Add Golden Hopper

src/main/kotlin/net/shadowfacts/extrahoppers/ExtraHoppers.kt

@@ -3,6 +3,7 @@ package net.shadowfacts.extrahoppers
 import net.fabricmc.api.ModInitializer
 import net.fabricmc.fabric.api.container.ContainerFactory
 import net.fabricmc.fabric.api.container.ContainerProviderRegistry
+import net.shadowfacts.extrahoppers.block.gold.GoldHopperContainer
 import net.shadowfacts.extrahoppers.block.wood.WoodHopperContainer
 import net.shadowfacts.extrahoppers.init.EHBlockEntities
 import net.shadowfacts.extrahoppers.init.EHBlocks
@@ -16,6 +17,7 @@ object ExtraHoppers: ModInitializer {
         EHItems.init()
 
         ContainerProviderRegistry.INSTANCE.registerFactory(WoodHopperContainer.ID, ContainerFactory(WoodHopperContainer.Companion::create))
+        ContainerProviderRegistry.INSTANCE.registerFactory(GoldHopperContainer.ID, ContainerFactory(GoldHopperContainer.Companion::create))
     }
 
 }

src/main/kotlin/net/shadowfacts/extrahoppers/ExtraHoppersClient.kt

@@ -3,6 +3,8 @@ package net.shadowfacts.extrahoppers
 import net.fabricmc.api.ClientModInitializer
 import net.fabricmc.fabric.api.client.screen.ContainerScreenFactory
 import net.fabricmc.fabric.api.client.screen.ScreenProviderRegistry
+import net.shadowfacts.extrahoppers.block.gold.GoldHopperContainer
+import net.shadowfacts.extrahoppers.block.gold.GoldHopperScreen
 import net.shadowfacts.extrahoppers.block.wood.WoodHopperContainer
 import net.shadowfacts.extrahoppers.block.wood.WoodHopperScreen
 
@@ -10,6 +12,7 @@ object ExtraHoppersClient: ClientModInitializer {
 
     override fun onInitializeClient() {
         ScreenProviderRegistry.INSTANCE.registerFactory(WoodHopperContainer.ID, ContainerScreenFactory(WoodHopperScreen.Companion::create))
+        ScreenProviderRegistry.INSTANCE.registerFactory(GoldHopperContainer.ID, ContainerScreenFactory(GoldHopperScreen.Companion::create))
     }
 
 }

src/main/kotlin/net/shadowfacts/extrahoppers/block/base/BaseHopperBlockEntity.kt

@@ -24,9 +24,9 @@ import net.shadowfacts.extrahoppers.util.toVec3d
  */
 abstract class BaseHopperBlockEntity(type: BlockEntityType<*>): BlockEntity(type), Inventory, Hopper, Tickable {
 
-    protected open val inventorySize = 5
+    abstract val inventorySize: Int
-    protected open val maxTransferCooldown = 8
+    abstract val maxTransferCooldown: Int
-    var inventory: DefaultedList<ItemStack> = DefaultedList.ofSize(inventorySize, ItemStack.EMPTY)
+    val inventory: DefaultedList<ItemStack> by lazy { DefaultedList.ofSize(inventorySize, ItemStack.EMPTY) }
     protected var transferCooldown = -1
 
