fix: preserve Yuoki behavior across Factorio 2.1 API changes

README.md

@@ -1,4 +1,34 @@
-# Yuoki Industries (Factorio 2.0)
-Yuoki-Industries - a factorio mod by: [YuokiTani](https://mods.factorio.com/user/YuokiTani)
+# Yuoki Industries (Factorio 2.1)
 
-Currently Maintained by: [jatmn](https://mods.factorio.com/user/jatmn)
+A Factorio mod by [YuokiTani](https://mods.factorio.com/user/YuokiTani),
+currently maintained by [jatmn](https://mods.factorio.com/user/jatmn).
+
+## Compatibility
+
+Yuoki **1.3.0** requires **Factorio 2.1.20 or later**. Use Yuoki **1.2.x** with Factorio 2.0.
+
+Space Age and Quality are optional. If enabled, each must be version 2.1.20
+or later. Factorio 2.1 provides recycling through the separate built-in
+Recycler mod; Space Age works with Quality disabled. Yuoki's quality module
+requires both Space Age and Quality.
+
+Do not enable `Yuoki_F2`, `yi_engines_F2`, or `YuokiTweaks` alongside this mod;
+these are declared incompatible in [info.json](info.json).
+
+## Installation
+
+Install [Yuoki Industries](https://mods.factorio.com/mod/Yuoki) through the
+in-game mod manager, selecting a version compatible with your Factorio version.
+To install from source, build `Yuoki_1.3.0.zip` using the commands in
+[Development checks](docs/development.md#installable-package), then put that ZIP
+in your Factorio mods directory. Enable only one installed copy of Yuoki.
+Back up existing saves before upgrading from Factorio 2.0.
+
+## Validation
+
+The 1.3.0 compatibility audit uses the official Factorio **2.1.21** headless
+engine with base Yuoki, Recycler, Quality, and Space Age with Quality both
+on and off. Headless checks cover prototype loading and short save runs;
+they do not establish graphical correctness or full third-party mod compatibility.
+See [changelog.txt](changelog.txt) for changes and
+[CONTRIBUTING.md](CONTRIBUTING.md) for development requirements.

changelog.txt

@@ -1,11 +1,13 @@
 ---------------------------------------------------------------------------------------------------
 Version: 1.3.0
-Date: 5. 10. 2026
+Date: 8. 10. 2026
   Changes:
     - Added experimental Factorio 2.1 support (requires 2.1.20 or later). Use Yuoki 1.2.x for Factorio 2.0.
   Fixes:
     - Updated assembler pipe pictures, fuel and recipe categories, and product probabilities for startup compatibility.
     - Only load the Space Age quality module when quality is enabled.
+    - Preserve the YI Quality Module's 1% base quality chance with Factorio 2.1 effect units.
+    - Preserve hidden pipe connection indicators using the Factorio 2.1 per-connection field.
 ---------------------------------------------------------------------------------------------------
 Version: 1.2.23
 Date: 4. 7. 2026

info.json

@@ -1,10 +1,10 @@
 {
 	"name": "Yuoki",
 	"version": "1.3.0",
-	"date": "2026-10-05",
+	"date": "2026-10-08",
 	"author": "YuokiTani",
 	"contact": "https://discord.gg/fM6NjWabAA",
-	"homepage": "https://github.com/jatmn/Yuoki-Factorio-2.0",
+	"homepage": "https://github.com/jatmn/Yuoki-Factorio-2.x",
 	"factorio_version": "2.1",
 	"dependencies": [
 		"base >= 2.1.20",

prototypes/entity/e_pipes.lua

@@ -730,10 +730,9 @@ data:extend({
       volume = 200,
       pipe_covers = pipecoverspictures(), -- in case a real pipe is connected to a ghost
       pipe_connections = {
-        { direction = defines.direction.east, position = { 0, 0 } },
-        { direction = defines.direction.west, position = { 0, 0 } },
+        { direction = defines.direction.east, position = { 0, 0 }, hide_connection_info = true },
+        { direction = defines.direction.west, position = { 0, 0 }, hide_connection_info = true },
       },
-      hide_connection_info = true,
     },
     pictures = pipepictures_hv(),
 
@@ -768,10 +767,9 @@ data:extend({
       volume = 200,
       pipe_covers = pipecoverspictures(), -- in case a real pipe is connected to a ghost
       pipe_connections = {
-        { direction = defines.direction.north, position = { 0, 0 } },
-        { direction = defines.direction.south, position = { 0, 0 } },
+        { direction = defines.direction.north, position = { 0, 0 }, hide_connection_info = true },
+        { direction = defines.direction.south, position = { 0, 0 }, hide_connection_info = true },
       },
-      hide_connection_info = true,
     },
     pictures = pipepictures_hv(),
 
