Client-server syncing (#295)

* Sync carpet settings

* Sync tick rate

src/main/java/carpet/mixins/ClientPlayNetworkHandlerMixin.java

@@ -0,0 +1,44 @@
+package carpet.mixins;
+
+import carpet.CarpetServer;
+import carpet.helpers.ClientNetworkHandler;
+import net.minecraft.client.MinecraftClient;
+import net.minecraft.client.network.ClientPlayNetworkHandler;
+import net.minecraft.nbt.CompoundTag;
+import net.minecraft.nbt.ListTag;
+import net.minecraft.nbt.Tag;
+import net.minecraft.network.packet.s2c.play.CustomPayloadS2CPacket;
+import net.minecraft.util.Identifier;
+import net.minecraft.util.PacketByteBuf;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+import org.spongepowered.asm.mixin.injection.callback.LocalCapture;
+
+@Mixin(ClientPlayNetworkHandler.class)
+public abstract class ClientPlayNetworkHandlerMixin
+{
+    @Inject(method = "onCustomPayload", at = @At(value = "CONSTANT", args = "stringValue=Unknown custom packed identifier: {}"), cancellable = true, locals = LocalCapture.CAPTURE_FAILSOFT, require = 0)
+    private void onCustomPayloadNotFound(CustomPayloadS2CPacket packet, CallbackInfo ci, Identifier id, PacketByteBuf buf)
+    {
+        if (CarpetServer.CARPET_CHANNEL.equals(id))
+        {
+            if (buf.refCnt() > 0)
+            {
+                buf.release();
+            }
+            
+            ci.cancel();
+        }
+    }
+    
+    @Inject(method = "onCustomPayload", at = @At("HEAD"), cancellable = true)
+    private void onOnCustomPayload(CustomPayloadS2CPacket packet, CallbackInfo ci)
+    {
+        Identifier channel = packet.getChannel();
+        PacketByteBuf buf = packet.getData();
+        ClientNetworkHandler.handleData(channel, buf);
+        ci.cancel();
+    }
+}