     override fun toTag(tag: CompoundTag): CompoundTag {

src/main/kotlin/net/shadowfacts/extrahoppers/block/base/BaseHopperContainer.kt

@@ -0,0 +1,70 @@
+package net.shadowfacts.extrahoppers.block.base
+
+import net.minecraft.container.Container
+import net.minecraft.container.Slot
+import net.minecraft.entity.player.PlayerEntity
+import net.minecraft.entity.player.PlayerInventory
+import net.minecraft.inventory.Inventory
+import net.minecraft.item.ItemStack
+
+/**
+ * @author shadowfacts
+ */
+abstract class BaseHopperContainer(
+        syncId: Int,
+        playerInv: PlayerInventory,
+        val hopperInv: Inventory
+): Container(null, syncId) {
+
+    init {
+        addHopperSlots()
+
+        // player inv
+        for (y in 0 until 3) {
+            for (x in 0 until 9) {
+                addSlot(Slot(playerInv, x + y * 9 + 9, 8 + x * 18, 51 + y * 18))
+            }
+        }
+        // hotbar
+        for (x in 0 until 9) {
+            addSlot(Slot(playerInv, x, 8 + x * 18, 109))
+        }
+    }
+
+    abstract fun addHopperSlots()
+
+    override fun canUse(player: PlayerEntity): Boolean {
+        return true
+    }
+
+    override fun close(player: PlayerEntity) {
+        super.close(player)
+
+        hopperInv.onInvClose(player)
+    }
+
+    override fun transferSlot(player: PlayerEntity, slotIndex: Int): ItemStack {
+        var remaining = ItemStack.EMPTY
+        val slot = slots[slotIndex]
+        if (slot != null && slot.hasStack()) {
+            val slotStack = slot.stack
+            remaining = slotStack.copy()
+            if (slotIndex < hopperInv.invSize) {
+                if (!insertItem(slotStack, hopperInv.invSize, slots.size, true)) {
+                    return ItemStack.EMPTY;
+                }
+            } else if (!insertItem(slotStack, 0, hopperInv.invSize, false)) {
+                return ItemStack.EMPTY;
+            }
+
+            if (slotStack.isEmpty) {
+                slot.stack = ItemStack.EMPTY;
+            } else {
+                slot.markDirty()
+            }
+        }
+
+        return remaining
+    }
+
+}

src/main/kotlin/net/shadowfacts/extrahoppers/block/base/BaseHopperScreen.kt

@@ -0,0 +1,37 @@
+package net.shadowfacts.extrahoppers.block.base
+
+import com.mojang.blaze3d.platform.GlStateManager
+import net.minecraft.client.gui.screen.ingame.ContainerScreen
+import net.minecraft.entity.player.PlayerInventory
+import net.minecraft.text.Text
+import net.minecraft.util.Identifier
+
+/**
+ * @author shadowfacts
+ */
+abstract class BaseHopperScreen<T: BaseHopperContainer>(
+        container: T,
+        playerInv: PlayerInventory,
+        title: Text
+): ContainerScreen<T>(container, playerInv, title) {
+
+    abstract val background: Identifier
+
+    init {
+        containerHeight = 133
+    }
+
+    override fun drawForeground(mouseX: Int, mouseY: Int) {
+        font.draw(title.asFormattedString(), 8f, 6f, 0x404040)
+        font.draw(playerInventory.displayName.asFormattedString(), 8f, containerHeight - 94f, 0x404040)
+    }
+
+    override fun drawBackground(delta: Float, mouseX: Int, mouseY: Int) {
+        GlStateManager.color4f(1f, 1f, 1f, 1f)
+        minecraft!!.textureManager.bindTexture(background)
+        val x = (width - containerWidth) / 2
+        val y = (height - containerHeight) / 2
+        blit(x, y, 0, 0, containerWidth, containerHeight)
+    }
+
+}

src/main/kotlin/net/shadowfacts/extrahoppers/block/gold/GoldHopperBlock.kt

@@ -0,0 +1,46 @@
+package net.shadowfacts.extrahoppers.block.gold
+
+import net.fabricmc.fabric.api.block.FabricBlockSettings
+import net.fabricmc.fabric.api.container.ContainerProviderRegistry
+import net.minecraft.block.BlockState
+import net.minecraft.block.Material
+import net.minecraft.entity.player.PlayerEntity
+import net.minecraft.sound.BlockSoundGroup
+import net.minecraft.stat.Stats
+import net.minecraft.util.ActionResult
+import net.minecraft.util.Hand
+import net.minecraft.util.Identifier
+import net.minecraft.util.hit.BlockHitResult
+import net.minecraft.util.math.BlockPos
+import net.minecraft.world.BlockView
+import net.minecraft.world.World
+import net.shadowfacts.extrahoppers.block.base.BaseHopperBlock
+
+/**
+ * @author shadowfacts
+ */
+class GoldHopperBlock: BaseHopperBlock<GoldHopperBlockEntity>(
+        FabricBlockSettings.of(Material.METAL)
+                .strength(3f, 6f)
+                .sounds(BlockSoundGroup.METAL)
+                .nonOpaque()
+                .build()
+) {
+
+    companion object {
+        val ID = Identifier("extrahoppers", "gold_hopper")
+    }
+
+    override fun createBlockEntity(world: BlockView) = GoldHopperBlockEntity()
+
+    override fun onUse(state: BlockState, world: World, pos: BlockPos, player: PlayerEntity, hand: Hand, hitResult: BlockHitResult): ActionResult {
+        if (!world.isClient) {
+            player.incrementStat(Stats.INSPECT_HOPPER)
+            ContainerProviderRegistry.INSTANCE.openContainer(GoldHopperContainer.ID, player) { buf ->
+                buf.writeBlockPos(pos)
+            }
+        }
+        return ActionResult.SUCCESS
+    }
+
+}

