lock quantumbridge inventory to 1 card or singularity

src/main/java/appeng/container/implementations/ContainerQNB.java

@@ -20,30 +20,44 @@ package appeng.container.implementations;
 
 
 import appeng.container.AEBaseContainer;
+import appeng.container.slot.IOptionalSlotHost;
+import appeng.container.slot.OptionalSlotRestrictedInput;
 import appeng.container.slot.SlotRestrictedInput;
 import appeng.tile.qnb.TileQuantumBridge;
 import net.minecraft.entity.player.InventoryPlayer;
 import net.minecraft.inventory.Slot;
 
 
-public class ContainerQNB extends AEBaseContainer {
+public class ContainerQNB extends AEBaseContainer implements IOptionalSlotHost {
 
-    SlotRestrictedInput SINGULARITY;
-    SlotRestrictedInput QUANTUM_CARD;
+    OptionalSlotRestrictedInput SINGULARITY;
+    OptionalSlotRestrictedInput QUANTUM_CARD;
 
     public ContainerQNB(final InventoryPlayer ip, final TileQuantumBridge quantumBridge) {
         super(ip, quantumBridge, null);
 
-        SINGULARITY = new SlotRestrictedInput(SlotRestrictedInput.PlacableItemType.QE_SINGULARITY, quantumBridge
-                .getInternalInventory(), 0, 80, 37, this.getInventoryPlayer());
+        SINGULARITY = new OptionalSlotRestrictedInput(SlotRestrictedInput.PlacableItemType.QE_SINGULARITY, quantumBridge
+                .getInternalInventory(), this, 0, 80, 37, 0, this.getInventoryPlayer());
         this.addSlotToContainer(SINGULARITY.setStackLimit(1));
 
-        QUANTUM_CARD = new SlotRestrictedInput(SlotRestrictedInput.PlacableItemType.CARD_QUANTUM, quantumBridge
-                .getInternalInventory(), 1, 80, 55, this.getInventoryPlayer());
+        QUANTUM_CARD = new OptionalSlotRestrictedInput(SlotRestrictedInput.PlacableItemType.CARD_QUANTUM, quantumBridge
+                .getInternalInventory(), this, 1, 80, 55, 1, this.getInventoryPlayer());
         this.addSlotToContainer((QUANTUM_CARD).setStackLimit(1));
 
         this.bindPlayerInventory(ip, 0, 166 - /* height of player inventory */82);
     }
 
 
+    @Override
+    public boolean isSlotEnabled(int idx) {
+        if (QUANTUM_CARD.getItemHandler().getStackInSlot(QUANTUM_CARD.slotNumber).isEmpty() &&
+                SINGULARITY.getItemHandler().getStackInSlot(SINGULARITY.slotNumber).isEmpty()) {
+            return true;
+        } else if (idx == 0) {
+            return QUANTUM_CARD.getItemHandler().getStackInSlot(QUANTUM_CARD.slotNumber).isEmpty();
+        } else if (idx == 1) {
+            return SINGULARITY.getItemHandler().getStackInSlot(SINGULARITY.slotNumber).isEmpty();
+        }
+        return false;
+    }
 }

src/main/java/appeng/helpers/WirelessTerminalGuiObject.java

@@ -352,8 +352,7 @@ public class WirelessTerminalGuiObject implements IPortableCell, IActionHost, II
         viewCell.writeToNBT(data, "viewCell");
         upgrades.writeToNBT(data, "upgrades");
     }
-
-    @Override
+    
     public void saveChanges(NBTTagCompound data) {
         if (effectiveItem.getTagCompound() != null) {
             effectiveItem.getTagCompound().merge(data);

