sound cues for buttons

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

@@ -35,9 +35,16 @@ abstract class UIItemInventoryCellBase(
     var colourTheme: InventoryCellColourTheme = UIItemInventoryCellCommonRes.defaultInventoryCellTheme,
     var showTooltip: Boolean = true,
 ) : UIItem(parentUI, initialX, initialY) {
-    abstract override fun update(delta: Float)
+
+    override fun update(delta: Float) {
+        suppressHaptic = (item == null)
+        super.update(delta)
+    }
+
     abstract override fun render(frameDelta: Float, batch: SpriteBatch, camera: OrthographicCamera)
 
+    override var suppressHaptic = false
+
     protected val tooltipHash = System.nanoTime()
 
     /** Custom highlight rule to highlight tihs button to primary accent colour (blue by default).

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

@@ -51,6 +51,8 @@ open class UIItemInventoryItemGrid(
     private val colourTheme: InventoryCellColourTheme = defaultInventoryCellTheme
 ) : UIItem(parentUI, initialX, initialY) {
 
+    override var suppressHaptic = true
+
     // deal with the moving position
     //override var oldPosX = posX
     //override var oldPosY = posY

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

@@ -23,6 +23,7 @@ class UIItemListNavBarVertical(
     var extraDrawOpOnBottom: (UIItemListNavBarVertical, SpriteBatch) -> Unit = { _,_ -> }
 ) : UIItem(parentUI, initialX, initialY) {
 
+    override var suppressHaptic = true
     override val width = UIItemListNavBarVertical.WIDTH
 
     override val mouseUp: Boolean

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

@@ -496,6 +496,8 @@ class UIItemPlayerCells(
     val playerUUID: UUID,
 ) : UIItem(parent, initialX, initialY) {
 
+    override var suppressHaptic = false
+
     override val width = SAVE_CELL_WIDTH
     override val height = SAVE_CELL_HEIGHT
 
@@ -766,6 +768,7 @@ class UIItemWorldCells(
         initialY: Int,
         val skimmer: DiskSkimmer) : UIItem(parent, initialX, initialY) {
 
+    override var suppressHaptic = false
 
     private val metaFile: EntryFile?
     private val saveName: String