various small sprite updates (#6452) (#6459)

* flip water serpent defense frames

* fix layering issue with lizard tail

* update sea-serpent attack icon

* NE anims for swamp lizard

data/core/units/monsters/Crocodile.cfg

@@ -1,7 +1,11 @@
 #textdomain wesnoth-units
 
+#define CROC_TERRAIN_TEMP
+    Chs*^*,Chw*^*,Cm*^*,Km*^*,W*^*,S*^*,*^Vm
+#enddef
+
 #define CROC_TERRAIN_FILTER_TEMP
-    terrain_type=!,*^B*,Cme*^*,Kme*^*,Wwr*^*,Wwf*^*,!,Chs*^*,Chw*^*,Cm*^*,Km*^*,W*^*,S*^*,*^Vm
+    terrain_type=!,*^B*,Cme*^*,Kme*^*,Wwr*^*,Wwf*^*,!,{CROC_TERRAIN_TEMP}
 #enddef
 
 [unit_type]
@@ -14,6 +18,8 @@
     [standing_anim]
         start_time=-50
         tail_start_time=-50
+        direction=s,sw,se
+        terrain_type=!,{CROC_TERRAIN_TEMP}
         [filter]
             [filter_adjacent]
                 adjacent=ne,nw
@@ -25,34 +31,76 @@
         [tail_frame]
             image="units/monsters/croc/crocodile-tail.png:50"
             layer=-1 # so the tail doesn't get on top of other sprites to the north
+            auto_vflip=no
+            auto_hflip=yes
         [/tail_frame]
     [/standing_anim]
     [standing_anim]
         start_time=-50
-        [frame]
-            image="units/monsters/croc/crocodile.png:50"
-        [/frame]
+        [if]
+            direction=n,nw,ne
+            [frame]
+                image="units/monsters/croc/crocodile-ne.png:50"
+            [/frame]
+        [/if]
+        [else]
+            [frame]
+                image="units/monsters/croc/crocodile.png:50"
+            [/frame]
+        [/else]
     [/standing_anim]
+    [movement_anim]
+        start_time=0
+        direction=s,sw,se
+        [if]
+            direction=n,nw,ne
+            [frame]
+                image="units/monsters/croc/crocodile-ne.png:50"
+            [/frame]
+        [/if]
+        [else]
+            [frame]
+                image="units/monsters/croc/crocodile.png:50"
+            [/frame]
+        [/else]
+    [/movement_anim]
+    ###########################################
+    # floating in the water
     [standing_anim]
         start_time=-50
         {CROC_TERRAIN_FILTER_TEMP}
-        [frame]
-            image="units/monsters/croc/crocodile-float.png:50"
-        [/frame]
+        [if]
+            direction=n,nw,ne
+            submerge=0.42
+            [frame]
+                image="units/monsters/croc/crocodile-float-ne.png:50"
+            [/frame]
+        [/if]
+        [else]
+            submerge=0.45
+            [frame]
+                image="units/monsters/croc/crocodile-float.png:50"
+            [/frame]
+        [/else]
     [/standing_anim]
     [movement_anim]
         start_time=0
         {CROC_TERRAIN_FILTER_TEMP}
-        [frame]
-            image="units/monsters/croc/crocodile-float.png:50"
-        [/frame]
-    [/movement_anim]
-    [movement_anim]
-        start_time=0
-        [frame]
-            image="units/monsters/croc/crocodile.png:50"
-        [/frame]
+        [if]
+            direction=n,nw,ne
+            submerge=0.42
+            [frame]
+                image="units/monsters/croc/crocodile-float-ne.png:50"
+            [/frame]
+        [/if]
+        [else]
+            submerge=0.45
+            [frame]
+                image="units/monsters/croc/crocodile-float.png:50"
+            [/frame]
+        [/else]
     [/movement_anim]
+    ###########################################
     hitpoints=50
     movement_type=naga
     [resistance]
@@ -76,8 +124,18 @@
         note=_"This unit can move unseen through swamp water, keeping most of its body submerged."
     [/special_note]
     die_sound=drake-die.ogg
-    {DEFENSE_ANIM "units/monsters/croc/crocodile-defend2.png" "units/monsters/croc/crocodile-defend1.png" {SOUND_LIST:DRAKE_HIT}}
+    {DEFENSE_ANIM_FILTERED "units/monsters/croc/crocodile-defend2.png" "units/monsters/croc/crocodile-defend1.png" {SOUND_LIST:DRAKE_HIT} (
+        direction=s,sw,se
+    )}
+    {DEFENSE_ANIM_FILTERED "units/monsters/croc/crocodile-ne-defend2.png" "units/monsters/croc/crocodile-ne-defend1.png" {SOUND_LIST:DRAKE_HIT} (
+        direction=n,nw,ne
+    )}
     {DEFENSE_ANIM_FILTERED "units/monsters/croc/crocodile-float-defend2.png" "units/monsters/croc/crocodile-float-defend1.png" {SOUND_LIST:DRAKE_HIT} (
+        direction=s,sw,se
+        {CROC_TERRAIN_FILTER_TEMP}
+    )}
+    {DEFENSE_ANIM_FILTERED "units/monsters/croc/crocodile-float-ne-defend2.png" "units/monsters/croc/crocodile-float-ne-defend1.png" {SOUND_LIST:DRAKE_HIT} (
+        direction=n,nw,ne
         {CROC_TERRAIN_FILTER_TEMP}
     )}
     [abilities]
@@ -110,26 +168,42 @@ Enemy units cannot see this unit while it is in swamp, except if they have units
             name=bite
         [/filter_attack]
         {CROC_TERRAIN_FILTER_TEMP}
-
         start_time=-450
         offset=0.0:300,0.0~0.6:150,0.6~0.0:400
-        [frame]
-            image=units/monsters/croc/crocodile-float-attack[1~6].png:[100,100,100,100,150,300]
-        [/frame]
+        [if]
+            direction=n,nw,ne
+            [frame] # this eventually needs a NE attack anim, but it doesn't look _that_ egregious as is, unlike the non-floating
+                image=units/monsters/croc/crocodile-float-attack[1~6].png:[100,100,100,100,150,300]
+            [/frame]
+        [/if]
+        [else]
+            [frame]
+                image=units/monsters/croc/crocodile-float-attack[1~6].png:[100,100,100,100,150,300]
+            [/frame]
+        [/else]
         {SOUND:HIT_AND_MISS bite.ogg {SOUND_LIST:MISS} -50}
     [/attack_anim]
     [attack_anim]
         [filter_attack]
             name=bite
         [/filter_attack]
-
         start_time=-500
-        offset=0.0:350,0.0~0.6:150,0.6~0.0:400
-        [frame]
-            image=units/monsters/croc/crocodile-attack[1~7].png:[100*5,150,250]
-        [/frame]
+        [if]
+            direction=n,nw,ne
+            offset=0.0:400,0.0~0.7:100,0.7:150,0.7~0.0:250
+            [frame]
+                image=units/monsters/croc/crocodile-ne-attack[1~6].png:[70,100,120,160,100,350]
+            [/frame]
+        [/if]
+        [else]
+            offset=0.0:350,0.0~0.6:150,0.6~0.0:400
+            [frame]
+                image=units/monsters/croc/crocodile-attack[1~7].png:[100*5,150,250]
+            [/frame]
+        [/else]
         {SOUND:HIT_AND_MISS bite.ogg {SOUND_LIST:MISS} -50}
     [/attack_anim]
 [/unit_type]
 
