Fix seared furnaces not updating temperature required on stack size c…

…hange (#3733)

src/main/java/slimeknights/tconstruct/smeltery/inventory/ContainerSearedFurnace.java

@@ -19,7 +19,7 @@ public class ContainerSearedFurnace extends ContainerMultiModule<TileSearedFurna
   public ContainerSearedFurnace(InventoryPlayer inventoryPlayer, TileSearedFurnace tile) {
     super(tile);
 
-    sideInventory = new ContainerSideInventory<>(tile, 0, 0, calcColumns());
+    sideInventory = new ContainerSearedFurnaceSideInventory(tile, 0, 0, calcColumns());
     addSubContainer(sideInventory, true);
 
     // player stuffs

src/main/java/slimeknights/tconstruct/smeltery/inventory/ContainerSearedFurnaceSideInventory.java

@@ -0,0 +1,49 @@
+package slimeknights.tconstruct.smeltery.inventory;
+
+import net.minecraft.inventory.Slot;
+import net.minecraft.item.ItemStack;
+import net.minecraftforge.items.IItemHandler;
+import net.minecraftforge.items.SlotItemHandler;
+import slimeknights.tconstruct.smeltery.tileentity.TileSearedFurnace;
+import slimeknights.tconstruct.tools.common.inventory.ContainerSideInventory;
+
+public class ContainerSearedFurnaceSideInventory extends ContainerSideInventory<TileSearedFurnace> {
+
+  public ContainerSearedFurnaceSideInventory(TileSearedFurnace tile, int x, int y, int columns) {
+    super(tile, x, y, columns);
+  }
+
+  @Override
+  protected Slot createSlot(IItemHandler itemHandler, int index, int x, int y) {
+    return new SearedFurnaceSlot(tile, itemHandler, index, x, y);
+  }
+
+  private static class SearedFurnaceSlot extends SlotItemHandler {
+
+    private TileSearedFurnace tile;
+    private int index;
+    public SearedFurnaceSlot(TileSearedFurnace tile, IItemHandler itemHandler, int index, int xPosition, int yPosition) {
+      super(itemHandler, index, xPosition, yPosition);
+      this.tile = tile;
+      this.index = index;
+    }
+
+    @Override
+    public boolean isItemValid(ItemStack stack) {
+      return true;
+    }
+
+    @Override
+    public int getItemStackLimit(ItemStack stack) {
+      return 16;
+    }
+
+    @Override
+    public void onSlotChanged() {
+      // don't update client side, its going to sync in a tick or two
+      if(!tile.getWorld().isRemote) {
+        this.tile.updateHeatRequired(index);
+      }
+    }
+  }
+}

src/main/java/slimeknights/tconstruct/smeltery/tileentity/TileSearedFurnace.java

@@ -76,7 +76,7 @@ public void update() {
 
   /* Grabs the heat for a furnace */
   @Override
-  protected void updateHeatRequired(int index) {
+  public void updateHeatRequired(int index) {
     ItemStack stack = getStackInSlot(index);
     if(!stack.isEmpty()) {
       ItemStack result = FurnaceRecipes.instance().getSmeltingResult(stack);
@@ -88,6 +88,7 @@ protected void updateHeatRequired(int index) {
         }
         else {
           // if its too big, set the error state
+          setHeatRequiredForSlot(index, 0);
           itemTemperatures[index] = -1;
         }