More performance

- Shoved TextureRegionDrawables into a hashmap for faster searching and more unified access (not everyone has to create a Drawable for the Region now)
- getLanguages() now does the minimum amount of work without saving intermediates

Unified ImageGetter.getTableBackground()  (helper, not performance)

core/src/com/unciv/models/gamebasics/Translations.kt

@@ -42,7 +42,11 @@ class Translations : HashMap<String, TranslationEntry>(){
 
     fun getLanguages(): List<String> {
         val toReturn =  mutableListOf<String>()
-        toReturn.addAll(values.flatMap { it.keys }.distinct())
+
+        for(value in values)
+            for(key in keys)
+                if(!toReturn.contains(key)) toReturn.add(key)
+
         toReturn.remove("Japanese") // These were for tests but were never actually seriously translated
         toReturn.remove("Thai")
         return toReturn

core/src/com/unciv/ui/EmpireOverviewScreen.kt

@@ -404,24 +404,25 @@ class EmpireOverviewScreen : CameraStageBaseScreen(){
     companion object {
         fun getCivGroup(civ: CivilizationInfo, afterCivNameText:String,currentPlayer:CivilizationInfo): Table {
             val civGroup = Table()
-            val civGroupBackground = ImageGetter.getDrawable("OtherIcons/civTableBackground")
 
             var labelText = civ.civName.tr()+afterCivNameText
             var labelColor=Color.WHITE
+            val backgroundColor:Color
 
             if (civ.isDefeated()) {
                 civGroup.add(ImageGetter.getImage("OtherIcons/DisbandUnit")).size(30f)
-                civGroup.background = civGroupBackground.tint(Color.LIGHT_GRAY)
+                backgroundColor = Color.LIGHT_GRAY
                 labelColor = Color.BLACK
             } else if (currentPlayer==civ || UnCivGame.Current.viewEntireMapForDebug || currentPlayer.knows(civ)) {
                 civGroup.add(ImageGetter.getNationIndicator(civ.nation, 30f))
-                civGroup.background = civGroupBackground.tint(civ.nation.getOuterColor())
+                backgroundColor = civ.nation.getOuterColor()
                 labelColor = civ.nation.getInnerColor()
             } else {
-                civGroup.background = civGroupBackground.tint(Color.DARK_GRAY)
+                backgroundColor = Color.DARK_GRAY
                 labelText = "???"
             }
 
+            civGroup.background = ImageGetter.getTableBackground(backgroundColor)
             val label = labelText.toLabel(labelColor)
             label.setAlignment(Align.center)
 

core/src/com/unciv/ui/cityscreen/CityScreenCityPickerTable.kt

@@ -1,10 +1,15 @@
 package com.unciv.ui.cityscreen
 
 import com.badlogic.gdx.graphics.Color
-import com.badlogic.gdx.scenes.scene2d.ui.*
+import com.badlogic.gdx.scenes.scene2d.ui.Table
+import com.badlogic.gdx.scenes.scene2d.ui.TextButton
+import com.badlogic.gdx.scenes.scene2d.ui.TextField
 import com.badlogic.gdx.utils.Align
 import com.unciv.models.gamebasics.tr
-import com.unciv.ui.utils.*
+import com.unciv.ui.utils.CameraStageBaseScreen
+import com.unciv.ui.utils.ImageGetter
+import com.unciv.ui.utils.onClick
+import com.unciv.ui.utils.toLabel
 import com.unciv.ui.worldscreen.optionstable.PopupTable
 
 class CityScreenCityPickerTable(val cityScreen: CityScreen) : Table(){
@@ -31,12 +36,12 @@ class CityScreenCityPickerTable(val cityScreen: CityScreen) : Table(){
         }
 
         if(city.isCapital()){
-            val starImage = Image(ImageGetter.getDrawable("OtherIcons/Star").tint(Color.LIGHT_GRAY))
+            val starImage = ImageGetter.getImage("OtherIcons/Star").apply { color= Color.LIGHT_GRAY }
             cityNameTable.add(starImage).size(20f).padRight(5f)
         }
 
         if(city.isPuppet){
-            val starImage = Image(ImageGetter.getDrawable("OtherIcons/Puppet").tint(Color.LIGHT_GRAY))
+            val starImage = ImageGetter.getImage("OtherIcons/Puppet").apply { color= Color.LIGHT_GRAY }
             cityNameTable.add(starImage).size(20f).padRight(5f)
         }
 

core/src/com/unciv/ui/pickerscreens/TechButton.kt

@@ -17,7 +17,7 @@ class TechButton(techName:String, val techManager: TechManager, isWorldScreen: B
     init {
         touchable = Touchable.enabled
         defaults().pad(10f)
-        background = ImageGetter.getDrawable("OtherIcons/civTableBackground")
+        background = ImageGetter.getTableBackground()
         if (ImageGetter.techIconExists(techName))
             add(ImageGetter.getTechIconGroup(techName, 60f))
 

