inventory gamemenu visual only

src/net/torvald/terrarum/Terrarum.kt

@@ -246,6 +246,7 @@ object Terrarum : Screen {
                 RunningEnvironment.PC
             }
         //}
+
     }
 
 
@@ -689,6 +690,7 @@ fun Double.roundInt(): Int = Math.round(this).toInt()
 fun Float.roundInt(): Int = Math.round(this)
 fun Double.abs() = Math.abs(this)
 fun Double.sqr() = this * this
+fun Float.sqr() = this * this
 fun Double.sqrt() = Math.sqrt(this)
 fun Float.sqrt() = FastMath.sqrt(this)
 fun Int.abs() = this.absoluteValue

src/net/torvald/terrarum/UIItemInventoryCatBar.kt

@@ -6,7 +6,9 @@ import com.badlogic.gdx.graphics.Pixmap
 import com.badlogic.gdx.graphics.Texture
 import com.badlogic.gdx.graphics.g2d.SpriteBatch
 import net.torvald.terrarum.modulebasegame.ui.UIInventoryFull
-import net.torvald.terrarum.ui.*
+import net.torvald.terrarum.ui.UIItem
+import net.torvald.terrarum.ui.UIItemImageButton
+import net.torvald.terrarum.ui.UIUtils
 
 /**
  * Created by minjaesong on 2017-10-20.
@@ -18,6 +20,12 @@ class UIItemInventoryCatBar(
         override val width: Int
 ) : UIItem(parentUI) {
 
+    // deal with the moving position
+    override var oldPosX = posX
+    override var oldPosY = posY
+
+    private val parentInventory = parentUI
+
     private val catIcons = parentUI.catIcons
     private val catArrangement = parentUI.catArrangement
 
@@ -91,7 +99,7 @@ class UIItemInventoryCatBar(
     private val underlineColour = Color(0xeaeaea_40.toInt())
     private val underlineHighlightColour = mainButtons[0].highlightCol
 
-    private var highlighterXPos = mainButtons[selectedIndex].posX.toDouble()
+    private var highlighterXPos = mainButtons[selectedIndex].posX.toFloat()
     private var highlighterXStart = highlighterXPos
     private var highlighterXEnd = highlighterXPos
 
@@ -100,6 +108,14 @@ class UIItemInventoryCatBar(
     private val highlighterMoveDuration: Second = 0.1f
     private var highlighterMoveTimer: Second = 0f
 
+    private var transitionFired = false
+
+    /**
+     * 0: map, 1: inventory caticons, 2: menu
+     */
+    var selectedPanel = 1
+        private set
+
     // set up underlined indicator
     init {
         // procedurally generate texture
@@ -134,8 +150,8 @@ class UIItemInventoryCatBar(
             highlighterXPos = UIUtils.moveQuick(
                     highlighterXStart,
                     highlighterXEnd,
-                    highlighterMoveTimer.toDouble(),
+                    highlighterMoveTimer,
-                    highlighterMoveDuration.toDouble()
+                    highlighterMoveDuration
             )
 
             if (highlighterMoveTimer > highlighterMoveDuration) {
@@ -150,23 +166,61 @@ class UIItemInventoryCatBar(
         mainButtons.forEachIndexed { index, btn ->
             btn.update(delta)
 
+            if (btn.mousePushed && selectedPanel != 1) {
+                transitionFired = true
+                selectedPanel = 1
+            }
 
             if (btn.mousePushed && index != selectedIndex) {
+                // normal stuffs
                 val oldIndex = selectedIndex
 
-                highlighterXStart = mainButtons[selectedIndex].posX.toDouble() // using old selectedIndex
+                highlighterXStart = mainButtons[selectedIndex].posX.toFloat() // using old selectedIndex
                 selectedIndex = index
                 highlighterMoving = true
-                highlighterXEnd = mainButtons[selectedIndex].posX.toDouble() // using new selectedIndex
+                highlighterXEnd = mainButtons[selectedIndex].posX.toFloat() // using new selectedIndex
 
                 selectionChangeListener?.invoke(oldIndex, index)
             }
-            btn.highlighted = (index == selectedIndex) // forcibly highlight if this.highlighted != null
 