src/main/kotlin/net/shadowfacts/extrahoppers/block/gold/GoldHopperBlockEntity.kt

@@ -0,0 +1,14 @@
+package net.shadowfacts.extrahoppers.block.gold
+
+import net.shadowfacts.extrahoppers.block.base.BaseHopperBlockEntity
+import net.shadowfacts.extrahoppers.init.EHBlockEntities
+
+/**
+ * @author shadowfacts
+ */
+class GoldHopperBlockEntity: BaseHopperBlockEntity(EHBlockEntities.GOLD_HOPPER) {
+
+    override val inventorySize = 5
+    override val maxTransferCooldown = 4
+
+}

src/main/kotlin/net/shadowfacts/extrahoppers/block/gold/GoldHopperContainer.kt

@@ -0,0 +1,37 @@
+package net.shadowfacts.extrahoppers.block.gold
+
+import net.minecraft.container.Slot
+import net.minecraft.entity.player.PlayerEntity
+import net.minecraft.entity.player.PlayerInventory
+import net.minecraft.inventory.Inventory
+import net.minecraft.util.Identifier
+import net.minecraft.util.PacketByteBuf
+import net.shadowfacts.extrahoppers.block.base.BaseHopperContainer
+import net.shadowfacts.extrahoppers.init.EHBlocks
+
+/**
+ * @author shadowfacts
+ */
+class GoldHopperContainer(
+        syncId: Int,
+        playerInv: PlayerInventory,
+        hopperInv: Inventory
+): BaseHopperContainer(syncId, playerInv, hopperInv) {
+
+    companion object {
+        val ID = Identifier("extrahoppers", "gold_hopper")
+
+        fun create(syncId: Int, identifier: Identifier, player: PlayerEntity, buf: PacketByteBuf): GoldHopperContainer {
+            val pos = buf.readBlockPos()
+            val blockEntity = EHBlocks.GOLD_HOPPER.getBlockEntity(player.world, pos)!!
+            return GoldHopperContainer(syncId, player.inventory, blockEntity)
+        }
+    }
+
+    override fun addHopperSlots() {
+        for (i in 0 until 5) {
+            addSlot(Slot(hopperInv, i, 44 + i * 18, 20))
+        }
+    }
+
+}

src/main/kotlin/net/shadowfacts/extrahoppers/block/gold/GoldHopperScreen.kt

@@ -0,0 +1,24 @@
+package net.shadowfacts.extrahoppers.block.gold
+
+import net.minecraft.client.MinecraftClient
+import net.minecraft.entity.player.PlayerInventory
+import net.minecraft.text.TranslatableText
+import net.minecraft.util.Identifier
+import net.shadowfacts.extrahoppers.block.base.BaseHopperScreen
+
+/**
+ * @author shadowfacts
+ */
+class GoldHopperScreen(
+        container: GoldHopperContainer,
+        playerInv: PlayerInventory
+): BaseHopperScreen<GoldHopperContainer>(container, playerInv, TranslatableText("block.extrahoppers.gold_hopper")) {
+
+    companion object {
+        fun create(container: GoldHopperContainer): GoldHopperScreen {
+            return GoldHopperScreen(container, MinecraftClient.getInstance().player!!.inventory)
+        }
+    }
+
+    override val background = Identifier("minecraft", "textures/gui/container/hopper.png")
+}

src/main/kotlin/net/shadowfacts/extrahoppers/block/wood/WoodHopperContainer.kt

@@ -1,16 +1,19 @@
 package net.shadowfacts.extrahoppers.block.wood
 
-import net.minecraft.container.Container
 import net.minecraft.container.Slot
 import net.minecraft.entity.player.PlayerEntity
 import net.minecraft.entity.player.PlayerInventory
 import net.minecraft.inventory.Inventory
-import net.minecraft.item.ItemStack
 import net.minecraft.util.Identifier
 import net.minecraft.util.PacketByteBuf
+import net.shadowfacts.extrahoppers.block.base.BaseHopperContainer
 import net.shadowfacts.extrahoppers.init.EHBlocks
 
