Detect wrecks that have seamark and not historic tags.

Update changelog for release.

Author: Andy Townsend

changelog.md

@@ -1,16 +1,17 @@
 # Changes made to this rendering
 This page describes changes made in these projects: [SomeoneElse-style](https://github.com/SomeoneElseOSM/SomeoneElse-style), [SomeoneElse-style-legend](https://github.com/SomeoneElseOSM/SomeoneElse-style-legend) and [openstreetmap-carto-AJT](https://github.com/SomeoneElseOSM/openstreetmap-carto-AJT), and visible [on this site](//map.atownsend.org.uk/maps/map/map.html).  Since 2025 this also includes changes to lua code shared between raster and vector processing - hence the notes below about which a particular change applies to.  See [this changelog](https://github.com/SomeoneElseOSM/SomeoneElse-vector-extract/blob/main/resources/changelog_sve01.md) for where changes here affect the vector schema, and also other vector-only ones.
 
-## As yet unreleased
+## 15/02/2026
 (raster, vector) Handle `amenity=dressing_room`
 (raster, vector) Handle `amenity=reception_desk`
 (raster, vector) Handle `amenity=payment_terminal`
 (raster, vector) Added `amenity=prep_school` to list of nonspecific shops.
 (raster, vector) Fixed bug whereby `oneway=no` was missed when deciding if a road was one way or not.
 (raster, vector) Handle `intermittent=dry` as intermittent.
 (raster, vector) Use `motorcar` on BOATs in the same way as `motor_vehicle` to check for TROs.
+(raster, vector) Detect wrecks that have `seamark` and not `historic` tags.
 
-## Raster as yet unreleased, vector 09/02/2026
+## Raster 15/02/2026, vector 09/02/2026
 (raster, vector) Include some `route=horse` along with `network=nhn` etc. to show horse routes.
 (raster, vector) Detect wet meadows that are tagged as `meadow=wet_meadow`.
 (raster, vector) Treat `meadow=mown` like `meadow=hay`.

shared_lua.lua

@@ -3320,6 +3320,17 @@ function consolidate_lua_03_t( passedt )
       passedt.leisure = "pitch"
    end
 
+-- ----------------------------------------------------------------------------
+-- Before we start doing comparisons that include historic=wreck, make sure 
+-- that we have caught them all.
+-- ----------------------------------------------------------------------------
+   if ((  passedt["seamark:type"]              == "wreck"      ) and
+       (  passedt["seamark:wreck:water_level"] ~= "submerged"  ) and
+       (( passedt.historic                     == nil         )  or
+        ( passedt.historic                     == ""          ))) then
+      passedt.historic = "wreck"
+   end
+
 -- ----------------------------------------------------------------------------
 -- Things that are both viewpoints or attractions and monuments or memorials 
 -- should render as the latter.  Some are handled further down too.

taginfo.json

@@ -1,7 +1,7 @@
 {
   "data_format": 1,
   "data_url": "https://raw.githubusercontent.com/SomeoneElseOSM/SomeoneElse-style/master/taginfo.json",
-  "data_updated": "20260212T175901Z",
+  "data_updated": "20260215T152502Z",
   "project": {
     "name": "SomeoneElse: Rural pedestrian CartoCSS maps",
     "description": "This map style is designed for England and Wales-based rural pedestrians.  It shows public rights of way and long distance paths.",
@@ -3103,10 +3103,13 @@
     { "key": "scramble", "value": "yes", "description": "Shown as intermediate trail" },
     { "key": "seamark:rescue_station:category", "description": "Lifeboats" },
     { "key": "seamark:rescue_station:category", "value": "lifeboat_on_mooring", "description": "Lifeboats" },
-    { "key": "seamark:type", "description": "Coast guards and marine farms" },
+    { "key": "seamark:type", "description": "Detect some seamark tags that are regular OSM features not mapped with regular OSM tags" },
     { "key": "seamark:type", "value": "coastguard_station", "description": "Coast guards" },
     { "key": "seamark:type", "value": "marine_farm", "description": "Show marine farms as commercial landuse" },
     { "key": "seamark:type", "value": "pipeline_submarine", "description": "Show pipelines" },
+    { "key": "seamark:type", "value": "wreck", "description": "If not submerged, synonym for 'historic=wreck'.  Shown as building and as a historic red wreck", "icon_url": "https://raw.githubusercontent.com/SomeoneElseOSM/openstreetmap-carto-AJT/master/symbols/historic_wreck.png" },
+    { "key": "seamark:wreck:water_level", "description": "Used to detect non-submerged wrecks" },
+    { "key": "seamark:wreck:water_level", "value": "submerged", "description": "Any value other than this is treated as not submerged" },
     { "key": "segregated", "description": "Detect sidewalks" },
     { "key": "segregated", "value": "right", "description": "Detect sidewalks" },
     { "key": "segregated", "value": "yes", "description": "Detect sidewalks" },