fix: old tooltip managing code and revived the fading transition

src/net/torvald/terrarum/IngameInstance.kt

@@ -416,10 +416,12 @@ open class IngameInstance(val batch: FlippingSpriteBatch, val isMultiplayer: Boo
     open fun setTooltipMessage(message: String?) {
         if (message == null) {
             uiTooltip.setAsClose()
+//            printdbg(this, "Tooltip close!")
         }
         else {
             if (uiTooltip.isClosed || uiTooltip.isClosing) {
                 uiTooltip.setAsOpen()
+//                printdbg(this, "Tooltip open!")
             }
             uiTooltip.message = message
 

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

@@ -14,6 +14,7 @@ import net.torvald.terrarum.langpack.Lang
 import net.torvald.terrarum.modulebasegame.gameactors.CraftingStation
 import net.torvald.terrarum.modulebasegame.gameactors.FixtureInventory
 import net.torvald.terrarum.modulebasegame.gameactors.InventoryPair
+import net.torvald.terrarum.modulebasegame.ui.UIItemInventoryCellCommonRes.tooltipShowing
 import net.torvald.terrarum.modulebasegame.ui.UIItemInventoryItemGrid.Companion.listGap
 import net.torvald.terrarum.modulebasegame.ui.UITemplateHalfInventory.Companion.INVENTORY_NAME_TEXT_GAP
 import net.torvald.terrarum.ui.*
@@ -402,7 +403,7 @@ class UICrafting(val full: UIInventoryFull?) : UICanvas(
 
         openingClickLatched = Terrarum.mouseDown
 
-        UIItemInventoryItemGrid.tooltipShowing.clear()
+        tooltipShowing.clear()
         INGAME.setTooltipMessage(null)
 
         resetUI()
@@ -476,14 +477,14 @@ class UICrafting(val full: UIInventoryFull?) : UICanvas(
 
     override fun endOpening(delta: Float) {
         super.endOpening(delta)
-        UIItemInventoryItemGrid.tooltipShowing.clear()
+        tooltipShowing.clear()
         INGAME.setTooltipMessage(null) // required!
     }
 
     override fun endClosing(delta: Float) {
         super.endClosing(delta)
         resetUI()
-        UIItemInventoryItemGrid.tooltipShowing.clear()
+        tooltipShowing.clear()
         INGAME.setTooltipMessage(null) // required!
     }
 

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

@@ -15,6 +15,7 @@ import net.torvald.terrarum.modulebasegame.ui.UIInventoryFull.Companion.INVENTOR
 import net.torvald.terrarum.modulebasegame.ui.UIInventoryFull.Companion.INVENTORY_CELLS_OFFSET_Y
 import net.torvald.terrarum.modulebasegame.ui.UIInventoryFull.Companion.controlHelpHeight
 import net.torvald.terrarum.modulebasegame.ui.UIInventoryFull.Companion.internalWidth
+import net.torvald.terrarum.modulebasegame.ui.UIItemInventoryCellCommonRes.tooltipShowing
 import net.torvald.terrarum.modulebasegame.ui.UIItemInventoryItemGrid.Companion.createInvCellGenericKeyDownFun
 import net.torvald.terrarum.modulebasegame.ui.UIItemInventoryItemGrid.Companion.createInvCellGenericTouchDownFun
 import net.torvald.terrarum.ui.Toolkit
@@ -173,14 +174,14 @@ internal class UIInventoryCells(
     }
 
     override fun show() {
-        UIItemInventoryItemGrid.tooltipShowing.clear()
+        tooltipShowing.clear()
         INGAME.setTooltipMessage(null)
     }
 
 
     override fun endClosing(delta: Float) {
         super.endClosing(delta)
-        UIItemInventoryItemGrid.tooltipShowing.clear()
+        tooltipShowing.clear()
         INGAME.setTooltipMessage(null)
     }
 

