Kotlin i Java

crafting new rubies --kind kotlin
cd rubies && gradle build

cd crafting && ./gradlew :crafting-api:publishToMavenLocal

plugins { kotlin("jvm") version "2.4.21" }

repositories { mavenCentral(); mavenLocal() }

dependencies {
    compileOnly("dev.crafting:crafting-api:0.1.0")
}

kotlin { jvmToolchain(25) } // Minecraft 26.x działa na Javie 25

rubies/
├── build.gradle.kts
├── settings.gradle.kts
└── src/main/
    ├── kotlin/com/example/rubies/
    │   ├── RubiesMod.kt         entry point: only wires the parts
    │   ├── RubiesConfig.kt      player settings
    │   ├── content/
    │   │   ├── Items.kt
    │   │   ├── Blocks.kt
    │   │   ├── Creatures.kt
    │   │   ├── Sounds.kt
    │   │   ├── Particles.kt
    │   │   └── Recipes.kt
    │   ├── storage/
    │   │   └── Visits.kt        saved data: the keys, in one place
    │   ├── events/
    │   │   ├── MiningEvents.kt
    │   │   ├── CombatEvents.kt
    │   │   └── WelcomeEvents.kt
    │   ├── ui/
    │   │   └── ShopForm.kt       forms: what the player sees
    │   └── commands/
    │       ├── RubyCommand.kt
    │       └── ShopCommand.kt
    └── resources/
        ├── crafting.mod.json
        └── assets/rubies/
            ├── sounds/ruby/chime.ogg
            └── textures/
                ├── item/ruby.png
                ├── entity/ruby_golem.png
                └── particle/ruby_spark_0.png, ruby_spark_1.png

{
  "id": "rubies",
  "name": "Rubies",
  "version": "1.0.0",
  "kind": "mod",
  "side": "both",
  "entrypoints": ["com.example.rubies.RubiesMod"],
  "depends": { "crafting": ">=0.1.0" }
}

interface CraftingMod {
    fun onLoad(ctx: ModContext)
    fun onReady(ctx: ModContext) {}
    fun onShutdown(ctx: ModContext) {}
}

crafting new chatguard --kind plugin

package com.example.chatguard

class ChatGuardPlugin : CraftingMod {
    override fun onLoad(ctx: ModContext) {
        ChatFilter.register()
        Crafting.commands.command("guard") {
            permission = "chatguard.admin"
            executes { it.reply("ChatGuard jest aktywny") }
        }
    }

    override fun onShutdown(ctx: ModContext) = ctx.logger.info("ChatGuard wyłączony")
}

package com.example.chatguard.events

object ChatFilter {
    private val blocked = listOf("spam", "scam")

    fun register() {
        Crafting.events.on<PlayerChatEvent> { e ->
            if (blocked.any { it in e.message.lowercase() }) {
                e.cancel()
                e.player.send("&cBądź miły, proszę")
            }
        }
    }
}

package com.example.rubies;

public final class RubiesMod implements CraftingMod {
    @Override
    public void onLoad(ModContext ctx) {
        ContentBuilder content = new ContentBuilder(ctx.getMetadata().getId(), Crafting.INSTANCE.getRegistries());
        Items.register(content);
        WelcomeEvents.register();
    }
}

package com.example.rubies.events;

public final class WelcomeEvents {
    public static void register() {
        Crafting.INSTANCE.getEvents().subscribe(PlayerJoinEvent.class, EventPriority.NORMAL, false, null, e -> {
            e.getPlayer().send("&aWelcome, " + e.getPlayer().getName() + "!");
            return Unit.INSTANCE;
        });
    }
}