fix: workbench failes to load because uiInventoryPlayer is uninit'd at the load time

src/net/torvald/terrarum/modulebasegame/TerrarumIngame.kt

@@ -189,6 +189,9 @@ open class TerrarumIngame(batch: FlippingSpriteBatch) : IngameInstance(batch) {
     lateinit var uiPieMenu: UIQuickslotPie
     lateinit var uiQuickBar: UIQuickslotBar
     lateinit var uiInventoryPlayer: UIInventoryFull
+
+    internal val uiInventoryPlayerReady: Boolean get() = ::uiInventoryPlayer.isInitialized // this is some ugly hack but I didn't want to make uiInventoryPlayer nullable so bite me
+
     /**
      * This is a dedicated property for the fixtures' UI.
      *

src/net/torvald/terrarum/modulebasegame/gameactors/FixtureWorkbench.kt

@@ -21,8 +21,7 @@ class FixtureWorkbench : FixtureBase, CraftingStation {
 
     constructor() : super(
         BlockBox(BlockBox.ALLOW_MOVE_DOWN, 2, 1),
-        nameFun = { Lang["ITEM_WORKBENCH"] },
-        mainUI = (INGAME as? TerrarumIngame)?.uiInventoryPlayer
+        nameFun = { Lang["ITEM_WORKBENCH"] }
     ) {
         val itemImage = FixtureItemBase.getItemImageFromSingleImage("basegame", "sprites/fixtures/workbench.tga")
 
@@ -40,4 +39,17 @@ class FixtureWorkbench : FixtureBase, CraftingStation {
         }
     }
 
+    private var mainUIhookHackInstalled = false
+    override fun update(delta: Float) {
+        // adding UI to the fixture as players may right-click on the workbenches instead of pressing a keyboard key
+        (INGAME as? TerrarumIngame)?.let { ingame ->
+            if (!mainUIhookHackInstalled && ingame.uiInventoryPlayerReady) {
+                mainUIhookHackInstalled = true
+                this.mainUI = ingame.uiInventoryPlayer // this field is initialised only after a full load so this hack is necessary
+            }
+        }
+
+        super.update(delta)
+    }
+
 }