实现卓越物品接口物品传输

src/main/java/com/atsuishio/superbwarfare/block/SuperbItemInterfaceBlock.java

@@ -4,10 +4,12 @@ import com.atsuishio.superbwarfare.block.entity.SuperbItemInterfaceBlockEntity;
 import com.atsuishio.superbwarfare.init.ModBlockEntities;
 import com.mojang.serialization.MapCodec;
 import net.minecraft.core.BlockPos;
+import net.minecraft.core.Direction;
 import net.minecraft.world.Containers;
 import net.minecraft.world.InteractionResult;
 import net.minecraft.world.entity.player.Player;
 import net.minecraft.world.inventory.AbstractContainerMenu;
+import net.minecraft.world.item.context.BlockPlaceContext;
 import net.minecraft.world.level.Level;
 import net.minecraft.world.level.block.BaseEntityBlock;
 import net.minecraft.world.level.block.Block;
@@ -21,6 +23,7 @@ import net.minecraft.world.level.block.state.BlockState;
 import net.minecraft.world.level.block.state.StateDefinition;
 import net.minecraft.world.level.block.state.properties.BlockStateProperties;
 import net.minecraft.world.level.block.state.properties.BooleanProperty;
+import net.minecraft.world.level.block.state.properties.DirectionProperty;
 import net.minecraft.world.level.material.MapColor;
 import net.minecraft.world.level.pathfinder.PathComputationType;
 import net.minecraft.world.phys.BlockHitResult;
@@ -33,13 +36,17 @@ public class SuperbItemInterfaceBlock extends BaseEntityBlock {
 
     public static final BooleanProperty ENABLED = BlockStateProperties.ENABLED;
 
+    public static final DirectionProperty FACING = DirectionProperty.create("facing");
+
     public SuperbItemInterfaceBlock() {
         this(BlockBehaviour.Properties.of().mapColor(MapColor.STONE).requiresCorrectToolForDrops().strength(3.0F, 4.8F).sound(SoundType.METAL));
     }
 
     public SuperbItemInterfaceBlock(BlockBehaviour.Properties properties) {
         super(properties);
+
         this.registerDefaultState(this.stateDefinition.any().setValue(ENABLED, true));
+        this.registerDefaultState(this.stateDefinition.any().setValue(FACING, Direction.DOWN));
     }
 
     @Nullable
@@ -55,15 +62,14 @@ public class SuperbItemInterfaceBlock extends BaseEntityBlock {
         return pLevel.isClientSide ? null : createTickerHelper(pBlockEntityType, ModBlockEntities.SUPERB_ITEM_INTERFACE.get(), SuperbItemInterfaceBlockEntity::serverTick);
     }
 
-//    @Override
+    @Nullable
-//    public void setPlacedBy(@NotNull Level pLevel, @NotNull BlockPos pPos, @NotNull BlockState pState, LivingEntity pPlacer, ItemStack pStack) {
+    @Override
-//        if (pStack.get(DataComponents.CUSTOM_NAME) != null) {
+    public BlockState getStateForPlacement(@NotNull BlockPlaceContext context) {
-//            BlockEntity blockentity = pLevel.getBlockEntity(pPos);
+        Direction direction = context.getClickedFace().getOpposite();
-//            if (blockentity instanceof SuperbItemInterfaceBlockEntity entity) {
+        return this.defaultBlockState()
-//                entity.setCustomName(pStack.getHoverName());
+                .setValue(FACING, direction)
-//            }
+                .setValue(ENABLED, true);
-//        }
+    }
-//    }
 
     @Override
     public void onPlace(BlockState pState, @NotNull Level pLevel, @NotNull BlockPos pPos, BlockState pOldState, boolean pIsMoving) {
@@ -137,7 +143,7 @@ public class SuperbItemInterfaceBlock extends BaseEntityBlock {
 
     @Override
     protected void createBlockStateDefinition(StateDefinition.Builder<Block, BlockState> pBuilder) {
-        pBuilder.add(ENABLED);
+        pBuilder.add(ENABLED).add(FACING);
     }
 
     @Override

src/main/java/com/atsuishio/superbwarfare/block/entity/SuperbItemInterfaceBlockEntity.java

@@ -1,5 +1,6 @@
 package com.atsuishio.superbwarfare.block.entity;
 