+            if (selectedPanel == 1) {
+                btn.highlighted = (index == selectedIndex) // forcibly highlight if this.highlighted != null
+
+                sideButtons[0].highlighted = false
+                sideButtons[3].highlighted = false
+            }
         }
 
         sideButtons[0].update(delta)
         sideButtons[3].update(delta)
+
+
+        // more transition stuffs
+        if (sideButtons[0].mousePushed) {
+            if (selectedPanel != 0) transitionFired = true
+            mainButtons.forEach { it.highlighted = false }
+            selectedPanel = 0
+            parentInventory.requestTransition(0)
+
+            sideButtons[0].highlighted = true
+            sideButtons[3].highlighted = false
+        }
+        else if (sideButtons[3].mousePushed) {
+            if (selectedPanel != 2) transitionFired = true
+            mainButtons.forEach { it.highlighted = false }
+            selectedPanel = 2
+            parentInventory.requestTransition(2)
+            transitionFired = true
+
+            sideButtons[0].highlighted = false
+            sideButtons[3].highlighted = true
+        }
+
+
+        if (transitionFired) {
+            transitionFired = false
+            parentInventory.requestTransition(2 - selectedPanel)
+        }
     }
 
     override fun render(batch: SpriteBatch, camera: Camera) {
@@ -186,8 +240,12 @@ class UIItemInventoryCatBar(
         batch.drawStraightLine(posX.toFloat(), posY + height - 1f, posX + width.toFloat(), 1f, false)
 
         // indicator
-        batch.color = underlineHighlightColour
+        if (selectedPanel == 1) {
-        batch.draw(underlineIndTex, (highlighterXPos - buttonGapSize / 2).toFloat().round(), posY + highlighterYPos)
+            batch.color = underlineHighlightColour
+            batch.draw(underlineIndTex, (highlighterXPos - buttonGapSize / 2).toFloat().round(), posY + highlighterYPos)
+        }
+
+
     }
 
 

src/net/torvald/terrarum/UIItemInventoryElem.kt

@@ -36,6 +36,10 @@ class UIItemInventoryElem(
         val drawBackOnNull: Boolean = true
 ) : UIItemInventoryCellBase(parentUI, posX, posY, item, amount, itemImage, quickslot, equippedSlot) {
 
+    // deal with the moving position
+    override var oldPosX = posX
+    override var oldPosY = posY
+
     companion object {
         val height = 48
         val UNIQUE_ITEM_HAS_NO_AMOUNT = -1

src/net/torvald/terrarum/UIItemInventoryElemSimple.kt

@@ -33,6 +33,10 @@ class UIItemInventoryElemSimple(
         val drawBackOnNull: Boolean = true
 ) : UIItemInventoryCellBase(parentUI, posX, posY, item, amount, itemImage, quickslot, equippedSlot) {
 
+    // deal with the moving position
+    override var oldPosX = posX
+    override var oldPosY = posY
+
     companion object {
         val height = UIItemInventoryElem.height
     }

src/net/torvald/terrarum/modulebasegame/ui/UIInventoryFull.kt

@@ -6,7 +6,6 @@ import com.badlogic.gdx.graphics.Color
 import com.badlogic.gdx.graphics.GL20
 import com.badlogic.gdx.graphics.g2d.SpriteBatch
 import com.badlogic.gdx.graphics.glutils.ShapeRenderer
-import com.jme3.math.FastMath
 import net.torvald.terrarum.*
 import net.torvald.terrarum.gameactors.ActorWBMovable
 import net.torvald.terrarum.langpack.Lang
@@ -15,6 +14,8 @@ import net.torvald.terrarum.modulebasegame.gameactors.ActorInventory.Companion.C
 import net.torvald.terrarum.modulebasegame.gameactors.Pocketed
 import net.torvald.terrarum.ui.UICanvas
 import net.torvald.terrarum.ui.UIItem
+import net.torvald.terrarum.ui.UIItemTextButtonList
+import net.torvald.terrarum.ui.UIUtils
 import net.torvald.terrarumsansbitmap.gdx.TextureRegionPack
 
 /**
@@ -29,6 +30,8 @@ class UIInventoryFull(
         doNotWarnConstant: Boolean = false
 ) : UICanvas(toggleKeyLiteral, toggleButtonLiteral, customPositioning, doNotWarnConstant) {
 
+    private val debugvals = false
+    
     override var width: Int = Terrarum.WIDTH
     override var height: Int = Terrarum.HEIGHT
 
