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Seed Synthesizer Plant Registration

The Seed Synthesizer supports dynamic plant registration using ScriptEvents.
Plant definitions are sent as a JSON string after worldLoad, and UtilityCraft parses and registers them automatically.

Sending the ScriptEvent​

import { system, world } from "@minecraft/server";

const newPlants = {
    "utilitycraft:example_crop": {
      cost: 64000,
      drops: [
        { item: "minecraft:iron_ingot", amount: [1,3], chance: 1 },
        { item: "utilitycraft:example_seed", amount: 1, chance: 0.05 }
      ]
    }
};

world.afterEvents.worldLoad.subscribe(() => {
  system.sendScriptEvent(
    "utilitycraft:register_plant",
    JSON.stringify(newPlants)
  );
});

You must always:

  • Wait for worldLoad
  • Use JSON.stringify
  • Send through utilitycraft:register_plant

Plant Object Fields​

Each plant definition supports the following fields:

  • cost (required)
    Energy required to complete one growth cycle.

  • drops (required)
    Array of drop definitions produced when the cycle completes.

Each drop entry supports:

  • item (required)
    Item produced by the plant.

  • amount (required)
    Fixed number OR range [min,max].

  • chance (required)
    Probability between 0 and 1.

If fields are omitted or invalid, they are ignored safely.

Example Plant Object​

const plants = {
  "utilitycraft:coal_seeds": {
    cost: 64000,
    drops: [
      { item: "minecraft:coal", amount: [2,4], chance: 1 },
      { item: "utilitycraft:coal_seeds", amount: 1, chance: 0.05 }
    ]
  }
};

Notes​

  • If a plant already exists, it will be replaced.
  • Invalid fields are ignored safely.
  • Plants are registered at runtime and do not require modifying UtilityCraft source files.