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; The third of three duplicated sound engines.
Audio3_PlaySound:: ; 7d10d (1f:510d)
ld [wSoundID], a
ld a, [wSoundID]
cp $ff
jp z, Audio3_7d18e
cp $c2
jp z, Audio3_7d12d
jp c, Audio3_7d12d
cp $fd
jr z, .asm_7d127
jp nc, Audio3_7d12d
.asm_7d127
call InitMusicVariables
jp Audio3_7d192
Audio3_7d12d: ; 7d12d (1f:512d)
ld l, a
ld e, a
ld h, $0
ld d, h
add hl, hl
add hl, de
ld de, SFX_Headers_3
add hl, de
ld a, h
ld [wSfxHeaderPointer], a
ld a, l
ld [wSfxHeaderPointer + 1], a
ld a, [hl]
and $c0
rlca
rlca
ld c, a
.asm_7d146
ld d, c
ld a, c
add a
add c
ld c, a
ld b, $0
ld a, [wSfxHeaderPointer]
ld h, a
ld a, [wSfxHeaderPointer + 1]
ld l, a
add hl, bc
ld c, d
ld a, [hl]
and $f
ld e, a
ld d, $0
ld hl, wChannelSoundIDs
add hl, de
ld a, [hl]
and a
jr z, .asm_7d182
ld a, e
cp $7
jr nz, .asm_7d179
ld a, [wSoundID]
cp $14
jr nc, .asm_7d172
ret
.asm_7d172
ld a, [hl]
cp $14
jr z, .asm_7d182
jr c, .asm_7d182
.asm_7d179
ld a, [wSoundID]
cp [hl]
jr z, .asm_7d182
jr c, .asm_7d182
ret
.asm_7d182
call InitSFXVariables
ld a, c
and a
jp z, Audio3_7d192
dec c
jp .asm_7d146
Audio3_7d18e: ; 7d18e (1f:518e)
call StopAllAudio
ret
Audio3_7d192: ; 7d192 (1f:5192)
ld a, [wSoundID]
ld l, a
ld e, a
ld h, $0
ld d, h
add hl, hl
add hl, de
ld de, SFX_Headers_3
add hl, de
ld e, l
ld d, h
ld hl, wChannelCommandPointers
ld a, [de] ; get channel number
ld b, a
rlca
rlca
and $3
ld c, a
ld a, b
and $f
ld b, c
inc b
inc de
ld c, $0
.asm_7d1b4
cp c
jr z, .asm_7d1bc
inc c
inc hl
inc hl
jr .asm_7d1b4
.asm_7d1bc
push af
push hl
push bc
ld b, $0
ld c, a
cp $3
jr c, .asm_7d1cc
ld hl, wChannelFlags1
add hl, bc
set 2, [hl]
.asm_7d1cc
pop bc
pop hl
ld a, [de] ; get channel pointer
ld [hli], a
inc de
ld a, [de]
ld [hli], a
inc de
pop af
push hl
push bc
ld b, $0
ld c, a
ld hl, wChannelSoundIDs
add hl, bc
ld a, [wSoundID]
ld [hl], a
pop bc
pop hl
inc c
dec b
ld a, b
and a
ld a, [de]
inc de
jr nz, .asm_7d1b4
ld a, [wSoundID]
cp $14
jr nc, .asm_7d1f5
jr .asm_7d21f
.asm_7d1f5
ld a, [wSoundID]
cp $86
jr z, .asm_7d21f
jr c, .asm_7d200
jr .asm_7d21f
.asm_7d200
ld hl, wChannelSoundIDs + CH4
ld [hli], a
ld [hli], a
ld [hli], a
ld [hl], a
ld hl, wChannelCommandPointers + CH6 * 2 ; sfx noise channel pointer
ld de, Noise3_endchannel
ld [hl], e
inc hl
ld [hl], d ; overwrite pointer to point to endchannel
ld a, [wSavedVolume]
and a
jr nz, .asm_7d21f
ld a, [rNR50]
ld [wSavedVolume], a
ld a, $77
ld [rNR50], a
.asm_7d21f
ret
Noise3_endchannel: ; 7d220 (1f:5220)
endchannel
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