From 2d1e55a4d4f4a2d52047e618f934a0766a8bf1f7 Mon Sep 17 00:00:00 2001
From: PLynx <pawelrys2011@gmail.com>
Date: Sun, 3 Mar 2024 19:03:12 +0100
Subject: [PATCH] Add MovedToNewCapital buiding unique (#11213)

* Added MovedToNewCapital building unique

Yet to be tested

* Applied the suggestions

Of @yairm210 and @SomeTroglodyte
---
 .../com/unciv/logic/civilization/Civilization.kt | 16 ++++++++++++++++
 .../unciv/models/ruleset/unique/UniqueType.kt    |  1 +
 docs/Modders/uniques.md                          |  3 +++
 3 files changed, 20 insertions(+)

diff --git a/core/src/com/unciv/logic/civilization/Civilization.kt b/core/src/com/unciv/logic/civilization/Civilization.kt
index e9ebe6583c..a78d12614b 100644
--- a/core/src/com/unciv/logic/civilization/Civilization.kt
+++ b/core/src/com/unciv/logic/civilization/Civilization.kt
@@ -866,6 +866,22 @@ class Civilization : IsPartOfGameInfoSerialization {
             // move new capital
             city.cityConstructions.addBuilding(city.capitalCityIndicator())
             city.isBeingRazed = false // stop razing the new capital if it was being razed
+
+            // move the buildings with MovedToNewCapital unique
+            if (oldCapital != null) {
+                // Get the Set of the buildings to move
+                val buildingsToMove = oldCapital.cityConstructions.getBuiltBuildings().filter {
+                    it.hasUnique(UniqueType.MovesToNewCapital)
+                }.toSet()
+
+                // Remove the buildings from old capital
+                oldCapital.cityConstructions.removeBuildings(buildingsToMove)
+
+                // Add the buildings to new capital
+                buildingsToMove.forEach {
+                    city.cityConstructions.addBuilding(it)
+                }
+            }
         }
         oldCapital?.cityConstructions?.removeBuilding(oldCapital.capitalCityIndicator())
     }
diff --git a/core/src/com/unciv/models/ruleset/unique/UniqueType.kt b/core/src/com/unciv/models/ruleset/unique/UniqueType.kt
index 6e305a70ec..66f450c1ab 100644
--- a/core/src/com/unciv/models/ruleset/unique/UniqueType.kt
+++ b/core/src/com/unciv/models/ruleset/unique/UniqueType.kt
@@ -305,6 +305,7 @@ enum class UniqueType(
     Unsellable("Unsellable", UniqueTarget.Building),
     ObsoleteWith("Obsolete with [tech]", UniqueTarget.Building, UniqueTarget.Resource, UniqueTarget.Improvement),
     IndicatesCapital("Indicates the capital city", UniqueTarget.Building),
+    MovesToNewCapital("Moves to new capital when capital changes", UniqueTarget.Building),
     ProvidesExtraLuxuryFromCityResources("Provides 1 extra copy of each improved luxury resource near this City", UniqueTarget.Building),
 
     DestroyedWhenCityCaptured("Destroyed when the city is captured", UniqueTarget.Building),
diff --git a/docs/Modders/uniques.md b/docs/Modders/uniques.md
index 48914f1375..313517e77a 100644
--- a/docs/Modders/uniques.md
+++ b/docs/Modders/uniques.md
@@ -1126,6 +1126,9 @@ Simple unique parameters are explained by mouseover. Complex parameters are expl
 ??? example  "Indicates the capital city"
 	Applicable to: Building
 
+??? example  "Moved to the new capital"
+	Applicable to: Building
+
 ??? example  "Provides 1 extra copy of each improved luxury resource near this City"
 	Applicable to: Building