core/src/com/unciv/ui/tilegroups/CityButton.kt

@@ -47,8 +47,7 @@ class CityButton(val city: CityInfo, internal val tileGroup: WorldTileGroup, ski
         if (tileGroup.tileInfo.airUnits.isEmpty()) return
         val secondarycolor = city.civInfo.nation.getInnerColor()
         val airUnitTable = Table().apply { defaults().pad(5f) }
-        airUnitTable.background = ImageGetter.getDrawable("OtherIcons/civTableBackground")
-                .tint(city.civInfo.nation.getOuterColor())
+        airUnitTable.background = ImageGetter.getTableBackground(city.civInfo.nation.getOuterColor())
         val aircraftImage = ImageGetter.getImage("OtherIcons/Aircraft")
         aircraftImage.color = secondarycolor
         airUnitTable.add(aircraftImage).size(15f)
@@ -93,8 +92,7 @@ class CityButton(val city: CityInfo, internal val tileGroup: WorldTileGroup, ski
         val secondaryColor = city.civInfo.nation.getInnerColor()
         val iconTable = Table()
         iconTable.touchable=Touchable.enabled
-        iconTable.background = ImageGetter.getDrawable("OtherIcons/civTableBackground")
-                .tint(city.civInfo.nation.getOuterColor())
+        iconTable.background = ImageGetter.getTableBackground(city.civInfo.nation.getOuterColor())
 
         if (city.resistanceCounter > 0) {
             val resistanceImage = ImageGetter.getImage("StatIcons/Resistance")

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

@@ -24,6 +24,29 @@ object ImageGetter {
     // So, we now use TexturePacker in the DesktopLauncher class to pack all the different images into single images,
     // and the atlas is what tells us what was packed where.
     var atlas = TextureAtlas("game.atlas")
+
+    // We then shove all the drawables into a hashmap, because the atlas specifically tells us
+    //   that the search on it is inefficient
+    val textureRegionDrawables = HashMap<String,TextureRegionDrawable>()
+
+    init{
+        setTextureRegionDrawables()
+    }
+
+    fun setTextureRegionDrawables(){
+        textureRegionDrawables.clear()
+        for(region in atlas.regions){
+            val drawable =TextureRegionDrawable(region)
+            textureRegionDrawables[region.name] = drawable
+        }
+    }
+
+    fun refreshAltas() {
+        atlas.dispose() // To avoid OutOfMemory exceptions
+        atlas = TextureAtlas("game.atlas")
+        setTextureRegionDrawables()
+    }
+
     fun getWhiteDot() =  getImage(whiteDotLocation)
     fun getDot(dotColor: Color) = getWhiteDot().apply { color = dotColor}
 
@@ -32,29 +55,24 @@ object ImageGetter {
     }
 
     fun getImage(fileName: String): Image {
-        return Image(getTextureRegion(fileName))
+        return Image(getDrawable(fileName))
     }
 
-    fun getDrawable(fileName: String): TextureRegionDrawable {
-        val drawable = TextureRegionDrawable(getTextureRegion(fileName))
-        drawable.minHeight = 0f
-        drawable.minWidth = 0f
-        return drawable
+    private fun getDrawable(fileName: String): TextureRegionDrawable {
+        if(textureRegionDrawables.containsKey(fileName)) return textureRegionDrawables[fileName]!!
+        else return textureRegionDrawables[whiteDotLocation]!!
     }
 
-    private fun getTextureRegion(fileName: String): TextureRegion {
-        try {
-            val region = atlas.findRegion(fileName)
-
-            if(region==null)
-                throw Exception("Could not find $fileName")
-            return region
-        } catch (ex: Exception) {
-            return getTextureRegion(whiteDotLocation)
-        }
+    fun getTableBackground(tintColor: Color?=null): Drawable? {
+        val drawable = getDrawable("OtherIcons/civTableBackground")
+        drawable.minHeight=0f
+        drawable.minWidth=0f
+        if(tintColor==null) return drawable
+        return drawable.tint(tintColor)
     }
 
-    fun imageExists(fileName:String) = atlas.findRegion(fileName)!=null
+
+    fun imageExists(fileName:String) = textureRegionDrawables.containsKey(fileName)
     fun techIconExists(techName:String) = imageExists("TechIcons/$techName")
 
     fun getStatIcon(statName: String): Image {
@@ -153,10 +171,6 @@ object ImageGetter {
         return getDrawable(whiteDotLocation).tint(color)
     }
 
-    fun refreshAltas() {
-        atlas.dispose() // To avoid OutOfMemory exceptions
-        atlas = TextureAtlas("game.atlas")
-    }
 
     fun getResourceImage(resourceName: String, size:Float): Actor {
         val iconGroup = getImage("ResourceIcons/$resourceName").surroundWithCircle(size)

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

@@ -35,7 +35,7 @@ class NotificationsScroll(internal val worldScreen: WorldScreen) : ScrollPane(nu
 
             listItem.add(ImageGetter.getCircle()
                     .apply { color=notification.color }).size(10f).pad(5f)
-            listItem.background(ImageGetter.getDrawable("OtherIcons/civTableBackground"))
+            listItem.background = ImageGetter.getTableBackground()
             listItem.add(label).pad(5f).padRight(10f)
 
             // using a large click area with no gap in between each message item.

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

@@ -260,8 +260,7 @@ class WorldScreen(val viewingCiv:CivilizationInfo) : CameraStageBaseScreen() {
 
         if (viewingCiv.tech.currentTechnology() == null) {
             val buttonPic = Table()
-            buttonPic.background = ImageGetter.getDrawable("OtherIcons/civTableBackground")
-                    .tint(colorFromRGB(7, 46, 43))
+            buttonPic.background = ImageGetter.getTableBackground(colorFromRGB(7, 46, 43))
             buttonPic.defaults().pad(20f)
             buttonPic.add("{Pick a tech}!".toLabel(Color.WHITE,30))
             techButtonHolder.add(buttonPic)