Add EntityFertilizeEggEvent

paper-server/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java

@@ -2195,4 +2195,28 @@ public class CraftEventFactory {
         return event.callEvent();
     }
     // Paper end
+
+    // Paper start - add EntityFertilizeEggEvent
+    /**
+     * Calls the {@link io.papermc.paper.event.entity.EntityFertilizeEggEvent}.
+     * If the event is cancelled, this method also resets the love on both the {@code breeding} and {@code other} entity.
+     *
+     * @param breeding the entity on which #spawnChildFromBreeding was called.
+     * @param other    the partner of the entity.
+     * @return the event after it was called. The instance may be used to retrieve the experience of the event.
+     */
+    public static io.papermc.paper.event.entity.EntityFertilizeEggEvent callEntityFertilizeEggEvent(Animal breeding, Animal other) {
+        ServerPlayer serverPlayer = breeding.getLoveCause();
+        if (serverPlayer == null) serverPlayer = other.getLoveCause();
+        final int experience = breeding.getRandom().nextInt(7) + 1; // From Animal#spawnChildFromBreeding(ServerLevel, Animal)
+
+        final io.papermc.paper.event.entity.EntityFertilizeEggEvent event = new io.papermc.paper.event.entity.EntityFertilizeEggEvent((LivingEntity) breeding.getBukkitEntity(), (LivingEntity) other.getBukkitEntity(), serverPlayer == null ? null : serverPlayer.getBukkitEntity(), breeding.breedItem == null ? null : CraftItemStack.asCraftMirror(breeding.breedItem).clone(), experience);
+        if (!event.callEvent()) {
+            breeding.resetLove();
+            other.resetLove(); // stop the pathfinding to avoid infinite loop
+        }
+
+        return event;
+    }
+    // Paper end - add EntityFertilizeEggEvent
 }