Minecraft Forums

Help, I want to only allow certain potion effects to the splash potion ingredient, is there a way?

Sorry for my bad english!

{

"type": "minecraft:crafting_shaped",

  "category": "equipment",

  "key": {

    "I": "minecraft:iron_nugget",

    "S": "minecraft:splash_potion",

    "T": "minecraft:tnt"

  },

  "pattern": [

    "ITI",

    "ISI",

    "III"

  ],

  "result": {

    "count": 4,

    "id": "lcsmatter:grenade"

  }

}

You have to work with Predicates:

This example applies for Night Vision Potions:

In your datapack create:

data/datapackname/predicates/night_vision_splash.json

{
  "condition": "minecraft:match_tool",
  "predicate": {
    "items": ["minecraft:splash_potion"],
    "nbt": "{Potion:\"minecraft:night_vision\"}"
  }
}

Then update your script to:

{
  "type": "minecraft:crafting_shaped",
  "category": "equipment",
  "pattern": [
    "ITI",
    "ISI",
    "III"
  ],
  "key": {
    "I": { "item": "minecraft:iron_nugget" },
    "T": { "item": "minecraft:tnt" },
    "S": {
      "item": "minecraft:splash_potion",
      "predicate": "[i]datapackname[/i]:night_vision_splash"
    }
  },
  "result": {
    "item": "lcsmatter:grenade",
    "count": 4
  }
}

Rename datapackname to your actual datapack name