DoS: Add back Yeti to first room when enemy rando is off

Fixes the soul dropped by Yeti being unobtainable when enemy rando is off.

Author: LagoLunatic

tweaks.rb

@@ -24,13 +24,15 @@ def apply_pre_randomization_tweaks
 
     if GAME == "dos"
       # Remove the enemy and the entity hider hiding that enemy during the intro cutscene from the first room of the vanilla game.
-      # These two just cause more problems than they're worth - the hider can hide starting items, the enemy can hit you as soon as you enter the room, etc.
+      # These two just cause more problems than they're worth - the hider can hide starting items, the enemy can hit you as soon as you enter the room when randomized into something besides the vanilla Yeti, etc.
       entity_hider = game.entity_by_str("00-00-01_0B")
       entity_hider.type = 0
       entity_hider.write_to_rom()
-      enemy = game.entity_by_str("00-00-01_0C")
-      enemy.type = 0
-      enemy.write_to_rom()
+      if options[:randomize_enemies]
+        enemy = game.entity_by_str("00-00-01_0C")
+        enemy.type = 0
+        enemy.write_to_rom()
+      end
     end
 
     if GAME == "ooe"