From 819514a69905b5baeef82689619e7d68bb3a32fc Mon Sep 17 00:00:00 2001
From: Frank Bauer <developer@ambertation.de>
Date: Sun, 8 Aug 2021 17:24:29 +0200
Subject: [PATCH] Start Hello process when player joins (not on enter)

---
 .../bclib/api/dataexchange/DataHandler.java   | 24 ++++++++++++-------
 .../api/dataexchange/handler/HelloServer.java |  2 +-
 src/main/java/ru/bclib/gui/GridScreen.java    |  3 ++-
 3 files changed, 19 insertions(+), 10 deletions(-)

diff --git a/src/main/java/ru/bclib/api/dataexchange/DataHandler.java b/src/main/java/ru/bclib/api/dataexchange/DataHandler.java
index c9912843..7545d6cb 100644
--- a/src/main/java/ru/bclib/api/dataexchange/DataHandler.java
+++ b/src/main/java/ru/bclib/api/dataexchange/DataHandler.java
@@ -19,6 +19,19 @@ import org.jetbrains.annotations.NotNull;
 import java.nio.charset.StandardCharsets;
 
 public abstract class DataHandler {
+	
+	public abstract static class WithoutPayload extends DataHandler{
+		protected WithoutPayload(ResourceLocation identifier, boolean originatesOnServer) {
+			super(identifier, originatesOnServer);
+		}
+		
+		protected void serializeData(FriendlyByteBuf buf) {
+		}
+		
+		protected void deserializeFromIncomingData(FriendlyByteBuf buf, PacketSender responseSender, boolean isClient){
+		}
+	}
+	
 	private final boolean originatesOnServer;
 	@NotNull
 	private final ResourceLocation identifier;
@@ -49,14 +62,9 @@ public abstract class DataHandler {
 		server.execute(() -> runOnGameThread(null, server, false));
 	}
 
-	protected void serializeData(FriendlyByteBuf buf) {
-	}
-
-	protected void deserializeFromIncomingData(FriendlyByteBuf buf, PacketSender responseSender, boolean isClient){
-	}
-	
-	protected void runOnGameThread(Minecraft client, MinecraftServer server, boolean isClient){
-	}
+	abstract protected void serializeData(FriendlyByteBuf buf) ;
+	abstract protected void deserializeFromIncomingData(FriendlyByteBuf buf, PacketSender responseSender, boolean isClient);
+	abstract protected void runOnGameThread(Minecraft client, MinecraftServer server, boolean isClient);
 
 	final protected boolean reply(DataHandler message, MinecraftServer server){
 		if (lastMessageSender==null) return false;
diff --git a/src/main/java/ru/bclib/api/dataexchange/handler/HelloServer.java b/src/main/java/ru/bclib/api/dataexchange/handler/HelloServer.java
index 57fb5668..ec42f1d9 100644
--- a/src/main/java/ru/bclib/api/dataexchange/handler/HelloServer.java
+++ b/src/main/java/ru/bclib/api/dataexchange/handler/HelloServer.java
@@ -55,7 +55,7 @@ import java.io.File;
  * </table>
  */
 public class HelloServer extends DataHandler {
-	public static DataHandlerDescriptor DESCRIPTOR = new DataHandlerDescriptor(new ResourceLocation(BCLib.MOD_ID, "hello_server"), HelloServer::new, false, true);
+	public static DataHandlerDescriptor DESCRIPTOR = new DataHandlerDescriptor(new ResourceLocation(BCLib.MOD_ID, "hello_server"), HelloServer::new, true, false);
 	
 	protected String bclibVersion ="0.0.0";
 	public HelloServer() {
diff --git a/src/main/java/ru/bclib/gui/GridScreen.java b/src/main/java/ru/bclib/gui/GridScreen.java
index fb93cd7d..2a00d126 100644
--- a/src/main/java/ru/bclib/gui/GridScreen.java
+++ b/src/main/java/ru/bclib/gui/GridScreen.java
@@ -26,7 +26,8 @@ public abstract class GridScreen extends Screen {
 	protected abstract void initLayout();
 	
 	public void render(PoseStack poseStack, int i, int j, float f) {
-		this.renderBackground(poseStack);
+		//this.renderBackground(poseStack);
+		this.renderDirtBackground(i);
 		drawCenteredString(poseStack, this.font, this.title, grid.width / 2, grid.getTopStart(), 16777215);
 		if (grid!=null) grid.render(poseStack);
 		super.render(poseStack, i, j, f);