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Physics.OverlapSphere

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public static function OverlapSphere(position: Vector3, radius: float, layerMask: int = AllLayers): Collider[];
public static Collider[] OverlapSphere(Vector3 position, float radius, int layerMask = AllLayers);

Parameters

Description

Returns an array with all colliders touching or inside the sphere.

NOTE: Currently this only checks against the bounding volumes of the colliders not against the actual colliders.

	// Call a damage function on all objects caught in the
	// radius of an explosion.
	function ExplosionDamage(center: Vector3, radius: float) {
		var hitColliders = Physics.OverlapSphere(center, radius);
		
		for (var i = 0; i < hitColliders.Length; i++) {
			hitColliders[i].SendMessage("AddDamage");
		}
	}
using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour { void ExplosionDamage(Vector3 center, float radius) { Collider[] hitColliders = Physics.OverlapSphere(center, radius); int i = 0; while (i < hitColliders.Length) { hitColliders[i].SendMessage("AddDamage"); i++; } } }