+import com.atsuishio.superbwarfare.block.SuperbItemInterfaceBlock;
 import com.atsuishio.superbwarfare.init.ModBlockEntities;
 import net.minecraft.core.BlockPos;
 import net.minecraft.core.Direction;
@@ -9,110 +10,80 @@ import net.minecraft.nbt.CompoundTag;
 import net.minecraft.network.chat.Component;
 import net.minecraft.world.Container;
 import net.minecraft.world.ContainerHelper;
-import net.minecraft.world.WorldlyContainer;
+import net.minecraft.world.entity.Entity;
 import net.minecraft.world.entity.player.Inventory;
 import net.minecraft.world.entity.player.Player;
 import net.minecraft.world.inventory.AbstractContainerMenu;
 import net.minecraft.world.item.ItemStack;
 import net.minecraft.world.level.Level;
-import net.minecraft.world.level.block.HopperBlock;
 import net.minecraft.world.level.block.entity.BaseContainerBlockEntity;
 import net.minecraft.world.level.block.state.BlockState;
+import net.minecraft.world.phys.AABB;
+import net.neoforged.neoforge.capabilities.Capabilities;
 import org.jetbrains.annotations.NotNull;
 
 import javax.annotation.ParametersAreNonnullByDefault;
-import java.util.function.BooleanSupplier;
-import java.util.stream.IntStream;
 
 public class SuperbItemInterfaceBlockEntity extends BaseContainerBlockEntity {
 
-    public static final int MOVE_ITEM_SPEED = 64;
+    public static final int TRANSFER_COOLDOWN = 20;
     public static final int CONTAINER_SIZE = 5;
     private NonNullList<ItemStack> items = NonNullList.withSize(CONTAINER_SIZE, ItemStack.EMPTY);
     private int cooldownTime = -1;
-    private long tickedGameTime;
+
+    private Direction facing;
 
 
     public SuperbItemInterfaceBlockEntity(BlockPos pPos, BlockState pBlockState) {
         super(ModBlockEntities.SUPERB_ITEM_INTERFACE.get(), pPos, pBlockState);
+
+        this.facing = pBlockState.getValue(SuperbItemInterfaceBlock.FACING);
     }
 
     public static void serverTick(Level level, BlockPos pos, BlockState state, SuperbItemInterfaceBlockEntity blockEntity) {
         --blockEntity.cooldownTime;
-        blockEntity.tickedGameTime = level.getGameTime();
+        if (blockEntity.isOnCooldown()) return;
-        if (!blockEntity.isOnCooldown()) {
+        blockEntity.setCooldown(TRANSFER_COOLDOWN);
-            blockEntity.setCooldown(0);
+
-//            tryMoveItems(level, pos, state, blockEntity, () -> suckInItems(level, blockEntity));
+        if (blockEntity.isEmpty()) return;
+
+        // find entities
+        var x = pos.getX() + blockEntity.facing.getStepX();
+        var y = pos.getY() + blockEntity.facing.getStepY();
+        var z = pos.getZ() + blockEntity.facing.getStepZ();
+
+        var list = level.getEntities(
+                (Entity) null,
+                new AABB(x - 0.5, y - 0.5, z - 0.5, x + 0.5, y + 0.5, z + 0.5),
+                entity -> entity.getCapability(Capabilities.ItemHandler.ENTITY, null) != null
+        );
+        if (list.isEmpty()) return;
+        var target = list.get(level.random.nextInt(list.size()));
+
+        // item transfer
+
+        var index = -1;
+        for (int i = 0; i < blockEntity.items.size(); i++) {
+            var stack = blockEntity.items.get(i);
+            if (!stack.isEmpty()) {
+                index = i;
+                break;
             }
         }
+        if (index == -1) return;
+
+        var stack = blockEntity.items.get(index);
+        var itemHandler = target.getCapability(Capabilities.ItemHandler.ENTITY, null);
+        assert itemHandler != null;
+
+        for (int i = 0; i < itemHandler.getSlots(); i++) {
+            if (stack.isEmpty()) break;
+
+            stack = itemHandler.insertItem(i, stack, false);
+        }
 
