From a930ad6360bd5d82b7187a6e8eb093f360e82f1b Mon Sep 17 00:00:00 2001
From: Yair Morgenstern <yairm210@hotmail.com>
Date: Fri, 21 Aug 2020 14:16:05 +0300
Subject: [PATCH] MapGen doesn't place ancient ruins if they're not defined in
 the current ruleset

---
 core/src/com/unciv/logic/map/mapgenerator/MapGenerator.kt | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/core/src/com/unciv/logic/map/mapgenerator/MapGenerator.kt b/core/src/com/unciv/logic/map/mapgenerator/MapGenerator.kt
index 07120383ff..6c4a74bed9 100644
--- a/core/src/com/unciv/logic/map/mapgenerator/MapGenerator.kt
+++ b/core/src/com/unciv/logic/map/mapgenerator/MapGenerator.kt
@@ -102,12 +102,12 @@ class MapGenerator(val ruleset: Ruleset) {
     }
 
     private fun spreadAncientRuins(map: TileMap) {
-        if(map.mapParameters.noRuins)
+        if (map.mapParameters.noRuins || !ruleset.tileImprovements.containsKey(Constants.ancientRuins))
             return
         val suitableTiles = map.values.filter { it.isLand && !it.isImpassible() }
-        val locations = randomness.chooseSpreadOutLocations(suitableTiles.size/100,
+        val locations = randomness.chooseSpreadOutLocations(suitableTiles.size / 100,
                 suitableTiles, 10)
-        for(tile in locations)
+        for (tile in locations)
             tile.improvement = Constants.ancientRuins
     }