fix commit

scripts/mixin/RollingMachinePreventLockedOverflowMixin.zs

@@ -0,0 +1,31 @@
+#modloaded techreborn
+#loader mixin
+
+import native.net.minecraft.item.ItemStack;
+import native.techreborn.tiles.tier1.TileRollingMachine;
+
+import mixin.CallbackInfoReturnable;
+
+// Prevent inserting items into empty slots of a locked Rolling Machine, to avoid overflow into non-recipe slots
+#mixin {targets: "reborncore.common.tile.RebornMachineTile"}
+zenClass RollingMachinePreventLockedOverflowMixin {
+    // SRG HEAD: TileEntity#isItemValidForSlot -> func_94041_b)
+    #mixin Inject
+    #{
+    #    method: "func_94041_b",
+    #    at: { value: "HEAD" },
+    #    cancellable: true
+    #}
+    function forbidEmptySlotInsertion(index as int, stack as ItemStack, cir as CallbackInfoReturnable) as void {
+        // Injected into RebornMachineTile as isItemValidForSlot is inherited from there
+        // Not overwritten, as the delegated logic is a bit heavy
+        if (!(this instanceof TileRollingMachine)) return;
+
+        val self as TileRollingMachine = this as TileRollingMachine;
+        if (!self.locked) return; // not locked -> leave behavior unchanged
+
+        // If slot is empty, disallow insertion while locked, as it's a non-recipe slot
+        val slotStack as ItemStack = self.inventory.getStackInSlot(index);
+        if (slotStack.isEmpty()) cir.setReturnValue(false);
+    }
+}