Add Temperature Offset Slider (#7891)

* Add slider
Align spawnIce latitude and offset code to applyHumidityAndTemperature

* A bunch of debug code
Make default Water Level -0.05 for Default

* Remove debug println
Fix Desert at 0.9-1.0 temp and <0.2 humidity

* Disable reseed for debug comparison
Reset Plains/Grassland for high temp. Adjust max humidity for safety of Grasslands
Humidity debugger
Better slider

* Remove all debug code

* Undo Desert temp setting

android/assets/jsons/Civ V - Gods & Kings/Terrains.json

@@ -28,9 +28,9 @@
             "Occurs at temperature between [0.1] and [0.2] and humidity between [0.3] and [0.4]",
             "Occurs at temperature between [-0.5] and [0.5] and humidity between [0.6] and [0.8]",
             "Occurs at temperature between [-0.5] and [1] and humidity between [0.9] and [1]",
-			    "Occurs at temperature between [0.9] and [1] and humidity between [0.2] and [0.9]",
-			    "Occurs at temperature between [0.8] and [0.9] and humidity between [0.6] and [0.9]",
-			    "Occurs at temperature between [0.7] and [0.8] and humidity between [0.7] and [0.9]",
+            "Occurs at temperature between [0.9] and [1] and humidity between [0.2] and [1]",
+            "Occurs at temperature between [0.8] and [0.9] and humidity between [0.6] and [1]",
+            "Occurs at temperature between [0.7] and [0.8] and humidity between [0.7] and [1]",
             "Occurs at temperature between [0.6] and [0.8] and humidity between [0.4] and [0.6]",
             "[+3] to Fertility for Map Generation",
             "A Region is formed with at least [30]% [Grassland] tiles, with priority [7]",
@@ -55,7 +55,6 @@
             "Occurs at temperature between [0.4] and [0.5] and humidity between [0.5] and [0.6]",
             "Occurs at temperature between [-0.6] and [0.7] and humidity between [0.8] and [0.9]",
             "Occurs at temperature between [-0.6] and [-0.5] and humidity between [0.9] and [1]",
-			    "Occurs at temperature between [0.5] and [0.7] and humidity between [0.7] and [0.8]",
             "Occurs at temperature between [0.9] and [1] and humidity between [0] and [0.2]",
             "Occurs at temperature between [0.8] and [0.9] and humidity between [0.2] and [0.6]",
             "Occurs at temperature between [0.7] and [0.8] and humidity between [0.3] and [0.4]",
@@ -134,7 +133,8 @@
 		"type": "Land",
 		"movementCost": 1,
 		"RGB": [231, 242, 249],
-		"uniques": ["Occurs at temperature between [-1] and [-0.9] and humidity between [0] and [1]",
+		"uniques": [
+            "Occurs at temperature between [-1] and [-0.9] and humidity between [0] and [1]",
             "Occurs at temperature between [-0.9] and [-0.8] and humidity between [0] and [0.8]",
             "Occurs at temperature between [-0.8] and [-0.7] and humidity between [0] and [0.6]",
             "Occurs at temperature between [-0.7] and [-0.6] and humidity between [0] and [0.4]",

android/assets/jsons/Civ V - Vanilla/Terrains.json

@@ -28,9 +28,9 @@
 			"Occurs at temperature between [0.1] and [0.2] and humidity between [0.3] and [0.4]",
 			"Occurs at temperature between [-0.5] and [0.5] and humidity between [0.6] and [0.8]",
 			"Occurs at temperature between [-0.5] and [1] and humidity between [0.9] and [1]",
-			"Occurs at temperature between [0.9] and [1] and humidity between [0.2] and [0.9]",
-			"Occurs at temperature between [0.8] and [0.9] and humidity between [0.6] and [0.9]",
-			"Occurs at temperature between [0.7] and [0.8] and humidity between [0.7] and [0.9]",
+			"Occurs at temperature between [0.9] and [1] and humidity between [0.2] and [1]",
+			"Occurs at temperature between [0.8] and [0.9] and humidity between [0.6] and [1]",
+			"Occurs at temperature between [0.7] and [0.8] and humidity between [0.7] and [1]",
 			"Occurs at temperature between [0.6] and [0.8] and humidity between [0.4] and [0.6]",
 			"[+3] to Fertility for Map Generation",
 			"A Region is formed with at least [30]% [Grassland] tiles, with priority [7]",
@@ -55,7 +55,6 @@
 			"Occurs at temperature between [0.4] and [0.5] and humidity between [0.5] and [0.6]",
 			"Occurs at temperature between [-0.6] and [0.7] and humidity between [0.8] and [0.9]",
 			"Occurs at temperature between [-0.6] and [-0.5] and humidity between [0.9] and [1]",
-			"Occurs at temperature between [0.5] and [0.7] and humidity between [0.7] and [0.8]",
 			"Occurs at temperature between [0.9] and [1] and humidity between [0] and [0.2]",
 			"Occurs at temperature between [0.8] and [0.9] and humidity between [0.2] and [0.6]",
 			"Occurs at temperature between [0.7] and [0.8] and humidity between [0.3] and [0.4]",

core/src/com/unciv/logic/map/MapParameters.kt

@@ -180,9 +180,7 @@ class MapParameters : IsPartOfGameInfoSerialization {
     var resourceRichness = 0.1f
     var waterThreshold = 0.0f
 