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

@@ -18,6 +18,7 @@ import net.torvald.terrarum.modulebasegame.gameactors.IngamePlayer
 import net.torvald.terrarum.modulebasegame.ui.UIInventoryFull.Companion.INVENTORY_CELLS_OFFSET_Y
 import net.torvald.terrarum.modulebasegame.ui.UIInventoryFull.Companion.INVENTORY_CELLS_UI_HEIGHT
 import net.torvald.terrarum.modulebasegame.serialise.WriteSavegame
+import net.torvald.terrarum.modulebasegame.ui.UIItemInventoryCellCommonRes.tooltipShowing
 import net.torvald.terrarum.serialise.WriteConfig
 import net.torvald.terrarum.ui.Toolkit
 import net.torvald.terrarum.ui.UICanvas
@@ -281,7 +282,7 @@ class UIInventoryEscMenu(val full: UIInventoryFull) : UICanvas() {
     )
 
     override fun show() {
-        UIItemInventoryItemGrid.tooltipShowing.clear()
+        tooltipShowing.clear()
         INGAME.setTooltipMessage(null)
         toInitScreen()
     }
@@ -355,7 +356,7 @@ class UIInventoryEscMenu(val full: UIInventoryFull) : UICanvas() {
     override fun endClosing(delta: Float) {
         super.endClosing(delta)
         screen = 0
-        UIItemInventoryItemGrid.tooltipShowing.clear()
+        tooltipShowing.clear()
         INGAME.setTooltipMessage(null)
     }
 

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

@@ -10,6 +10,7 @@ import net.torvald.terrarum.audio.decibelsToFullscale
 import net.torvald.terrarum.gameitems.GameItem
 import net.torvald.terrarum.langpack.Lang
 import net.torvald.terrarum.modulebasegame.gameactors.ActorHumanoid
+import net.torvald.terrarum.modulebasegame.ui.UIItemInventoryCellCommonRes.tooltipShowing
 import net.torvald.terrarum.ui.*
 import net.torvald.terrarumsansbitmap.gdx.TextureRegionPack
 import net.torvald.unicode.*
@@ -321,7 +322,7 @@ class UIInventoryFull(
 
     override fun show() {
         transitionPanel.show()
-        UIItemInventoryItemGrid.tooltipShowing.clear()
+        tooltipShowing.clear()
         INGAME.setTooltipMessage(null)
     }
 
@@ -413,7 +414,7 @@ class UIInventoryFull(
         INGAME.setTooltipMessage(null) // required!
 //        MinimapComposer.revalidateAll()
 
-        UIItemInventoryItemGrid.tooltipShowing.clear()
+        tooltipShowing.clear()
 
 //        printdbg(this, "Clearing out tooltipShowing")
     }

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

@@ -32,11 +32,14 @@ abstract class UIItemInventoryCellBase(
     var touchDownFun: (GameItem?, Long, Int, Any?, UIItemInventoryCellBase) -> Unit, // Item, Amount, Button, extra info, self
     open var extraInfo: Any?,
     open protected val highlightEquippedItem: Boolean = true, // for some UIs that only cares about getting equipped slot number but not highlighting
-    var colourTheme: InventoryCellColourTheme = UIItemInventoryCellCommonRes.defaultInventoryCellTheme
+    var colourTheme: InventoryCellColourTheme = UIItemInventoryCellCommonRes.defaultInventoryCellTheme,
+    var showTooltip: Boolean = true,
 ) : UIItem(parentUI, initialX, initialY) {
     abstract override fun update(delta: Float)
     abstract override fun render(frameDelta: Float, batch: SpriteBatch, camera: OrthographicCamera)
 
+    protected val hash = System.nanoTime()
+
     /** Custom highlight rule to highlight tihs button to primary accent colour (blue by default).
      * Set to `null` to use default rule:
      *
@@ -110,6 +113,8 @@ object UIItemInventoryCellCommonRes {
         Color.WHITE,
         Toolkit.Theme.COL_CELL_FILL
     )
+
+    val tooltipShowing = HashMap<Long, Boolean>() // Long: `hash` field on UIItemInventoryItemGrid
 }
 
 data class InventoryCellColourTheme(

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

@@ -56,8 +56,6 @@ open class UIItemInventoryItemGrid(
 
     var numberMultiplier = 1L
 
-    private val hash = System.nanoTime()
-
     override val width  = horizontalCells * UIItemInventoryElemSimple.height + (horizontalCells - 1) * listGap
     override val height = verticalCells * UIItemInventoryElemSimple.height + (verticalCells - 1) * listGap
 