src/main/java/appeng/items/tools/powered/ToolWirelessTerminal.java

@@ -26,9 +26,6 @@ import appeng.api.util.IConfigManager;
 import appeng.core.AEConfig;
 import appeng.core.localization.GuiText;
 import appeng.core.sync.GuiBridge;
-import appeng.core.sync.network.NetworkHandler;
-import appeng.core.sync.packets.PacketCraftRequest;
-import appeng.core.sync.packets.PacketTerminalUse;
 import appeng.items.contents.CellConfig;
 import appeng.items.contents.CellUpgrades;
 import appeng.items.materials.ItemMaterial;
@@ -37,7 +34,6 @@ import appeng.util.ConfigManager;
 import appeng.util.Platform;
 import baubles.api.BaubleType;
 import baubles.api.IBauble;
-import net.minecraft.client.settings.KeyBinding;
 import net.minecraft.client.util.ITooltipFlag;
 import net.minecraft.entity.Entity;
 import net.minecraft.entity.EntityLivingBase;
@@ -52,16 +48,11 @@ import net.minecraft.util.math.AxisAlignedBB;
 import net.minecraft.util.math.Vec3d;
 import net.minecraft.util.text.translation.I18n;
 import net.minecraft.world.World;
-import net.minecraftforge.client.event.MouseEvent;
 import net.minecraftforge.fml.common.Optional;
-import net.minecraftforge.fml.common.eventhandler.EventPriority;
-import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
-import net.minecraftforge.fml.common.gameevent.InputEvent;
 import net.minecraftforge.fml.common.network.IGuiHandler;
 import net.minecraftforge.fml.relauncher.Side;
 import net.minecraftforge.fml.relauncher.SideOnly;
 import net.minecraftforge.items.ItemStackHandler;
-import org.lwjgl.input.Keyboard;
 
 import java.util.List;
 

src/main/java/appeng/tile/qnb/TileQuantumBridge.java

@@ -36,6 +36,8 @@ import appeng.tile.grid.AENetworkInvTile;
 import appeng.tile.inventory.AppEngInternalInventory;
 import appeng.util.Platform;
 import appeng.util.inv.InvOperation;
+import appeng.util.inv.filter.AEItemDefinitionFilter;
+import appeng.util.inv.filter.IAEItemFilter;
 import io.netty.buffer.ByteBuf;
 import net.minecraft.block.Block;
 import net.minecraft.item.ItemStack;
@@ -66,6 +68,7 @@ public class TileQuantumBridge extends AENetworkInvTile implements IAEMultiBlock
         this.getProxy().setValidSides(EnumSet.noneOf(EnumFacing.class));
         this.getProxy().setFlags(GridFlags.DENSE_CAPACITY);
         this.getProxy().setIdlePowerUsage(22);
+        this.internalInventory.setFilter(new QuantumBridgeInventoryFilter());
     }
 
     @Override
@@ -292,4 +295,24 @@ public class TileQuantumBridge extends AENetworkInvTile implements IAEMultiBlock
     public byte getCorner() {
         return this.corner;
     }
+
+    private class QuantumBridgeInventoryFilter implements IAEItemFilter {
+
+
+        @Override
+        public boolean allowExtract(IItemHandler inv, int slot, int amount) {
+            return true;
+        }
+
+        @Override
+        public boolean allowInsert(IItemHandler inv, int slot, ItemStack stack) {
+            if (inv.getStackInSlot(0).isEmpty() && inv.getStackInSlot(1).isEmpty() ) {
+                if (slot == 0 && stack.isItemEqual(AEApi.instance().definitions().materials().qESingularity().maybeStack(1).get())) {
+                    return true;
+                } else return slot == 1 && stack.isItemEqual(AEApi.instance().definitions().materials().cardQuantumLink().maybeStack(1).get());
+            } else if (slot == 0 && inv.getStackInSlot(1).isEmpty()) {
+                return true;
+            }else return slot == 1 && inv.getStackInSlot(0).isEmpty();
+        }
+    }
 }

src/main/java/appeng/util/inv/IAEAppEngInventory.java

@@ -20,15 +20,11 @@ package appeng.util.inv;
 
 
 import net.minecraft.item.ItemStack;
-import net.minecraft.nbt.NBTTagCompound;
 import net.minecraftforge.items.IItemHandler;
 
 
 public interface IAEAppEngInventory {
     void saveChanges();
 
-    default void saveChanges(NBTTagCompound data) {
-    }
-
     void onChangeInventory(IItemHandler inv, int slot, InvOperation mc, ItemStack removedStack, ItemStack newStack);
 }