From bfcb40bd0062ef2312c4beaaf20e4444ba7eed77 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Sun, 29 Jul 2018 22:58:47 -0400
Subject: [PATCH] MC-111480: Start Entity ID's at 1

DataWatchers that store Entity ID's treat 0 as special,
and can break things such as Elytra Fireworks.

diff --git a/src/main/java/net/minecraft/server/Entity.java b/src/main/java/net/minecraft/server/Entity.java
index 71ea64fe7..2d2edbd33 100644
--- a/src/main/java/net/minecraft/server/Entity.java
+++ b/src/main/java/net/minecraft/server/Entity.java
@@ -90,7 +90,7 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, Ke
     private static final List<ItemStack> a = Collections.emptyList();
     private static final AxisAlignedBB b = new AxisAlignedBB(0.0D, 0.0D, 0.0D, 0.0D, 0.0D, 0.0D);
     private static double c = 1.0D;
-    private static int entityCount;
+    private static int entityCount = 1; // Paper - MC-111480 - ID 0 is treated as special for DataWatchers, start 1
     private final EntityTypes<?> g; public EntityTypes<?> getEntityType() { return g; } // Paper - OBFHELPER
     private int id;
     public boolean j; public boolean blocksEntitySpawning() { return j; } // Paper - OBFHELPER
-- 
2.21.0