Replaced hewn cave walls with doofus-01's new mine walls

Slightly modified versions for wall-chasm transitions still need to be added.

Old definition for earthy hewn cave walls set as hidden but kept for compatibility; gets drawn exactly the same as the normal walls now.

changelog

@@ -5,6 +5,8 @@ Version 1.13.4+dev:
 Version 1.13.4:
  * Language and i18n:
    * Updated translations: British English, Russian
+ * Graphics:
+   * Improved or new terrain graphics: Mine Walls (replaces Hewn Cave Walls).
  * User interface:
    * Fix vertical alignment of individual attacks listed in the Attack Unit
      dialog.

data/core/terrain-graphics.cfg

@@ -675,12 +675,9 @@
 
 {NEW:WALL             (Cud,Kud)      (!,Cud,Kud,X*)                            castle/dwarven-castle}
 
-{NEW:WALL             Xuce           (Qx*,Ql*)                                 cave/earthy-wall-rough-chasm}
-{NEW:WALL             Xuce           (!,Xu*)                                   cave/earthy-wall-hewn}
-{NEW:WALL             Xue,Xuce       (Qx*,Ql*)                                 cave/earthy-wall-rough-chasm}
-{NEW:WALL             Xue,Xuce       (!,Xu*)                                   cave/earthy-wall-rough}
-{NEW:WALL             Xuc,Xue,Xuce   (Qx*,Ql*)                                 cave/wall-rough-chasm}
-{NEW:WALL             Xuc,Xue,Xuce   (!,Xu*)                                   cave/wall-hewn}
+{NEW:WALL             Xue            (Qx*,Ql*)                                 cave/earthy-wall-rough-chasm}
+{NEW:WALL             Xue            (!,Xu*)                                   cave/earthy-wall-rough}
+{NEW:WALL             Xuc,Xuce       (!,Xu*)                                   walls/wall-mine}
 {NEW:WALL             Xu*            (Qx*,Ql*)                                 cave/wall-rough-chasm}
 {NEW:WALL             Xu*            (!,Xu*)                                   cave/wall-rough}
 

data/core/terrain.cfg

@@ -1079,10 +1079,10 @@ Most units have about 50% defense in rocky caves, whereas cavalry are limited to
 
 [terrain_type]
     symbol_image=void/void
-    editor_image=cave/wall-hewn-tile
-    id=cavewall_hewn
-    name= _ "Cave Wall"
-    editor_name= _ "Hewn Cave Wall"
+    editor_image=walls/wall-mine-tile
+    id=minewall
+    name= _ "Mine Wall"
+    editor_name= _ "Mine Wall"
     string=Xuc
     aliasof=Xt
     editor_group=cave,obstacle
@@ -1100,11 +1100,14 @@ Most units have about 50% defense in rocky caves, whereas cavalry are limited to
 [/terrain_type]
 
 [terrain_type]
+    # Made obsolete by new mine walls; drawn exactly like Xuc, but definition kept for compatibility
+    hidden=yes
+    hide_help=yes
     symbol_image=void/void
-    editor_image=cave/earthy-wall-hewn-tile
+    #editor_image=cave/earthy-wall-hewn-tile
     id=cavewall_earthy_hewn
-    name= _ "Cave Wall"
-    editor_name= _ "Reinforced Earthy Cave Wall"
+    name="Cave Wall"
+    editor_name="Reinforced Earthy Cave Wall"
     string=Xuce
     aliasof=Xt
     editor_group=cave,obstacle

players_changelog

@@ -10,6 +10,9 @@ Version 1.13.4:
  * Language and i18n:
    * Updated translations: British English, Russian.
 
+ * Graphics:
+   * Improved or new terrain graphics: Mine Walls (replaces Hewn Cave Walls).
+
  * Miscellaneous and bug fixes:
    * Fix non-deterministic crashes in the Attack Unit dialog (regression
      introduced in 1.13.3).