Resolved #453 - Allow copy-pasting maps as text in map editor

core/src/com/unciv/ui/mapeditor/MapEditorOptionsTable.kt

@@ -1,10 +1,13 @@
 package com.unciv.ui.mapeditor
 
+import com.badlogic.gdx.Gdx
 import com.badlogic.gdx.scenes.scene2d.ui.TextButton
 import com.badlogic.gdx.scenes.scene2d.ui.TextField
+import com.badlogic.gdx.utils.Json
 import com.unciv.UnCivGame
 import com.unciv.logic.GameSaver
 import com.unciv.models.gamebasics.tr
+import com.unciv.ui.saves.Gzip
 import com.unciv.ui.utils.CameraStageBaseScreen
 import com.unciv.ui.utils.onClick
 import com.unciv.ui.worldscreen.optionstable.PopupTable
@@ -22,6 +25,14 @@ class MapEditorOptionsTable(mapEditorScreen: MapEditorScreen): PopupTable(mapEdi
         }
         add(saveMapButton).row()
 
+        val copyMapAsTextButton = TextButton("Copy to clipboard".tr(), CameraStageBaseScreen.skin)
+        copyMapAsTextButton.onClick {
+            val json = Json().toJson(mapEditorScreen.tileMap)
+            val base64Gzip = Gzip.zip(json)
+            Gdx.app.clipboard.contents =  base64Gzip
+        }
+        add(copyMapAsTextButton).row()
+
         val loadMapButton = TextButton("Load".tr(), CameraStageBaseScreen.skin)
         loadMapButton.onClick { MapScreenLoadTable(mapEditorScreen); remove() }
         add(loadMapButton).row()

core/src/com/unciv/ui/mapeditor/MapEditorScreen.kt

@@ -22,7 +22,7 @@ import com.unciv.ui.utils.center
 import com.unciv.ui.utils.onClick
 import com.unciv.ui.worldscreen.TileGroupMap
 
-class MapEditorScreen(var mapToLoad:String?=null): CameraStageBaseScreen(){
+class MapEditorScreen(): CameraStageBaseScreen(){
     var clearTerrainFeature=false
     var selectedTerrain : Terrain?=null
     var clearResource=false
@@ -56,17 +56,27 @@ class MapEditorScreen(var mapToLoad:String?=null): CameraStageBaseScreen(){
         return group
     }
 
-    init{
+    constructor(mapNameToLoad:String?):this(){
+        var mapToLoad = mapNameToLoad
         if (mapToLoad == null) {
             val existingSaves = GameSaver().getMaps()
             if(existingSaves.isNotEmpty())
                 mapToLoad = existingSaves.first()
         }
         if(mapToLoad!=null){
-            mapName=mapToLoad!!
+            mapName=mapToLoad
             tileMap=GameSaver().loadMap(mapName)
-            tileMap.setTransients()
         }
+        initialize()
+    }
+
+    constructor(map: TileMap):this(){
+        tileMap = map
+        initialize()
+    }
+
+    fun initialize(){
+        tileMap.setTransients()
         val mapHolder = getMapHolder(tileMap)
 
         stage.addActor(mapHolder)

core/src/com/unciv/ui/mapeditor/MapScreenLoadTable.kt

@@ -1,11 +1,15 @@
 package com.unciv.ui.mapeditor
 
+import com.badlogic.gdx.Gdx
 import com.badlogic.gdx.scenes.scene2d.ui.SelectBox
 import com.badlogic.gdx.scenes.scene2d.ui.TextButton
 import com.badlogic.gdx.utils.Array
+import com.badlogic.gdx.utils.Json
 import com.unciv.UnCivGame
 import com.unciv.logic.GameSaver
+import com.unciv.logic.map.TileMap
 import com.unciv.models.gamebasics.tr
+import com.unciv.ui.saves.Gzip
 import com.unciv.ui.utils.CameraStageBaseScreen
 import com.unciv.ui.utils.onClick
 import com.unciv.ui.worldscreen.optionstable.PopupTable
@@ -24,6 +28,15 @@ class MapScreenLoadTable(mapEditorScreen: MapEditorScreen): PopupTable(mapEditor
         }
         add(loadMapButton).row()
 
+        val loadFromClipboardButton = TextButton("Load copied data".tr(), CameraStageBaseScreen.skin)
+        loadFromClipboardButton .onClick {
+            val clipboardContentsString = Gdx.app.clipboard.contents.trim()
+            val decoded = Gzip.unzip(clipboardContentsString)
+            val loadedMap = Json().fromJson(TileMap::class.java, decoded)
+            UnCivGame.Current.screen = MapEditorScreen(loadedMap)
+        }
+        add(loadFromClipboardButton).row()
+
         val closeOptionsButtton = TextButton("Close".tr(), CameraStageBaseScreen.skin)
         closeOptionsButtton.onClick { remove() }
         add(closeOptionsButtton).row()

core/src/com/unciv/ui/worldscreen/optionstable/WorldScreenOptionsTable.kt

@@ -15,7 +15,7 @@ class WorldScreenOptionsTable(val worldScreen: WorldScreen) : PopupTable(worldSc
 
     init {
         addButton("Map editor".tr()){
-            UnCivGame.Current.screen = MapEditorScreen()
+            UnCivGame.Current.screen = MapEditorScreen(null)
             remove()
         }