Revert mattery menu changes

src/main/kotlin/ru/dbotthepony/mc/otm/menu/MatteryMenu.kt

@@ -154,38 +154,36 @@ abstract class MatteryMenu @JvmOverloads protected constructor(
 
 	protected fun addInventorySlots(autoFrame: Boolean = !ply.isSpectator) {
 		check(_playerInventorySlots.isEmpty()) { "Already created inventory slots" }
+		autoCreateInventoryFrame = autoFrame
+
+		for (i in 9 .. 35) {
+			val slot = InventorySlot(inventory, i)
+
+			_playerInventorySlots.add(slot)
+			_playerMainSlots.add(slot)
+			_playerCombinedInventorySlots.add(slot)
+			addSlot(slot)
+		}
 
 		val mattery = ply.matteryPlayer
 
-		// trick minecraft's code into thinking that slots come from contiguous container
-		val proxyBuilder = ContainerProxy.Builder()
-
-		proxyBuilder.add(inventory, 0 .. 35)
-
 		if (mattery != null && mattery.hasExoSuit) {
-			proxyBuilder.add(mattery.exoSuitContainer)
+			for (i in 0 until mattery.exoSuitContainer.containerSize) {
+				val slot = InventorySlot(mattery.exoSuitContainer, i)
+
+				_playerInventorySlots.add(slot)
+				_playerExoSuitSlots.add(slot)
+				_playerCombinedInventorySlots.add(slot)
+				addSlot(slot)
+			}
 		}
 
-		val proxy = proxyBuilder.build()
+		for (i in 0..8) {
+			val slot = InventorySlot(inventory, i)
 
-		autoCreateInventoryFrame = autoFrame
-
-		for (slotId in 0 until proxy.containerSize) {
-			val slot = InventorySlot(proxy, slotId)
-
-			if (slotId in 0 .. 8) {
-				_playerHotbarSlots.add(slot)
-				addSlot(slot)
-				continue
-			} else if (slotId in 9 .. 35) {
-				_playerMainSlots.add(slot)
-			} else {
-				_playerExoSuitSlots.add(slot)
-			}
-
-			_playerInventorySlots.add(slot)
-			_playerCombinedInventorySlots.add(slot)
 			addSlot(slot)
+			_playerInventorySlots.add(slot)
+			_playerHotbarSlots.add(slot)
 		}
 	}