Added a growth progress bar to CityButton. (#1626)

* Added temporary growth number to CityButton.

* Added a growth bar to CityButton.

* Made relevant changes based on comments in pull request #1626

* Added the unicode infinity symbol to reflect no growth.

* New growth functions now return null instead of -1.

* Adjusted the population group width to account for large numbers.

* Changed the colour of the growth number.

core/src/com/unciv/logic/city/CityInfo.kt

@@ -19,6 +19,8 @@ import com.unciv.models.ruleset.tile.ResourceSupplyList
 import com.unciv.models.ruleset.tile.ResourceType
 import com.unciv.models.stats.Stats
 import com.unciv.ui.utils.withoutItem
+import kotlin.math.ceil
+import kotlin.math.floor
 import kotlin.math.min
 import kotlin.math.roundToInt
 
@@ -192,6 +194,35 @@ class CityInfo {
         return 0
     }
 
+    fun isGrowing(): Boolean {
+        return cityStats.currentCityStats.food > 0 && cityConstructions.currentConstruction != Constants.settler
+    }
+
+    fun isStarving(): Boolean {
+        return cityStats.currentCityStats.food < 0
+    }
+
+    /** Take null to mean infinity. */
+    fun getNumTurnsToNewPopulation(): Int? {
+        if (isGrowing()) {
+            var turnsToGrowth = ceil((population.getFoodToNextPopulation() - population.foodStored)
+                    / cityStats.currentCityStats.food).toInt()
+            if (turnsToGrowth < 1) turnsToGrowth = 1
+            return turnsToGrowth
+        }
+
+        return null
+    }
+
+    /** Take null to mean infinity. */
+    fun getNumTurnsToStarvation(): Int? {
+        if (isStarving()) {
+            return floor(population.foodStored / -cityStats.currentCityStats.food).toInt() + 1
+        }
+
+        return null
+    }
+
     fun getBuildingUniques(): Sequence<String> = cityConstructions.getBuiltBuildings().flatMap { it.uniques.asSequence() }
     fun containsBuildingUnique(unique:String) = cityConstructions.getBuiltBuildings().any { it.uniques.contains(unique) }
 

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

@@ -133,18 +133,14 @@ class CityScreen(internal val city: CityInfo) : CameraStageBaseScreen() {
                 skin)).colspan(columns).row()
 
         val turnsToPopString : String
-        if (city.cityStats.currentCityStats.food > 0) {
-            if (city.cityConstructions.currentConstruction == Constants.settler) {
-                turnsToPopString = "Food converts to production".tr()
-            } else {
-                var turnsToPopulation = ceil((city.population.getFoodToNextPopulation()-city.population.foodStored)
-                        / city.cityStats.currentCityStats.food).toInt()
-                if (turnsToPopulation < 1) turnsToPopulation = 1
-                turnsToPopString = "[$turnsToPopulation] turns to new population".tr()
-            }
-        } else if (city.cityStats.currentCityStats.food < 0) {
-            val turnsToStarvation = floor(city.population.foodStored / -city.cityStats.currentCityStats.food).toInt() + 1
+        if (city.isGrowing()) {
+            var turnsToGrowth = city.getNumTurnsToNewPopulation()
+            turnsToPopString = "[$turnsToGrowth] turns to new population".tr()
+        } else if (city.isStarving()) {
+            var turnsToStarvation = city.getNumTurnsToStarvation()
             turnsToPopString = "[$turnsToStarvation] turns to lose population".tr()
+        } else if (city.cityConstructions.currentConstruction == Constants.settler) {
+            turnsToPopString = "Food converts to production".tr()
         } else {
             turnsToPopString = "Stopped population growth".tr()
         }

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

@@ -5,6 +5,7 @@ import com.badlogic.gdx.math.Interpolation
 import com.badlogic.gdx.scenes.scene2d.Group
 import com.badlogic.gdx.scenes.scene2d.Touchable
 import com.badlogic.gdx.scenes.scene2d.actions.Actions
+import com.badlogic.gdx.scenes.scene2d.ui.Label
 import com.badlogic.gdx.scenes.scene2d.ui.Skin
 import com.badlogic.gdx.scenes.scene2d.ui.Table
 import com.badlogic.gdx.utils.Align
@@ -124,7 +125,10 @@ class CityButton(val city: CityInfo, internal val tileGroup: WorldTileGroup, ski
             iconTable.add(connectionImage).size(20f).pad(2f).padLeft(5f)
         }
 