 #undef CROC_TERRAIN_FILTER_TEMP
+#undef CROC_TERRAIN_TEMP

data/core/units/monsters/Sea_Serpent.cfg

@@ -25,7 +25,7 @@
     [attack]
         name=fangs
         description=_"fangs"
-        icon=attacks/fangs-snake.png
+        icon=attacks/fangs-angler.png
         type=pierce
         range=melee
         damage=18

data/core/units/monsters/Water_Serpent.cfg

@@ -36,7 +36,7 @@
     usage=fighter
     description= _ "Scholars differ as to the ancestry of the Water Serpent. Some hold that they are the immature young, or mature cousins, of Sea Serpents. Others hold them up as a primitive offshoot of the Nagas. What is certain is that it is wise to avoid waters where they are known to congregate."
     die_sound=hiss-die.wav
-    {DEFENSE_ANIM_DIRECTIONAL "units/monsters/water-serpent-attack-se-1.png" "units/monsters/water-serpent-attack-se-2.png" "units/monsters/water-serpent-attack-ne-1.png" "units/monsters/water-serpent-attack-ne-2.png" hiss-hit.wav}
+    {DEFENSE_ANIM_DIRECTIONAL "units/monsters/water-serpent-attack-se-2.png" "units/monsters/water-serpent-attack-se-1.png" "units/monsters/water-serpent-attack-ne-2.png" "units/monsters/water-serpent-attack-ne-1.png" hiss-hit.wav}
     [attack]
         name=fangs
         description=_ "fangs"