Version: 2019.4
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SphereCollider.radius

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public float radius;

Description

The radius of the sphere measured in the object's local space.

The sphere radius will be scaled by the transform's scale.

using UnityEngine;

//Always attach a SphereCollider component to your GameObject public class Example : MonoBehaviour { //This declares your SphereCollider SphereCollider myCollider;

void Start() { //Assigns the attached SphereCollider to myCollider myCollider = GetComponent<SphereCollider>(); }

void OnTriggerEnter(Collider other) { //This increases the Collider radius when the GameObject collides with a trigger Collider myCollider.radius += 2f; } }