Paper/patches/server-unmapped/0508-Fix-Per-World-Difficulty-Remembering-Difficulty.patch
2021-06-11 14:02:28 +02:00

87 lines
5.3 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Sun, 28 Jun 2020 03:59:10 -0400
Subject: [PATCH] Fix Per World Difficulty / Remembering Difficulty
Fixes per world difficulty with /difficulty command and also
makes it so that the server keeps the last difficulty used instead
of restoring the server.properties every single load.
diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
index 69476bb6bca963c5ea88a7cc66622ae599595e62..afdbbe62eba7b4f0ad63c5126c6d21488c4e9a7a 100644
--- a/src/main/java/net/minecraft/server/MinecraftServer.java
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
@@ -1647,11 +1647,15 @@ public abstract class MinecraftServer extends IAsyncTaskHandlerReentrant<TickTas
}
}
- public void a(EnumDifficulty enumdifficulty, boolean flag) {
- if (flag || !this.saveData.isDifficultyLocked()) {
- this.saveData.setDifficulty(this.saveData.isHardcore() ? EnumDifficulty.HARD : enumdifficulty);
- this.updateSpawnFlags();
- this.getPlayerList().getPlayers().forEach(this::b);
+ // Paper start - fix per world difficulty
+ public void setWorldDifficulty(WorldServer world, EnumDifficulty enumdifficulty, boolean forcefullySet) { this.a(world, enumdifficulty, forcefullySet); }
+ public void a(WorldServer world, EnumDifficulty enumdifficulty, boolean flag) {
+ WorldDataServer worldData = world.worldDataServer;
+ if (flag || !worldData.isDifficultyLocked()) {
+ worldData.setDifficulty(worldData.isHardcore() ? EnumDifficulty.HARD : enumdifficulty);
+ world.setSpawnFlags(worldData.getDifficulty() != EnumDifficulty.PEACEFUL && ((DedicatedServer) this).propertyManager.getProperties().spawnMonsters, this.getSpawnAnimals());
+ //this.getPlayerList().getPlayers().forEach(this::b); // Commented: WorldDataServer#setDifficulty handles updating players' difficulties
+ // Paper end
}
}
diff --git a/src/main/java/net/minecraft/server/commands/CommandDifficulty.java b/src/main/java/net/minecraft/server/commands/CommandDifficulty.java
index 1773fa44f55c6f6dcda0afceff4db39881861879..4a43b4632a5cb1e3b5659c9c6c44b42d33bbfcd4 100644
--- a/src/main/java/net/minecraft/server/commands/CommandDifficulty.java
+++ b/src/main/java/net/minecraft/server/commands/CommandDifficulty.java
@@ -7,6 +7,7 @@ import com.mojang.brigadier.exceptions.DynamicCommandExceptionType;
import net.minecraft.commands.CommandListenerWrapper;
import net.minecraft.network.chat.ChatMessage;
import net.minecraft.server.MinecraftServer;
+import net.minecraft.server.level.WorldServer;
import net.minecraft.world.EnumDifficulty;
public class CommandDifficulty {
@@ -41,10 +42,11 @@ public class CommandDifficulty {
public static int a(CommandListenerWrapper commandlistenerwrapper, EnumDifficulty enumdifficulty) throws CommandSyntaxException {
MinecraftServer minecraftserver = commandlistenerwrapper.getServer();
- if (minecraftserver.getSaveData().getDifficulty() == enumdifficulty) {
+ WorldServer world = commandlistenerwrapper.getWorld(); // Paper
+ if (world.worldDataServer.getDifficulty() == enumdifficulty) { // Paper
throw CommandDifficulty.a.create(enumdifficulty.c());
} else {
- minecraftserver.a(enumdifficulty, true);
+ minecraftserver.a(world, enumdifficulty, true); // Paper
commandlistenerwrapper.sendMessage(new ChatMessage("commands.difficulty.success", new Object[]{enumdifficulty.b()}), true);
return 0;
}
diff --git a/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java b/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java
index 29eda296e7ebfbe1f19b7e515401ea85994df833..a5b1f33473e8c82511fdd0c218f4fe744f584de8 100644
--- a/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java
+++ b/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java
@@ -362,7 +362,7 @@ public class DedicatedServer extends MinecraftServer implements IMinecraftServer
@Override
public void updateWorldSettings() {
- this.a(this.getDedicatedServerProperties().difficulty, true);
+ //this.a(this.getDedicatedServerProperties().difficulty, true); // Paper - Don't overwrite level.dat's difficulty, keep current
}
@Override
diff --git a/src/main/java/net/minecraft/server/network/PlayerConnection.java b/src/main/java/net/minecraft/server/network/PlayerConnection.java
index 168fcf3570e5af68d99944dae9a7d7275fb93ff1..a25edac931db8c737c81962bf69233b547d038c7 100644
--- a/src/main/java/net/minecraft/server/network/PlayerConnection.java
+++ b/src/main/java/net/minecraft/server/network/PlayerConnection.java
@@ -3041,7 +3041,7 @@ public class PlayerConnection implements PacketListenerPlayIn {
public void a(PacketPlayInDifficultyChange packetplayindifficultychange) {
PlayerConnectionUtils.ensureMainThread(packetplayindifficultychange, this, this.player.getWorldServer());
if (this.player.k(2) || this.isExemptPlayer()) {
- this.minecraftServer.a(packetplayindifficultychange.b(), false);
+ //this.minecraftServer.a(packetplayindifficultychange.b(), false); // Paper - don't allow clients to change this
}
}