-class WoodHopperContainer(syncId: Int, playerInv: PlayerInventory, val hopperInv: Inventory): Container(null, syncId) {
+class WoodHopperContainer(
+        syncId: Int,
+        playerInv: PlayerInventory,
+        hopperInv: Inventory
+): BaseHopperContainer(syncId, playerInv, hopperInv) {
 
     companion object {
         val ID = Identifier("extrahoppers", "wood_hopper")
@@ -22,53 +25,8 @@ class WoodHopperContainer(syncId: Int, playerInv: PlayerInventory, val hopperInv
         }
     }
 
-    init {
+    override fun addHopperSlots() {
         addSlot(Slot(hopperInv, 0, 80, 20))
-
-        // player inv
-        for (y in 0 until 3) {
-            for (x in 0 until 9) {
-                addSlot(Slot(playerInv, x + y * 9 + 9, 8 + x * 18, 51 + y * 18))
-            }
-        }
-        // hotbar
-        for (x in 0 until 9) {
-            addSlot(Slot(playerInv, x, 8 + x * 18, 109))
-        }
-    }
-
-    override fun canUse(player: PlayerEntity): Boolean {
-        return true
-    }
-
-    override fun close(player: PlayerEntity) {
-        super.close(player)
-
-        hopperInv.onInvClose(player)
-    }
-
-    override fun transferSlot(player: PlayerEntity, slotIndex: Int): ItemStack {
-        var remaining = ItemStack.EMPTY
-        val slot = slots[slotIndex]
-        if (slot != null && slot.hasStack()) {
-            val slotStack = slot.stack
-            remaining = slotStack.copy()
-            if (slotIndex < hopperInv.invSize) {
-                if (!insertItem(slotStack, hopperInv.invSize, slots.size, true)) {
-                    return ItemStack.EMPTY;
-                }
-            } else if (!insertItem(slotStack, 0, hopperInv.invSize, false)) {
-                return ItemStack.EMPTY;
-            }
-
-            if (slotStack.isEmpty) {
-                slot.stack = ItemStack.EMPTY;
-            } else {
-                slot.markDirty()
-            }
-        }
-
-        return remaining
     }
 
 }

src/main/kotlin/net/shadowfacts/extrahoppers/block/wood/WoodHopperScreen.kt

@@ -1,37 +1,22 @@
 package net.shadowfacts.extrahoppers.block.wood
 
-import com.mojang.blaze3d.platform.GlStateManager
 import net.minecraft.client.MinecraftClient
-import net.minecraft.client.gui.screen.ingame.ContainerScreen
 import net.minecraft.entity.player.PlayerInventory
-import net.minecraft.text.LiteralText
+import net.minecraft.text.TranslatableText
 import net.minecraft.util.Identifier
+import net.shadowfacts.extrahoppers.block.base.BaseHopperScreen
 
-class WoodHopperScreen(container: WoodHopperContainer, playerInv: PlayerInventory): ContainerScreen<WoodHopperContainer>(container, playerInv, LiteralText("Wooden Hopper")) {
+class WoodHopperScreen(
+        container: WoodHopperContainer,
+        playerInv: PlayerInventory
+): BaseHopperScreen<WoodHopperContainer>(container, playerInv, TranslatableText("block.extrahoppers.gold_hopper")) {
 
     companion object {
-        val BACKGROUND = Identifier("extrahoppers", "textures/gui/wood_hopper.png")
-
         fun create(container: WoodHopperContainer): WoodHopperScreen {
             return WoodHopperScreen(container, MinecraftClient.getInstance().player!!.inventory)
         }
     }
 
-    init {
+    override val background = Identifier("extrahoppers", "textures/gui/wood_hopper.png")
-        containerHeight = 133
-    }
-
-    override fun drawForeground(mouseX: Int, mouseY: Int) {
-        font.draw(title.asFormattedString(), 8f, 6f, 0x404040)
-        font.draw(playerInventory.displayName.asFormattedString(), 8f, containerHeight - 94f, 0x404040)
-    }
-
-    override fun drawBackground(f: Float, i: Int, j: Int) {
-        GlStateManager.color4f(1f, 1f, 1f, 1f)
-        minecraft!!.textureManager.bindTexture(BACKGROUND)
-        val x = (width - containerWidth) / 2
-        val y = (height - containerHeight) / 2
-        blit(x, y, 0, 0, containerWidth, containerHeight)
-    }
 
