From ec1f04e5cc8aa00706ce44ae6bf8f469b2151130 Mon Sep 17 00:00:00 2001
From: Victor Giers <mail@victorgiers.com>
Date: Sat, 11 Apr 2026 12:13:59 +0200
Subject: [PATCH] Add validation for player start input bindings in
 scene-document-validation.ts

---
 src/document/scene-document-validation.ts | 90 +++++++++++++++++++++++
 1 file changed, 90 insertions(+)

diff --git a/src/document/scene-document-validation.ts b/src/document/scene-document-validation.ts
index 73cb2e7c..8dae149e 100644
--- a/src/document/scene-document-validation.ts
+++ b/src/document/scene-document-validation.ts
@@ -9,6 +9,8 @@ import type { ModelInstance } from "../assets/model-instances";
 import { isModelInstanceCollisionMode } from "../assets/model-instances";
 import {
   isPlayerStartColliderMode,
+  isPlayerStartGamepadBinding,
+  isPlayerStartKeyboardBindingCode,
   isPlayerStartNavigationMode,
   getPlayerStartColliderHeight,
   type InteractableEntity,
@@ -1164,6 +1166,94 @@ function validatePlayerStartEntity(
     );
   }
 
+  if (!isPlayerStartKeyboardBindingCode(entity.inputBindings?.keyboard.moveForward)) {
+    diagnostics.push(
+      createDiagnostic(
+        "error",
+        "invalid-player-start-move-forward-keyboard-binding",
+        "Player Start move-forward keyboard binding must be a supported key code.",
+        `${path}.inputBindings.keyboard.moveForward`
+      )
+    );
+  }
+
+  if (!isPlayerStartKeyboardBindingCode(entity.inputBindings?.keyboard.moveBackward)) {
+    diagnostics.push(
+      createDiagnostic(
+        "error",
+        "invalid-player-start-move-backward-keyboard-binding",
+        "Player Start move-backward keyboard binding must be a supported key code.",
+        `${path}.inputBindings.keyboard.moveBackward`
+      )
+    );
+  }
+
+  if (!isPlayerStartKeyboardBindingCode(entity.inputBindings?.keyboard.moveLeft)) {
+    diagnostics.push(
+      createDiagnostic(
+        "error",
+        "invalid-player-start-move-left-keyboard-binding",
+        "Player Start move-left keyboard binding must be a supported key code.",
+        `${path}.inputBindings.keyboard.moveLeft`
+      )
+    );
+  }
+
+  if (!isPlayerStartKeyboardBindingCode(entity.inputBindings?.keyboard.moveRight)) {
+    diagnostics.push(
+      createDiagnostic(
+        "error",
+        "invalid-player-start-move-right-keyboard-binding",
+        "Player Start move-right keyboard binding must be a supported key code.",
+        `${path}.inputBindings.keyboard.moveRight`
+      )
+    );
+  }
+
+  if (!isPlayerStartGamepadBinding(entity.inputBindings?.gamepad.moveForward)) {
+    diagnostics.push(
+      createDiagnostic(
+        "error",
+        "invalid-player-start-move-forward-gamepad-binding",
+        "Player Start move-forward gamepad binding must be a supported standard-gamepad input.",
+        `${path}.inputBindings.gamepad.moveForward`
+      )
+    );
+  }
+
+  if (!isPlayerStartGamepadBinding(entity.inputBindings?.gamepad.moveBackward)) {
+    diagnostics.push(
+      createDiagnostic(
+        "error",
+        "invalid-player-start-move-backward-gamepad-binding",
+        "Player Start move-backward gamepad binding must be a supported standard-gamepad input.",
+        `${path}.inputBindings.gamepad.moveBackward`
+      )
+    );
+  }
+
+  if (!isPlayerStartGamepadBinding(entity.inputBindings?.gamepad.moveLeft)) {
+    diagnostics.push(
+      createDiagnostic(
+        "error",
+        "invalid-player-start-move-left-gamepad-binding",
+        "Player Start move-left gamepad binding must be a supported standard-gamepad input.",
+        `${path}.inputBindings.gamepad.moveLeft`
+      )
+    );
+  }
+
+  if (!isPlayerStartGamepadBinding(entity.inputBindings?.gamepad.moveRight)) {
+    diagnostics.push(
+      createDiagnostic(
+        "error",
+        "invalid-player-start-move-right-gamepad-binding",
+        "Player Start move-right gamepad binding must be a supported standard-gamepad input.",
+        `${path}.inputBindings.gamepad.moveRight`
+      )
+    );
+  }
+
   if (!isPlayerStartColliderMode(entity.collider.mode)) {
     diagnostics.push(
       createDiagnostic(