When checking distance the distance is return with some E like : 1.922192E-06

Unity Engine
,
1 
using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class MoveNavi : MonoBehaviour
{
    public IKControl ikControl;
    public GameObject navi;
    public GameObject navi1;
    public GameObject naviParent;
    public bool childChangedNaviIsHandChild = false;

    private bool activateHelmet = false;

    private void Start()
    {
        navi1 = naviParent.transform.Find("NAVI1").gameObject;
    }

    private void Update()
    {
        ChangeChild();
        MoveNaviToTargetAndBack();
    }

    public void ChangeChild()
    {
        var dist = Vector3.Distance(transform.position, navi1.transform.position);
        if (dist < 0.1f && childChangedNaviIsHandChild == false)
        {
            childChangedNaviIsHandChild = true;
            ikControl.startMovingNAVI = false;
            navi.transform.parent = naviParent.transform;

            if (ikControl.target != null)
                ikControl.target.distance = 0;
        }

        if (ikControl.startMovingNAVI)
        {
            transform.position = Vector3.MoveTowards(transform.position, navi1.transform.position, 0.5f * Time.deltaTime);
        }
    }

    public void MoveNaviToTargetAndBack()
    {
        if (ikControl.target != null && ikControl.target.distance != 0 && IsNaviInHandChangeInteractableMode() == true)
        {
            var dist = Vector3.Distance(navi.transform.position, ikControl.target.transform.position);
            if (dist < 0.1f)
            {
                ikControl.toTarget = false;
            }

            if (ikControl.toTarget == false)
            {
                InCaseHelmet();

                var dist1 = Vector3.Distance(navi.transform.position, navi1.transform.position);
                if (dist1 < 0.1f && ikControl.target.GetComponent<Interactable>() != null)
                {
                    ikControl.target.distance = 0;
                }        
                navi.transform.position = Vector3.MoveTowards(navi.transform.position, navi1.transform.position, 3f * Time.deltaTime);
            }

            if (ikControl.toTarget == true)
                navi.transform.position = Vector3.MoveTowards(navi.transform.position, ikControl.target.transform.position, 3f * Time.deltaTime);
        }
    }

    private void InCaseHelmet()
    {
        var dist1 = Vector3.Distance(navi.transform.position, navi1.transform.position);
        if (dist1 < 0.1f && activateHelmet == false && ikControl.target.name == "kid_from_space_helmet")
        {
            var helmetParent = GameObject.Find("Helmet Parent");
            GameObject Helmet = helmetParent.transform.Find("kid_from_space_helmet").gameObject;
            Helmet.SetActive(true);
            activateHelmet = true;
        }
    }

    public bool IsNaviInHandChangeInteractableMode()
    {
        bool inhand = false;

        if (navi.transform.IsChildOf(naviParent.transform) == true)
        {
            inhand = true;
        }

        return inhand;
    }
}

The returning error number of the distance is in this lines :

var dist1 = Vector3.Distance(navi.transform.position, navi1.transform.position);
                if (dist1 < 0.1f && ikControl.target.GetComponent<Interactable>() != null)
                {
                    ikControl.target.distance = 0;
                }

I used a breakpoint and navi and navi1 are never null and I see that navi is getting to navi1 but still it’s never get in pass in the distance check it’s all the time giving a distance number with E.

navi1 is empty gameobject and navi is child of navi1

2

Check out here how to compare floating point values

Here’s more explanation from another thread

Finally, learn what E is

3

From your example 1.922192E-06 is the same value as 0.000001922192

3 Likes
4

Right, I would suggest to look up scientific notation and more specifically the E notation. Any if you’re at it, maybe watch this computerphile video on floating point numbers.

edit: I just noticed you already put the wikipedia article in your earlier reply^^.

1 Like