From 24f238a618678df1fd2e9e52c189df96376ee379 Mon Sep 17 00:00:00 2001
From: PHIDIAS <phidias@aperx.org>
Date: Mon, 10 Aug 2026 03:27:37 +0900
Subject: [PATCH] .

---
 PHI-CL/data/b/sa.lua           | 35 ++++++++++++++++++++++++++++++++++
 PHI-CL/locale/en/locale.cfg    |  1 +
 PHI-CL/locale/ja/locale.cfg    |  1 +
 PHI-CL/locale/zh-CN/locale.cfg |  1 +
 PHI-CL/locale/zh-TW/locale.cfg |  1 +
 PHI-CL/settings.lua            |  8 ++++++++
 6 files changed, 47 insertions(+)

diff --git a/PHI-CL/data/b/sa.lua b/PHI-CL/data/b/sa.lua
index 9cacbe1..31b737d 100644
--- a/PHI-CL/data/b/sa.lua
+++ b/PHI-CL/data/b/sa.lua
@@ -128,3 +128,38 @@ if mods['quality'] and settings.startup['PHI-SA-QUALITY'].value then
         end
     end
 end
+
+if settings.startup['PHI-SA-QUALITY-TIER'].value then
+    -- SA C 3 QUALITY QUALITY
+    -- SA H 2 QUALITY QUALITY
+    if data.raw.quality['common'] and data.raw.quality['uncommon'] and data.raw.quality['rare'] and data.raw.quality['epic'] and data.raw.quality['legendary'] then
+        data.raw.quality['common'].next = 'rare'
+        data.raw.quality['rare'].next = 'legendary'
+
+        data.raw.quality['uncommon'].next = nil
+        data.raw.quality['uncommon'].hidden = true
+        data.raw.quality['uncommon'].hidden_in_factoriopedia = true
+
+        data.raw.quality['epic'].next = nil
+        data.raw.quality['epic'].hidden = true
+        data.raw.quality['epic'].hidden_in_factoriopedia = true
+    end
+
+    -- SA C 1 QUALITY TECHNOLOGY
+    if data.raw.technology['quality-module'] then
+        data.raw.technology['quality-module'].effects = {{type = 'unlock-recipe', recipe = 'quality-module'}, {type = 'unlock-quality', recipe = 'rare'}}
+    end
+
+    -- SA H 1 QUALITY TECHNOLOGY
+    if data.raw.technology['epic-quality'] then
+        data.raw.technology['epic-quality'].hidden = true
+        data.raw.technology['epic-quality'].hidden_in_factoriopedia = true
+        data.raw.technology['epic-quality'].effects = nil
+        data.raw.technology['epic-quality'].unit = {count = 1000, time = 30, ingredients = {{'automation-science-pack', 1}}}
+    end
+
+    -- SA C 1 QUALITY TECHNOLOGY
+    if data.raw.technology['legendary-quality'] then
+        data.raw.technology['legendary-quality'].prerequisites = {'agricultural-science-pack', 'utility-science-pack', 'quality-module'}
+    end
+end
diff --git a/PHI-CL/locale/en/locale.cfg b/PHI-CL/locale/en/locale.cfg
index 29e358a..1887bd1 100644
--- a/PHI-CL/locale/en/locale.cfg
+++ b/PHI-CL/locale/en/locale.cfg
@@ -65,6 +65,7 @@ PHI-SA-SPOIL=Spoilage
 PHI-SA-SPOIL-FREEZE=Freeze Spoilage
 PHI-SA-ROCKET-CAPACITY=Rocket Capacity
 PHI-SA-QUALITY=Quality Chance
+PHI-SA-QUALITY-TIER=Quality Tier Reduction
 
 PHI-GM=Game Mode
 
diff --git a/PHI-CL/locale/ja/locale.cfg b/PHI-CL/locale/ja/locale.cfg
index 8da7ca1..c6536b2 100644
--- a/PHI-CL/locale/ja/locale.cfg
+++ b/PHI-CL/locale/ja/locale.cfg
@@ -60,6 +60,7 @@ PHI-SA-SPOIL=変質
 PHI-SA-SPOIL-FREEZE=変質凍結
 PHI-SA-ROCKET-CAPACITY=ロケット容量
 PHI-SA-QUALITY=品質確率
+PHI-SA-QUALITY-TIER=品質レベルの減少
 
 PHI-GM=ゲームモード
 
diff --git a/PHI-CL/locale/zh-CN/locale.cfg b/PHI-CL/locale/zh-CN/locale.cfg
index 40450a6..b22b3ba 100644
--- a/PHI-CL/locale/zh-CN/locale.cfg
+++ b/PHI-CL/locale/zh-CN/locale.cfg
@@ -60,6 +60,7 @@ PHI-SA-SPOIL=變質
 PHI-SA-SPOIL-FREEZE=變質凍結
 PHI-SA-ROCKET-CAPACITY=火箭容量
 PHI-SA-QUALITY=品質概率
+PHI-SA-QUALITY-TIER=品質等級減少
 
 PHI-GM=遊戲模式
 
diff --git a/PHI-CL/locale/zh-TW/locale.cfg b/PHI-CL/locale/zh-TW/locale.cfg
index 40450a6..b22b3ba 100644
--- a/PHI-CL/locale/zh-TW/locale.cfg
+++ b/PHI-CL/locale/zh-TW/locale.cfg
@@ -60,6 +60,7 @@ PHI-SA-SPOIL=變質
 PHI-SA-SPOIL-FREEZE=變質凍結
 PHI-SA-ROCKET-CAPACITY=火箭容量
 PHI-SA-QUALITY=品質概率
+PHI-SA-QUALITY-TIER=品質等級減少
 
 PHI-GM=遊戲模式
 
diff --git a/PHI-CL/settings.lua b/PHI-CL/settings.lua
index 4f1eb2a..8090479 100644
--- a/PHI-CL/settings.lua
+++ b/PHI-CL/settings.lua
@@ -147,6 +147,14 @@ data:extend({
   localised_name = {'phi-cl.setting-class-color', 'SA4', {'phi-cl.ratio'}, {'mod-setting-name.PHI-SA-QUALITY'}},
   localised_description = (mods['quality'] and {'', '[item=quality-module-3] x 0.1', {'phi-cl.setting-change-color', '\n[3] C3'}}) or nil,
   order = 'C04'
+}, {
+  type = 'bool-setting',
+  name = 'PHI-SA-QUALITY-TIER',
+  setting_type = 'startup',
+  default_value = false,
+  localised_name = {'phi-cl.setting-class-color', 'SA5', {'phi-cl.enable'}, {'mod-setting-name.PHI-SA-QUALITY-TIER'}},
+  localised_description = (mods['quality'] and {'', '[virtual-signal=signal-deny] [quality=uncommon][quality=epic]', {'phi-cl.setting-change-color', '\n[8] C5 H3'}}) or nil,
+  order = 'C05'
 }, {
   type = 'string-setting',
   name = 'PHI-GM',