Fix Duplication Glitch With ME Stocking Bus/Hatch

src/main/java/com/nomiceu/nomilabs/mixin/gregtech/MetaTileEntityMEStockingBusMixin.java

@@ -0,0 +1,58 @@
+package com.nomiceu.nomilabs.mixin.gregtech;
+
+import net.minecraft.util.ResourceLocation;
+
+import org.spongepowered.asm.mixin.Final;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+import gregtech.common.metatileentities.multi.multiblockpart.appeng.MetaTileEntityMEInputBus;
+import gregtech.common.metatileentities.multi.multiblockpart.appeng.MetaTileEntityMEStockingBus;
+
+/**
+ * Fixes Duplication Glitch via Disconnecting from AE2.
+ */
+@Mixin(value = MetaTileEntityMEStockingBus.class, remap = false)
+public abstract class MetaTileEntityMEStockingBusMixin extends MetaTileEntityMEInputBus {
+
+    @Shadow
+    @Final
+    private static int CONFIG_SIZE;
+
+    @Shadow
+    private boolean autoPull;
+
+    @Shadow
+    protected abstract void clearInventory(int startIndex);
+
+    /**
+     * Default Ignored Constructor
+     */
+    public MetaTileEntityMEStockingBusMixin(ResourceLocation metaTileEntityId) {
+        super(metaTileEntityId);
+    }
+
+    @Inject(method = "update",
+            at = @At(value = "INVOKE",
+                     target = "Lgregtech/common/metatileentities/multi/multiblockpart/appeng/MetaTileEntityMEInputBus;update()V",
+                     shift = At.Shift.AFTER),
+            require = 1,
+            cancellable = true)
+    private void checkAe2Disconnect(CallbackInfo ci) {
+        if (!getWorld().isRemote && isWorkingEnabled() && !updateMEStatus()) {
+            // If Disconnected from ME
+            // Don't use Clear Inventory, Config Slots should not change
+            // Unless is Auto Pull
+            if (autoPull) clearInventory(0);
+            else {
+                for (int i = 0; i < CONFIG_SIZE; i++) {
+                    getAEItemHandler().getInventory()[i].setStack(null);
+                }
+            }
+            ci.cancel();
+        }
+    }
+}

src/main/java/com/nomiceu/nomilabs/mixin/gregtech/MetaTileEntityMEStockingHatchMixin.java

@@ -0,0 +1,58 @@
+package com.nomiceu.nomilabs.mixin.gregtech;
+
+import net.minecraft.util.ResourceLocation;
+
+import org.spongepowered.asm.mixin.Final;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+import gregtech.common.metatileentities.multi.multiblockpart.appeng.MetaTileEntityMEInputHatch;
+import gregtech.common.metatileentities.multi.multiblockpart.appeng.MetaTileEntityMEStockingHatch;
+
+/**
+ * Fixes Duplication Glitch via Disconnecting from AE2.
+ */
+@Mixin(value = MetaTileEntityMEStockingHatch.class, remap = false)
+public abstract class MetaTileEntityMEStockingHatchMixin extends MetaTileEntityMEInputHatch {
+
+    @Shadow
+    @Final
+    private static int CONFIG_SIZE;
+
+    @Shadow
+    private boolean autoPull;
+
+    @Shadow
+    protected abstract void clearInventory(int startIndex);
+
+    /**
+     * Default Ignored Constructor
+     */
+    public MetaTileEntityMEStockingHatchMixin(ResourceLocation metaTileEntityId) {
+        super(metaTileEntityId);
+    }
+
+    @Inject(method = "update",
+            at = @At(value = "INVOKE",
+                     target = "Lgregtech/common/metatileentities/multi/multiblockpart/appeng/MetaTileEntityMEInputHatch;update()V",
+                     shift = At.Shift.AFTER),
+            require = 1,
+            cancellable = true)
+    private void checkAe2Disconnect(CallbackInfo ci) {
+        if (!getWorld().isRemote && isWorkingEnabled() && !updateMEStatus()) {
+            // If Disconnected from ME
+            // Don't use Clear Inventory, Config Slots should not change
+            // Unless is Auto Pull
+            if (autoPull) clearInventory(0);
+            else {
+                for (int i = 0; i < CONFIG_SIZE; i++) {
+                    getAEFluidHandler().getInventory()[i].setStack(null);
+                }
+            }
+            ci.cancel();
+        }
+    }
+}

src/main/resources/mixins.nomilabs.gregtech.json

@@ -19,6 +19,8 @@
     "MaterialRecipeHandlerMixin",
     "MaterialStackMixin",
     "MetaItemsMixin",
+    "MetaTileEntityMEStockingBusMixin",
+    "MetaTileEntityMEStockingHatchMixin",
     "MetaTileEntityProcessingArrayMixin",
     "MultiblockInfoCategoryMixin",
     "OreDictUnifierAccessor",