Can someone please tell me what this means?
using UnityEngine;
using System.Collections;
[RequireComponent(typeof(PlayerPhysics))]
public class PlayerController : MonoBehaviour {
public float speed = 8;
public float acceleration = 12;
private float currentSpeed;
private float targetSpeed;
private Vector2 amountToMove;
private PlayerPhysics playerphysics;
// Use this for initialization
void Start () {
playerPhysics = GetComponent<PlayerPhysics>();
}
// Update is called once per frame
void Update () {
targetSpeed = Input.GetAxisRaw ("Horizontal") * speed;
currentSpeed = IncrementTowards (currentSpeed, targetSpeed, acceleration);
}
private float IncrementTowards(float n, float target, float speed) {
if (n == target) {
return; // this is the line it says
} else {
float dir = Mathf.Sign (target - n);
n += Time.deltaTime * dir;
return (dir == Mathf.Sign (target - n)) ? n : target;
}
}
}