From 376d0cfc0249db2d9e2ed71e0d4d554160470abb Mon Sep 17 00:00:00 2001
From: Victor Giers <mail@victorgiers.com>
Date: Wed, 13 May 2026 13:13:54 +0200
Subject: [PATCH] Add validation for spline corridor junctions in scene
 document

---
 src/document/scene-document-validation.ts | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/src/document/scene-document-validation.ts b/src/document/scene-document-validation.ts
index aa2305ca..38e3fde6 100644
--- a/src/document/scene-document-validation.ts
+++ b/src/document/scene-document-validation.ts
@@ -8801,6 +8801,26 @@ export function validateSceneDocument(
     validateScenePath(pathValue, path, document, diagnostics);
   }
 
+  for (const [junctionKey, junction] of Object.entries(
+    document.splineCorridorJunctions
+  )) {
+    const path = `splineCorridorJunctions.${junctionKey}`;
+
+    if (junction.id !== junctionKey) {
+      diagnostics.push(
+        createDiagnostic(
+          "error",
+          "spline-corridor-junction-id-mismatch",
+          "Spline corridor junction ids must match their registry key.",
+          `${path}.id`
+        )
+      );
+    }
+
+    registerAuthoredId(junction.id, path, seenIds, diagnostics);
+    validateSplineCorridorJunction(junction, path, document, diagnostics);
+  }
+
   for (const [terrainKey, terrain] of Object.entries(document.terrains)) {
     const path = `terrains.${terrainKey}`;