Documented boolean uses

src/battle_anim_rock.c

@@ -297,7 +297,7 @@ const struct SpriteTemplate gWeatherBallRockDownSpriteTemplate =
 static void AnimFallingRock(struct Sprite *sprite)
 {
     if (gBattleAnimArgs[3] != 0)
-        SetAverageBattlerPositions(gBattleAnimTarget, 0, &sprite->x, &sprite->y);
+        SetAverageBattlerPositions(gBattleAnimTarget, FALSE, &sprite->x, &sprite->y);
 
     sprite->x += gBattleAnimArgs[0];
     sprite->y += 14;
@@ -363,7 +363,7 @@ static void AnimRockFragment(struct Sprite *sprite)
 static void AnimParticleInVortex(struct Sprite *sprite)
 {
     if (gBattleAnimArgs[6] == ANIM_ATTACKER)
-        InitSpritePosToAnimAttacker(sprite, 0);
+        InitSpritePosToAnimAttacker(sprite, FALSE);
     else
         InitSpritePosToAnimTarget(sprite, FALSE);
 
@@ -544,7 +544,7 @@ static void AnimFlyingSandCrescent(struct Sprite *sprite)
 static void AnimRaiseSprite(struct Sprite *sprite)
 {
     StartSpriteAnim(sprite, gBattleAnimArgs[4]);
-    InitSpritePosToAnimAttacker(sprite, 0);
+    InitSpritePosToAnimAttacker(sprite, FALSE);
 
     sprite->data[0] = gBattleAnimArgs[3];
     sprite->data[2] = sprite->x;