// 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 example : 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++;
        }
    }
}

import UnityEngine
import System.Collections

class example(MonoBehaviour):

    def ExplosionDamage(center as Vector3, radius as single):
        hitColliders as (Collider) = Physics.OverlapSphere(center, radius)
        i as int = 0
        while i < hitColliders.Length:
            hitColliders[i].SendMessage('AddDamage')
            i++