Setting transform.position not behaving properly

Questions & Answers
1

Im begining in Unity, so I might be missing something, but i have 4 game objects: 2 players in each side of the screen, and 2 virus on the midlle. The players can shoot boubles to move the virus away from them. To do that i have this code in each virus:

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class greenVirus : MonoBehaviour
{
    [SerializeField] Transform otherVirus;
    Vector3 horizontal_move = new Vector3(1.4f, 0);
    Vector3 vertical_move = new Vector3(0, 3);

    private void OnTriggerEnter2D(Collider2D collision)
    {
        if (collision.gameObject.name == "blueBouble(Clone)"
            && transform.position.x < 5.6f
            && otherVirus.position != transform.position + horizontal_move)
        {
            transform.position += horizontal_move;
            Destroy(collision.gameObject);
        }
        else if (collision.gameObject.name == "redBouble(Clone)"
            && transform.position.x > -5.6f
            && otherVirus.position != transform.position - horizontal_move)
        {
            transform.position += -horizontal_move;
            Destroy(collision.gameObject);
        }
        else
        {
            Destroy(collision.gameObject);
        }
    }
}

The viruses shoul move ins steps of 1.4 units, to a maximum of 5.6/-5.6.
But when i try to run this, everyting goes fine except for when i try to “centralize” the virus again with the boubles (making the x value 0). In the game view and the scene view I can clearly see the the virus is in the correct place, but in the inspector the x position shows as -2.384186e-07, which is really strange. I have other function to move the virus around, but they seem to be working properly, the only probem i find is here.

Hope someone can help me, and thenks in advance :slight_smile:

2

Never use equal / unequal conditions like this:

otherVirus.position != transform.position + horizontal_move

when you deal with floating point numbers. Those will most likely never be satisfied. Always use either ranges or greater / lower than limits.

3

Adding on to @Bunny83 's answer, otherVirus position could be something like 4.99999999999 and transform.position could be 5. Instead do something like this

if (Vector3.Distance(otherVirus.position, transform.position) < rangeVariable)