From a612be60aada1f4e931420d9823bc02df40dcbd3 Mon Sep 17 00:00:00 2001
From: Camotoy <20743703+Camotoy@users.noreply.github.com>
Date: Fri, 21 Oct 2022 14:09:17 -0400
Subject: [PATCH] Warn when custom item name begins with a digit

---
 .../registry/populator/CustomItemRegistryPopulator.java    | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/core/src/main/java/org/geysermc/geyser/registry/populator/CustomItemRegistryPopulator.java b/core/src/main/java/org/geysermc/geyser/registry/populator/CustomItemRegistryPopulator.java
index 1daa6d28d..94e04e972 100644
--- a/core/src/main/java/org/geysermc/geyser/registry/populator/CustomItemRegistryPopulator.java
+++ b/core/src/main/java/org/geysermc/geyser/registry/populator/CustomItemRegistryPopulator.java
@@ -66,6 +66,13 @@ public class CustomItemRegistryPopulator {
         if (!item.customItemOptions().hasCustomItemOptions()) {
             GeyserImpl.getInstance().getLogger().error("The custom item " + item.name() + " has no registration types");
         }
+        String name = item.name();
+        if (name.isEmpty()) {
+            GeyserImpl.getInstance().getLogger().warning("Custom item name is empty?");
+        } else if (Character.isDigit(name.charAt(0))) {
+            // As of 1.19.31
+            GeyserImpl.getInstance().getLogger().warning("Custom item name (" + name + ") begins with a digit. This may cause issues!");
+        }
         return true;
     }