@@ -179,9 +177,6 @@ open class UIItemInventoryItemGrid(
             }
         }
 
-        // COMMON variables because more than one instance of this can be up on the screen
-        // This variable must be emptied out when the parent UI hides/closes
-        val tooltipShowing = HashMap<Long, Boolean>() // Long: `hash` field on UIItemInventoryItemGrid
     }
 
     protected val itemGrid = Array<UIItemInventoryCellBase>(horizontalCells * verticalCells) {
@@ -317,40 +312,10 @@ open class UIItemInventoryItemGrid(
     override fun update(delta: Float) {
         super.update(delta)
 
-
-        tooltipShowing[hash] = false
-
-//        printdbg(this, tooltipShowing.entries)
-
         items.forEach {
             it.update(delta)
-
-
-            // set tooltip accordingly
-            if ((App.IS_DEVELOPMENT_BUILD || isCompactMode) && tooltipShowing[hash] != true && it.item != null && it.mouseUp) {
-//                printdbg(this, "calling INGAME.setTooltipMessage by $hash")
-
-                val grey = App.fontGame.toColorCode(11, 11, 11)
-                val itemIDstr = "\n$grey(${it.item?.originalID}${if (it.item?.originalID == it.item?.dynamicID) "" else "/${it.item?.dynamicID}"})"
-                val nameStr = if (it.item?.nameSecondary?.isNotBlank() == true) "${it.item?.name}\n$grey${it.item?.nameSecondary}" else "${it.item?.name}"
-
-                INGAME.setTooltipMessage(
-                    if (App.IS_DEVELOPMENT_BUILD)
-                        nameStr + itemIDstr
-                    else
-                        nameStr
-                )
-
-                tooltipShowing[hash] = true
-//                printdbg(this, tooltipShowing.entries)
-            }
         }
 
-        if (tooltipShowing.values.all { !it }) {
-            INGAME.setTooltipMessage(null)
-        }
-
-
         if (!hideSidebar) {
             navRemoCon.update(delta)
         }
@@ -585,11 +550,6 @@ open class UIItemInventoryItemGrid(
     }
 
     override fun dispose() {
-        tooltipShowing.remove(hash)
-    }
-
-    override fun hide() {
-        tooltipShowing.remove(hash)
     }
 
     override fun touchDown(screenX: Int, screenY: Int, pointer: Int, button: Int): Boolean {

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

@@ -8,6 +8,7 @@ import net.torvald.terrarum.langpack.Lang
 import net.torvald.terrarum.modulebasegame.gameactors.FixtureInventory
 import net.torvald.terrarum.modulebasegame.gameactors.FixtureJukebox
 import net.torvald.terrarum.modulebasegame.gameitems.ItemFileRef
+import net.torvald.terrarum.modulebasegame.ui.UIItemInventoryCellCommonRes.tooltipShowing
 import net.torvald.terrarum.ui.*
 import net.torvald.terrarumsansbitmap.gdx.TextureRegionPack
 import net.torvald.unicode.getKeycapPC
@@ -78,7 +79,7 @@ class UIJukebox : UICanvas(
     override fun show() {
         openingClickLatched = Terrarum.mouseDown
         transitionPanel.show()
-        UIItemInventoryItemGrid.tooltipShowing.clear()
+        tooltipShowing.clear()
         INGAME.setTooltipMessage(null)
     }
 
@@ -131,7 +132,7 @@ class UIJukebox : UICanvas(
 
     override fun endClosing(delta: Float) {
         super.endClosing(delta)
-        UIItemInventoryItemGrid.tooltipShowing.clear()
+        tooltipShowing.clear()
         INGAME.setTooltipMessage(null) // required!
     }
 

