Terminal GUI: add read only fake slot

src/main/kotlin/net/shadowfacts/phycon/network/block/terminal/TerminalBlockEntity.kt

@@ -31,6 +31,7 @@ class TerminalBlockEntity: DeviceBlockEntity(PhyBlockEntities.TERMINAL), Invento
 
 	private var observers = 0
 	val cachedNetItems = ItemStackCollections.intMap()
+	var cachedSortedNetItems = listOf<ItemStack>()
 	var counter = 0
 
 	init {
@@ -130,6 +131,11 @@ class TerminalBlockEntity: DeviceBlockEntity(PhyBlockEntities.TERMINAL), Invento
 			val netAmount = entryTag.getInt("NetAmount")
 			cachedNetItems[stack] = netAmount
 		}
+		cachedSortedNetItems = cachedNetItems.object2IntEntrySet().sortedByDescending { it.intValue }.map {
+			val stack = it.key.copy()
+			stack.count = it.intValue
+			stack
+		}
 	}
 
 }

src/main/kotlin/net/shadowfacts/phycon/network/block/terminal/TerminalContainer.kt

@@ -17,6 +17,13 @@ class TerminalContainer(syncId: Int, playerInv: PlayerInventory, val terminal: T
 	}
 
 	init {
+		// network
+		for (y in 0 until 6) {
+			for (x in 0 until 9) {
+				addSlot(TerminalFakeSlot(terminal, y * 9 + x, 66 + x * 18, 18 + y * 18))
+			}
+		}
+
 		// internal buffer
 		for (y in 0 until 6) {
 			for (x in 0 until 3) {

src/main/kotlin/net/shadowfacts/phycon/network/block/terminal/TerminalFakeSlot.kt

@@ -0,0 +1,61 @@
+package net.shadowfacts.phycon.network.block.terminal
+
+import net.minecraft.container.Slot
+import net.minecraft.entity.player.PlayerEntity
+import net.minecraft.inventory.Inventory
+import net.minecraft.item.ItemStack
+
+/**
+ * @author shadowfacts
+ */
+class TerminalFakeSlot(val terminal: TerminalBlockEntity, slot: Int, x: Int, y: Int): Slot(FakeInventory(terminal, slot), slot, x, y) {
+
+	override fun canInsert(stack: ItemStack): Boolean {
+		return false
+	}
+
+	override fun setStack(stack: ItemStack) {
+	}
+
+	override fun canTakeItems(player: PlayerEntity): Boolean {
+		return false
+	}
+
+}
+
+class FakeInventory(val terminal: TerminalBlockEntity, val slot: Int): Inventory {
+	override fun getInvStack(_slot: Int): ItemStack {
+		if (slot >= terminal.cachedSortedNetItems.size) return ItemStack.EMPTY
+		return terminal.cachedSortedNetItems[slot]
+	}
+
+	override fun markDirty() {
+	}
+
+	override fun clear() {
+	}
+
+	override fun setInvStack(p0: Int, p1: ItemStack?) {
+	}
+
+	override fun removeInvStack(p0: Int): ItemStack {
+		return ItemStack.EMPTY
+	}
+
+	override fun canPlayerUseInv(p0: PlayerEntity?): Boolean {
+		return false
+	}
+
+	override fun getInvSize(): Int {
+		return 1
+	}
+
+	override fun takeInvStack(p0: Int, p1: Int): ItemStack {
+		return ItemStack.EMPTY
+	}
+
+	override fun isInvEmpty(): Boolean {
+		return false
+	}
+
+}