@@ -932,12 +930,11 @@ data:extend({
       volume = 80,
       pipe_covers = pipecoverspictures(), -- in case a real pipe is connected to a ghost
       pipe_connections = {
-        { direction = defines.direction.north, position = { 0, 0 } },
-        { direction = defines.direction.east, position = { 0, 0 } },
-        { direction = defines.direction.south, position = { 0, 0 } },
-        { direction = defines.direction.west, position = { 0, 0 } },
+        { direction = defines.direction.north, position = { 0, 0 }, hide_connection_info = true },
+        { direction = defines.direction.east, position = { 0, 0 }, hide_connection_info = true },
+        { direction = defines.direction.south, position = { 0, 0 }, hide_connection_info = true },
+        { direction = defines.direction.west, position = { 0, 0 }, hide_connection_info = true },
       },
-      hide_connection_info = true,
     },
     pictures = pipepictures_hv(),
 
@@ -974,15 +971,15 @@ data:extend({
       volume = 80,
       --pipe_covers = pipecoverspictures(),
       pipe_connections = {
-        { direction = defines.direction.north, position = { 0, 0 } },
+        { direction = defines.direction.north, position = { 0, 0 }, hide_connection_info = true },
         {
           connection_type = "underground",
+          hide_connection_info = true,
           direction = defines.direction.south,
           position = { 0, 0 },
           max_underground_distance = 20,
         },
       },
-      hide_connection_info = true,
     },
     impact_category = "metal",
     pictures = {
@@ -1111,12 +1108,11 @@ data:extend({
       volume = 130,
       pipe_covers = pipecoverspictures(), -- in case a real pipe is connected to a ghost
       pipe_connections = {
-        { direction = defines.direction.north, position = { 0, 0 } },
-        { direction = defines.direction.east, position = { 0, 0 } },
-        { direction = defines.direction.south, position = { 0, 0 } },
-        { direction = defines.direction.west, position = { 0, 0 } },
+        { direction = defines.direction.north, position = { 0, 0 }, hide_connection_info = true },
+        { direction = defines.direction.east, position = { 0, 0 }, hide_connection_info = true },
+        { direction = defines.direction.south, position = { 0, 0 }, hide_connection_info = true },
+        { direction = defines.direction.west, position = { 0, 0 }, hide_connection_info = true },
       },
-      hide_connection_info = true,
     },
     pictures = pipepictures_ec(),
 
@@ -1153,15 +1149,15 @@ data:extend({
       volume = 130,
       --pipe_covers = pipecoverspictures(),
       pipe_connections = {
-        { direction = defines.direction.north, position = { 0, 0 } },
+        { direction = defines.direction.north, position = { 0, 0 }, hide_connection_info = true },
         {
           connection_type = "underground",
+          hide_connection_info = true,
           direction = defines.direction.south,
           position = { 0, 0 },
           max_underground_distance = 30,
         },
       },
-      hide_connection_info = true,
     },
     impact_category = "metal",
     pictures = {
@@ -1930,12 +1926,11 @@ data:extend({
       volume = 100,
       pipe_covers = pipecoverspictures(), -- in case a real pipe is connected to a ghost
       pipe_connections = {
-        { direction = defines.direction.north, position = { 0, 0 } },
-        { direction = defines.direction.east, position = { 0, 0 } },
-        { direction = defines.direction.south, position = { 0, 0 } },
-        { direction = defines.direction.west, position = { 0, 0 } },
+        { direction = defines.direction.north, position = { 0, 0 }, hide_connection_info = true },
+        { direction = defines.direction.east, position = { 0, 0 }, hide_connection_info = true },
+        { direction = defines.direction.south, position = { 0, 0 }, hide_connection_info = true },
+        { direction = defines.direction.west, position = { 0, 0 }, hide_connection_info = true },
       },
-      hide_connection_info = true,
     },
     pictures = pipepictures_green(),
 
@@ -1972,15 +1967,15 @@ data:extend({
       volume = 100,
       --pipe_covers = pipecoverspictures(),
       pipe_connections = {
-        { direction = defines.direction.north, position = { 0, 0 } },
+        { direction = defines.direction.north, position = { 0, 0 }, hide_connection_info = true },
         {
           connection_type = "underground",
+          hide_connection_info = true,
           direction = defines.direction.south,
           position = { 0, 0 },
           max_underground_distance = 25,
         },
       },
-      hide_connection_info = true,
     },
     impact_category = "metal",
     pictures = {

prototypes/integration/space-age/data_y-module.lua

@@ -11,7 +11,7 @@ if mods["space-age"] and mods["quality"] then
       subgroup = "y-module",
       order = "m-4c",
       stack_size = 100,
-      effect = { quality = 0.1, consumption = 2.5, productivity = 0.05 },
+      effect = { quality = 0.01, consumption = 2.5, productivity = 0.05 },
       weight = 20 * kg,
       --auto_recycle = true,
     },