How the game handles the player clicking on the screen

Player_Cursor.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class Player_Cursor : MonoBehaviour {

    public Camera main_Camera;
    public GameObject Player;
    // Update is called once per frame
    
    void Start(){
        Cursor.visible = true; By default, the player can't see their cursor. So we just make it visible.
    }

    void Update () {
        ClickOn();
    }

void ClickOn()
    {
        if (Input.GetMouseButtonUp(1))
        {
            Ray camera_Ray = main_Camera.ScreenPointToRay(Input.mousePosition);
            RaycastHit hit_Ray;
            
            Physics.Raycast(camera_Ray, out hit_Ray);
            ClickableParent C = hit_Ray.collider.gameObject.GetComponent();
            C.OnClick(Player.transform.position); 
	}    
}
    
    public static Vector3 GetPositionClick(Camera C) //returns the point where the raycast hit on the ground
    {
        Ray camera_Ray = C.ScreenPointToRay(Input.mousePosition);
        RaycastHit hit;
        Physics.Raycast(camera_Ray, out hit);
        return (hit.point);
    }