added a button to send craft items back

closes #215

src/main/java/de/ellpeck/prettypipes/packets/PacketButton.java

@@ -121,6 +121,10 @@ public record PacketButton(BlockPos pos, int result, List<Integer> data) impleme
             var tile = Utility.getBlockEntity(CraftingTerminalBlockEntity.class, player.level(), pos);
             tile.requestCraftingItems(player, data.getFirst(), data.get(1) > 0);
         }),
+        CRAFT_TERMINAL_SEND_BACK((pos, data, player) -> {
+            var tile = Utility.getBlockEntity(CraftingTerminalBlockEntity.class, player.level(), pos);
+            tile.sendItemsBack();
+        }),
         CANCEL_CRAFTING((pos, data, player) -> {
             var tile = Utility.getBlockEntity(ItemTerminalBlockEntity.class, player.level(), pos);
             tile.cancelCrafting();

src/main/java/de/ellpeck/prettypipes/terminal/CraftingTerminalBlockEntity.java

@@ -26,6 +26,7 @@ import net.minecraft.world.level.ChunkPos;
 import net.minecraft.world.level.block.state.BlockState;
 import net.neoforged.neoforge.items.ItemHandlerHelper;
 import net.neoforged.neoforge.items.ItemStackHandler;
+import net.neoforged.neoforge.items.wrapper.RangedWrapper;
 import net.neoforged.neoforge.network.PacketDistributor;
 import org.apache.commons.lang3.mutable.MutableInt;
 
@@ -139,6 +140,17 @@ public class CraftingTerminalBlockEntity extends ItemTerminalBlockEntity {
         network.endProfile();
     }
 
+    public void sendItemsBack() {
+        var outputInventory = new RangedWrapper(this.items, 6, 12);
+        for (var i = 0; i < this.craftItems.getSlots(); i++) {
+            var stack = this.craftItems.getStackInSlot(i);
+            if (!stack.isEmpty()) {
+                var remain = ItemHandlerHelper.insertItemStacked(outputInventory, stack, false);
+                this.craftItems.setStackInSlot(i, remain);
+            }
+        }
+    }
+
     @Override
     public void saveAdditional(CompoundTag compound, HolderLookup.Provider provider) {
         super.saveAdditional(compound, provider);

src/main/java/de/ellpeck/prettypipes/terminal/containers/CraftingTerminalGui.java

@@ -5,6 +5,7 @@ import de.ellpeck.prettypipes.PrettyPipes;
 import de.ellpeck.prettypipes.packets.PacketButton;
 import net.minecraft.client.gui.GuiGraphics;
 import net.minecraft.client.gui.components.Button;
+import net.minecraft.client.gui.components.Tooltip;
 import net.minecraft.client.gui.screens.Screen;
 import net.minecraft.network.chat.Component;
 import net.minecraft.resources.ResourceLocation;
@@ -12,11 +13,13 @@ import net.minecraft.world.entity.player.Inventory;
 import net.neoforged.neoforge.network.PacketDistributor;
 
 import java.util.Arrays;
+import java.util.List;
 
 public class CraftingTerminalGui extends ItemTerminalGui {
 
     private static final ResourceLocation TEXTURE = ResourceLocation.fromNamespaceAndPath(PrettyPipes.ID, "textures/gui/crafting_terminal.png");
     private Button requestButton;
+    private Button sendBackButton;
 
     public CraftingTerminalGui(ItemTerminalContainer screenContainer, Inventory inv, Component titleIn) {
         super(screenContainer, inv, titleIn);
@@ -32,6 +35,9 @@ public class CraftingTerminalGui extends ItemTerminalGui {
             var force = Screen.hasAltDown() || InputConstants.isKeyDown(this.minecraft.getWindow().getWindow(), 259) ? 1 : 0;
             PacketDistributor.sendToServer(new PacketButton(this.menu.tile.getBlockPos(), PacketButton.ButtonResult.CRAFT_TERMINAL_REQUEST, Arrays.asList(amount, force)));
         }).bounds(this.leftPos + 8, this.topPos + 100, 50, 20).build());
+        this.sendBackButton = this.addRenderableWidget(Button.builder(Component.literal(">"), button -> {
+            PacketDistributor.sendToServer(new PacketButton(this.menu.tile.getBlockPos(), PacketButton.ButtonResult.CRAFT_TERMINAL_SEND_BACK, List.of()));
+        }).bounds(this.leftPos + 47, this.topPos + 72, 12, 12).build());
         this.tick();
     }
 
@@ -40,12 +46,14 @@ public class CraftingTerminalGui extends ItemTerminalGui {
         super.containerTick();
         var tile = this.getCraftingContainer().getTile();
         this.requestButton.active = false;
+        this.sendBackButton.active = false;
         for (var i = 0; i < tile.craftItems.getSlots(); i++) {
-            var stack = tile.getRequestedCraftItem(i);
+            var requestStack = tile.getRequestedCraftItem(i);
-            if (!stack.isEmpty() && stack.getCount() < stack.getMaxStackSize()) {
+            if (!requestStack.isEmpty() && requestStack.getCount() < requestStack.getMaxStackSize())
                 this.requestButton.active = true;
-                break;
+            var realStack = tile.craftItems.getStackInSlot(i);
-            }
+            if (!realStack.isEmpty())
+                this.sendBackButton.active = true;
         }
     }