Rule Set Editor

Name	Type	Description
ルールタイル素材 asset	RuleTileAsset	基点にする素材です。ルールが編集の初期値になり、タイルがプレビューとタイル候補に使われます。
ルールセット rule_set	RuleSet	編集の初期値にするルールセットです(エディタ未編集の時に使われます)。
ルールタイルセット tile_set	RuleTileSet	サンプルプレビューとタイル候補に使うタイルセットです。

Name	Type	Description
ルールセット rule_set	RuleSet	編集後のルールセットです。
ルールタイル素材 asset	RuleTileAsset	接続タイルセットと編集後ルールを束ねた素材です(タイル入力がある時)。
プレビュー preview	Image	編集中ルールでサンプル配置を解決した確認画像です。
ルール数 rule_count	Int	ルールケース数です。
警告 warnings	Text	未接続や参照切れなどの注意点です。
概要 summary	Text	結果の短いまとめです。

Parameters

Name	Type	Default	Range	Description / Options
ルールデータ rule_data	CustomData	—	—	エディタが保存しているルールセットのJSONです。通常は直接触らず、エディタから編集します。

Overview

A dedicated editor node for building autotile rules visually: which tile to place in each situation. Use it when presets from rule_set_preset are not enough and you need custom placement logic such as grime scatter or a special tile for one exact arrangement.

Usage tips

Start from a preset. The fastest route is to import rules from rule_set_preset as the initial value, then extend them. Writing every 3×3 condition from scratch is laborious.
The key to varied results is choosing between noise replacement, which clusters moss or grime, and weighted randomness.
Connect the asset and tile set so you can edit while viewing the sample preview.

Related nodes

rule_set_preset — starting presets
rule_canvas / rule_render — consume the rules
rule_operation_merge — combines rule sets
autotile_from_parts / autotile_from_template — generate tile images

What this node does

Edits a group of rules (RuleSet) describing "place this tile when neighboring cells look like this" without writing JSON. Connecting an asset or tile set enables:

a sample preview in the editor's upper left, showing a small placement resolved with the rule being edited;
tile ID suggestions in the output-tile field; and
importing a connected rule set as the initial value.

How to use the editor

Filter with material chips, then create a case with "+ Add Rule."
3×3 grid: click to cycle conditions (Any → Same material → Empty → Occupied → Other material → Specific material → Tag). Right-click cycles in reverse. Specific material and Tag show an input field below.
Output tiles: adding several displays their weight ratio (%). With Replacement Method = Noise, the first is normal and later outputs are replacements. The specified share of cells is replaced in spatial clusters, which works well for moss and grime.
Shape and sequence conditions: conditions such as "at least N rows from the bottom," "a straight segment of at least N cells," and "every N cells from the start." They match only cells placed by rectangle or line operations.
Use the JSON button to inspect or edit the raw JSON at any time.

Example: Grimy bricks

Open the wall-material rules and add two outputs (normal brick / cracked brick) to the inside case. Set Replacement Method to Noise and the amount to 0.15. About 15% of the wall interior becomes spatially clustered cracked bricks.

Input Ports

Output Ports