1000);
switch(counter){
  case 0:zero();
  break;
  case 1:one();
  break;
  case 2:two();
  break;
  case 3:three();
  break;
  case 4:four();
  break;
  case 5:five();
  break;
  case 6:six();
  break;
  case 7:seven();
  break;
  case 8:eight();
  break;
  case 9:nine();
  break;
  default :displayOff();

}
}
void zero(){
  ser.write(0);
  for(int i=2;i<=8;i++){
    if(i==8){
      digitalWrite(i, LOW);
    }
    else{
      digitalWrite(i, HIGH);
    }
  }
}
void one(){
   ser.write(10);
  for(int i=2;i<=8;i++){
    if(i==3|| i==4){
      digitalWrite(i, HIGH);
    }
    else{
      digitalWrite(i, LOW);
    }
  }
}
void two(){
  ser.write(20);
  for(int i=2;i<=8;i++){
    if(i==4 || i==7){
      digitalWrite(i, LOW);
    }
    else{
      digitalWrite(i, HIGH);
    }
  }
}
void three(){
  ser.write(30);
  for(int i=2;i<=8;i++){
    if(i==6 || i==7){
      digitalWrite(i, LOW);
    }
    else{
      digitalWrite(i, HIGH);
    }
  }
}
void four(){
  ser.write(40);
  for(int i=2;i<=8;i++){
    if(i==2 || i==5 || i==6){
      digitalWrite(i, LOW);
    }
    else{
      digitalWrite(i, HIGH);
    }
  }
}
void five(){
  ser.write(50);
  for(int i=2;i<=8;i++){
    if(i==3 || i==6){
      digitalWrite(i, LOW);
    }
    else{
      digitalWrite(i, HIGH);
    }
  }

}
void six(){
  ser.write(60);
  for(int i=2;i<=8;i++){
    if(i==3){
      digitalWrite(i, LOW);
    }
    else{
      digitalWrite(i, HIGH);
    }
  }
}
void seven(){
  ser.write(70);
  for(int i=2;i<=4;i++){
    digitalWrite(i, HIGH);
  }
  for(int x=5;x<=8;x++){
    digitalWrite(x, LOW);
  }
}
void eight(){
  ser.write(80);
  for (int i=2;i<=8;i++){
digitalWrite(i, HIGH);
  }
}
void nine(){
  ser.write(90);
  for (int i=2;i<=8;i++){
    if (i==6){
      digitalWrite(i, LOW);
    }
    else {
      digitalWrite(i, HIGH);
    }
  }
}
void displayOff(){
  ser.write(0);
   for (int i=2;i<=8;i++){
digitalWrite(i, LOW);
}
}