smarter filtering for the 100xp event

data/scenario-test.cfg

@@ -563,10 +563,16 @@ _s, _s, _s, _s, Aa, Aa, _s, _s, _s, _s
     [event]
         name=moveto
         first_time_only=no
-
-	{MODIFY_UNIT (side=1
-	x=7
-	y=10) experience 100}
+        [filter]
+            x=7
+            y=10
+        [/filter]
+        {VARIABLE_OP unit.experience add 100}
+        [unstore_unit]
+          variable=unit
+          text="100 XP"
+          red,green,blue=200,200,50
+        [/unstore_unit]
     [/event]
 
 [/test]