Drop unimplemented sky scrolling for now

docs/mapinfo.md

@@ -45,7 +45,7 @@ Appends properties to the default map.
 | **Next = _various_** | The behavior when the normal exit is triggered. The following options are supported: <ul> <li>**"\<MapLump\>":** Enter the given map.</li> <li>**EndPic, "\<Lump\>":** End the game, displaying the given lump as an image.</li> <li>**"EndGame1":** End the game, displaying the image from Doom E1.</li>  <li>**"EndGame2":** End the game, displaying the image from Doom E2.</li>  <li>**"EndGame3":** End the game, displaying the horizontal scroller from Doom E3.</li>  <li>**"EndGame4":** End the game, displaying the image from Doom E4.</li>  <li>**"EndGameC":** End the game, displaying the cast from Doom 2.</li>  <li>**EndGame { _properties_ }:** End the game with custom properties: <ul> <li>**Pic = "\<Lump\>":** Display the given lump as an image. If combined with **Cast**, sets the cast background.</li> <li>**HScroll = "\<RightLump\>", "\<LeftLump\>":** Display the horizontal scroller using the given lumps as images.</li> <li>**Cast:** Display the cast.</li> <li>**Music = "\<Lump\>"[, \<Loop\>]:** Play the given lump as music. Optionally set whether the music should loop (1) or not (0). Music loops by default.</li> </ul> If multiple of **Pic**, **HScroll**, and **Cast** are used, only the last one will be used to decide the end game version. </li> </ul> |
 | **SecretNext = _various_** | The behavior when the secret exit is triggered. See the description of **Next** for options. |
 | **Cluster = \<Int\>** | The cluster number the map belongs to. |
-| **Sky1 = "\<Texture\>[, \<ScrollSpeed\>]** | The texture used for the sky. Optionally, supply a scrolling speed (default is 0.0). |
+| **Sky1 = "\<Texture\>"** | The texture used for the sky. |
 | **TitlePatch = "\<Patch\>"[, \<HideAuthorName\>]** | The title patch used on the intermission screen. By default, a graphic will be constructed from the map's **NiceName**. By default, the author name is also shown on the intermission screen. Use a 1 for **HideAuthorName** to hide it instead. |
 | **Par = \<Time\>** | Par time (in seconds) shown on the intermission screen. |
 | **Music = "\<Lump\>"** | The music that plays during the map. |

prboom2/src/dsda/mapinfo/doom/parser.cpp

@@ -262,10 +262,10 @@ static void dsda_ParseDoomMapInfoMapSky(Scanner &scanner, doom_mapinfo_sky_t &sk
   STR_DUP(sky.lump);
   if (scanner.CheckToken(',')) {
     scanner.MustGetFloat();
-    sky.scrollspeed = scanner.decimal;
+    // sky.scrollspeed = scanner.decimal;
   }
   else {
-    sky.scrollspeed = 0.0;
+    // sky.scrollspeed = 0.0;
   }
 }
 

prboom2/src/dsda/mapinfo/doom/parser.h

@@ -41,7 +41,7 @@ typedef struct {
 
 typedef struct {
   char* lump;
-  float scrollspeed;
+  // float scrollspeed;
 } doom_mapinfo_sky_t;
 
 typedef struct {