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

@@ -11,6 +11,7 @@ import net.torvald.terrarum.modulebasegame.gameactors.FixtureInventory
 import net.torvald.terrarum.modulebasegame.gameactors.FixtureSmelterBasic
 import net.torvald.terrarum.modulebasegame.gameactors.InventoryPair
 import net.torvald.terrarum.modulebasegame.gameitems.FixtureItemBase
+import net.torvald.terrarum.modulebasegame.ui.UIItemInventoryCellCommonRes.tooltipShowing
 import net.torvald.terrarum.ui.*
 import net.torvald.terrarum.ui.UIItemCatBar.Companion.FILTER_CAT_ALL
 import net.torvald.terrarum.ui.UIItemInventoryElemWide.Companion.UNIQUE_ITEM_HAS_NO_AMOUNT
@@ -98,7 +99,7 @@ class UISmelterBasic(val smelter: FixtureSmelterBasic) : UICanvas(
     private val productX = backdropX + 37 * backdropZoom + 3
     private val productY = backdropY + 39 * backdropZoom + 3
 
-    private val thermoX = (backdropX + 28 * backdropZoom + 1).toInt()
+    private val thermoX = (backdropX + 24 * backdropZoom + 1).toInt()
     private val thermoY = (backdropY + 39 * backdropZoom + 3).toInt()
 
     /*
@@ -253,7 +254,7 @@ class UISmelterBasic(val smelter: FixtureSmelterBasic) : UICanvas(
         playerThings.setGetInventoryFun { INGAME.actorNowPlaying!!.inventory }
         itemListUpdate()
 
-        UIItemInventoryItemGrid.tooltipShowing.clear()
+        tooltipShowing.clear()
         INGAME.setTooltipMessage(null)
     }
 
@@ -390,7 +391,7 @@ class UISmelterBasic(val smelter: FixtureSmelterBasic) : UICanvas(
 
     override fun endClosing(delta: Float) {
         super.endClosing(delta)
-        UIItemInventoryItemGrid.tooltipShowing.clear()
+        tooltipShowing.clear()
         INGAME.setTooltipMessage(null) // required!
     }
 

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

@@ -9,6 +9,7 @@ import net.torvald.terrarum.gameitems.GameItem
 import net.torvald.terrarum.langpack.Lang
 import net.torvald.terrarum.modulebasegame.gameactors.FixtureInventory
 import net.torvald.terrarum.modulebasegame.ui.UIInventoryFull.Companion.getWidthOfCells
+import net.torvald.terrarum.modulebasegame.ui.UIItemInventoryCellCommonRes.tooltipShowing
 import net.torvald.terrarum.ui.*
 import net.torvald.unicode.getKeycapPC
 import kotlin.math.max
@@ -155,7 +156,7 @@ internal class UIStorageChest : UICanvas(
 
         openingClickLatched = Terrarum.mouseDown
 
-        UIItemInventoryItemGrid.tooltipShowing.clear()
+        tooltipShowing.clear()
         INGAME.setTooltipMessage(null)
     }
 
@@ -254,7 +255,7 @@ internal class UIStorageChest : UICanvas(
 
     override fun endClosing(delta: Float) {
         super.endClosing(delta)
-        UIItemInventoryItemGrid.tooltipShowing.clear()
+        tooltipShowing.clear()
         INGAME.setTooltipMessage(null) // required!
     }
 

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

@@ -5,8 +5,11 @@ import com.badlogic.gdx.graphics.Color
 import com.badlogic.gdx.graphics.OrthographicCamera
 import com.badlogic.gdx.graphics.g2d.SpriteBatch
 import net.torvald.terrarum.App
+import net.torvald.terrarum.App.printdbg
+import net.torvald.terrarum.INGAME
 import net.torvald.terrarum.Second
 import net.torvald.terrarum.Terrarum
+import net.torvald.terrarum.modulebasegame.ui.UIItemInventoryCellCommonRes.tooltipShowing
 import net.torvald.terrarum.ui.Toolkit
 import net.torvald.terrarum.ui.UICanvas
 import net.torvald.terrarum.ui.UINotControllable
@@ -21,7 +24,7 @@ class UITooltip : UICanvas() {
         handler.allowESCtoClose = false
     }
 
-    override var openCloseTime: Second = 0f
+    override var openCloseTime: Second = OPENCLOSE_GENERIC * 0.72f
 
     private val tooltipBackCol = Color.WHITE
     private val tooltipForeCol = Color(0xfafafaff.toInt())
@@ -48,6 +51,7 @@ class UITooltip : UICanvas() {
         get() = 36 * 2 + font.lineHeight.toInt()
         set(value) { throw Error("You are not supposed to set the height of the tooltip manually.") }
 
