From 940d8333de5d67cb26c7a04d478b646ec00163ac Mon Sep 17 00:00:00 2001
From: DBotThePony <dbotthepony@yandex.ru>
Date: Thu, 16 Nov 2023 21:44:20 +0700
Subject: [PATCH] Handle vanilla-like trim cloning recipes

---
 .../mc/otm/matter/MatterManager.kt            | 22 ++++++++++++-------
 1 file changed, 14 insertions(+), 8 deletions(-)

diff --git a/src/main/kotlin/ru/dbotthepony/mc/otm/matter/MatterManager.kt b/src/main/kotlin/ru/dbotthepony/mc/otm/matter/MatterManager.kt
index 097f8d008..39e139b7a 100644
--- a/src/main/kotlin/ru/dbotthepony/mc/otm/matter/MatterManager.kt
+++ b/src/main/kotlin/ru/dbotthepony/mc/otm/matter/MatterManager.kt
@@ -731,7 +731,7 @@ object MatterManager {
 		private fun doTryToBacktrack(item: Item, makeCommentary: Boolean): Result {
 			val recipes = input2Recipes[item]
 
-			if (recipes == null || recipes.isEmpty() || !recipes.all { it.allowBacktrack } || !recipes.all { it.inputs.all { it.all { it.input.item == item } } }) {
+			if (recipes.isNullOrEmpty() || !recipes.all { it.allowBacktrack } || !recipes.all { it.inputs.all { it.all { it.input.item == item } } }) {
 				if (makeCommentary)
 					comment(item, TextComponent("Item '${item.registryName}' has no recipes"))
 
@@ -859,14 +859,20 @@ object MatterManager {
 								}
 							}
 						} else if (ivalue.isSkipped) {
-							comment(item, TextComponent("Input $entry at input slot $i in ${recipe.formattedName} is recursive"))
-							recursiveSkips.add(entry)
-
-							if (inputs.size == 1) {
-								hadSkips = true
-								continue@recipesLoop
-							} else {
+							if (recipes.size == 1 && entry.input.item == recipe.output.item) {
+								// assume cloning and/or catalyst?
+								comment(item, TextComponent("Input $entry at input slot $i is assumed to be cloning/catalyst"))
 								continue@innerInputsLoop
+							} else {
+								comment(item, TextComponent("Input $entry at input slot $i in ${recipe.formattedName} is recursive"))
+								recursiveSkips.add(entry)
+
+								if (inputs.size == 1) {
+									hadSkips = true
+									continue@recipesLoop
+								} else {
+									continue@innerInputsLoop
+								}
 							}
 						}