From 5fc7d1ce46cdfd57628ccb56062aa53f9c843558 Mon Sep 17 00:00:00 2001
From: yairm210 <yairm210@hotmail.com>
Date: Sun, 19 Sep 2021 21:18:56 +0300
Subject: [PATCH] Gain free building uniqueType'D

---
 core/src/com/unciv/logic/city/CityInfo.kt                | 2 +-
 .../unciv/models/ruleset/unique/UniqueParameterType.kt   | 9 +++++++++
 core/src/com/unciv/models/ruleset/unique/UniqueType.kt   | 2 +-
 3 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/core/src/com/unciv/logic/city/CityInfo.kt b/core/src/com/unciv/logic/city/CityInfo.kt
index 71e4723a62..ccff711db6 100644
--- a/core/src/com/unciv/logic/city/CityInfo.kt
+++ b/core/src/com/unciv/logic/city/CityInfo.kt
@@ -160,7 +160,7 @@ class CityInfo {
 
         civInfo.civConstructions.tryAddFreeBuildings()
 
-        for (unique in getMatchingUniques("Gain a free [] []")) {
+        for (unique in getMatchingUniques(UniqueType.GainFreeBuildings)) {
             val freeBuildingName = unique.params[0]
             if (matchesFilter(unique.params[1])) {
                 if (!cityConstructions.isBuilt(freeBuildingName))
diff --git a/core/src/com/unciv/models/ruleset/unique/UniqueParameterType.kt b/core/src/com/unciv/models/ruleset/unique/UniqueParameterType.kt
index a19aad38fb..b649f1acd4 100644
--- a/core/src/com/unciv/models/ruleset/unique/UniqueParameterType.kt
+++ b/core/src/com/unciv/models/ruleset/unique/UniqueParameterType.kt
@@ -53,6 +53,15 @@ enum class UniqueParameterType(val parameterName:String) {
             return null
         }
     },
+    BuildingName("buildingName") {
+        override fun getErrorSeverity(
+            parameterText: String,
+            ruleset: Ruleset
+        ): UniqueType.UniqueComplianceErrorSeverity? {
+            if (ruleset.buildings.containsKey(parameterText)) return null
+            return UniqueType.UniqueComplianceErrorSeverity.RulesetSpecific
+        }
+    },
     Unknown("param") {
         override fun getErrorSeverity(parameterText: String, ruleset: Ruleset):
                 UniqueType.UniqueComplianceErrorSeverity? {
diff --git a/core/src/com/unciv/models/ruleset/unique/UniqueType.kt b/core/src/com/unciv/models/ruleset/unique/UniqueType.kt
index a760726e70..8d90ea34b0 100644
--- a/core/src/com/unciv/models/ruleset/unique/UniqueType.kt
+++ b/core/src/com/unciv/models/ruleset/unique/UniqueType.kt
@@ -27,7 +27,7 @@ enum class UniqueType(val text:String, val replacedBy: UniqueType? = null) {
     DecreasedUnitMaintenanceCostsGlobally("-[amount]% unit upkeep costs", UnitMaintenanceDiscount), // No conditional support
     @Deprecated("As of 3.16.16", ReplaceWith("Stats <>"))
     StatBonusForNumberOfSpecialists("[stats] if this city has at least [amount] specialists"), // No conditional support
-    
+    GainFreeBuildings("Gain a free [buildingName] [cityFilter]"),
     
     CityStateStatsPerTurn("Provides [stats] per turn"), // Should not be Happiness!
     CityStateStatsPerCity("Provides [stats] [cityFilter]"),