EI S07b: Wake the sea creatures with noise instead of magic

This comes from a discussion about which archaic-sounding pronoun should be
used instead of "you" in "Creatures from the deep, I summon you to destroy this
foe". The conclusion with that was that "thee" or "ye" would sound better, but
"you" is the correct archaic pronoun.

The .ogg file is copied from Northern Rebirth.

data/campaigns/Eastern_Invasion/scenarios/07b_Undead_Crossing.cfg

@@ -131,44 +131,77 @@
 
         [message]
             speaker=Mal-un-Karad
-            message= _ "Creatures from the deep, I summon thee to destroy this foe!"
+            # po: "Wake" doesn't mean "raise undead" here. The reinforcements are sea creatures, they're alive but hidden underwater.
+            message= _ "Time to wake my reinforcements!"
+            scroll=yes
         [/message]
 
-        [scroll_to_unit]
-            id=Mal-un-Karad
-        [/scroll_to_unit]
+        # There is almost certainly a loyal skeleton on 18,5 (the north-west single castle tile).
+        # That skeleton cuts something, and we hear a metal object fall into the sea - no graphics
+        # are needed for the falling object, as it's hidden behind the north-east wall of the
+        # castle. Mal-un-Karad himself is used as a dummy unit to animate so that the sounds play at
+        # the correct time.
+        #
+        # If the skeleton isn't there, just skip this animation and have the sea creatures appear.
+        # The skeleton has a guardian AI, so to make it move before this event triggers would
+        # require the player to end turn with a unit on either 16,9 (beach adjacent to a castle) or
+        # 22,5 (shallow water instead of capturing a village).
+        [if]
+            [have_unit]
+                x,y=18,5
+                side=2
+            [/have_unit]
+            [then]
+                [object]
+                    [filter]
+                        id=Mal-un-Karad
+                    [/filter]
+                    [effect]
+                        apply_to=new_animation
+                        [extra_anim]
+                            # The sound of something heavy and metallic falling into water
+                            flag=wake_sea_creatures
+                            drop_sound_start_time=150
+                            splash_sound_start_time=525
+                            [drop_sound_frame]
+                                sound="gate-fall.ogg"
+                            [/drop_sound_frame]
+                            [splash_sound_frame]
+                                sound="water-blast.wav"
+                            [/splash_sound_frame]
+                        [/extra_anim]
+                    [/effect]
+                [/object]
 
-        [delay]
-            time=250
-        [/delay]
+                [animate_unit]
+                    [filter]
+                        x,y=18,5
+                    [/filter]
+                    flag=attack
+                    with_bars=yes
+                    [facing]
+                        x,y=19,5
+                    [/facing]
+                    [primary_attack]
+                        range=melee
+                    [/primary_attack]
+                    [animate]
+                        [filter]
+                            id=Mal-un-Karad
+                        [/filter]
+                        flag=wake_sea_creatures
+                        with_bars=yes
+                        [facing]
+                            x,y=19,5
+                        [/facing]
+                    [/animate]
+                [/animate_unit]
 
-        [animate_unit]
-            [filter]
-                id=Mal-un-Karad
-            [/filter]
-
-            flag=recruiting
-        [/animate_unit]
-
-        [sound]
-            name=lightning.ogg
-        [/sound]
-
-        [color_adjust]
-            red=100
-            green=100
-            blue=100
-        [/color_adjust]
-
-        [delay]
-            time=10
-        [/delay]
-
-        [color_adjust]
-            red=0
-            green=0
-            blue=0
-        [/color_adjust]
+                [delay]
+                    time=750
+                [/delay]
+            [/then]
+        [/if]
 
         [modify_side]
             side=3