@@ -60,12 +63,12 @@ class UIInventoryFull(
         get() = if (AppLoader.environment == RunningEnvironment.PC)
             "${0xe031.toChar()} ${Lang["GAME_ACTION_CLOSE"]}"
         else
-            "${0xe031.toChar()} ${Lang["GAME_ACTION_CLOSE"]}$SP${0xe06b.toChar()} ${Lang["GAME_INVENTORY"]}"
+            "${0xe069.toChar()} ${Lang["GAME_ACTION_CLOSE"]}$SP${0xe06b.toChar()} ${Lang["GAME_INVENTORY"]}"
     val gameMenuControlHelp: String
         get() = if (AppLoader.environment == RunningEnvironment.PC)
             "${0xe031.toChar()} ${Lang["GAME_ACTION_CLOSE"]}"
         else
-            "${0xe031.toChar()} ${Lang["GAME_ACTION_CLOSE"]}$SP${0xe068.toChar()} ${Lang["GAME_INVENTORY"]}"
+            "${0xe069.toChar()} ${Lang["GAME_ACTION_CLOSE"]}$SP${0xe068.toChar()} ${Lang["GAME_INVENTORY"]}"
     val controlHelpHeight = Terrarum.fontGame.lineHeight
 
     private var encumbrancePerc = 0f
@@ -104,16 +107,35 @@ class UIInventoryFull(
                     internalWidth - UIItemInventoryEquippedView.WIDTH + (Terrarum.WIDTH - internalWidth) / 2,
                     109 + (Terrarum.HEIGHT - internalHeight) / 2
             )
+    private val gameMenuListWidth = 400
+    private val gameMenuListHeight = 40 * 5
+    private val gameMenuCharInfoHeight = 64 + 40 // no top margin, 40 bottom margin
+    private val gameMenuListTotalHeight = gameMenuListHeight + gameMenuCharInfoHeight
+    private val gameMenuButtons = UIItemTextButtonList(
+            this, arrayOf("MENU_LABEL_MAINMENU", "MENU_LABEL_DESKTOP", "MENU_OPTIONS_CONTROLS", "MENU_OPTIONS_SOUND", "MENU_LABEL_GRAPHICS"),
+            Terrarum.WIDTH + (Terrarum.WIDTH - gameMenuListWidth) / 2,
+            (itemList.height - gameMenuListTotalHeight) / 2 + itemList.posY + gameMenuCharInfoHeight,
+            gameMenuListWidth, gameMenuListHeight,
+            readFromLang = true,
+            textAreaWidth = gameMenuListWidth,
+            activeBackCol = Color(0),
+            highlightBackCol = Color(0),
+            backgroundCol = Color(0),
+            inactiveCol = Color.WHITE,
+            defaultSelection = null
+    )
 
+    private val SCREEN_MINIMAP = 2f
+    private val SCREEN_INVENTORY = 1f
+    private val SCREEN_MENU = 0f
 
-    private var currentScreen = 1f //
+    private var currentScreen = SCREEN_INVENTORY
     private var transitionRequested = false
+    private var transitionOngoing = false
+    private var transitionReqSource = SCREEN_INVENTORY
+    private var transitionReqTarget = SCREEN_INVENTORY
     private var transitionTimer = 0f
-    private val transitionLength = 0.5f
+    private val transitionLength = 0.333f
-
-    private val SCREEN_MINIMAP = 0
-    private val SCREEN_INVENTORY = 1
-    private val SCREEN_MENU = 2
 
 
     private val transitionalUpdateUIs = ArrayList<UIItem>()
@@ -151,6 +173,7 @@ class UIInventoryFull(
 
         addToTransitionalGroup(itemList)
         addToTransitionalGroup(equipped)
+        addToTransitionalGroup(gameMenuButtons)
     }
 
     private var offsetX = ((Terrarum.WIDTH - internalWidth)   / 2).toFloat()
@@ -165,8 +188,9 @@ class UIInventoryFull(
 
 
         categoryBar.update(delta)
-        itemList.update(delta)
+
-        equipped.update(delta)
+        transitionalUpdateUIs.forEach { it.update(delta) }
+
     }
 
     private val gradStartCol = Color(0x404040_60)
@@ -179,13 +203,41 @@ class UIInventoryFull(
     private var xEnd = (Terrarum.WIDTH + internalWidth).div(2).toFloat()
     private var yEnd = (Terrarum.HEIGHT + internalHeight).div(2).toFloat()
 
