cannot implicitly convert type int' to unityengine.vector3'

Question

hi i am new in unity so this my code :

using UnityEngine;
using System.Collections;

public class NewBehaviourScript : MonoBehaviour {

    // Use this for initialization
    void Start () {

    }

    // Update is called once per frame
    void Update () {

        var pos = transform.position;
        pos.x += 1;
        transform.position = pos;
        string ss = "hellow";

        if(pos>100){
            print (ss);
        }
    }
}

but give me this error in if condition line :cannot implicitly convert type int' to unityengine.vector3'

Well yes - what do you expect `pos > 100` to mean? `pos` is a position, a `Vector3`... what does it mean for a position to be greater than 100? — Jon Skeet, Aug 10 '16 at 07:28

score 2 · Accepted Answer · answered Aug 10 '16 at 07:30

2

transform.position is of type Vector3. you should instead do pos.x > 100 instead of pos > 100 inside the if condition.

answered Aug 10 '16 at 07:30

Smit Davda

638
5
15

score 2 · Answer 2 · answered Aug 10 '16 at 07:38

2

You made two errors, here.

At first, you cannot modify a value for a single axis at a time, in C#. You have to reassign the entire vector.

So, pos.x += 1; is wrong and it should be:

pos = new Vector3(pos.x + 1, pos.y, pos.z);

In the end, also the test if(pos>100){ is wrong: you should take a particular axis' value to check (I think: if(pos.x>100){).

answered Aug 10 '16 at 07:38

Andrea

6,032
2
28
55

i just use pos.x += 1 and my code work fine . so can u tell me what is vectror3 or vector1,vector2 !? – Erfan Aug 10 '16 at 07:40
`pos.x += 1;` is totally fine – JeanLuc Aug 10 '16 at 16:29
in general immutability aids in reasoning about code https://stackoverflow.com/questions/3751911/why-are-c-sharp-structs-immutable – 2manyprojects Aug 12 '16 at 22:25
admittedly it can all seem a bit academic until you see the benefits in use – 2manyprojects Aug 12 '16 at 22:32

cannot implicitly convert type int' to unityengine.vector3'

2 Answers2