+
     override fun renderUI(frameDelta: Float, batch: SpriteBatch, camera: OrthographicCamera) {
         val mouseXoff = 28f
         val mouseYoff = 0f
@@ -80,20 +84,29 @@ class UITooltip : UICanvas() {
         }
     }
 
+//    private var lastOpenSignalTime = 0L
+//    private var debounceTime = 100*1000000L // miliseconds
+
+    override fun setAsOpen() {
+        handler.setAsOpen()
+//        lastOpenSignalTime = System.nanoTime()
+//        printdbg(this, "start open")
+    }
+
+    override fun setAsClose() {
+//        printdbg(this, "Close called, time since last open: ${System.nanoTime() - lastOpenSignalTime}")
+//        if (System.nanoTime() - lastOpenSignalTime >= debounceTime) {
+//            printdbg(this, "start close")
+            handler.setAsClose()
+//        }
+    }
+
     override fun updateUI(delta: Float) {
         setPosition(Terrarum.mouseScreenX, Terrarum.mouseScreenY)
-    }
 
-    override fun doOpening(delta: Float) {
+        if (tooltipShowing.values.all { !it }) {
-    }
+            INGAME.setTooltipMessage(null)
-
+        }
-    override fun doClosing(delta: Float) {
-    }
-
-    override fun endOpening(delta: Float) {
-    }
-
-    override fun endClosing(delta: Float) {
     }
 
     override fun dispose() {

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

@@ -8,6 +8,7 @@ import net.torvald.terrarum.*
 import net.torvald.terrarum.gameworld.WorldTime
 import net.torvald.terrarum.gameworld.WorldTime.Companion.MONTH_LENGTH
 import net.torvald.terrarum.langpack.Lang
+import net.torvald.terrarum.modulebasegame.ui.UIItemInventoryCellCommonRes.tooltipShowing
 import net.torvald.terrarum.ui.Toolkit
 import net.torvald.terrarum.ui.UICanvas
 import net.torvald.unicode.getKeycapPC
@@ -368,13 +369,13 @@ class UIWallCalendar : UICanvas(
 
     override fun endOpening(delta: Float) {
         super.endOpening(delta)
-        UIItemInventoryItemGrid.tooltipShowing.clear()
+        tooltipShowing.clear()
         INGAME.setTooltipMessage(null) // required!
     }
 
     override fun endClosing(delta: Float) {
         super.endClosing(delta)
-        UIItemInventoryItemGrid.tooltipShowing.clear()
+        tooltipShowing.clear()
         INGAME.setTooltipMessage(null) // required!
     }
 

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

@@ -14,6 +14,7 @@ import net.torvald.terrarum.modulebasegame.ui.UIInventoryFull.Companion.YPOS_COR
 import net.torvald.terrarum.modulebasegame.ui.UIInventoryFull.Companion.drawBackground
 import net.torvald.terrarum.modulebasegame.ui.UIInventoryFull.Companion.internalHeight
 import net.torvald.terrarum.modulebasegame.ui.UIInventoryFull.Companion.internalWidth
+import net.torvald.terrarum.modulebasegame.ui.UIItemInventoryCellCommonRes.tooltipShowing
 import net.torvald.terrarum.serialise.toAscii85
 import net.torvald.terrarum.ui.*
 import net.torvald.terrarumsansbitmap.gdx.TextureRegionPack
@@ -190,14 +191,14 @@ class UIWorldPortal : UICanvas(
     override fun endOpening(delta: Float) {
         super.endOpening(delta)
         transitionPanel.uis.forEach { it.opacity = FastMath.pow(opacity, 0.5f)  }
-        UIItemInventoryItemGrid.tooltipShowing.clear()
+        tooltipShowing.clear()
         INGAME.setTooltipMessage(null) // required!
     }
 
     override fun endClosing(delta: Float) {
         super.endClosing(delta)
         transitionPanel.uis.forEach { it.opacity = FastMath.pow(opacity, 0.5f) }
-        UIItemInventoryItemGrid.tooltipShowing.clear()
+        tooltipShowing.clear()
         INGAME.setTooltipMessage(null) // required!
     }
 }

