From 094f72dd26b2c138b4ac6c36835178b107b86b41 Mon Sep 17 00:00:00 2001
From: JackRainy <JackRainy@users.noreply.github.com>
Date: Wed, 19 Feb 2020 08:25:35 +0200
Subject: [PATCH] The Future Tech can't be picked as a free technology until
 requirements are met (#1967)

---
 core/src/com/unciv/ui/pickerscreens/TechPickerScreen.kt | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/core/src/com/unciv/ui/pickerscreens/TechPickerScreen.kt b/core/src/com/unciv/ui/pickerscreens/TechPickerScreen.kt
index de48722c..18551870 100644
--- a/core/src/com/unciv/ui/pickerscreens/TechPickerScreen.kt
+++ b/core/src/com/unciv/ui/pickerscreens/TechPickerScreen.kt
@@ -227,7 +227,8 @@ class TechPickerScreen(internal val civInfo: CivilizationInfo, centerOnTech: Tec
 
 
     private fun selectTechnologyForFreeTech(tech: Technology) {
-        if (researchableTechs.contains(tech.name) || tech.name==Constants.futureTech) {
+        if (researchableTechs.contains(tech.name) ||
+                (tech.name==Constants.futureTech && civTech.canBeResearched(tech.name))) {
             pick("Pick [${selectedTech!!.name}] as free tech".tr())
         } else {
             rightSideButton.setText("Pick a free tech".tr())