How to press a button in trigger ?

Hello developers ! I am going to make a money-collection system but i have a problem. The player should walk in the Money’s trigger and press “g” key to collect money and that will give the player 2$ but i cant use ontriggerenter in update function and i cant use update in ontriggerenter function Can you DEVELOPERS help me to solve my problem ?

Hello! You need to initialize 1 more boolean variable, which will help you to understand, if player now is in trigger zone.

boolean inTrigger = false;

void Update(){
  //here you can check if player pressed 'g' button and collect money

void OnTriggerEnter(Collider col){
  inTrigger = true;

void OnTriggerExit(Collider col){
  inTrigger = false;