SoF: updated sighted location code in scenario 3

changelog

@@ -25,6 +25,9 @@ Version 1.11.0-svn:
      * Fixed bug #19531: scroll to reinforcement units in Blackwater Port
    * Legend of Wesmere:
      * Fix bug #19577 - some terrain was not snow covered
+   * Sceptre of Fire:
+     * Searching for the Runecrafter: updated the "sighted location" code to
+       make use of [filter_vision], plus a SSF
    * Son of the Black Eye:
      * Removed Al'Brock and Flar'Tar death as defeat condition in objectives in
        Civil War

data/campaigns/Sceptre_of_Fire/scenarios/3_Searching_for_the_Runecrafter.cfg

@@ -267,17 +267,6 @@
             x,y=$thur_x,$thur_y
             terrain=Aa^Vha
         [/terrain]
-        #this is here so that a hacky "location sighted" event can take place
-        #the unit will never actually be seen by the player
-        [unit]
-            side=2
-            type=Galleon
-            x,y=$thur_x,$thur_y
-            ai_special=guardian
-        [/unit]
-        [hide_unit]
-            x,y=$thur_x,$thur_y
-        [/hide_unit]
     [/event]
 
     [event]
@@ -403,17 +392,47 @@
     [/event]
 
     [event]
-        name=sighted
+        name=moveto
+
         [filter]
-            type=Galleon
+            side=1
         [/filter]
-        [kill]
-            x,y=$x1,$y1
-        [/kill]
-        [message]
-            speaker=second_unit
-            message= _ "I see a house in the distance!"
-        [/message]
+        [filter_condition]
+            [have_location]
+                x,y=$thur_x,$thur_y
+                [filter_vision]
+                    visible=yes
+                    respect_fog=yes
+                    side=1
+                [/filter_vision]
+            [/have_location]
+        [/filter_condition]
+
+        [scroll_to]
+            x,y=$thur_x,$thur_y
+        [/scroll_to]
+        [delay]
+            time=250
+        [/delay]
+        [if]
+            [variable]
+                name=unit.id
+                equals=Krawg
+            [/variable]
+            [then]
+                [message]
+                    speaker=Krawg
+                    #po: "I see a house in the distance!"
+                    message= _ "Iii zeee hoose iiin eee d’zztaaan’eee!" # wmllint: no spellcheck
+                [/message]
+            [/then]
+            [else]
+                [message]
+                    speaker=unit
+                    message= _ "I see a house in the distance!"
+                [/message]
+            [/else]
+        [/if]
     [/event]
 
     # Birds reach Thursagan's (variable) location