4 files changed, 28 insertions, 28 deletions
diff --git a/engine/battle_anims/anim_commands.asm b/engine/battle_anims/anim_commands.asm
index 16c101301..ee13fbd96 100644
--- a/engine/battle_anims/anim_commands.asm
+++ b/engine/battle_anims/anim_commands.asm
@@ -1,6 +1,6 @@
 ; Battle animation command interpreter.
 
-PlayBattleAnim: ; cc0d6
+Predef_PlayBattleAnim: ; cc0d6
 
 	ld a, [rSVBK]
 	push af
@@ -167,7 +167,7 @@ BattleAnimRestoreHuds: ; cc1bb
 	ld [rSVBK], a
 
 	ld hl, UpdateBattleHuds
-	ld a, BANK(UpdatePlayerHUD)
+	ld a, BANK(Predef_UpdatePlayerHUD)
 	rst FarCall ; Why not "call UpdateBattleHuds"?
 
 	pop af
@@ -232,8 +232,7 @@ ClearActorHud: ; cc207
 	ret
 ; cc220
 
-Functioncc220: ; cc220
-; Appears to be unused.
+Unreferenced_Functioncc220: ; cc220
 	xor a
 	ld [hBGMapMode], a
 	ld a, LOW(vBGMap0 tile $28)
@@ -258,15 +257,15 @@ BattleAnim_ClearCGB_OAMFlags: ; cc23d
 	bit 3, a
 	jr z, .delete
 
-	ld hl, Sprites + 3
-	ld c, (SpritesEnd - Sprites) / 4
+	ld hl, Sprite01Attributes
+	ld c, NUM_SPRITE_OAM_STRUCTS
 .loop
 	ld a, [hl]
 	and $f0
 	ld [hli], a
+rept SPRITEOAMSTRUCT_LENGTH +- 1
 	inc hl
-	inc hl
-	inc hl
+endr
 	dec c
 	jr nz, .loop
 	ret
@@ -929,18 +928,18 @@ BattleAnimCmd_Transform: ; cc5dc (33:45dc)
 	ld a, [TempBattleMonSpecies] ; TempBattleMonSpecies
 	ld [CurPartySpecies], a ; CurPartySpecies
 	ld hl, BattleMonDVs ; BattleMonDVs
-	predef GetUnownLetter
+	predef Predef_GetUnownLetter
 	ld de, vTiles0 tile $00
-	predef GetMonFrontpic
+	predef Predef_GetMonFrontpic
 	jr .done
 
 .player
 	ld a, [TempEnemyMonSpecies] ; TempEnemyMonSpecies
 	ld [CurPartySpecies], a ; CurPartySpecies
 	ld hl, EnemyMonDVs ; EnemyMonDVs
-	predef GetUnownLetter
+	predef Predef_GetUnownLetter
 	ld de, vTiles0 tile $00
-	predef GetMonBackpic
+	predef Predef_GetMonBackpic
 
 .done
 	pop af
@@ -1077,7 +1076,7 @@ GetMinimizePic: ; cc6e7 (33:46e7)
 	call CopyMinimizePic
 	ld hl, vTiles2 tile $00
 	ld de, sScratch
-	lb bc, BANK(GetMinimizePic), $31
+	lb bc, BANK(GetMinimizePic), 7 * 7
 	ret
 
 .player
@@ -1085,7 +1084,7 @@ GetMinimizePic: ; cc6e7 (33:46e7)
 	call CopyMinimizePic
 	ld hl, vTiles2 tile $31
 	ld de, sScratch
-	lb bc, BANK(GetMinimizePic), $24
+	lb bc, BANK(GetMinimizePic), 6 * 6
 	ret
 
 CopyMinimizePic: ; cc719 (33:4719)
@@ -1156,16 +1155,16 @@ BattleAnimCmd_BeatUp: ; cc776 (33:4776)
 	jr z, .player
 
 	ld hl, BattleMonDVs
-	predef GetUnownLetter
+	predef Predef_GetUnownLetter
 	ld de, vTiles2 tile $00
-	predef GetMonFrontpic
+	predef Predef_GetMonFrontpic
 	jr .done
 
 .player
 	ld hl, EnemyMonDVs
-	predef GetUnownLetter
+	predef Predef_GetUnownLetter
 	ld de, vTiles2 tile $31
-	predef GetMonBackpic
+	predef Predef_GetMonBackpic
 
 .done
 	pop af
@@ -1207,7 +1206,7 @@ BattleAnimCmd_Sound: ; cc7cd (33:47cd)
 	srl a
 	ld [wSFXDuration], a
 	call .GetCryTrack
-	and 3
+	maskbits NUM_NOISE_CHANS +- 1
 	ld [CryTracks], a ; CryTracks
 
 	ld e, a
@@ -1244,7 +1243,7 @@ BattleAnimCmd_Sound: ; cc7cd (33:47cd)
 
 BattleAnimCmd_Cry: ; cc807 (33:4807)
 	call GetBattleAnimByte
-	and 3
+	maskbits NUM_NOISE_CHANS +- 1
 	ld e, a
 	ld d, 0
 	ld hl, .CryData
diff --git a/engine/battle_anims/bg_effects.asm b/engine/battle_anims/bg_effects.asm
index 3dd6e7785..a7c2012e5 100644
--- a/engine/battle_anims/bg_effects.asm
+++ b/engine/battle_anims/bg_effects.asm
@@ -506,13 +506,13 @@ BattleBGEffect_HeadFollow: ; c8281 (32:4281)
 	push bc
 	call BGEffect_CheckBattleTurn
 	jr nz, .player_turn
-	ld a, ANIM_OBJ_BA
+	ld a, ANIM_OBJ_PLAYERHEADFOLLOW
 	ld [wBattleAnimTemp0], a
 	ld a, 16 * 8 + 4
 	jr .okay
 
 .player_turn
-	ld a, ANIM_OBJ_BB
+	ld a, ANIM_OBJ_ENEMYHEADFOLLOW
 	ld [wBattleAnimTemp0], a
 	ld a, 6 * 8
 .okay
diff --git a/engine/battle_anims/engine.asm b/engine/battle_anims/core.asm
index 55adeae8c..55adeae8c 100755
--- a/engine/battle_anims/engine.asm
+++ b/engine/battle_anims/core.asm
diff --git a/engine/battle_anims/functions.asm b/engine/battle_anims/functions.asm
index 1a66ed51d..5e85ffdb0 100755
--- a/engine/battle_anims/functions.asm
+++ b/engine/battle_anims/functions.asm
@@ -4083,18 +4083,19 @@ BattleAnim_IncAnonJumptableIndex: ; ce72c (33:672c)
 	ret
 
 BattleAnim_Cosine: ; ce732 (33:6732)
-	add $10
+; a = d * cos(a * pi/32)
+	add %010000
 BattleAnim_Sine: ; ce734 (33:6734)
-; a = d sin a
-	and $3f
-	cp $20
+; a = d * sin(a * pi/32)
+	and %111111
+	cp %100000
 	jr nc, .negative
 	call .ApplySineWave
 	ld a, h
 	ret
 
 .negative
-	and $1f
+	and %011111
 	call .ApplySineWave
 	ld a, h
 	xor $ff
@@ -4111,7 +4112,7 @@ BattleAnim_Sine: ; ce734 (33:6734)
 	ld e, [hl]
 	inc hl
 	ld d, [hl]
-	ld hl, $0
+	ld hl, 0
 .multiply
 	srl a
 	jr nc, .even