-        val cityButtonText = city.population.population.toString() + " | " + city.name
+        iconTable.add(getPopulationGroup(UncivGame.Current.viewEntireMapForDebug || belongsToViewingCiv()))
+                .padLeft(10f)
+
+        val cityButtonText = city.name
         val label = cityButtonText.toLabel(secondaryColor)
         iconTable.add(label).pad(10f) // sufficient horizontal padding
                 .fillY() // provide full-height clicking area
@@ -155,6 +159,72 @@ class CityButton(val city: CityInfo, internal val tileGroup: WorldTileGroup, ski
         parent.addAction(floatAction)
     }
 
+    private fun getPopulationGroup(showGrowth: Boolean): Group {
+        val growthGreen = Color(0.0f, 0.5f, 0.0f, 1.0f)
+
+        val group = Group()
+
+        val populationLabel = city.population.population.toString().toLabel()
+        populationLabel.color = city.civInfo.nation.getInnerColor()
+
+        group.addActor(populationLabel)
+
+        val groupHeight = 25f
+        var groupWidth = populationLabel.width
+        if (showGrowth) groupWidth += 20f
+        group.setSize(groupWidth, groupHeight)
+
+        if (showGrowth) {
+            var growthPercentage = city.population.foodStored / city.population.getFoodToNextPopulation().toFloat()
+            if (growthPercentage < 0) growthPercentage = 0.0f
+
+            val growthBar = ImageGetter.getProgressBarVertical(2f, groupHeight,
+                    if (city.isStarving()) 1.0f else growthPercentage,
+                    if (city.isStarving()) Color.RED else growthGreen, Color.BLACK)
+            growthBar.x = populationLabel.width + 3
+            growthBar.centerY(group)
+
+            group.addActor(growthBar)
+
+            val turnLabel : Label
+            if (city.isGrowing()) {
+                val turnsToGrowth = city.getNumTurnsToNewPopulation()
+                if (turnsToGrowth != null) {
+                    if (turnsToGrowth < 100) {
+                        turnLabel = turnsToGrowth.toString().toLabel()
+                    } else {
+                        turnLabel = "∞".toLabel()
+                    }
+                } else {
+                    turnLabel = "∞".toLabel()
+                }
+            } else if (city.isStarving()) {
+                val turnsToStarvation = city.getNumTurnsToStarvation()
+                if (turnsToStarvation != null) {
+                    if (turnsToStarvation < 100) {
+                        turnLabel = turnsToStarvation.toString().toLabel()
+                    } else {
+                        turnLabel = "∞".toLabel()
+                    }
+                } else {
+                    turnLabel = "∞".toLabel()
+                }
+            } else {
+                turnLabel = "∞".toLabel()
+            }
+            turnLabel.color = city.civInfo.nation.getInnerColor()
+            turnLabel.setFontSize(14)
+            turnLabel.pack()
+
+            group.addActor(turnLabel)
+            turnLabel.x = growthBar.x + growthBar.width + 1
+        }
+
+        populationLabel.centerY(group)
+
+        return group
+    }
+
     private fun getConstructionGroup(cityConstructions: CityConstructions): Group {
         val group= Group()
         val groupHeight = 25f

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

@@ -24,7 +24,7 @@ class Fonts {
                 "ÀÄĂÂĎÊĚÉÈÍÎŁĹĽÔÓÖƠŘŔŚŤƯŮÚÜÝŻŹäâąďêęěłĺľńňñôöơřŕśťưůýżźáèìíóûú" +
                 "กขฃคฅฆงจฉชซฌญฎฏฐฑฒณดตถทธนบปผฝพฟภมยรฤลฦวศษสหฬอฮฯะัาำิีึืฺุู฿เแโใไๅๆ็่้๊๋์ํ๎๏๐๑๒๓๔๕๖๗๘๙๚๛" +  // Thai
                 "1234567890" +
-                "‘?’'“!”(%)[#]{@}/&\\<-+÷×=>®©\$€£¥¢:;,.¡*|«»—"
+                "‘?’'“!”(%)[#]{@}/&\\<-+÷×=>®©\$€£¥¢:;,.¡*|«»—∞"
         val charSet = HashSet<Char>()
         charSet.addAll(defaultText.asIterable())