Should be able to add key shortcuts in any screen now :)

core/src/com/unciv/logic/civilization/Notification.kt

@@ -11,7 +11,7 @@ import com.unciv.ui.worldscreen.WorldScreen
  * [action] is not realized as lambda, as it would be too easy to introduce references to objects
  * there that should not be serialized to the saved game.
  */
-open class Notification(
+open class Notification (
         // default parameters necessary for json deserialization
         var text: String = "",
         var color: Color = Color.BLACK,

core/src/com/unciv/models/metadata/GameSettings.kt

@@ -12,7 +12,7 @@ class GameSettings {
     var checkForDueUnits: Boolean = true
     var singleTapMove: Boolean = false
     var language: String = "English"
-    var resolution: String = "900x600"
+    var resolution: String = "900x600" // Aut-detecting resolution was a BAD IDEA since it needs to be based on DPI AND resolution.
     var tutorialsShown = HashSet<String>()
     var tutorialTasksCompleted = HashSet<String>()
     var hasCrashedRecently = false

core/src/com/unciv/ui/utils/CameraStageBaseScreen.kt

@@ -20,6 +20,7 @@ import com.unciv.models.Tutorial
 import com.unciv.models.UncivSound
 import com.unciv.models.translations.tr
 import com.unciv.ui.tutorials.TutorialController
+import java.util.HashMap
 import kotlin.concurrent.thread
 import kotlin.random.Random
 
@@ -30,18 +31,32 @@ open class CameraStageBaseScreen : Screen {
 
     protected val tutorialController by lazy { TutorialController(this) }
 
+    // An initialized val always turned out to illegally be null...
+    var keyPressDispatcher: HashMap<Char, (() -> Unit)>
+
     init {
-        val width:Float
+        keyPressDispatcher = hashMapOf()
-        val height:Float
-        if(game.settings.resolution=="Auto") { // Aut-detecting resolution was a BAD IDEA since it needs to be based on DPI AND resolution.
-            game.settings.resolution = "900x600"
-            game.settings.save()
-        }
         val resolutions: List<Float> = game.settings.resolution.split("x").map { it.toInt().toFloat() }
-        width = resolutions[0]
+        val width = resolutions[0]
-        height = resolutions[1]
+        val height = resolutions[1]
 
         stage = Stage(ExtendViewport(width, height), batch)
+
+
+        stage.addListener(
+                object : InputListener() {
+                    override fun keyTyped(event: InputEvent?, character: Char): Boolean {
+                        if (character.toLowerCase() in keyPressDispatcher && !hasOpenPopups()) {
+                            //try-catch mainly for debugging. Breakpoints in the vicinity can make the event fire twice in rapid succession, second time the context can be invalid
+                            try {
+                                keyPressDispatcher[character.toLowerCase()]?.invoke()
+                            } catch (ex: Exception) {}
+                            return true
+                        }
+                        return super.keyTyped(event, character)
+                    }
+                }
+        )
     }
 
     override fun show() {}
@@ -66,7 +81,7 @@ open class CameraStageBaseScreen : Screen {
 
     override fun dispose() {}
 
-    fun displayTutorial( tutorial: Tutorial, test: (()->Boolean)? = null ) {
+    fun displayTutorial(tutorial: Tutorial, test: (() -> Boolean)? = null) {
         if (!game.settings.showTutorials) return
         if (game.settings.tutorialsShown.contains(tutorial.name)) return
         if (test != null && !test()) return
@@ -95,7 +110,7 @@ open class CameraStageBaseScreen : Screen {
     }
 
     /** It returns the assigned [InputListener] */
-    fun onBackButtonClicked(action:()->Unit): InputListener {
+    fun onBackButtonClicked(action: () -> Unit): InputListener {
         val listener = object : InputListener() {
             override fun keyDown(event: InputEvent?, keycode: Int): Boolean {
                 if (keycode == Input.Keys.BACK || keycode == Input.Keys.ESCAPE) {

core/src/com/unciv/ui/worldscreen/WorldScreen.kt

@@ -70,8 +70,6 @@ class WorldScreen(val viewingCiv:CivilizationInfo) : CameraStageBaseScreen() {
 
     private var backButtonListener : InputListener
 
-    // An initialized val always turned out to illegally be null...
-    lateinit var keyPressDispatcher: HashMap<Char, (() -> Unit)>
 
 
     init {
@@ -226,19 +224,9 @@ class WorldScreen(val viewingCiv:CivilizationInfo) : CameraStageBaseScreen() {
                     }
                     return true
                 }
-
-                override fun keyTyped(event: InputEvent?, character: Char): Boolean {
-                    if (character.toLowerCase() in keyPressDispatcher && !hasOpenPopups()) {
-                        //try-catch mainly for debugging. Breakpoints in the vicinity can make the event fire twice in rapid succession, second time the context can be invalid
-                        try {
-                            keyPressDispatcher[character.toLowerCase()]?.invoke()
-                        } catch (ex: Exception) {}
-                        return true
-                    }
-                    return super.keyTyped(event, character)
-                }
             }
         )
+
     }
 
     private fun loadLatestMultiplayerState(){
@@ -488,7 +476,6 @@ class WorldScreen(val viewingCiv:CivilizationInfo) : CameraStageBaseScreen() {
         nextTurnButton.labelCell.pad(10f)
         val nextTurnActionWrapped = { nextTurnAction() }
         nextTurnButton.onClick (nextTurnActionWrapped)
-        if (!::keyPressDispatcher.isInitialized) keyPressDispatcher = hashMapOf()
         keyPressDispatcher[' '] = nextTurnActionWrapped
         keyPressDispatcher['n'] = nextTurnActionWrapped