Best way to check distance between player and objects

Question

Hi. I need a number of objects in each of my scenes to do something when the player is within a certain distance. Would it be best to attach a script to each object which checks the distance to the player, or attach a script to the player which loops and checks the distance to each object?

Target platform is android if it matters. Thanks in advance!

Answer 1

Best Answer

Answer by clunk47 · Sep 14, 2013 at 05:40 AM

http://docs.unity3d.com/Documentation/ScriptReference/Vector3.Distance.html

EXAMPLE:

 using UnityEngine;
 using System;
 using System.Collections;
 
 public class Example : MonoBehaviour 
 {
     [SerializeField]
     private float range = 10.0f;
 
     private Transform t;
     private Transform player;
 
     private void Awake()
     {
         t = this.transform;
         player = GameObject.FindGameObjectWithTag("Player").transform;
     }
 
     private void Update()
     {
         if (player)
             print(player.name + " is " + Distance().ToString() + " units from " + t.name);
 
         else
             print("Player not found!");
     }
 
     private float Distance()
     {
         return Vector3.Distance(t.position, player.position);
     }
 }

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Christopher_Mtn · Jan 09, 2016 at 04:27 AM 0

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Wait, if I wanted to put something that I wanted my t object to do if the player was close, where would I put it? Sorry, I'm pretty new to program$$anonymous$$g!

MastersOfUs Christopher_Mtn · Jan 09, 2016 at 10:06 AM 0

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Put it in the object you want to perform an action.

Christopher_Mtn MastersOfUs · Jan 09, 2016 at 07:16 PM 0

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Ok yeah, I've put it on my plane object and I want it so that if the player is close to the plane they can press E to get in. So then, where in the script would I put if__ bool planeenter = true?

And then using that boolean I could check if they are close enough or not.

Best way to check distance between player and objects

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