If the int number close to the answer number it gives me a message in swift?

I am trying to code a function that can give me a message when two int numbers get close. Like:

static let too_low_number = "The number is too low."
static let low_number = "The number is low."
static let too_high_number = "The number is too high."
static let high_number = "The number is high."

var closemove = 10
var appanswer = Int.random(in: 1...100)
var playeranswer = 0

if playeranswer gets 10 int close to appanswer then it gives a message. Get 10 int close but less-than appanswer then it gives me low_number and Get bigger distance than 10 int but less-than appanswer then it gives me too_low_number.

same as Get 10 int close but greater-than appanswer then it gives me high_number and Get bigger distance than 10 int but greater-than appanswer then it gives me too_high_number.