+    fun requestTransition(target: Int) {
+        if (!transitionOngoing) {
+            transitionRequested = true
+            transitionReqSource = currentScreen.round()
+            transitionReqTarget = target.toFloat()
+        }
+    }
+
     override fun renderUI(batch: SpriteBatch, camera: Camera) {
 
-        currentScreen = 1f + 0.1f * FastMath.sin(transitionTimer)
+        if (transitionRequested && !transitionOngoing) {
-        transitionTimer += Gdx.graphics.deltaTime
+            transitionRequested = false
+            transitionOngoing = true
+            transitionTimer = 0f
+        }
+
+        if (transitionOngoing) {
+            transitionTimer += Gdx.graphics.deltaTime
+
+            currentScreen = UIUtils.moveQuick(transitionReqSource, transitionReqTarget, transitionTimer, transitionLength)
+
+            if (transitionTimer > transitionLength) {
+                transitionOngoing = false
+                currentScreen = transitionReqTarget
+            }
+        }
+
+
 
         // update at render time
         updateTransitionalItems()
+        if (debugvals) {
+            batch.color = Color.WHITE
+            AppLoader.fontSmallNumbers.draw(batch, "screen:$currentScreen", 500f, 20f)
+        }
 
 
 
@@ -213,16 +265,83 @@ class UIInventoryFull(
         categoryBar.render(batch, camera)
 
 
-        renderScreenInventory(batch, camera)
+        if (currentScreen > 1f + epsilon) {
+            renderScreenMinimap(batch, camera)
+
+            if (debugvals) {
+                batch.color = Color.CORAL
+                AppLoader.fontSmallNumbers.draw(batch, "Map", 300f, 10f)
+            }
+        }
+
+        if (currentScreen in epsilon..2f - epsilon) {
+            renderScreenInventory(batch, camera)
+
+            if (debugvals) {
+                batch.color = Color.CHARTREUSE
+                AppLoader.fontSmallNumbers.draw(batch, "Inv", 350f, 10f)
+            }
+        }
+
+        if (currentScreen < 1f - epsilon) {
+            renderScreenGamemenu(batch, camera)
+
+            if (debugvals) {
+                batch.color = Color.SKY
+                AppLoader.fontSmallNumbers.draw(batch, "Men", 400f, 10f)
+            }
+        }
+
+        if (debugvals) {
+            batch.color = Color.WHITE
+            AppLoader.fontSmallNumbers.draw(batch, "inventoryScrOffX:$inventoryScrOffX", 500f, 10f)
+        }
+
+
     }
 
+    private val epsilon = 0.001f
+
     private val minimapScrOffX: Float
-        get() = (currentScreen + 1f) * Terrarum.WIDTH
+        get() = (currentScreen - 2f) * Terrarum.WIDTH
+    /**
+     * - 0 on inventory screen
+     * - +WIDTH on minimap screen
+     * - -WIDTH on gamemenu screen
+     */
     private val inventoryScrOffX: Float
         get() = (currentScreen - 1f) * Terrarum.WIDTH
     private val menuScrOffX: Float
         get() = (currentScreen) * Terrarum.WIDTH
 
+    private fun renderScreenMinimap(batch: SpriteBatch, camera: Camera) {
+        // control hints
+        blendNormal(batch)
+        batch.color = Color.WHITE
+        Terrarum.fontGame.draw(batch, minimapControlHelp, offsetX + minimapScrOffX, yEnd - 20)
+    }
+
+    private fun renderScreenGamemenu(batch: SpriteBatch, camera: Camera) {
+        // control hints
+        blendNormal(batch)
+        batch.color = Color.WHITE
+        Terrarum.fontGame.draw(batch, gameMenuControlHelp, offsetX + menuScrOffX, yEnd - 20)
+
+        // text buttons
+        gameMenuButtons.render(batch, camera)
+
+        // character info window
+
+        // !! DUMMY !!
+        batch.color = itemList.backColour
+        batch.fillRect(
+                ((Terrarum.WIDTH - 400) / 2) + menuScrOffX,
+                (itemList.height - gameMenuListTotalHeight) / 2 + itemList.posY.toFloat(),
+                gameMenuListWidth.toFloat(),
+                64f
+        )
+    }
+
     private fun renderScreenInventory(batch: SpriteBatch, camera: Camera) {
         itemList.render(batch, camera)
         equipped.render(batch, camera)

src/net/torvald/terrarum/modulebasegame/ui/UIItemInventoryDynamicList.kt

@@ -32,8 +32,14 @@ class UIItemInventoryDynamicList(
         override var posY: Int
 ) : UIItem(parentUI) {
 
