parallax (sky looks bluer when you go up)

src/net/torvald/terrarum/Terrarum.kt

@@ -400,18 +400,18 @@ object Terrarum : Game() {
 
 
 
-        //ingame = Ingame(batch)
+        ingame = Ingame(batch)
         //ingame!!.gameLoadInfoPayload = Ingame.NewWorldParameters(8192, 2048, HQRNG().nextLong())
 
         // TODO: create world being used by title screen, and serialise it.
-        //ingame!!.gameLoadInfoPayload = Ingame.NewWorldParameters(2400, 800, HQRNG().nextLong())
-        //ingame!!.gameLoadMode = Ingame.GameLoadMode.CREATE_NEW
+        ingame!!.gameLoadInfoPayload = Ingame.NewWorldParameters(2400, 800, HQRNG().nextLong())
+        ingame!!.gameLoadMode = Ingame.GameLoadMode.CREATE_NEW
 
 
-        //LoadScreen.screenToLoad = ingame!!
+        LoadScreen.screenToLoad = ingame!!
 
-        super.setScreen(TitleScreen(batch))
-        //super.setScreen(LoadScreen)
+        //super.setScreen(TitleScreen(batch))
+        super.setScreen(LoadScreen)
 
         //super.setScreen(ingame)
     }

src/net/torvald/terrarum/TitleScreen.kt

@@ -79,7 +79,7 @@ class TitleScreen(val batch: SpriteBatch) : Screen {
         )
         cameraPlayer.hitbox.setDimension(2.0, 2.0)
 
-        demoWorld.time.timeDelta = 45
+        demoWorld.time.timeDelta = 60
 
 
         LightmapRenderer.world = demoWorld

src/net/torvald/terrarum/ui/UIStartMenu.kt

@@ -12,6 +12,7 @@ class UIStartMenu : UICanvas() {
                 "MENU_MODE_SINGLEPLAYER",
                 "MENU_OPTIONS",
                 "MENU_MODULES",
+                "MENU_LABEL_LANGUAGE",
                 "MENU_LABEL_EXIT"
         )
 
@@ -34,6 +35,8 @@ class UIStartMenu : UICanvas() {
             readFromLang = true,
             activeBackCol = Color(0),
             highlightBackCol = Color(0),
+            backgroundCol = Color(0),
+            inactiveCol = Color.WHITE,
             defaultSelection = null
     )
 

src/net/torvald/terrarum/weather/WeatherMixer.kt

@@ -2,6 +2,7 @@ package net.torvald.terrarum.weather
 
 import com.badlogic.gdx.Input
 import com.badlogic.gdx.graphics.*
+import javafx.scene.effect.Light
 import net.torvald.terrarum.utils.JsonFetcher
 import net.torvald.colourutil.*
 import net.torvald.random.HQRNG
@@ -11,6 +12,10 @@ import net.torvald.terrarum.gameactors.ParticleTestRain
 import net.torvald.terrarum.gamecontroller.KeyToggler
 import net.torvald.terrarum.gameworld.GameWorld
 import net.torvald.terrarum.gameworld.WorldTime
+import net.torvald.terrarum.worlddrawer.FeaturesDrawer
+import net.torvald.terrarum.worlddrawer.LightmapRenderer
+import net.torvald.terrarum.worlddrawer.WorldCamera
+import net.torvald.terrarum.worldgenerator.WorldGenerator
 import java.io.File
 import java.util.*
 
@@ -89,6 +94,9 @@ object WeatherMixer {
 
     }
 
+    private val parallaxZeroPos = WorldGenerator.TERRAIN_AVERAGE_HEIGHT// + WorldGenerator.TERRAIN_UNDULATION.div(2)
+    private val parallaxDomainSize = WorldGenerator.TERRAIN_UNDULATION / 2f
+
     fun render(camera: Camera, world: GameWorld) {
 
         // we will not care for nextSkybox for now
@@ -100,16 +108,33 @@ object WeatherMixer {
         globalLightNow.set(globalLight)
 
 
+        /* (copied from the shader source)
+         UV mapping coord.y
+
+         -+ <- 1.0  =
+         D|         = // parallax of +1
+         i|  =      =
+         s|  = // parallax of 0
+         p|  =      =
+         .|         = // parallax of -1
+         -+ <- 0.0  =
+         */
+        val parallax: Float = (parallaxZeroPos - WorldCamera.gdxCamY.div(FeaturesDrawer.TILE_SIZE.toFloat())) / parallaxDomainSize
+
+
         // draw skybox to provided graphics instance
         val topCol = getGradientColour(skyboxColourMap, 0, timeNow)
         val bottomCol = getGradientColour(skyboxColourMap, 1, timeNow)
 
+        println("zero pos: $parallaxZeroPos, domain_size: $parallaxDomainSize")
+
         //Terrarum.textureWhiteSquare.bind(0)
 
         Terrarum.shaderBayerSkyboxFill.begin()
         Terrarum.shaderBayerSkyboxFill.setUniformMatrix("u_projTrans", camera.combined)
         Terrarum.shaderBayerSkyboxFill.setUniformf("topColor", topCol.r, topCol.g, topCol.b)
         Terrarum.shaderBayerSkyboxFill.setUniformf("bottomColor", bottomCol.r, bottomCol.g, bottomCol.b)
+        Terrarum.shaderBayerSkyboxFill.setUniformf("parallax", parallax)
         Terrarum.fullscreenQuad.render(Terrarum.shaderBayerSkyboxFill, GL20.GL_TRIANGLES)
         Terrarum.shaderBayerSkyboxFill.end()
     }

src/net/torvald/terrarum/worldgenerator/WorldGenerator.kt

@@ -39,16 +39,16 @@ object WorldGenerator {
     private val NOISE_SIMPLEX_ORE_START = 1.42
     private val NOISE_SIMPLEX_ORE_END = 1.28
 
-    private val TERRAIN_UNDULATION = 200
+    val TERRAIN_UNDULATION = 200
 
-    private val SIMPLEXGEN_LARGEST_FEATURE = 200
+    val SIMPLEXGEN_LARGEST_FEATURE = 200
 
-    private var OCEAN_WIDTH = 400
-    private var SHORE_WIDTH = 120
-    private val MAX_OCEAN_DEPTH = 200
+    var OCEAN_WIDTH = 400
+    var SHORE_WIDTH = 120
+    val MAX_OCEAN_DEPTH = 200
 
-    private var GLACIER_MOUNTAIN_WIDTH = 900
-    private val GLACIER_MOUNTAIN_HEIGHT = 300
+    var GLACIER_MOUNTAIN_WIDTH = 900
+    val GLACIER_MOUNTAIN_HEIGHT = 300
 
     private val CAVEGEN_THRE_START = 0.4
     private val CAVEGEN_THRE_END = 0.1