Simulacrum w/ Treadmill Forwards

//A0 is Right Rotation.
//A1 is Left Rotation.
//A2 is Right Pressure.
//A3 is Left Pressure.
// 2 is Encoder Pin 1.
//~3 is Encoder Pin 2.

int cur = 0;
int dur = 0;

boolean LeftFoot = false;
boolean RightFoot = false;

unsigned long walked = 0;
unsigned long accum = 0;
//unsigned long walked1 = 0;

int encoderPin1 = 2;
int encoderPin2 = 3;

volatile int lastEncoded = 0;
volatile long encoderValue = 0;

long lastencoderValue = 0;

int lastMSB = 0;
int lastLSB = 0;
void setup() {
  pinMode(encoderPin1, INPUT);
  pinMode(encoderPin2, INPUT);

  digitalWrite(encoderPin1, HIGH); //turn pullup resistor on
  digitalWrite(encoderPin2, HIGH); //turn pullup resistor on

  //call updateEncoder() when any high/low changed seen
  //on interrupt 0 (pin 2), or interrupt 1 (pin 3)
  attachInterrupt(0, updateEncoder, CHANGE);
  attachInterrupt(1, updateEncoder, CHANGE);

  cur = analogRead(A0);
  dur = analogRead(A1);
  Mouse.begin();
  Keyboard.begin();
}

void loop() {
  if((millis()>walked+100)&&(walked!=0)){
    Keyboard.releaseAll();
    walked = 0;
  }
  //if((millis()>walked1+50)&&(walked1!=0)){
  //  Keyboard.release('s');
  //  walked1 = 0;
  //}
  if((!LeftFoot)&&(analogRead(A3)>=900)){
    LeftFoot = true;
  }
  if((!RightFoot)&&(analogRead(A2)>=900)){
    RightFoot = true;
  }
  if((LeftFoot)&&(analogRead(A3)<900)){
    LeftFoot = false;
  }
  if((RightFoot)&&(analogRead(A2)<900)){
    RightFoot = false;
  }
  if(!((analogRead(A2)>500)&&(analogRead(A3)>900))){
    if (abs(cur-analogRead(A0))>2){
      if((RightFoot)&&(!LeftFoot)) {
        Mouse.move((cur-analogRead(A0))*-2.8444,0);
      }
      cur = analogRead(A0);
    }
    else if (abs(dur-analogRead(A1))>2){
      if((LeftFoot)&&(!RightFoot)){
        Mouse.move((dur-analogRead(A1))*-2.8444,0);
      }
      dur = analogRead(A1);
    }
  }

  accum++;
  if(accum==100){
    if ((encoderValue>3)&&(encoderValue<30)){
      walked = millis();
      Keyboard.release(KEY_LEFT_SHIFT);
      Keyboard.press(KEY_LEFT_ALT);
      Keyboard.press('w');
    }else if((encoderValue>=30)&&(encoderValue<60)){
      walked = millis();
      Keyboard.release(KEY_LEFT_SHIFT);
      Keyboard.release(KEY_LEFT_ALT);
      Keyboard.press('w');
    }else if(encoderValue>=60){
      walked = millis();
      Keyboard.release(KEY_LEFT_ALT);
      Keyboard.press(KEY_LEFT_SHIFT);
      Keyboard.press('w');
    }
    encoderValue = 0;
    accum = 0;
  }
      //Serial.println(encoderValue);
  delay(1);
}

void updateEncoder(){
  int MSB = digitalRead(encoderPin1); //MSB = most significant bit
  int LSB = digitalRead(encoderPin2); //LSB = least significant bit

  int encoded = (MSB << 1) |LSB; //converting the 2 pin value to single number
  int sum  = (lastEncoded << 2) | encoded; //adding it to the previous encoded value

  if(sum == 0b1101 || sum == 0b0100 || sum == 0b0010 || sum == 0b1011){
    encoderValue++;
  }
  if(sum == 0b1110 || sum == 0b0111 || sum == 0b0001 || sum == 0b1000){
   encoderValue--;
   // walked1 = millis();
   // Keyboard.press('s');
  }
  lastEncoded = encoded; //store this value for next time
}