 }

src/main/kotlin/net/shadowfacts/extrahoppers/init/EHBlockEntities.kt

@@ -5,15 +5,19 @@ import net.minecraft.block.entity.BlockEntity
 import net.minecraft.block.entity.BlockEntityType
 import net.minecraft.util.Identifier
 import net.minecraft.util.registry.Registry
+import net.shadowfacts.extrahoppers.block.gold.GoldHopperBlock
+import net.shadowfacts.extrahoppers.block.gold.GoldHopperBlockEntity
 import net.shadowfacts.extrahoppers.block.wood.WoodHopperBlock
 import net.shadowfacts.extrahoppers.block.wood.WoodHopperBlockEntity
 
 object EHBlockEntities {
 
     val WOOD_HOPPER = create(::WoodHopperBlockEntity, EHBlocks.WOOD_HOPPER)
+    val GOLD_HOPPER = create(::GoldHopperBlockEntity, EHBlocks.GOLD_HOPPER)
 
     fun init() {
         register(WoodHopperBlock.ID, WOOD_HOPPER)
+        register(GoldHopperBlock.ID, GOLD_HOPPER)
     }
 
     private fun <T: BlockEntity> create(builder: () -> T, block: Block): BlockEntityType<T> {
@@ -24,4 +28,4 @@ object EHBlockEntities {
         Registry.register(Registry.BLOCK_ENTITY_TYPE, id, type)
     }
 
-}
+}

src/main/kotlin/net/shadowfacts/extrahoppers/init/EHBlocks.kt

@@ -3,18 +3,21 @@ package net.shadowfacts.extrahoppers.init
 import net.minecraft.block.Block
 import net.minecraft.util.Identifier
 import net.minecraft.util.registry.Registry
+import net.shadowfacts.extrahoppers.block.gold.GoldHopperBlock
 import net.shadowfacts.extrahoppers.block.wood.WoodHopperBlock
 
 object EHBlocks {
 
     val WOOD_HOPPER = WoodHopperBlock()
+    val GOLD_HOPPER = GoldHopperBlock()
 
     fun init() {
         register(WoodHopperBlock.ID, WOOD_HOPPER)
+        register(GoldHopperBlock.ID, GOLD_HOPPER)
     }
 
     private fun register(id: Identifier, block: Block) {
         Registry.register(Registry.BLOCK, id, block)
     }
 
-}
+}

src/main/kotlin/net/shadowfacts/extrahoppers/init/EHItems.kt

@@ -4,18 +4,21 @@ import net.minecraft.item.BlockItem
 import net.minecraft.item.Item
 import net.minecraft.util.Identifier
 import net.minecraft.util.registry.Registry
+import net.shadowfacts.extrahoppers.block.gold.GoldHopperBlock
 import net.shadowfacts.extrahoppers.block.wood.WoodHopperBlock
 
 object EHItems {
 
     val WOOD_HOPPER = BlockItem(EHBlocks.WOOD_HOPPER, Item.Settings())
+    val GOLD_HOPPER = BlockItem(EHBlocks.GOLD_HOPPER, Item.Settings())
 
     fun init() {
         register(WoodHopperBlock.ID, WOOD_HOPPER)
+        register(GoldHopperBlock.ID, GOLD_HOPPER)
     }
 
     private fun register(id: Identifier, item: Item) {
         Registry.register(Registry.ITEM, id, item)
     }
 
-}
+}

src/main/resources/assets/extrahoppers/blockstates/gold_hopper.json

@@ -0,0 +1,9 @@
+{
+  "variants": {
+    "facing=down": { "model": "extrahoppers:block/gold_hopper" },
+    "facing=north": { "model": "extrahoppers:block/gold_hopper_side" },
+    "facing=south": { "model": "extrahoppers:block/gold_hopper_side", "y": 180 },
+    "facing=west": { "model": "extrahoppers:block/gold_hopper_side", "y": 270 },
+    "facing=east": { "model": "extrahoppers:block/gold_hopper_side", "y": 90 }
+  }
+}

