Tools/ue_build_demo_map.py

@@ -305,8 +305,16 @@ def build():
             log(f"could not create {MAP}")
             return
 
-    removed = clear(("Demo_", "PlayerStart", "Hero_Facade", "Frontage_", "RetailTrim_",
+    # Repeat until nothing is left: destroying actors while iterating a snapshot can miss
-                     "ShotSequencer"))
+    # some, which is how two Demo_Vehicle_Sedan actors survived into a saved map and the
+    # scene audit failed on a duplicate label.
+    removed = 0
+    for _ in range(4):
+        pass_removed = clear(("Demo_", "PlayerStart", "Hero_Facade", "Frontage_",
+                              "RetailTrim_", "ShotSequencer"))
+        removed += pass_removed
+        if pass_removed == 0:
+            break
     log(f"cleared {removed} previous demo actors")
 
     # --- lighting: fixed daytime ------------------------------------------
@@ -647,20 +655,48 @@ def build():
           unreal.Rotator(pitch=0.0, yaw=90.0, roll=0.0))
     log("staged: Demo_PlayerStart on the cut north sidewalk, facing south (+Y)")
 
-    # The drivable sedan, parked on the carriageway east of the spawn so a review camera
+    # --- vehicle ---------------------------------------------------------
-    # can frame both. Collision and mass come from PA_Vehicle_Sedan; AGigLineVehicle
+    # The physics pawn and the visible panels are staged as two things on purpose: the
-    # configures the Chaos wheels from the modelled dimensions.
+    # probe showed the meshes render as plain StaticMeshActors while the same meshes
+    # attached to the vehicle pawn stay invisible, so the visuals do not depend on the
+    # pawn until that is solved. A visible car that does not drive yet beats an invisible
+    # one that does.
+    vehicle_origin = unreal.Vector(-12950.0, -900.0, 470.0)
+
     vehicle_class = unreal.load_class(None, "/Script/GigLine.GigLineVehicle")
     if vehicle_class:
-        # Spawn ON the road: a downward trace measured the surface at Z 366 cm there, so
+        vehicle = spawn(vehicle_class, vehicle_origin, "Demo_Vehicle_Sedan")
-        # the previous Z 120 spawn buried the car 2.5 m inside the ground - which is why
-        # it was invisible in the capture while its shadow still fell on the surface.
-        vehicle = spawn(vehicle_class, unreal.Vector(-12950.0, -900.0, 470.0),
-                        "Demo_Vehicle_Sedan")
         log(f"staged: Demo_Vehicle_Sedan ({'ok' if vehicle else 'FAILED'})")
     else:
         log("staged: Demo_Vehicle_Sedan skipped - class not found")
 
+    panels = (
+        ("SM_Vehicle_Body", unreal.Vector(0.0, 0.0, -72.0)),
+        ("SM_Vehicle_Glass", unreal.Vector(0.0, 0.0, -72.0)),
+        ("SM_Vehicle_Light_Front", unreal.Vector(0.0, 0.0, -72.0)),
+        ("SM_Vehicle_Light_Rear", unreal.Vector(0.0, 0.0, -72.0)),
+        ("SM_Vehicle_Mirrors", unreal.Vector(0.0, 0.0, -72.0)),
+        ("SM_Vehicle_Wheel", unreal.Vector(139.0, 81.0, -88.0)),
+        ("SM_Vehicle_Wheel", unreal.Vector(139.0, -81.0, -88.0)),
+        ("SM_Vehicle_Wheel", unreal.Vector(-139.0, 81.0, -88.0)),
+        ("SM_Vehicle_Wheel", unreal.Vector(-139.0, -81.0, -88.0)),
+    )
+    staged_panels = 0
+    for index, (mesh_name, offset) in enumerate(panels):
+        mesh = unreal.EditorAssetLibrary.load_asset(f"/Game/Hollywood/Vehicle/{mesh_name}")
+        if not mesh:
+            log(f"vehicle panel {mesh_name}: MISSING")
+            continue
+        actor = spawn(unreal.StaticMeshActor, vehicle_origin + offset,
+                      f"Demo_VehiclePanel_{index:02d}")
+        if actor:
+            comp = actor.get_component_by_class(unreal.StaticMeshComponent)
+            if comp:
+                comp.set_static_mesh(mesh)
+                comp.set_mobility(unreal.ComponentMobility.MOVABLE)
+            staged_panels += 1
+    log(f"staged: {staged_panels} Demo_VehiclePanel actors (plain static meshes)")
+
     # A lockable LFS .umap checks out read-only, which makes save_map silently
     # return False — chmod u+w first or the staged actors never persist.
     umap = os.path.join(unreal.Paths.project_dir(), MAP.replace("/Game/", "Content/") + ".umap")