-    override val width  = 496
+    // deal with the moving position
-    override val height = 384
+    override var oldPosX = posX
+    override var oldPosY = posY
+
+    override val width  = WIDTH
+    override val height = HEIGHT
+
+    val backColour = Color(0x404040_88)
 
     private val catArrangement = parentUI.catArrangement
 
@@ -94,7 +100,7 @@ class UIItemInventoryDynamicList(
                 itemImage = null,
                 mouseoverBackCol = Color(0x282828_ff),
                 mouseoverBackBlendMode = BlendMode.SCREEN,
-                backCol = Color(0x404040_88),
+                backCol = backColour,
                 backBlendMode = BlendMode.NORMAL,
                 drawBackOnNull = true,
                 inactiveTextCol = defaultTextColour
@@ -111,7 +117,7 @@ class UIItemInventoryDynamicList(
                 itemImage = null,
                 mouseoverBackCol = Color(0x282828_ff),
                 mouseoverBackBlendMode = BlendMode.SCREEN,
-                backCol = Color(0x404040_88),
+                backCol = backColour,
                 backBlendMode = BlendMode.NORMAL,
                 drawBackOnNull = true,
                 inactiveTextCol = defaultTextColour
@@ -165,9 +171,6 @@ class UIItemInventoryDynamicList(
             highlightable = false
     )
 
-    // deal with the moving position
-    private var oldPosX = posX
-
     fun scrollItemPage(relativeAmount: Int) {
         itemPage = if (itemPageCount == 0) 0 else (itemPage + relativeAmount).fmod(itemPageCount)
     }

src/net/torvald/terrarum/modulebasegame/ui/UIItemInventoryEquippedView.kt

@@ -63,7 +63,8 @@ class UIItemInventoryEquippedView(
     private val spriteDrawCol = Color(0xddddddff.toInt())
 
     // deal with the moving position
-    private var oldPosX = posX
+    override var oldPosX = posX
+    override var oldPosY = posY
 
     override fun render(batch: SpriteBatch, camera: Camera) {
         val posXDelta = posX - oldPosX

src/net/torvald/terrarum/modulebasegame/ui/UIItemModuleInfoCell.kt

@@ -18,6 +18,10 @@ class UIItemModuleInfoCell(
         override var posY: Int
 ) : UIItem(parent) {
 
+    // deal with the moving position
+    override var oldPosX = posX
+    override var oldPosY = posY
+
     override val height: Int = Terrarum.fontGame.lineHeight.toInt() * 2
 
     private val numberAreaWidth = Terrarum.fontSmallNumbers.W * 3 + 4

src/net/torvald/terrarum/modulebasegame/ui/UIItemSavegameInfoCell.kt

@@ -20,6 +20,10 @@ class UIItemSavegameInfoCell(
         override var posY: Int
 ) : UIItem(parent) {
 
+    // deal with the moving position
+    override var oldPosX = posX
+    override var oldPosY = posY
+
     override val height: Int = Terrarum.fontGame.lineHeight.toInt() * 2
 
     override fun render(batch: SpriteBatch, camera: Camera) {

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

@@ -44,6 +44,25 @@ abstract class UIItem(var parentUI: UICanvas) { // do not replace parentUI to UI
     abstract val width: Int
     abstract val height: Int
 
+    /** This variable is NOT updated on its own.
+     * ```
+     * val posXDelta = posX - oldPosX
+     * itemGrid.forEach { it.posX += posXDelta }
+     * ...
+     * oldPosX = posX
+     * ```
+     */
+    protected abstract var oldPosX: Int
+    /** This variable is NOT updated on its own.
+     * ```
+     * val posYDelta = posY - oldPosY
+     * itemGrid.forEach { it.posY += posYDelta }
+     * ...
+     * oldPosY = posY
+     * ```
+     */
+    protected abstract var oldPosY: Int
+
     /** Position of mouse relative to this item */
     protected val relativeMouseX: Int
         get() = (Terrarum.mouseScreenX - (parentUI.posX) - this.posX)