src/main/resources/assets/extrahoppers/lang/en_us.json

@@ -1,3 +1,4 @@
 {
-  "block.extrahoppers.wood_hopper": "Wooden Hopper"
+  "block.extrahoppers.wood_hopper": "Wooden Hopper",
+  "block.extrahoppers.gold_hopper": "Golden Hopper"
 }

src/main/resources/assets/extrahoppers/models/block/gold_hopper.json

@@ -0,0 +1,41 @@
+{
+  "parent": "block/hopper",
+  "textures": {
+    "particle": "block/gold_block",
+    "top": "block/gold_block",
+    "side": "block/gold_block",
+    "inside": "block/gold_block"
+  },
+  "display": {
+    "gui": {
+      "rotation": [ 30, 225, 0 ],
+      "translation": [ 0, 0, 0],
+      "scale":[ 0.625, 0.625, 0.625 ]
+    },
+    "ground": {
+      "rotation": [ 0, 0, 0 ],
+      "translation": [ 0, 3, 0],
+      "scale":[ 0.25, 0.25, 0.25 ]
+    },
+    "fixed": {
+      "rotation": [ 0, 0, 0 ],
+      "translation": [ 0, 0, 0],
+      "scale":[ 0.5, 0.5, 0.5 ]
+    },
+    "thirdperson_righthand": {
+      "rotation": [ 75, 45, 0 ],
+      "translation": [ 0, 2.5, 0],
+      "scale": [ 0.375, 0.375, 0.375 ]
+    },
+    "firstperson_righthand": {
+      "rotation": [ 0, 45, 0 ],
+      "translation": [ 0, 0, 0 ],
+      "scale": [ 0.40, 0.40, 0.40 ]
+    },
+    "firstperson_lefthand": {
+      "rotation": [ 0, 225, 0 ],
+      "translation": [ 0, 0, 0 ],
+      "scale": [ 0.40, 0.40, 0.40 ]
+    }
+  }
+}

src/main/resources/assets/extrahoppers/models/block/gold_hopper_side.json

@@ -0,0 +1,9 @@
+{
+  "parent": "block/hopper_side",
+  "textures": {
+    "particle": "block/gold_block",
+    "top": "block/gold_block",
+    "side": "block/gold_block",
+    "inside": "block/gold_block"
+  }
+}

src/main/resources/assets/extrahoppers/models/item/gold_hopper.json

@@ -0,0 +1,3 @@
+{
+  "parent": "extrahoppers:block/gold_hopper"
+}

src/main/resources/data/extrahoppers/advancements/recipes/gold_hopper.json

@@ -0,0 +1,35 @@
+{
+  "parent": "minecraft:recipes/root",
+  "rewards": {
+    "recipes": [
+      "extrahoppers:gold_hopper"
+    ]
+  },
+  "criteria": {
+    "has_hopper_and_gold": {
+      "trigger": "minecraft:inventory_changed",
+      "conditions": {
+        "items": [
+          {
+            "item": "minecraft:hopper"
+          },
+          {
+            "item": "minecraft:gold_ingot"
+          }
+        ]
+      }
+    },
+    "has_the_recipe": {
+      "trigger": "minecraft:recipe_unlocked",
+      "conditions": {
+        "recipe": "extrahoppers:gold_hopper"
+      }
+    }
+  },
+  "requirements": [
+    [
+      "has_hopper_and_gold",
+      "has_the_recipe"
+    ]
+  ]
+}

src/main/resources/data/extrahoppers/loot_tables/blocks/gold_hopper.json

@@ -0,0 +1,19 @@
+{
+  "type": "minecraft:block",
+  "pools": [
+    {
+      "rolls": 1,
+      "entries": [
+        {
+          "type": "minecraft:item",
+          "name": "extrahoppers:gold_hopper"
+        }
+      ],
+      "conditions": [
+        {
+          "condition": "minecraft:survives_explosion"
+        }
+      ]
+    }
+  ]
+}

src/main/resources/data/extrahoppers/recipes/gold_hopper.json

@@ -0,0 +1,19 @@
+{
+  "type": "minecraft:crafting_shaped",
+  "pattern": [
+    "G G",
+    "GCG",
+    " G "
+  ],
+  "key": {
+    "C": {
+      "item": "minecraft:chest"
+    },
+    "G": {
+      "item": "minecraft:gold_ingot"
+    }
+  },
+  "result": {
+    "item": "extrahoppers:gold_hopper"
+  }
+}