TRoW: Fix some TODOs and add more

data/campaigns/The_Rise_Of_Wesnoth/scenarios/04a_The_Swamp_of_Esten.cfg

@@ -390,6 +390,7 @@
         [message]
             speaker=Prince Haldric
             message= _ "Careful, you don’t know what’s lurking in there!"
+            #TODO: Have Haldric say something else (or nothing) if he moves to the temple
         [/message]
         [unit]
             side=1

data/campaigns/The_Rise_Of_Wesnoth/scenarios/04b_The_Midlands.cfg

@@ -244,6 +244,10 @@
         [/allow_undo]
     [/event]
 
+    #TODO: In 4b we get Minister Edren AND Sir Ruddry, so we have 2 loyal units
+    #who are recalled in every following scenario. Here we get only Sir Ladoc,
+    #so 1 loyal unit only. This should be somehow rebalanced
+
     [event]
         name=attack
 

data/campaigns/The_Rise_Of_Wesnoth/scenarios/05_The_Oldwood.cfg

@@ -312,11 +312,7 @@
             share_vision=all
         [/modify_side]
         [redraw]
-            side=4
-        [/redraw]
-        # Note: don't merge these two [redraw]s into one without testing
-        [redraw]
-            side=1
+            side=1,4
         [/redraw]
 
         [message]

data/campaigns/The_Rise_Of_Wesnoth/scenarios/12_A_Final_Spring.cfg

@@ -471,6 +471,10 @@
             facing=sw
         [/unit]
 
+        #TODO: This is the first time we meet Jevyan and nobody has told us about his
+        #existence before. Despite all this, only Jessene shows surprise, as if Haldric
+        #knows who he is, and at the end of the scenario we get no further information.
+
         [message]
             speaker=Lich-Lord Jevyan
             message= _ "King Addroran, your day is done. Prepare to be ground to dust. If you’re lucky I may raise you from death for my own amusement. Oh, and what’s this? I sense, I sense the Ruby of Fire."

data/campaigns/The_Rise_Of_Wesnoth/scenarios/19_The_Vanguard.cfg

@@ -146,9 +146,18 @@
     [event]
         name=prestart
 
-        # TODO: better random locations
-        {VARIABLE_OP xx1 rand "10..18"}
-        {VARIABLE_OP yy1 rand "2..6"}
+        [store_locations]
+            terrain=Gg
+            x=11-18
+            y=2-6
+            variable=possible_chest_locs
+        [/store_locations]
+        {RANDOM "0..$($possible_chest_locs.length - 1)"}
+
+        {VARIABLE xx1 $possible_chest_locs[$random].x}
+        {VARIABLE yy1 $possible_chest_locs[$random].y}
+
+        {CLEAR_VARIABLE possible_chest_locs,random}
 
         {PLACE_IMAGE (items/chest-plain-closed.png) $xx1 $yy1}