From 9b1ac0d3e10d69b913c75f6abbe00818b204d1fc Mon Sep 17 00:00:00 2001
From: "Nut.andor" <nut.andor@posteo.de>
Date: Sat, 28 Jun 2025 20:45:16 +0200
Subject: [PATCH] new item sprite (map objects)

---
 src/com/gpl/rpg/atcontentstudio/model/gamedata/NPC.java | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/com/gpl/rpg/atcontentstudio/model/gamedata/NPC.java b/src/com/gpl/rpg/atcontentstudio/model/gamedata/NPC.java
index aa39ee1..87410af 100644
--- a/src/com/gpl/rpg/atcontentstudio/model/gamedata/NPC.java
+++ b/src/com/gpl/rpg/atcontentstudio/model/gamedata/NPC.java
@@ -333,6 +333,10 @@ public class NPC extends JSONElement {
 		}
 		if (this.icon_id != null) {
 			String spritesheetId = this.icon_id.split(":")[0];
+			if (proj.getSpritesheet(spritesheetId) == null) {
+				Notification.addError("Error Spritesheet "+id+". has no backlink.");
+				return;
+			}
 			proj.getSpritesheet(spritesheetId).addBacklink(this);
 		}