Add VanillaGameEvent to allow for globally listening to vanilla's GameEvents (#8472)

src/main/java/net/minecraftforge/common/ForgeHooks.java

@@ -69,6 +69,7 @@ import net.minecraft.world.entity.EquipmentSlot;
 import net.minecraft.world.item.*;
 import net.minecraft.world.item.crafting.RecipeType;
 import net.minecraft.world.level.block.Block;
+import net.minecraft.world.level.gameevent.GameEvent;
 import net.minecraft.world.level.storage.WorldData;
 import net.minecraft.world.level.storage.loot.LootContext;
 import net.minecraft.world.level.storage.loot.LootTable;
@@ -136,6 +137,7 @@ import net.minecraftforge.event.DifficultyChangeEvent;
 import net.minecraftforge.event.ForgeEventFactory;
 import net.minecraftforge.event.ItemAttributeModifierEvent;
 import net.minecraftforge.event.ServerChatEvent;
+import net.minecraftforge.event.VanillaGameEvent;
 import net.minecraftforge.event.entity.EntityAttributeCreationEvent;
 import net.minecraftforge.event.entity.EntityAttributeModificationEvent;
 import net.minecraftforge.event.entity.EntityEvent;
@@ -427,6 +429,11 @@ public class ForgeHooks
         return event.getEntityItem();
     }
 
+    public static boolean onVanillaGameEvent(Level level, @Nullable Entity cause, GameEvent vanillaEvent, BlockPos position)
+    {
+        return !MinecraftForge.EVENT_BUS.post(new VanillaGameEvent(level, cause, vanillaEvent, position));
+    }
+
     @Nullable
     public static Component onServerChatEvent(ServerGamePacketListenerImpl net, String raw, Component comp)
     {

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

@@ -0,0 +1,89 @@
+/*
+ * Minecraft Forge
+ * Copyright (c) 2016-2022.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation version 2.1
+ * of the License.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+package net.minecraftforge.event;
+
+import javax.annotation.Nullable;
+import net.minecraft.core.BlockPos;
+import net.minecraft.world.entity.Entity;
+import net.minecraft.world.level.Level;
+import net.minecraft.world.level.gameevent.GameEvent;
+import net.minecraftforge.common.MinecraftForge;
+import net.minecraftforge.eventbus.api.Cancelable;
+import net.minecraftforge.eventbus.api.Event;
+
+/**
+ * VanillaGameEvent is fired on the server whenever one of Vanilla's {@link GameEvent GameEvents} fire. <br>
+ * <br>
+ * This allows for listening to Vanilla's events in a more structured and global way that is not tied to needing a block entity listener. <br>
+ * <br>
+ * This event is fired on the {@link MinecraftForge#EVENT_BUS}. <br>
+ * <br>
+ * Cancel this event to prevent Vanilla from posting the {@link GameEvent} to all nearby {@link net.minecraft.world.level.gameevent.GameEventListener GameEventListeners}.
+ **/
+@Cancelable
+public class VanillaGameEvent extends Event
+{
+    private final Level level;
+    @Nullable
+    private final Entity cause;
+    private final GameEvent vanillaEvent;
+    private final BlockPos position;
+
+    public VanillaGameEvent(Level level, @Nullable Entity cause, GameEvent vanillaEvent, BlockPos position)
+    {
+        this.level = level;
+        this.cause = cause;
+        this.vanillaEvent = vanillaEvent;
+        this.position = position;
+    }
+
+    /**
+     * @return The level the Vanilla {@link GameEvent} occurred.
+     */
+    public Level getLevel()
+    {
+        return level;
+    }
+
+    /**
+     * @return The entity that was the source or "cause" of the {@link GameEvent}.
+     */
+    @Nullable
+    public Entity getCause()
+    {
+        return cause;
+    }
+
+    /**
+     * @return The Vanilla event.
+     */
+    public GameEvent getVanillaEvent()
+    {
+        return vanillaEvent;
+    }
+
+    /**
+     * @return The position the event took place at. This may be a block or the block position of the entity targeted.
+     */
+    public BlockPos getEventPosition()
+    {
+        return position;
+    }
+}