Re-add patch for PlayerSetSpawnEvent (#6977)

src/main/java/net/minecraftforge/event/ForgeEventFactory.java

@@ -62,6 +62,7 @@ import net.minecraft.util.ActionResultType;
 import net.minecraft.util.Direction;
 import net.minecraft.util.Hand;
 import net.minecraft.util.NonNullList;
+import net.minecraft.util.RegistryKey;
 import net.minecraft.util.ResourceLocation;
 import net.minecraft.util.SoundCategory;
 import net.minecraft.util.SoundEvent;
@@ -459,8 +460,9 @@ public class ForgeEventFactory
         MinecraftForge.EVENT_BUS.post(new PlayerFlyableFallEvent(player, distance, multiplier));
     }
 
-    public static boolean onPlayerSpawnSet(PlayerEntity player, BlockPos pos, boolean forced) {
-        return MinecraftForge.EVENT_BUS.post(new PlayerSetSpawnEvent(player, pos, forced));
+    public static boolean onPlayerSpawnSet(PlayerEntity player, RegistryKey<World> world, BlockPos pos, boolean forced)
+    {
+        return MinecraftForge.EVENT_BUS.post(new PlayerSetSpawnEvent(player, world, pos, forced));
     }
 
     public static void onPlayerClone(PlayerEntity player, PlayerEntity oldPlayer, boolean wasDeath)

src/main/java/net/minecraftforge/event/entity/player/PlayerSetSpawnEvent.java

@@ -19,33 +19,50 @@
 
 package net.minecraftforge.event.entity.player;
 
-import net.minecraftforge.eventbus.api.Cancelable;
+import net.minecraft.util.RegistryKey;
+import net.minecraft.world.World;
 import net.minecraft.entity.player.PlayerEntity;
 import net.minecraft.util.math.BlockPos;
+import net.minecraftforge.eventbus.api.Cancelable;
 
-@net.minecraftforge.eventbus.api.Cancelable
+import javax.annotation.Nullable;
+
+/**
+ * This event is fired when a player's spawn point is set or reset.<br>
+ * The event can be canceled, which will prevent the spawn point from being changed.
+ */
+@Cancelable
 public class PlayerSetSpawnEvent extends PlayerEvent
 {
+    private final RegistryKey<World> spawnWorld;
     private final boolean forced;
+    @Nullable
     private final BlockPos newSpawn;
     
-    public PlayerSetSpawnEvent(PlayerEntity player, BlockPos newSpawn, boolean forced) {
+    public PlayerSetSpawnEvent(PlayerEntity player, RegistryKey<World> spawnWorld, @Nullable BlockPos newSpawn, boolean forced)
+    {
         super(player);
+        this.spawnWorld = spawnWorld;
         this.newSpawn = newSpawn;
         this.forced = forced;
     }
 
-    /**
-     * This event is called before a player's spawn point is changed.
-     * The event can be canceled, and no further processing will be done.
-     */
     public boolean isForced()
     {
         return forced;
     }
 
+    /**
+     * The new spawn position, or null if the spawn position is being reset.
+     */
+    @Nullable
     public BlockPos getNewSpawn()
     {
         return newSpawn;
     }
+
+    public RegistryKey<World> getSpawnWorld()
+    {
+        return spawnWorld;
+    }
 }