Recycling center

android/assets/jsons/Civ V - Gods & Kings/Buildings.json

@@ -1049,6 +1049,12 @@
 		"requiredTech": "Ecology",
 		"uniques": ["Must be next to [Desert]", "Cannot be built with [Nuclear Plant]"]
 	},
+	{
+		"name": "Recycling Center",
+		"maintenance": 3,
+		"requiredTech": "Ecology",
+		"uniques": ["Provides [2] [Aluminum]","Can have [5] of this building in your empire at most"]
+	},
 	{
 		"name": "Sydney Opera House",
 		"isWonder": true,

core/src/com/unciv/logic/city/CityInfo.kt

@@ -332,7 +332,7 @@ class CityInfo {
                 cityResources.add(resource, -amount, "Buildings")
             }
         }
-        
+
         for (unique in getLocalMatchingUniques(UniqueType.ProvidesResources)) { // E.G "Provides [1] [Iron]"
             if (!unique.conditionalsApply(civInfo, this)) continue
             val resource = getRuleset().tileResources[unique.params[1]]

core/src/com/unciv/logic/city/IConstruction.kt

@@ -120,7 +120,8 @@ class RejectionReasons: HashSet<RejectionReason>() {
             RejectionReason.RequiresBuildingInSomeCity,
             RejectionReason.PopulationRequirement,
             RejectionReason.ConsumesResources,
-            RejectionReason.CanOnlyBePurchased
+            RejectionReason.CanOnlyBePurchased,
+            RejectionReason.MaxNumberBuilding
         )
     }
 } 
@@ -142,6 +143,7 @@ enum class RejectionReason(val shouldShow: Boolean, var errorMessage: String) {
     MustOwnTile(false, "Must own a specific tile close by"),
     WaterUnitsInCoastalCities(false, "May only built water units in coastal cities"),
     CanOnlyBeBuiltInSpecificCities(false, "Can only be built in specific cities"),
+    MaxNumberBuilding(true, "Maximum number being built"),
 
     UniqueToOtherNation(false, "Unique to another nation"),
     ReplacedByOurUnique(false, "Our unique replaces this"),

core/src/com/unciv/models/ruleset/Building.kt

@@ -454,6 +454,12 @@ class Building : RulesetStatsObject(), INonPerpetualConstruction {
     override fun shouldBeDisplayed(cityConstructions: CityConstructions): Boolean {
         if (cityConstructions.isBeingConstructedOrEnqueued(name))
             return false
+        if (hasUnique(UniqueType.MaxNumberBuilding)) {
+            for (unique in getMatchingUniques(UniqueType.MaxNumberBuilding)){
+                if (cityConstructions.cityInfo.civInfo.cities.count{it.cityConstructions.containsBuildingOrEquivalent(name)}>=unique.params[0].toInt())
+                    return false
+            }
+        }
         val rejectionReasons = getRejectionReasons(cityConstructions)
         return rejectionReasons.none { !it.shouldShow }
             || (
@@ -539,6 +545,15 @@ class Building : RulesetStatsObject(), INonPerpetualConstruction {
                 UniqueType.HiddenWithoutReligion.text ->
                     if (!civInfo.gameInfo.isReligionEnabled())
                         rejectionReasons.add(RejectionReason.DisabledBySetting)
+
+                UniqueType.MaxNumberBuilding.placeholderText ->
+                    if (civInfo.cities.count {
+                                it.cityConstructions.containsBuildingOrEquivalent(name) ||
+                                        it.cityConstructions.isBeingConstructedOrEnqueued(name)
+                            }
+                            >= unique.params[0].toInt()) {
+                        rejectionReasons.add(RejectionReason.MaxNumberBuilding)
+                }
             }
         }
 

core/src/com/unciv/models/ruleset/unique/UniqueType.kt

@@ -210,6 +210,7 @@ enum class UniqueType(val text:String, vararg targets: UniqueTarget, val flags:
     CostIncreasesPerCity("Cost increases by [amount] per owned city", UniqueTarget.Building),
     CannotBeBuiltWith("Cannot be built with [buildingName]", UniqueTarget.Building),
     RequiresAnotherBuilding("Requires a [buildingName] in this city", UniqueTarget.Building),
+    MaxNumberBuilding("Can have [amount] of this building in your empire at most", UniqueTarget.Building),
 
     NotDisplayedWithout("Not displayed as an available construction without [buildingName/tech/resource/policy]", UniqueTarget.Building, UniqueTarget.Unit),
     //UniqueType added in 3.18.4

docs/Credits.md

@@ -325,6 +325,7 @@ Unless otherwise specified, all the following are from [the Noun Project](https:
 * [Chemistry](https://thenounproject.com/term/chemistry/175847/) By Creative Stall for Medical Lab
 * [Pentagon](https://thenounproject.com/search/?q=the%20pentagon&i=1788323) By Maxim Kulikov
 * [Solar panel](https://thenounproject.com/term/solar-panel/1131/) By Modik for Solar Plant
+* [Recycle](https://thenounproject.com/search/?q=recycling&i=4397434) By Umer Younas, PK for Recycling Center 
 * [Opera House Sydney](https://thenounproject.com/term/opera-house-sydney/1626283/) By Pham Duy Phuong Hung for Sydney Opera House
 * [Water dam](https://thenounproject.com/term/water-dam/1002726/) By Symbolon for Hydro Plant
 * [Manhattan Project](https://thenounproject.com/search/?q=Nuclear%20Bomb&i=2041074) By corpus delicti, GR