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

@@ -8,6 +8,7 @@ import net.torvald.terrarum.gameactors.AVKey
 import net.torvald.terrarum.gameitems.GameItem
 import net.torvald.terrarum.langpack.Lang
 import net.torvald.terrarum.modulebasegame.gameactors.FixtureInventory
+import net.torvald.terrarum.modulebasegame.ui.UIItemInventoryCellCommonRes.tooltipShowing
 import net.torvald.terrarum.ui.*
 import net.torvald.unicode.getKeycapPC
 import kotlin.math.max
@@ -144,7 +145,7 @@ class UIWorldPortalCargo(val full: UIWorldPortal) : UICanvas(), HasInventory {
 
         openingClickLatched = Terrarum.mouseDown
 
-        UIItemInventoryItemGrid.tooltipShowing.clear()
+        tooltipShowing.clear()
         INGAME.setTooltipMessage(null)
     }
 
@@ -244,7 +245,7 @@ class UIWorldPortalCargo(val full: UIWorldPortal) : UICanvas(), HasInventory {
     }
 
     override fun endClosing(delta: Float) {
-        UIItemInventoryItemGrid.tooltipShowing.clear()
+        tooltipShowing.clear()
         INGAME.setTooltipMessage(null) // required!
     }
 

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

@@ -13,6 +13,7 @@ import net.torvald.terrarum.langpack.Lang
 import net.torvald.terrarum.modulebasegame.gameactors.FixtureWorldPortal
 import net.torvald.terrarum.modulebasegame.ui.UIInventoryFull.Companion.INVENTORY_CELLS_OFFSET_Y
 import net.torvald.terrarum.modulebasegame.ui.UIInventoryFull.Companion.getCellCountVertically
+import net.torvald.terrarum.modulebasegame.ui.UIItemInventoryCellCommonRes.tooltipShowing
 import net.torvald.terrarum.realestate.LandUtil.CHUNK_H
 import net.torvald.terrarum.realestate.LandUtil.CHUNK_W
 import net.torvald.terrarum.savegame.*
@@ -524,7 +525,7 @@ class UIWorldPortalListing(val full: UIWorldPortal) : UICanvas() {
 
     override fun endClosing(delta: Float) {
         super.endClosing(delta)
-        UIItemInventoryItemGrid.tooltipShowing.clear()
+        tooltipShowing.clear()
         INGAME.setTooltipMessage(null) // required!
     }
 

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

@@ -4,16 +4,14 @@ import com.badlogic.gdx.graphics.Color
 import com.badlogic.gdx.graphics.OrthographicCamera
 import com.badlogic.gdx.graphics.g2d.SpriteBatch
 import com.badlogic.gdx.graphics.g2d.TextureRegion
-import net.torvald.terrarum.App
+import net.torvald.terrarum.*
-import net.torvald.terrarum.CommonResourcePool
-import net.torvald.terrarum.blendNormalStraightAlpha
 import net.torvald.terrarum.gameitems.GameItem
 import net.torvald.terrarum.modulebasegame.ui.InventoryCellColourTheme
 import net.torvald.terrarum.modulebasegame.ui.UIItemInventoryCellBase
 import net.torvald.terrarum.modulebasegame.ui.UIItemInventoryCellCommonRes
 import net.torvald.terrarum.modulebasegame.ui.UIItemInventoryCellCommonRes.defaultInventoryCellTheme
 import net.torvald.terrarum.modulebasegame.ui.UIItemInventoryCellCommonRes.toItemCountText
-import net.torvald.terrarum.mul
+import net.torvald.terrarum.modulebasegame.ui.UIItemInventoryCellCommonRes.tooltipShowing
 import kotlin.math.roundToInt
 
 /**
@@ -59,7 +57,6 @@ class UIItemInventoryElemSimple(
     private val emptyCellIconOffsetY = (this.height - (emptyCellIcon?.regionHeight ?: 0)).div(2).toFloat()
 
     override fun update(delta: Float) {
-
     }
 
     private var highlightToMainCol = false
@@ -129,6 +126,29 @@ class UIItemInventoryElemSimple(
                 )
             }
 