-    /** Shifts temperature (after random, latitude and temperatureExtremeness).
-     *  For seasonal main menu background only, not user-accessible, thus transient and not cloned. */
-    @Transient
+    /** Shifts temperature (after random, latitude and temperatureExtremeness).*/
     var temperatureShift = 0f
 
     fun clone() = MapParameters().also {
@@ -201,6 +199,7 @@ class MapParameters : IsPartOfGameInfoSerialization {
         it.maxCoastExtension = maxCoastExtension
         it.elevationExponent = elevationExponent
         it.temperatureExtremeness = temperatureExtremeness
+        it.temperatureShift = temperatureShift
         it.vegetationRichness = vegetationRichness
         it.rareFeaturesRichness = rareFeaturesRichness
         it.resourceRichness = resourceRichness
@@ -218,6 +217,7 @@ class MapParameters : IsPartOfGameInfoSerialization {
         maxCoastExtension = 2
         elevationExponent = 0.7f
         temperatureExtremeness = 0.6f
+        temperatureShift = 0.0f
         vegetationRichness = 0.4f
         rareFeaturesRichness = 0.05f
         resourceRichness = 0.1f

core/src/com/unciv/logic/map/mapgenerator/MapGenerator.kt

@@ -484,7 +484,7 @@ class MapGenerator(val ruleset: Ruleset) {
         val scale = tileMap.mapParameters.tilesPerBiomeArea.toDouble()
         val temperatureExtremeness = tileMap.mapParameters.temperatureExtremeness
         val temperatureShift = tileMap.mapParameters.temperatureShift
-        val humidityShift = if (temperatureShift > 0) -temperatureShift else 0f
+        val humidityShift = if (temperatureShift > 0) -temperatureShift / 2 else 0f
 
         // List is OK here as it's only sequentially scanned
         val limitsMap: List<TerrainOccursRange> =
@@ -608,6 +608,7 @@ class MapGenerator(val ruleset: Ruleset) {
             val latitudeTemperature = 1.0 - 2.0 * abs(tile.latitude) / tileMap.maxLatitude
             var temperature = ((latitudeTemperature + randomTemperature) / 2.0)
             temperature = abs(temperature).pow(1.0 - tileMap.mapParameters.temperatureExtremeness) * temperature.sign
+            temperature = (temperature + tileMap.mapParameters.temperatureShift).coerceIn(-1.0..1.0)
 
             val candidates = iceEquivalents
                 .filter {
@@ -631,6 +632,8 @@ class MapGenerationRandomness {
 
     /**
      * Generates a perlin noise channel combining multiple octaves
+     * Default settings generate mostly within [-0.55, 0.55], but clustered around 0.0
+     * About 28% are < -0.1 and 28% are > 0.1
      *
      * @param tile Source for x / x coordinates.
      * @param seed Misnomer: actually the z value the Perlin cloud is 'cut' on.

core/src/com/unciv/logic/map/mapgenerator/MapLandmassGenerator.kt

@@ -203,7 +203,7 @@ class MapLandmassGenerator(val ruleset: Ruleset, val randomness: MapGenerationRa
         waterThreshold = 0.545 + 1.75 * waterThreshold
 
         for (tile in tileMap.values) {
-            spawnLandOrWater(tile, randomness.RNG.nextDouble())
+            spawnLandOrWater(tile, randomness.RNG.nextDouble())  // RNG is [0.0, 1.0]
             tile.setTransients()
         }
 

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

@@ -13,6 +13,7 @@ private object MapGeneratorStepsHelpers {
     }
     val applyHumidityAndTemperature = fun(newParameters: MapParameters, actualParameters: MapParameters) {
         actualParameters.temperatureExtremeness = newParameters.temperatureExtremeness
+        actualParameters.temperatureShift = newParameters.temperatureShift
     }
     val applyLakesAndCoast = fun(newParameters: MapParameters, actualParameters: MapParameters) {
         actualParameters.maxCoastExtension = newParameters.maxCoastExtension

core/src/com/unciv/ui/newgamescreen/MapParametersTable.kt

@@ -276,12 +276,23 @@ class MapParametersTable(
             return slider
         }
 
+        fun addSlider(text: String, getValue:()->Float, min: Float, max: Float, step: Float, onChange: (value: Float)->Unit): UncivSlider {
+            val slider = UncivSlider(min, max, step, onChange = onChange, initial = getValue())
+            table.add(text.toLabel()).left()
+            table.add(slider).fillX().row()
+            advancedSliders[slider] = getValue
+            return slider
+        }
+
         addSlider("Map Elevation", {mapParameters.elevationExponent}, 0.6f, 0.8f)
         { mapParameters.elevationExponent = it }
 
         addSlider("Temperature extremeness", {mapParameters.temperatureExtremeness}, 0.4f, 0.8f)
         { mapParameters.temperatureExtremeness = it }
 
+        addSlider("Temperature shift", {mapParameters.temperatureShift}, -0.4f, 0.4f, 0.1f)
+        { mapParameters.temperatureShift = it }
+
         addSlider("Resource richness", {mapParameters.resourceRichness},0f, 0.5f)
         { mapParameters.resourceRichness = it }