Emerald Generator

src/main/java/de/foxgalaxy/villa/VillaCommand.java

@@ -0,0 +1,46 @@
+package de.foxgalaxy.villa;
+
+import com.mojang.brigadier.CommandDispatcher;
+import com.mojang.brigadier.arguments.IntegerArgumentType;
+import net.minecraft.commands.CommandBuildContext;
+import net.minecraft.commands.CommandSourceStack;
+import net.minecraft.commands.Commands;
+import net.minecraft.commands.arguments.coordinates.BlockPosArgument;
+import net.minecraft.network.chat.Component;
+import net.minecraft.server.permissions.Permissions;
+
+import static net.minecraft.commands.Commands.*;
+
+public class VillaCommand {
+    public static void registerCommand(CommandDispatcher<CommandSourceStack> dispatcher, CommandBuildContext buildContext, Commands.CommandSelection selection) {
+        dispatcher.register(literal("villa")
+                .then(literal("emeraldgen")
+                        .requires(source -> source.permissions().hasPermission(Permissions.COMMANDS_GAMEMASTER))
+                        .then(literal("amount")
+                                .executes(context -> {
+                                    context.getSource().sendSuccess(() -> Component.literal(String.valueOf(context.getSource().getServer().globalAttachments().getAttached(VillaMod.EMERALD_GENERATOR_COUNT))), false);
+                                    return 0;
+                                })
+                                .then(argument("amount", IntegerArgumentType.integer(0))
+                                        .executes(context -> {
+                                            context.getSource().getServer().globalAttachments().setAttached(VillaMod.EMERALD_GENERATOR_COUNT, IntegerArgumentType.getInteger(context, "amount"));
+                                            return 0;
+                                        })
+                                )
+                        )
+                        .then(literal("pos")
+                                .executes(context -> {
+                                    context.getSource().sendSuccess(() -> Component.literal(String.valueOf(context.getSource().getServer().globalAttachments().getAttached(VillaMod.EMERALD_GENERATOR_POS))), false);
+                                    return 0;
+                                })
+                                .then(argument("pos", BlockPosArgument.blockPos())
+                                        .executes(context -> {
+                                            context.getSource().getServer().globalAttachments().setAttached(VillaMod.EMERALD_GENERATOR_POS, BlockPosArgument.getBlockPos(context, "pos"));
+                                            return 0;
+                                        })
+                                )
+                        )
+                )
+        );
+    }
+}

src/main/java/de/foxgalaxy/villa/VillaMod.java

@@ -5,11 +5,21 @@ import net.fabricmc.api.ModInitializer;
 
 import net.fabricmc.fabric.api.attachment.v1.AttachmentRegistry;
 import net.fabricmc.fabric.api.attachment.v1.AttachmentType;
+import net.fabricmc.fabric.api.command.v2.CommandRegistrationCallback;
 import net.fabricmc.fabric.api.entity.event.v1.ServerPlayerEvents;
+import net.fabricmc.fabric.api.event.lifecycle.v1.ServerTickEvents;
+import net.fabricmc.fabric.api.transfer.v1.item.ItemStorage;
+import net.fabricmc.fabric.api.transfer.v1.item.ItemVariant;
+import net.fabricmc.fabric.api.transfer.v1.storage.Storage;
+import net.fabricmc.fabric.api.transfer.v1.transaction.Transaction;
+import net.minecraft.core.BlockPos;
 import net.minecraft.core.registries.Registries;
 import net.minecraft.resources.Identifier;
+import net.minecraft.server.MinecraftServer;
 import net.minecraft.server.level.ServerPlayer;
 import net.minecraft.tags.TagKey;
+import net.minecraft.world.clock.ClockTimeMarkers;
+import net.minecraft.world.clock.WorldClocks;
 import net.minecraft.world.entity.EquipmentSlot;
 import net.minecraft.world.entity.player.Inventory;
 import net.minecraft.world.item.Item;
@@ -30,14 +40,23 @@ public class VillaMod implements ModInitializer {
 					.copyOnDeath()
 	);
 
+	public static final AttachmentType<Integer> EMERALD_GENERATOR_COUNT = AttachmentRegistry.createPersistent(Identifier.fromNamespaceAndPath(MOD_ID, "emerald_generator_count"), Codec.intRange(0, Integer.MAX_VALUE));
+	public static final AttachmentType<BlockPos> EMERALD_GENERATOR_POS = AttachmentRegistry.createPersistent(Identifier.fromNamespaceAndPath(MOD_ID, "emerald_generator_pos"), BlockPos.CODEC);
+
 	@Override
 	public void onInitialize() {
+		CommandRegistrationCallback.EVENT.register(VillaCommand::registerCommand);
 		ServerPlayerEvents.JOIN.register((player) -> {
 			if(!player.getAttachedOrCreate(HAS_JOINED)) {
 				player.setAttached(HAS_JOINED, true);
 				giveEquipment(player);
 			}
 		});
+		ServerTickEvents.END_SERVER_TICK.register(server -> {
+			if(server.overworld().clockManager().isAtTimeMarker(server.registryAccess().getOrThrow(WorldClocks.OVERWORLD), ClockTimeMarkers.DAY)) {
+				insertEmeralds(server);
+			}
+		});
 	}
 
 	public static void giveEquipment(ServerPlayer player) {
@@ -54,4 +73,19 @@ public class VillaMod implements ModInitializer {
 		player.setItemSlot(EquipmentSlot.LEGS, new ItemStack(Items.IRON_LEGGINGS));
 		player.setItemSlot(EquipmentSlot.FEET, new ItemStack(Items.IRON_BOOTS));
 	}
+
+	public static void insertEmeralds(MinecraftServer server) {
+		if(server.globalAttachments().hasAttached(EMERALD_GENERATOR_POS) && server.globalAttachments().hasAttached(EMERALD_GENERATOR_COUNT)) {
+			BlockPos pos = server.globalAttachments().getAttached(EMERALD_GENERATOR_POS);
+			int count = server.globalAttachments().getAttached(EMERALD_GENERATOR_COUNT);
+
+			Storage<ItemVariant> storage = ItemStorage.SIDED.find(server.overworld(), pos, null);
+			if(storage != null) {
+				try (Transaction t = Transaction.openOuter()) {
+					storage.insert(ItemVariant.of(Items.EMERALD), count, t);
+					t.commit();
+				}
+			}
+		}
+	}
 }