MonoBehaviour.OnCollisionStay2D(Collision2D)
Description

Sent each frame where a collider on another object is touching this object's collider (2D physics only).

Further information about the objects involved is reported in the Collision2D parameter passed during the call.

See Also: Collision2D class, OnCollisionEnter2D, OnCollisionExit2D.
var rechargeRate = 10.0;
var batteryLevel: float;

function OnCollisionStay2D(coll: Collision2D) { if (coll.gameObject.tag == "RechargePoint") batteryLevel = Mathf.Min(batteryLevel + rechargeRate * Time.deltaTime, 100.0); }