Added "tolower", "toupper" script functions

Renamed TravelMarkerDots to TravelMarkerStyles.

artifacts/ddraw.ini

@@ -126,7 +126,7 @@ WorldMapTravelMarkers=0
 ;TravelMarkerColor=134
 ;The length and spacing of the dots in pixels for each type of terrain in worldmap.txt
 ;Syntax is 'length:spacing', with each pair separated by a comma (valid range: 1..10; default is 2)
-;TravelMarkerDots=2:2,2:2,2:2,2:2
+;TravelMarkerStyles=2:2,2:2,2:2,2:2
 
 ;Set to 1 to display terrain types when hovering the cursor over the player's marker on the world map
 WorldMapTerrainInfo=0

artifacts/scripting/headers/sfall.h

@@ -325,6 +325,8 @@
 #define string_format(format, a1, a2)                   sfall_func3("string_format", format, a1, a2)
 #define tile_by_position(x, y)                          sfall_func2("tile_by_position", x, y)
 #define tile_refresh_display                            sfall_func0("tile_refresh_display")
+#define tolower(text)                                   sfall_func1("tolower", text)
+#define toupper(text)                                   sfall_func1("toupper", text)
 #define unjam_lock(obj)                                 sfall_func1("unjam_lock", obj)
 #define unset_unique_id(obj)                            sfall_func2("set_unique_id", obj, -1)
 #define unwield_slot(critter, slot)                     sfall_func2("unwield_slot", critter, slot)

artifacts/scripting/sfall function notes.txt

@@ -697,6 +697,14 @@ optional argument:
 - returns the tile number at the x, y position relative to the top-left corner of the screen
 - if the position is outside of the range of tiles, it will return -1
 
+> string sfall_func1("tolower", string text)
+- converts all uppercase letters in the given string to lowercase
+- returns -1 on argument error
+
+> string sfall_func1("toupper", string text)
+- converts all lowercase letters in the given string to uppercase
+- returns -1 on argument error
+
 ------------------------
 ------ MORE INFO -------
 ------------------------