Fixed incorrect tile_num_in_direction usage in ecdogmet and ecpariah

(the first arg should be tile number not object.)

Removed inc_evil_critter from killing radscorpions.
(vanilla script doesn't have this, supposedly a leftover bug from old UP.)

scripts_src/generic/zclscorp.ssl

@@ -62,11 +62,9 @@ procedure critter_p_proc begin
 end
 
 procedure destroy_p_proc begin
-  variable tail := 0;
-  tail := create_object(PID_SCORPION_TAIL,0,0);
-  add_obj_to_inven(self_obj,tail);
-
-  inc_evil_critter
+   variable tail := 0;
+   tail := create_object(PID_SCORPION_TAIL,0,0);
+   add_obj_to_inven(self_obj,tail);
 end
 
 procedure damage_p_proc begin

scripts_src/rndenctr/ecdogmet.ssl

@@ -242,7 +242,7 @@ procedure critter_p_proc begin
          if (game_time > doWalking) then begin
             reg_anim_clear(self_obj);
             reg_anim_begin();
-            self_walk_to_tile(tile_num_in_direction(dude_obj, Random(0, 5), Random(5, 10)));
+            self_walk_to_tile(tile_num_in_direction(dude_tile, Random(0, 5), Random(5, 10)));
             reg_anim_end();
             doWalking := game_time + game_ticks(Random(10, 40));
          end

scripts_src/rndenctr/ecpariah.ssl

@@ -216,7 +216,7 @@ procedure critter_p_proc begin
    end else if (doWalking < game_time) then begin
       reg_anim_clear(self_obj);
       reg_anim_begin();
-      self_walk_to_tile(tile_num_in_direction(dude_obj, Random(0, 5), Random(5, 10)));
+      self_walk_to_tile(tile_num_in_direction(dude_tile, Random(0, 5), Random(5, 10)));
       reg_anim_end();
       doWalking := game_time + (ONE_GAME_SECOND * (Random(1, 30)));
    end