continuous rotation servo (arduino) responding to button press

continuous rotation servo (arduino) responding to button press

I am trying to make a continous rotation servo move clockwise if button on
pin2 is pressed, and counterclockwise if button on pin3 is pressed. I want
the servo to keep moving in the direction set according to the button
until the button is released. This is the code I have so far (I am new to
arduino):
#include <Servo.h>
Servo myservo; // create servo object to control a servo
// CONSTANTS
// PINS
const int crServo = 12; // sets pin 12 as servo
const int buttonPinCW = 2; // sets pin 2 as button; CW => clockwise =>
FOCUS FAR
const int buttonPinCC = 3; // sets pin 3 as button; CC =>
counterclockwise => FOCUS NEAR
const int ledPin = 10; // sets pin 10 as LED
// SERVO PROPERTIES
const int crSpeedDefault = 1500; // 1500 is the stay still position,
motor should not turn
const int crSpeedCW = 1300; // 1300 turns the motor full speed clockwise
const int crSpeedCC = 1700; // 1700 turns the motor full speed
counter-clockwise
const int crStepDefault = 2;
// SET BUTTON STATES
int buttonStateCW = 0; //sets button 1 as off
int buttonStateCC = 0; // sets button 2 as off
void setup()
{
myservo.attach(crServo); // attaches the servo on pin 12 to the servo
object
pinMode (buttonPinCW, INPUT); // sets button as input
pinMode (buttonPinCC, INPUT); // sets button as input
pinMode (ledPin, OUTPUT); // sets led as output
myservo.write(crSpeedDefault); // default servo to crSpeedDefault
}
int slowFocusPull(int x){
int result;
result = abs(x - crSpeedDefault) / crStepDefault;
return result;
}
void loop()
{
buttonStateCW = digitalRead(buttonPinCW);
buttonStateCC = digitalRead(buttonPinCC);
// clockwise rotation
if (buttonStateCW == HIGH) {
digitalWrite(ledPin, HIGH);
myservo.write(slowFocusPull(crSpeedCW));
// counterclockwise rotation
} else if (buttonStateCC == HIGH) {
digitalWrite(ledPin, HIGH);
myservo.write(slowFocusPull(crSpeedCC));
} else {
digitalWrite(ledPin, LOW);
}
}