how to use AddForce with a character controller code example

Example: how to add force to character controller

...   colliders = Physics.OverlapSphere (explosionPosition, explosionRadius);   for (var hit in colliders) {     if (hit.rigidbody){ // if it's a rigidbody, add explosion force:       hit.rigidbody.AddExplosionForce(explosionPower, explosionPosition, explosionRadius, 3.0);     } else { // but if it's a character with ImpactReceiver, add the impact:       var script: ImpactReceiver = hit.transform.GetComponent(ImpactReceiver);       if (script){         var dir = hit.transform.position - explosionPosition;         var force = Mathf.Clamp(explosionPower/3, 0, 15);         script.AddImpact(dir, force);       }     }   }   ...