// including servo library
#include <Servo.h>
// creating variable for servo motor
Servo servoOne; 

// variable that will keep the millis value
// temporary variable that will occasionally be given the millis value
unsigned long timer1 = 0;
unsigned long timer2 = 0;
unsigned long timer3 = 0;
unsigned long timer4 = 0;
unsigned long timer5 = 0;
unsigned long timer6 = 0;
unsigned long timer7 = 0;
unsigned long timer9 = 0;
unsigned long timer10 = 0;
void setup() {
  // pin setup for the 4 pushbuttons
  pinMode(2, INPUT); // button A (blue button)
  pinMode(7, INPUT); // button D (red button)
  pinMode(8, INPUT); // button C (yellow button)
  pinMode(12, INPUT); // button B (green button)

  // pin setup for the 4 LEDs
  pinMode(5, OUTPUT); // amber LED
  pinMode(6, OUTPUT); // blue LED
  pinMode(9, OUTPUT); // red LED
  pinMode(10, OUTPUT); // green LED

  // setup for the serial monitor
  Serial.begin(9600);

  // pin setup for the servo motor
  servoOne.attach (11);
}

void loop() 
{

  // begin by turning all of the LEDs off
  digitalWrite(5, HIGH);
  digitalWrite(6, HIGH);
  digitalWrite(9, HIGH);
  digitalWrite(10, HIGH);

  const int buttonA = 7;
  const int buttonB = 8;
  const int buttonC = 12;
  const int buttonD = 2;

 
  
  while(digitalRead(buttonB))
  {
    servoOne.write(10);
    int i;
    for(i=0;i<110;i++);
    {
      if(millis()- timer5>= 8)
      {
      servoOne.write(10 + i);
      timer5 = millis();
      }
    }
  }

    while(digitalRead(buttonD))
    {
      int randomNumber = random(1, 3);
      int chosenState;
      
      //Switch case is used so that numbers 1-4 is assigned to respective pin numbers attached to LEDs
        switch(randomNumber)
        {
          int i = 0;

          case 1:
          servoOne.write(30);
          for(i=0;i<2;i++)
            {
              if (millis() - timer6 > 2000) 
                {
                  digitalWrite(10, LOW);
                  timer6 = millis();   
                }
                else if (millis() - timer6 > 1000)
                {
                  digitalWrite(10, HIGH);
                }
            }
          break;

        
          case 2:
          servoOne.write(90);
          for(i=0;i<3;i++)
            {
              if (millis() - timer9 > 3000) 
                {
                  digitalWrite(5, LOW);   
                  timer1 = millis(); 
                  i++;       
                }
                else if (millis() - timer9 > 1000)
                {
                  digitalWrite(5, HIGH);
                }

                if (millis() - timer10 > 3000) 
                {
                  digitalWrite(10, HIGH);
                  timer2 = millis();   
                }
                else if (millis() - timer10 > 1000) 
                {
                  digitalWrite(10, LOW);
                } 
            }
          break;
        
          case 3:
          servoOne.write(150);
          for(i=0;i>4;i++)
            {
              if (millis() - timer7 > 2000) 
                {
                  digitalWrite(5, LOW);
                  timer7 = millis();   
                }
              else if (millis() - timer7 > 1000)
                {
                  digitalWrite(5, HIGH);
                }
            }

          break;
    }
  }

  
}