1 files changed, 98 insertions, 0 deletions
diff --git a/patches/server/0559-Added-WorldGameRuleChangeEvent.patch b/patches/server/0559-Added-WorldGameRuleChangeEvent.patch
new file mode 100644
index 0000000000..86de4a1af6
--- /dev/null
+++ b/patches/server/0559-Added-WorldGameRuleChangeEvent.patch
@@ -0,0 +1,98 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Jake Potrebic <[email protected]>
+Date: Sun, 20 Dec 2020 16:41:44 -0800
+Subject: [PATCH] Added WorldGameRuleChangeEvent
+
+
+diff --git a/src/main/java/net/minecraft/server/commands/GameRuleCommand.java b/src/main/java/net/minecraft/server/commands/GameRuleCommand.java
+index 1b66c33a55a9516269c80f5052fb103418b11367..745b8724b7536a5b2c2c94ae8fd703ea755e8072 100644
+--- a/src/main/java/net/minecraft/server/commands/GameRuleCommand.java
++++ b/src/main/java/net/minecraft/server/commands/GameRuleCommand.java
+@@ -33,7 +33,7 @@ public class GameRuleCommand {
+         CommandSourceStack commandlistenerwrapper = (CommandSourceStack) context.getSource();
+         T t0 = commandlistenerwrapper.getLevel().getGameRules().getRule(key); // CraftBukkit
+ 
+-        t0.setFromArgument(context, "value");
++        t0.setFromArgument(context, "value", key); // Paper
+         commandlistenerwrapper.sendSuccess(Component.translatable("commands.gamerule.set", key.getId(), t0.toString()), true);
+         return t0.getCommandResult();
+     }
+diff --git a/src/main/java/net/minecraft/world/level/GameRules.java b/src/main/java/net/minecraft/world/level/GameRules.java
+index 800325a544bb9f228ccbeb0a52d7f380a8c6083e..3c93bfeb94168f832904a8462ae23b06e81e080d 100644
+--- a/src/main/java/net/minecraft/world/level/GameRules.java
++++ b/src/main/java/net/minecraft/world/level/GameRules.java
+@@ -262,10 +262,10 @@ public class GameRules {
+             this.type = type;
+         }
+ 
+-        protected abstract void updateFromArgument(CommandContext<CommandSourceStack> context, String name);
++        protected abstract void updateFromArgument(CommandContext<CommandSourceStack> context, String name, GameRules.Key<T> gameRuleKey); // Paper
+ 
+-        public void setFromArgument(CommandContext<CommandSourceStack> context, String name) {
+-            this.updateFromArgument(context, name);
++        public void setFromArgument(CommandContext<CommandSourceStack> context, String name, GameRules.Key<T> gameRuleKey) { // Paper
++            this.updateFromArgument(context, name, gameRuleKey); // Paper
+             this.onChanged(((CommandSourceStack) context.getSource()).getServer());
+         }
+ 
+@@ -323,8 +323,11 @@ public class GameRules {
+         }
+ 
+         @Override
+-        protected void updateFromArgument(CommandContext<CommandSourceStack> context, String name) {
+-            this.value = BoolArgumentType.getBool(context, name);
++        protected void updateFromArgument(CommandContext<CommandSourceStack> context, String name, GameRules.Key<BooleanValue> gameRuleKey) { // Paper start
++            io.papermc.paper.event.world.WorldGameRuleChangeEvent event = new io.papermc.paper.event.world.WorldGameRuleChangeEvent(context.getSource().getBukkitWorld(), context.getSource().getBukkitSender(), (org.bukkit.GameRule<Boolean>) org.bukkit.GameRule.getByName(gameRuleKey.toString()), String.valueOf(BoolArgumentType.getBool(context, name)));
++            if (!event.callEvent()) return;
++            this.value = Boolean.parseBoolean(event.getValue());
++            // Paper end
+         }
+ 
+         public boolean get() {
+@@ -388,8 +391,11 @@ public class GameRules {
+         }
+ 
+         @Override
+-        protected void updateFromArgument(CommandContext<CommandSourceStack> context, String name) {
+-            this.value = IntegerArgumentType.getInteger(context, name);
++        protected void updateFromArgument(CommandContext<CommandSourceStack> context, String name, GameRules.Key<IntegerValue> gameRuleKey) { // Paper start
++            io.papermc.paper.event.world.WorldGameRuleChangeEvent event = new io.papermc.paper.event.world.WorldGameRuleChangeEvent(context.getSource().getBukkitWorld(), context.getSource().getBukkitSender(), (org.bukkit.GameRule<Integer>) org.bukkit.GameRule.getByName(gameRuleKey.toString()), String.valueOf(IntegerArgumentType.getInteger(context, name)));
++            if (!event.callEvent()) return;
++            this.value = Integer.parseInt(event.getValue());
++            // Paper end
+         }
+ 
+         public int get() {
+diff --git a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
+index b95aed97b48bf31091ee2f44a21ad88071e97bf3..42423b020f9c2ef2ba025b444be076c38314c721 100644
+--- a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
++++ b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
+@@ -1803,8 +1803,13 @@ public class CraftWorld extends CraftRegionAccessor implements World {
+ 
+         if (!this.isGameRule(rule)) return false;
+ 
++        // Paper start
++        GameRule<?> gameRule = GameRule.getByName(rule);
++        io.papermc.paper.event.world.WorldGameRuleChangeEvent event = new io.papermc.paper.event.world.WorldGameRuleChangeEvent(this, null, gameRule, value);
++        if (!event.callEvent()) return false;
++        // Paper end
+         GameRules.Value<?> handle = this.getHandle().getGameRules().getRule(CraftWorld.getGameRulesNMS().get(rule));
+-        handle.deserialize(value);
++        handle.deserialize(event.getValue()); // Paper
+         handle.onChanged(this.getHandle().getServer());
+         return true;
+     }
+@@ -1839,8 +1844,12 @@ public class CraftWorld extends CraftRegionAccessor implements World {
+ 
+         if (!this.isGameRule(rule.getName())) return false;
+ 
++        // Paper start
++        io.papermc.paper.event.world.WorldGameRuleChangeEvent event = new io.papermc.paper.event.world.WorldGameRuleChangeEvent(this, null, rule, String.valueOf(newValue));
++        if (!event.callEvent()) return false;
++        // Paper end
+         GameRules.Value<?> handle = this.getHandle().getGameRules().getRule(CraftWorld.getGameRulesNMS().get(rule.getName()));
+-        handle.deserialize(newValue.toString());
++        handle.deserialize(event.getValue()); // Paper
+         handle.onChanged(this.getHandle().getServer());
+         return true;
+     }