Give proper names to some functions

src/battle_main.c

@@ -96,7 +96,7 @@ static void SpriteCb_WildMonShowHealthbox(struct Sprite *sprite);
 static void SpriteCb_WildMonAnimate(struct Sprite *sprite);
 static void sub_80398D0(struct Sprite *sprite);
 static void SpriteCB_AnimFaintOpponent(struct Sprite *sprite);
-static void sub_8039AF4(struct Sprite *sprite);
+static void SpriteCb_BlinkVisible(struct Sprite *sprite);
 static void SpriteCallbackDummy_3(struct Sprite *sprite);
 static void oac_poke_ally_(struct Sprite *sprite);
 static void SpecialStatusesClear(void);
@@ -2798,31 +2798,31 @@ static void SpriteCB_AnimFaintOpponent(struct Sprite *sprite)
     }
 }
 
-void sub_8039AD8(struct Sprite *sprite)
+// Used when selecting a move, which can hit multiple targets, in double battles.
+void SpriteCb_ShowAsMoveTarget(struct Sprite *sprite)
 {
     sprite->data[3] = 8;
     sprite->data[4] = sprite->invisible;
-    sprite->callback = sub_8039AF4;
+    sprite->callback = SpriteCb_BlinkVisible;
 }
 
-static void sub_8039AF4(struct Sprite *sprite)
+static void SpriteCb_BlinkVisible(struct Sprite *sprite)
 {
-    sprite->data[3]--;
-    if (sprite->data[3] == 0)
+    if (--sprite->data[3] == 0)
     {
         sprite->invisible ^= 1;
         sprite->data[3] = 8;
     }
 }
 
-void sub_8039B2C(struct Sprite *sprite)
+void SpriteCb_HideAsMoveTarget(struct Sprite *sprite)
 {
     sprite->invisible = sprite->data[4];
     sprite->data[4] = FALSE;
     sprite->callback = SpriteCallbackDummy_2;
 }
 
-void sub_8039B58(struct Sprite *sprite)
+void SpriteCb_OpponentMonFromBall(struct Sprite *sprite)
 {
     if (sprite->affineAnimEnded)
     {
@@ -2965,7 +2965,7 @@ static void SpriteCB_BounceEffect(struct Sprite *sprite)
 #undef sBouncerSpriteId
 #undef sWhich
 
-void sub_8039E44(struct Sprite *sprite)
+void SpriteCb_PlayerMonFromBall(struct Sprite *sprite)
 {
     if (sprite->affineAnimEnded)
         BattleAnimateBackSprite(sprite, sprite->sSpeciesId);