multi Level Cache

src/main/java/slimeknights/tconstruct/smeltery/block/entity/module/MeltingModule.java

@@ -33,7 +33,7 @@ public class MeltingModule implements IMeltingContainer, ContainerData {
   private static final int REQUIRED_TEMP = 2;
 
   /** Tile entity containing this melting module */
-  private final MantleBlockEntity parent;
+  private final MeltingModuleInventory parent;
   /** Function that accepts fluid output from this module */
   private final Predicate<IMeltingRecipe> outputFunction;
   /** Function that boosts the ores based on the rate type */
@@ -78,9 +78,9 @@ private void resetRecipe() {
    */
   public void setStack(ItemStack newStack) {
     // send a slot update to the client when items change, so we can update the TESR
-    Level world = parent.getLevel();
+    Level world = parent.getParent().getLevel();
     if (slotIndex != -1 && world != null && !world.isClientSide && !ItemStack.matches(stack, newStack)) {
-      TinkerNetwork.getInstance().sendToClientsAround(new InventorySlotSyncPacket(newStack, slotIndex, parent.getBlockPos()), world, parent.getBlockPos());
+      TinkerNetwork.getInstance().sendToClientsAround(new InventorySlotSyncPacket(newStack, slotIndex, parent.getParent().getBlockPos()), world, parent.getParent().getBlockPos());
     }
 
     // clear progress if setting to empty or the items do not match
@@ -103,7 +103,7 @@ public void setStack(ItemStack newStack) {
     }
     requiredTime = newTime;
     requiredTemp = newTemp;
-    parent.setChangedFast();
+    parent.getParent().setChangedFast();
   }
 
 
@@ -165,20 +165,30 @@ public void coolItem() {
    */
   @Nullable
   private IMeltingRecipe findRecipe() {
-    Level world = parent.getLevel();
+    Level world = parent.getParent().getLevel();
     if (world == null) {
       return null;
     }
 
     // first, try last recipe for the slot
     IMeltingRecipe last = lastRecipe;
     if (last != null && last.matches(this, world)) {
+      parent.setLastInventoryRecipe(lastRecipe);
       return last;
     }
+
+    // second, try the last recipe from the inventory
+    last = parent.getLastInventoryRecipe();
+    if (last != null && last.matches(this, world)) {
+      lastRecipe = last;
+      return last;
+    }
+
     // if that fails, try to find a new recipe
     Optional<IMeltingRecipe> newRecipe = world.getRecipeManager().getRecipeFor(TinkerRecipeTypes.MELTING.get(), this, world);
     if (newRecipe.isPresent()) {
       lastRecipe = newRecipe.get();
+      parent.setLastInventoryRecipe(lastRecipe);
       return lastRecipe;
     }
     return null;

src/main/java/slimeknights/tconstruct/smeltery/block/entity/module/MeltingModuleInventory.java

@@ -1,5 +1,7 @@
 package slimeknights.tconstruct.smeltery.block.entity.module;
 
+import lombok.Getter;
+import lombok.Setter;
 import net.minecraft.nbt.CompoundTag;
 import net.minecraft.nbt.ListTag;
 import net.minecraft.nbt.Tag;
@@ -26,7 +28,12 @@ public class MeltingModuleInventory implements IItemHandlerModifiable {
   private static final String TAG_ITEMS = "items";
   private static final String TAG_SIZE = "size";
 
+  /** Last used recipe by any slot in the inventory */
+  @Getter
+  @Setter
+  private IMeltingRecipe lastInventoryRecipe;
   /** Parent tile entity */
+  @Getter
   private final MantleBlockEntity parent;
   /** Fluid handler for outputs */
   protected final IFluidHandler fluidHandler;
@@ -134,7 +141,7 @@ public MeltingModule getModule(int slot) {
       throw new IndexOutOfBoundsException();
     }
     if (modules[slot] == null) {
-      modules[slot] = new MeltingModule(parent, recipe -> tryFillTank(slot, recipe), oreRate, slot);
+      modules[slot] = new MeltingModule(this, recipe -> tryFillTank(slot, recipe), oreRate, slot);
     }
     return modules[slot];
   }