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

@@ -35,6 +35,10 @@ open class UIItemImageButton(
         var highlightable: Boolean
 ) : UIItem(parent) {
 
+    // deal with the moving position
+    override var oldPosX = posX
+    override var oldPosY = posY
+
     var highlighted = false
 
     override fun render(batch: SpriteBatch, camera: Camera) {

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

@@ -20,6 +20,10 @@ class UIItemImageGallery(
         val column: Int = 1
 ) : UIItem(parentUI) {
 
+    // deal with the moving position
+    override var oldPosX = posX
+    override var oldPosY = posY
+
     override fun update(delta: Float) {
     }
 

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

@@ -67,6 +67,10 @@ class UIItemIntSlider(
     )
 
 
+    // deal with the moving position
+    override var oldPosX = posX
+    override var oldPosY = posY
+
     var value = initValue
 
 

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

@@ -36,6 +36,10 @@ class UIItemList<Item: UIItem>(
         val border: Int = 0
 ) : UIItem(parentUI) {
 
+    // deal with the moving position
+    override var oldPosX = posX
+    override var oldPosY = posY
+
     init {
         itemList.forEachIndexed { index, item ->
             item.posX = this.posX + border
@@ -47,7 +51,7 @@ class UIItemList<Item: UIItem>(
     var selectedIndex: Int? = defaultSelection
     val selectedButton: UIItem?
         get() = if (selectedIndex != null) itemList[selectedIndex!!] else null
-    private var highlightY: Double? = if (selectedIndex != null) itemList[selectedIndex!!].posY.toDouble() else null
+    private var highlightY: Float? = if (selectedIndex != null) itemList[selectedIndex!!].posY.toFloat() else null
     private val highlighterMoveDuration: Second = 0.1f
     private var highlighterMoveTimer: Second = 0f
     private var highlighterMoving = false
@@ -66,8 +70,8 @@ class UIItemList<Item: UIItem>(
                 highlightY = UIUtils.moveQuick(
                         highlighterYStart!!,
                         highlighterYEnd!!,
-                        highlighterMoveTimer.toDouble(),
+                        highlighterMoveTimer,
-                        highlighterMoveDuration.toDouble()
+                        highlighterMoveDuration
                 )
             }
 
@@ -87,14 +91,14 @@ class UIItemList<Item: UIItem>(
                 val oldIndex = selectedIndex
 
                 if (kinematic) {
-                    highlighterYStart = itemList[selectedIndex!!].posY.toDouble()
+                    highlighterYStart = itemList[selectedIndex!!].posY.toFloat()
                     selectedIndex = index
                     highlighterMoving = true
-                    highlighterYEnd = itemList[selectedIndex!!].posY.toDouble()
+                    highlighterYEnd = itemList[selectedIndex!!].posY.toFloat()
                 }
                 else {
                     selectedIndex = index
-                    highlightY = itemList[selectedIndex!!].posY.toDouble()
+                    highlightY = itemList[selectedIndex!!].posY.toFloat()
                 }
 
                 selectionChangeListener?.invoke(oldIndex, index)

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

@@ -17,6 +17,10 @@ class UIItemTextArea(
         val align: Alignment = Alignment.LEFT
 ) : UIItem(parentUI) {
 
+    // deal with the moving position
+    override var oldPosX = posX
+    override var oldPosY = posY
+
     private var entireText: List<String> = listOf("") // placeholder
 
     var scrollPos = 0

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

@@ -1,11 +1,14 @@
 package net.torvald.terrarum.ui
 
 import com.badlogic.gdx.graphics.Camera
-import net.torvald.terrarum.*
-import net.torvald.terrarum.langpack.Lang
 import com.badlogic.gdx.graphics.Color
 import com.badlogic.gdx.graphics.g2d.GlyphLayout
 import com.badlogic.gdx.graphics.g2d.SpriteBatch
+import net.torvald.terrarum.BlendMode
+import net.torvald.terrarum.Terrarum
+import net.torvald.terrarum.blendNormal
+import net.torvald.terrarum.fillRect
+import net.torvald.terrarum.langpack.Lang
 
 /**
  * Text button. Height of hitbox is extended (double lineHeight, or 40 px) for better clicking
@@ -34,6 +37,10 @@ open class UIItemTextButton(
         val hitboxSize: Int = UIItemTextButton.height
 ) : UIItem(parentUI) {
 
