How to make NPCs reject certain objects? (Content Patcher)

[fartbutt384]

Hi! I am new to here and modding in general!

-----Explanation (not a must read to understand the issue!)--------
I'm working on a dialogue replacer mod for Elliot to begin with. In this mod I thought it'd be a good moment to practice NPC gifting, so I gave Elliot a couple lines about how he dislikes Diamonds because they bring him bad luck. Every so often Elliot will give the player Diamonds (until the friendship is too high). I worked out how to make Elliot hate Diamonds, but I want to take it a step further.
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I want Elliot to automatically reject Diamonds as a gift from the player and give some witty line about it as well. In the alternate dialogue file I appointed for him (which works just fine in other cases), this is the line I put in to try to get that done:
"
"RejectItem_72": "@... I am offended! Get that thing away from me! $a",


When trying this line of code in game (and thus within SMAPI), SMAPI gives no error text, yet Elliot still takes the Diamond even though he hates it. Can anyone help me?

 

[Azurysu]

Hi there! Glad there's someone else trying out modding too! :)

I don't know much about NPC gifting, but it seems you only wrote the dialogue line, not the actual "action" which makes Elliot hate diamonds.

In that case, you'll need to edit Elliot's gift tastes by editing the NPCGiftTastes file. You can check how TextOperations work in the official documentation! (the link will take you to text-operations.md). They changed the way it works after 1.6- and it's pretty confusing now ;--; Basically what you've gotta do is use the append operation to add your desired item to an NPC's list of tastes.

It should be something like this:

{
    "Action": "EditData",
    "Target": "Data/NPCGiftTastes",
        "TextOperations": [
            {
                "Operation": "Append", //adds instead of replacing values
                "Target": ["Fields", "Elliot", "6"], //targets Elliot's hated gifts (6-7 is hated gifts)
                "Value": "72", //diamond or item ID
                "Delimiter": " " //optional, only use it when you have +2 values updating at the same time
            }
        ]

}

We use "Fields" and not "Entries" as a target so your mod has best compatibility with other mods. If you wish to change more than a couple of fields, I highly recommend you to use Entries. If you are unsure of which one to use, check action-editdata.md.

Delimiter on the other hand is only necessary if you have multiple values updating at the same time, aka add more than one item to a list, so you're good there.

This thread should help you with it, as another person has already asked this before. I hope this wasn't too confusing for you. I sometimes tend to explain myself poorly ;--;
Have a good day!