Comments

• ChrisIceBox

  October 2023

  Welcome to the community, @ryanfaelen.

  Essentially, I want the player to be able to interact with certain words, as if they were hotspots. IE, drag a key item from the inventory onto the word 'door' to unlock it.

  As a fan of text adventures, that's a great idea!

  I'd expect the cleanest way to handle this would be to leverage TMPro's link tag to mark your interactive text portions with a unique ID.

  This is because TMPro has a helper function - FindIntersectingLink - to determine which link the mouse is currently over. A custom script could feasibly compare this link's ID with one you specify, and run an ActionList if you then de-select a given item while over it.

  This may need tweaking, but it's probably something along these lines:

  using UnityEngine;
  using AC;
  using TMPro;
  
  public class ItemLink : MonoBehaviour
  {
  
      public TMP_Text textBox;
      public string linkID;
      public ActionList actionList;
      public int itemID;
      private bool isOverLink;
  
      void OnEnable () { EventManager.OnInventoryDeselect += OnInventoryDeselect; }
      void OnDisable () { EventManager.OnInventoryDeselect -= OnInventoryDeselect; }
  
      void Update ()
      {
          int linkIndex = TMP_TextUtilities.FindIntersectingLink (textBox, Input.mousePosition, KickStarter.CameraMain);
          if (linkIndex != -1)
          {
              TMP_LinkInfo linkInfo = textBox.textInfo.linkInfo[linkIndex];
              if (linkInfo.GetLinkID () == linkID)
              {
                  isOverLink = true;
                  return;
              }
          }
          isOverLink = false;
      }
  
      void OnInventoryDeselect (InvItem invItem)
      {
          if (isOverLink && invItem.id == itemID)
          {
              actionList.Interact ();
          }
      }
  
  }
  
• ryanfaelen

  October 2023

  Thanks, Chris. Would this change if the user has a touch screen device?
• ChrisIceBox

  October 2023

  I'd say let's check that it works on desktop first, but otherwise it should just be a case of replacing:

  Input.mousePosition
  

  with:

  KickStarter.playerInput.GetMousePosition ()
  

  That will have it rely on AC's cursor position, so it ought then to be cross-platform.
• ryanfaelen

  October 2023

  Great I will given it a try and report back.