+
+            // set tooltip accordingly
+            if (tooltipShowing[hash] != true && item != null && mouseUp) {
+//                printdbg(this, "calling INGAME.setTooltipMessage by $hash")
+
+                val grey = App.fontGame.toColorCode(11, 11, 11)
+                val itemIDstr = "\n$grey(${item?.originalID}${if (item?.originalID == item?.dynamicID) "" else "/${item?.dynamicID}"})"
+                val nameStr = if (item?.nameSecondary?.isNotBlank() == true) "${item?.name}\n$grey${item?.nameSecondary}" else "${item?.name}"
+
+                INGAME.setTooltipMessage(
+                    if (App.IS_DEVELOPMENT_BUILD)
+                        nameStr + itemIDstr
+                    else
+                        nameStr
+                )
+
+                tooltipShowing[hash] = true
+//                printdbg(this, tooltipShowing.entries)
+            }
+            else if (item == null || !mouseUp) {
+                tooltipShowing[hash] = false
+            }
+
         }
         else {
 
@@ -146,5 +166,10 @@ class UIItemInventoryElemSimple(
     }
 
     override fun dispose() {
+        tooltipShowing.remove(hash)
+    }
+
+    override fun hide() {
+        tooltipShowing.remove(hash)
     }
 }

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

@@ -5,12 +5,14 @@ import com.badlogic.gdx.graphics.OrthographicCamera
 import com.badlogic.gdx.graphics.g2d.SpriteBatch
 import com.badlogic.gdx.graphics.g2d.TextureRegion
 import net.torvald.terrarum.*
+import net.torvald.terrarum.App.IS_DEVELOPMENT_BUILD
 import net.torvald.terrarum.App.printdbg
 import net.torvald.terrarum.gameitems.GameItem
 import net.torvald.terrarum.modulebasegame.ui.InventoryCellColourTheme
 import net.torvald.terrarum.modulebasegame.ui.UIItemInventoryCellBase
 import net.torvald.terrarum.modulebasegame.ui.UIItemInventoryCellCommonRes
 import net.torvald.terrarum.modulebasegame.ui.UIItemInventoryCellCommonRes.toItemCountText
+import net.torvald.terrarum.modulebasegame.ui.UIItemInventoryCellCommonRes.tooltipShowing
 import kotlin.math.roundToInt
 
 /***
@@ -64,9 +66,6 @@ class UIItemInventoryElemWide(
 
 
     override fun update(delta: Float) {
-        if (item != null) {
-
-        }
     }
 
     private var highlightToMainCol = false
@@ -159,13 +158,39 @@ class UIItemInventoryElemWide(
                 App.fontGame.draw(batch, "$label", barOffset + barFullLen - labelW.toFloat(), posY + textOffsetY)
             }
 
+
+            // set tooltip accordingly
+            if (IS_DEVELOPMENT_BUILD && tooltipShowing[hash] != true && item != null && mouseUp) {
+//                printdbg(this, "calling INGAME.setTooltipMessage by $hash")
+
+                val grey = App.fontGame.toColorCode(11, 11, 11)
+                val itemIDstr = "\n$grey(${item?.originalID}${if (item?.originalID == item?.dynamicID) "" else "/${item?.dynamicID}"})"
+                val nameStr = if (item?.nameSecondary?.isNotBlank() == true) "${item?.name}\n$grey${item?.nameSecondary}" else "${item?.name}"
+
+                INGAME.setTooltipMessage(
+                    if (App.IS_DEVELOPMENT_BUILD)
+                        nameStr + itemIDstr
+                    else
+                        nameStr
+                )
+
+                tooltipShowing[hash] = true
+//                printdbg(this, tooltipShowing.entries)
+            }
+            else if (item == null || !mouseUp) {
+                tooltipShowing[hash] = false
+            }
         }
 
         // see IFs above?
         batch.color = Color.WHITE
-
     }
 
     override fun dispose() {
+        tooltipShowing.remove(hash)
+    }
+
+    override fun hide() {
+        tooltipShowing.remove(hash)
     }
 }