POINTER SCRIPT

SCRIPT NEEDS TO ACCOMPLISH...

1. Script Communication <Singleton>

2. Cast raycast with mouse left click

   1. Check if "Floor" was hit

   2. Set target destination (tell player object to move here)

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

public class ClickToMovePointer : MonoBehaviour
{ 
    private Player _player;

    void Start()
    {
        _player = (Player)FindObjectOfType(typeof(Player));
    }

    void Update()
    {
        if (Mouse.current.leftButton.wasPressedThisFrame)
        {
            Ray rayOrigin = Camera.main.ScreenPointToRay(Mouse.current.position.ReadValue());
            RaycastHit hitInfo;

            if (Physics.Raycast(rayOrigin, out hitInfo))
            {
                if (hitInfo.collider.tag == "Floor")
                {
                    _player.UpdateDestination(hitInfo.point);
                }
            }
        }
    }
}

• LINE 5 --> finds the player script by using FindObjectOfType which searches assets by type <Script Name Player> and assigns it to the variable _player

• LINE 8-23 --> Placing raycast knowledge within the update method so the program listens for the mouse click from the user each frame

  • LINE 10-22 --> if statement to define function for left mouse click

    • LINE 12 --> Defines the starting point of the ray [rayOrigin]

    • LINE 13 --> Structure used to get information back from a raycast collision [RaycastHit]

    • LINE 15-21 --> if statement to define functions to run when raycast collides with an object

      • LINE 17-20 --> if statement to push the point of intersection [targetDestination] to the player script if the user clicks on the floor