The Exporter now round-robins over every configured item or fluid to export instead of exporting them all at once.

CHANGELOG.md

@@ -19,6 +19,7 @@
 - An empty blacklist now means: accept any item. An empty whitelist now means: don't accept any item (an empty whitelist USED to mean: accept any item) (raoulvdberge)
 - Any mod can now add JSON Solderer recipes without requiring the API, by putting the JSONs in their assets directory in a "solderer_recipes" directory (raoulvdberge)
 - The Importer now skips over empty slots (raoulvdberge)
+- The Exporter now round-robins over every configured item or fluid to export instead of exporting them all at once (raoulvdberge)
 - Updated Russian translation (kellixon)
 
 ### 1.5.34

src/main/java/com/raoulvdberge/refinedstorage/apiimpl/network/node/NetworkNodeExporter.java

@@ -36,6 +36,8 @@ public class NetworkNodeExporter extends NetworkNode implements IComparable, ITy
     private int compare = IComparer.COMPARE_NBT | IComparer.COMPARE_DAMAGE;
     private int type = IType.ITEMS;
 
+    private int filterSlot;
+
     public NetworkNodeExporter(World world, BlockPos pos) {
         super(world, pos);
     }
@@ -54,8 +56,19 @@ public class NetworkNodeExporter extends NetworkNode implements IComparable, ITy
                 IItemHandler handler = WorldUtils.getItemHandler(getFacingTile(), getDirection().getOpposite());
 
                 if (handler != null) {
-                    for (int i = 0; i < itemFilters.getSlots(); ++i) {
-                        ItemStack slot = itemFilters.getStackInSlot(i);
+                    while (filterSlot + 1 < itemFilters.getSlots() && itemFilters.getStackInSlot(filterSlot).isEmpty()) {
+                        filterSlot++;
+                    }
+
+                    // We jump out of the loop above if we reach the maximum slot. If the maximum slot is empty,
+                    // we waste a tick with doing nothing because it's empty. Hence this check. If we are at the last slot
+                    // and it's empty, go back to slot 0.
+                    // We also handle if we exceeded the maximum slot in general.
+                    if ((filterSlot == itemFilters.getSlots() - 1 && itemFilters.getStackInSlot(filterSlot).isEmpty()) || (filterSlot >= itemFilters.getSlots())) {
+                        filterSlot = 0;
+                    }
+
+                    ItemStack slot = itemFilters.getStackInSlot(filterSlot);
 
                     if (!slot.isEmpty()) {
                         int stackSize = upgrades.getItemInteractCount();
@@ -74,13 +87,29 @@ public class NetworkNodeExporter extends NetworkNode implements IComparable, ITy
                             }
                         }
                     }
-                    }
+
+                    filterSlot++;
                 }
             } else if (type == IType.FLUIDS) {
+                FluidStack[] fluids = fluidFilters.getFluids();
+
+                while (filterSlot + 1 < fluids.length && fluids[filterSlot] == null) {
+                    filterSlot++;
+                }
+
+                // We jump out of the loop above if we reach the maximum slot. If the maximum slot is empty,
+                // we waste a tick with doing nothing because it's empty. Hence this check. If we are at the last slot
+                // and it's empty, go back to slot 0.
+                // We also handle if we exceeded the maximum slot in general.
+                if ((filterSlot == fluids.length - 1 && fluids[filterSlot] == null) || (filterSlot >= fluids.length)) {
+                    filterSlot = 0;
+                }
+
                 IFluidHandler handler = WorldUtils.getFluidHandler(getFacingTile(), getDirection().getOpposite());
 
                 if (handler != null) {
-                    for (FluidStack stack : fluidFilters.getFluids()) {
+                    FluidStack stack = fluids[filterSlot];
+
                     if (stack != null) {
                         FluidStack stackInStorage = network.getFluidStorageCache().getList().get(stack, compare);
 
@@ -96,13 +125,12 @@ public class NetworkNodeExporter extends NetworkNode implements IComparable, ITy
                                     took = network.extractFluid(stack, filled, compare, false);
 
                                     handler.fill(took, true);
+                                }
+                            }
+                        }
+                    }
 
-                                        break;
-                                    }
-                                }
-                            }
-                        }
-                    }
+                    filterSlot++;
                 }
             }
         }

src/main/java/com/raoulvdberge/refinedstorage/apiimpl/network/node/NetworkNodeImporter.java

@@ -108,6 +108,7 @@ public class NetworkNodeImporter extends NetworkNode implements IComparable, IFi
                         if (remainder != null) {
                             toDrain.amount -= remainder.amount;
                         }
+
                         handler.drain(toDrain, true);
                     }
                 }