-    private static boolean tryMoveItems(Level pLevel, BlockPos pPos, BlockState pState, SuperbItemInterfaceBlockEntity pBlockEntity, BooleanSupplier pValidator) {
+        blockEntity.items.set(index, stack);
-        if (!pLevel.isClientSide) {
+        blockEntity.setChanged();
-            if (!pBlockEntity.isOnCooldown() && pState.getValue(HopperBlock.ENABLED)) {
-                boolean flag = false;
-                if (!pBlockEntity.isEmpty()) {
-                    flag = ejectItems(pLevel, pPos, pState, pBlockEntity);
-                }
-
-                if (!pBlockEntity.inventoryFull()) {
-                    flag |= pValidator.getAsBoolean();
-                }
-
-                if (flag) {
-                    pBlockEntity.setCooldown(8);
-                    setChanged(pLevel, pPos, pState);
-                    return true;
-                }
-            }
-
-        }
-        return false;
-    }
-
-    private static boolean ejectItems(Level pLevel, BlockPos pPos, BlockState pState, SuperbItemInterfaceBlockEntity pSourceContainer) {
-//        if (net.minecraftforge.items.VanillaInventoryCodeHooks.insertHook(pSourceContainer)) return true;
-//        Container container = getAttachedContainer(pLevel, pPos, pState);
-//        if (container == null) {
-//            return false;
-//        } else {
-        // TODO 替换成开启吸物品的directions
-//            Direction direction = pState.getValue(HopperBlock.FACING).getOpposite();
-//            if (!isFullContainer(container, direction)) {
-//                for (int i = 0; i < pSourceContainer.getContainerSize(); ++i) {
-//                    if (!pSourceContainer.getItem(i).isEmpty()) {
-//                        ItemStack itemstack = pSourceContainer.getItem(i).copy();
-//                        ItemStack itemstack1 = addItem(pSourceContainer, container, pSourceContainer.removeItem(i, 1), direction);
-//                        if (itemstack1.isEmpty()) {
-//                            container.setChanged();
-//                            return true;
-//                        }
-//
-//                        pSourceContainer.setItem(i, itemstack);
-//                    }
-//                }
-//            }
-        return false;
-//        }
-    }
-
-    private static IntStream getSlots(Container pContainer, Direction pDirection) {
-        return pContainer instanceof WorldlyContainer ? IntStream.of(((WorldlyContainer) pContainer).getSlotsForFace(pDirection)) : IntStream.range(0, pContainer.getContainerSize());
-    }
-
-    private static boolean isFullContainer(Container pContainer, Direction pDirection) {
-        return getSlots(pContainer, pDirection).allMatch((p_59379_) -> {
-            ItemStack itemstack = pContainer.getItem(p_59379_);
-            return itemstack.getCount() >= itemstack.getMaxStackSize();
-        });
-    }
-
-    private boolean inventoryFull() {
-        for (ItemStack itemstack : this.items) {
-            if (itemstack.isEmpty() || itemstack.getCount() != itemstack.getMaxStackSize()) {
-                return false;
-            }
-        }
-        return true;
     }
 
     @Override
@@ -139,6 +110,7 @@ public class SuperbItemInterfaceBlockEntity extends BaseContainerBlockEntity {
         return Component.translatable("container.superbwarfare.superb_item_interface");
     }
 
+    // TODO 实现菜单
     @Override
     protected @NotNull AbstractContainerMenu createMenu(int pContainerId, @NotNull Inventory pInventory) {
         return null;
@@ -151,13 +123,7 @@ public class SuperbItemInterfaceBlockEntity extends BaseContainerBlockEntity {
 
     @Override
     public boolean isEmpty() {
-        for (ItemStack itemstack : this.items) {
+        return this.items.stream().allMatch(ItemStack::isEmpty);
-            if (!itemstack.isEmpty()) {
-                return false;
-            }
-        }
-
-        return true;
     }
 
     @Override
@@ -201,10 +167,6 @@ public class SuperbItemInterfaceBlockEntity extends BaseContainerBlockEntity {
         return this.cooldownTime > 0;
     }
 
-    public long getLastUpdateTime() {
-        return this.tickedGameTime;
-    }
-
     @Override
     protected @NotNull NonNullList<ItemStack> getItems() {
         return this.items;

src/main/java/com/atsuishio/superbwarfare/init/ModCapabilities.java

@@ -102,5 +102,11 @@ public class ModCapabilities {
                 (obj, ctx) -> obj.getEnergyStorage()
         );
 
+        // 卓越物品接口
+        event.registerBlockEntity(Capabilities.ItemHandler.BLOCK,
+                ModBlockEntities.SUPERB_ITEM_INTERFACE.get(),
+                (object, context) -> new InvWrapper(object)
+        );
+
     }
 }