From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Wed, 2 Dec 2020 18:23:26 -0800
Subject: [PATCH] Add cause to Weather/ThunderChangeEvents


diff --git a/src/main/java/net/minecraft/server/level/WorldServer.java b/src/main/java/net/minecraft/server/level/WorldServer.java
index 6aace2155258d8257d53ebfcb20c37ea7497c02c..f68a252378a94c8fcab622d2d89d738aceab45a4 100644
--- a/src/main/java/net/minecraft/server/level/WorldServer.java
+++ b/src/main/java/net/minecraft/server/level/WorldServer.java
@@ -419,8 +419,8 @@ public class WorldServer extends World implements GeneratorAccessSeed {
         this.worldDataServer.setClearWeatherTime(i);
         this.worldDataServer.setWeatherDuration(j);
         this.worldDataServer.setThunderDuration(j);
-        this.worldDataServer.setStorm(flag);
-        this.worldDataServer.setThundering(flag1);
+        this.worldDataServer.setStorm(flag, org.bukkit.event.weather.WeatherChangeEvent.Cause.COMMAND); // Paper
+        this.worldDataServer.setThundering(flag1, org.bukkit.event.weather.ThunderChangeEvent.Cause.COMMAND); // Paper
     }
 
     public BiomeBase getBiomeBySeed(int i, int j, int k) { return a(i, j, k); } // Paper - OBFHELPER
@@ -482,8 +482,8 @@ public class WorldServer extends World implements GeneratorAccessSeed {
                 this.worldDataServer.setThunderDuration(j);
                 this.worldDataServer.setWeatherDuration(k);
                 this.worldDataServer.setClearWeatherTime(i);
-                this.worldDataServer.setThundering(flag1);
-                this.worldDataServer.setStorm(flag2);
+                this.worldDataServer.setThundering(flag1, org.bukkit.event.weather.ThunderChangeEvent.Cause.NATURAL); // Paper
+                this.worldDataServer.setStorm(flag2, org.bukkit.event.weather.WeatherChangeEvent.Cause.NATURAL); // Paper
             }
 
             this.lastThunderLevel = this.thunderLevel;
@@ -885,14 +885,14 @@ public class WorldServer extends World implements GeneratorAccessSeed {
 
     private void clearWeather() {
         // CraftBukkit start
-        this.worldDataServer.setStorm(false);
+        this.worldDataServer.setStorm(false, org.bukkit.event.weather.WeatherChangeEvent.Cause.SLEEP); // Paper - when passing the night
         // If we stop due to everyone sleeping we should reset the weather duration to some other random value.
         // Not that everyone ever manages to get the whole server to sleep at the same time....
         if (!this.worldDataServer.hasStorm()) {
             this.worldDataServer.setWeatherDuration(0);
         }
         // CraftBukkit end
-        this.worldDataServer.setThundering(false);
+        this.worldDataServer.setThundering(false, org.bukkit.event.weather.ThunderChangeEvent.Cause.SLEEP); // Paper - when passing the night
         // CraftBukkit start
         // If we stop due to everyone sleeping we should reset the weather duration to some other random value.
         // Not that everyone ever manages to get the whole server to sleep at the same time....
diff --git a/src/main/java/net/minecraft/world/level/storage/WorldDataServer.java b/src/main/java/net/minecraft/world/level/storage/WorldDataServer.java
index 202d0aea445003a6dc3355ff2f2663cc675d4504..16ebfe8d873ba05521e0a49156325f14e8bd6eb9 100644
--- a/src/main/java/net/minecraft/world/level/storage/WorldDataServer.java
+++ b/src/main/java/net/minecraft/world/level/storage/WorldDataServer.java
@@ -327,6 +327,11 @@ public class WorldDataServer implements IWorldDataServer, SaveData {
 
     @Override
     public void setThundering(boolean flag) {
+        // Paper start
+        this.setThundering(flag, org.bukkit.event.weather.ThunderChangeEvent.Cause.UNKNOWN);
+    }
+    public void setThundering(boolean flag, org.bukkit.event.weather.ThunderChangeEvent.Cause cause) {
+        // Paper end
         // CraftBukkit start
         if (this.thundering == flag) {
             return;
@@ -334,7 +339,7 @@ public class WorldDataServer implements IWorldDataServer, SaveData {
 
         org.bukkit.World world = Bukkit.getWorld(getName());
         if (world != null) {
-            ThunderChangeEvent thunder = new ThunderChangeEvent(world, flag);
+            ThunderChangeEvent thunder = new ThunderChangeEvent(world, flag, cause); // Paper
             Bukkit.getServer().getPluginManager().callEvent(thunder);
             if (thunder.isCancelled()) {
                 return;
@@ -361,6 +366,12 @@ public class WorldDataServer implements IWorldDataServer, SaveData {
 
     @Override
     public void setStorm(boolean flag) {
+        // Paper start
+        this.setStorm(flag, org.bukkit.event.weather.WeatherChangeEvent.Cause.UNKNOWN);
+    }
+
+    public void setStorm(boolean flag, org.bukkit.event.weather.WeatherChangeEvent.Cause cause) {
+        // Paper end
         // CraftBukkit start
         if (this.raining == flag) {
             return;
@@ -368,7 +379,7 @@ public class WorldDataServer implements IWorldDataServer, SaveData {
 
         org.bukkit.World world = Bukkit.getWorld(getName());
         if (world != null) {
-            WeatherChangeEvent weather = new WeatherChangeEvent(world, flag);
+            WeatherChangeEvent weather = new WeatherChangeEvent(world, flag, cause); // Paper
             Bukkit.getServer().getPluginManager().callEvent(weather);
             if (weather.isCancelled()) {
                 return;
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
index 3b3eda95c0ff8b129adedbae6561bba2d01c2f3a..9d858f91828d6c2787ff1dc677a247bcab172701 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
@@ -1470,7 +1470,7 @@ public class CraftWorld implements World {
 
     @Override
     public void setStorm(boolean hasStorm) {
-        world.worldData.setStorm(hasStorm);
+        world.worldDataServer.setStorm(hasStorm, org.bukkit.event.weather.WeatherChangeEvent.Cause.PLUGIN); // Paper
         setWeatherDuration(0); // Reset weather duration (legacy behaviour)
         setClearWeatherDuration(0); // Reset clear weather duration (reset "/weather clear" commands)
     }
@@ -1492,7 +1492,7 @@ public class CraftWorld implements World {
 
     @Override
     public void setThundering(boolean thundering) {
-        world.worldDataServer.setThundering(thundering);
+        world.worldDataServer.setThundering(thundering, org.bukkit.event.weather.ThunderChangeEvent.Cause.PLUGIN); // Paper
         setThunderDuration(0); // Reset weather duration (legacy behaviour)
         setClearWeatherDuration(0); // Reset clear weather duration (reset "/weather clear" commands)
     }