From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: MrHua269 <novau233@163.com>
Date: Thu, 8 Feb 2024 11:57:18 +0000
Subject: [PATCH] Leaves carpet protocol support


diff --git a/src/main/java/me/earthme/luminol/config/modules/gameplay/LeavesCarpetProtocolSupportConfig.java b/src/main/java/me/earthme/luminol/config/modules/gameplay/LeavesCarpetProtocolSupportConfig.java
new file mode 100644
index 0000000000000000000000000000000000000000..0ef77515b213b74bdcf7dac70a02bfaa1c8804f5
--- /dev/null
+++ b/src/main/java/me/earthme/luminol/config/modules/gameplay/LeavesCarpetProtocolSupportConfig.java
@@ -0,0 +1,22 @@
+package me.earthme.luminol.config.modules.gameplay;
+
+import me.earthme.luminol.config.ConfigInfo;
+import me.earthme.luminol.config.EnumConfigCategory;
+import me.earthme.luminol.config.HotReloadUnsupported;
+import me.earthme.luminol.config.IConfigModule;
+
+public class LeavesCarpetProtocolSupportConfig implements IConfigModule {
+    @HotReloadUnsupported
+    @ConfigInfo(baseName = "enabled")
+    public static boolean enabled = false;
+
+    @Override
+    public EnumConfigCategory getCategory() {
+        return EnumConfigCategory.GAMEPLAY;
+    }
+
+    @Override
+    public String getBaseName() {
+        return "leaves_carpet_protocol";
+    }
+}
diff --git a/src/main/java/top/leavesmc/leaves/protocol/CarpetServerProtocol.java b/src/main/java/top/leavesmc/leaves/protocol/CarpetServerProtocol.java
new file mode 100644
index 0000000000000000000000000000000000000000..0542d66a3dfae2aa3ccb6ca3dced6b34024017ad
--- /dev/null
+++ b/src/main/java/top/leavesmc/leaves/protocol/CarpetServerProtocol.java
@@ -0,0 +1,113 @@
+package top.leavesmc.leaves.protocol;
+
+import me.earthme.luminol.config.modules.gameplay.LeavesCarpetProtocolSupportConfig;
+import net.minecraft.nbt.CompoundTag;
+import net.minecraft.network.FriendlyByteBuf;
+import net.minecraft.network.protocol.common.custom.CustomPacketPayload;
+import net.minecraft.resources.ResourceLocation;
+import net.minecraft.server.MinecraftServer;
+import net.minecraft.server.level.ServerPlayer;
+import org.jetbrains.annotations.Contract;
+import org.jetbrains.annotations.NotNull;
+import top.leavesmc.leaves.protocol.core.LeavesProtocol;
+import top.leavesmc.leaves.protocol.core.ProtocolHandler;
+import top.leavesmc.leaves.protocol.core.ProtocolUtils;
+
+import java.util.HashMap;
+import java.util.Locale;
+import java.util.Map;
+
+@LeavesProtocol(namespace = "carpet")
+public class CarpetServerProtocol {
+
+    public static final String PROTOCOL_ID = "carpet";
+    public static final String VERSION = "leaves-carpet-1.0.0";
+
+    private static final ResourceLocation HELLO_ID = CarpetServerProtocol.id("hello");
+
+    private static final String HI = "69";
+    private static final String HELLO = "420";
+
+    @Contract("_ -> new")
+    public static @NotNull ResourceLocation id(String path) {
+        return new ResourceLocation(PROTOCOL_ID, path);
+    }
+
+    @ProtocolHandler.PlayerJoin
+    public static void onPlayerJoin(ServerPlayer player) {
+        if (LeavesCarpetProtocolSupportConfig.enabled) {
+            CompoundTag data = new CompoundTag();
+            data.putString(HI, VERSION);
+            ProtocolUtils.sendPayloadPacket(player, new CarpetPayload(data));
+        }
+    }
+
+    @ProtocolHandler.PayloadReceiver(payload = CarpetPayload.class, payloadId = "hello")
+    private static void handleHello(@NotNull ServerPlayer player, @NotNull CarpetServerProtocol.CarpetPayload payload) {
+        if (LeavesCarpetProtocolSupportConfig.enabled) {
+            if (payload.nbt.contains(HELLO)) {
+                MinecraftServer.LOGGER.info("Player " + player.getScoreboardName() + " joined with carpet " + payload.nbt.getString(HELLO));
+                CompoundTag data = new CompoundTag();
+                CarpetRules.write(data);
+                ProtocolUtils.sendPayloadPacket(player, new CarpetPayload(data));
+            }
+        }
+    }
+
+    public static class CarpetRules {
+
+        private static final Map<String, CarpetRule> rules = new HashMap<>();
+
+        public static void write(@NotNull CompoundTag tag) {
+            CompoundTag rulesNbt = new CompoundTag();
+            rules.values().forEach(rule -> rule.writeNBT(rulesNbt));
+
+            tag.put("Rules", rulesNbt);
+        }
+
+        public static void register(CarpetRule rule) {
+            rules.put(rule.name, rule);
+        }
+    }
+
+    public record CarpetRule(String identifier, String name, String value) {
+
+        @NotNull
+        @Contract("_, _, _ -> new")
+        public static CarpetRule of(String identifier, String name, Enum<?> value) {
+            return new CarpetRule(identifier, name, value.name().toLowerCase(Locale.ROOT));
+        }
+
+        @NotNull
+        @Contract("_, _, _ -> new")
+        public static CarpetRule of(String identifier, String name, boolean value) {
+            return new CarpetRule(identifier, name, Boolean.toString(value));
+        }
+
+        public void writeNBT(@NotNull CompoundTag rules) {
+            CompoundTag rule = new CompoundTag();
+            rule.putString("Value", value);
+            rule.putString("Manager", identifier);
+            rule.putString("Rule", name);
+            rules.put(name, rule);
+        }
+    }
+
+    public record CarpetPayload(CompoundTag nbt) implements CustomPacketPayload {
+
+        public CarpetPayload(ResourceLocation location, FriendlyByteBuf buf) {
+            this(buf.readNbt());
+        }
+
+        @Override
+        public void write(FriendlyByteBuf buf) {
+            buf.writeNbt(nbt);
+        }
+
+        @Override
+        @NotNull
+        public ResourceLocation id() {
+            return HELLO_ID;
+        }
+    }
+}