+    // deal with the moving position
+    override var oldPosX = posX
+    override var oldPosY = posY
+
     companion object {
         val font = Terrarum.fontGame
         val height = font.lineHeight.toInt()

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

@@ -4,8 +4,8 @@ import com.badlogic.gdx.graphics.Camera
 import com.badlogic.gdx.graphics.Color
 import com.badlogic.gdx.graphics.g2d.SpriteBatch
 import net.torvald.terrarum.BlendMode
-import net.torvald.terrarum.fillRect
 import net.torvald.terrarum.Second
+import net.torvald.terrarum.fillRect
 import net.torvald.terrarum.gameactors.ai.toInt
 import net.torvald.terrarum.roundInt
 import net.torvald.terrarumsansbitmap.gdx.TextureRegionPack
@@ -45,6 +45,10 @@ class UIItemTextButtonList(
         val itemHitboxSize: Int = UIItemTextButton.height
 ) : UIItem(parentUI) {
 
+    // deal with the moving position
+    override var oldPosX = posX
+    override var oldPosY = posY
+
     val iconToTextGap = 20
     val iconCellWidth = (iconSpriteSheet?.tileW ?: -iconToTextGap) / (iconSpriteSheet?.horizontalCount ?: 1)
     val iconCellHeight = (iconSpriteSheet?.tileH ?: 0) / (iconSpriteSheet?.verticalCount ?: 1)
@@ -130,7 +134,7 @@ class UIItemTextButtonList(
     var selectedIndex: Int? = defaultSelection
     val selectedButton: UIItemTextButton?
         get() = if (selectedIndex != null) buttons[selectedIndex!!] else null
-    private var highlightY: Double? = if (selectedIndex != null) buttons[selectedIndex!!].posY.toDouble() else null
+    private var highlightY: Float? = if (selectedIndex != null) buttons[selectedIndex!!].posY.toFloat() else null
     private val highlighterMoveDuration: Second = 0.1f
     private var highlighterMoveTimer: Second = 0f
     private var highlighterMoving = false
@@ -141,6 +145,10 @@ class UIItemTextButtonList(
     var selectionChangeListener: ((Int?, Int) -> Unit)? = null
 
     override fun update(delta: Float) {
+        val posXDelta = posX - oldPosX
+        buttons.forEach { it.posX += posXDelta }
+
+
         if (highlighterMoving) {
             highlighterMoveTimer += delta
 
@@ -148,8 +156,8 @@ class UIItemTextButtonList(
                 highlightY = UIUtils.moveQuick(
                         highlighterYStart!!,
                         highlighterYEnd!!,
-                        highlighterMoveTimer.toDouble(),
+                        highlighterMoveTimer.toFloat(),
-                        highlighterMoveDuration.toDouble()
+                        highlighterMoveDuration.toFloat()
                 )
             }
 
@@ -170,13 +178,13 @@ class UIItemTextButtonList(
 
                 if (kinematic) {
                     selectedIndex = index
-                    highlighterYStart = buttons[selectedIndex!!].posY.toDouble()
+                    highlighterYStart = buttons[selectedIndex!!].posY.toFloat()
                     highlighterMoving = true
-                    highlighterYEnd = buttons[selectedIndex!!].posY.toDouble()
+                    highlighterYEnd = buttons[selectedIndex!!].posY.toFloat()
                 }
                 else {
                     selectedIndex = index
-                    highlightY = buttons[selectedIndex!!].posY.toDouble()
+                    highlightY = buttons[selectedIndex!!].posY.toFloat()
                 }
 
                 selectionChangeListener?.invoke(oldIndex, index)
@@ -184,6 +192,8 @@ class UIItemTextButtonList(
             btn.highlighted = (index == selectedIndex) // forcibly highlight if this.highlighted != null
 
         }
+
+        oldPosX = posX
     }
 
     override fun render(batch: SpriteBatch, camera: Camera) {

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

@@ -6,6 +6,6 @@ import net.torvald.terrarum.sqr
  * Created by minjaesong on 2017-03-14.
  */
 object UIUtils {
-    fun moveQuick(start: Double, end: Double, timer: Double, duration: Double) =
+    fun moveQuick(start: Float, end: Float, timer: Float, duration: Float) =
             (start - end) * ((timer / duration) - 1).sqr() + end
 }