diff options
Diffstat (limited to 'home/audio.asm')
| -rw-r--r-- | home/audio.asm | 200 |
1 files changed, 138 insertions, 62 deletions
diff --git a/home/audio.asm b/home/audio.asm index 7c0c5238..8157e758 100644 --- a/home/audio.asm +++ b/home/audio.asm @@ -17,13 +17,14 @@ PlayDefaultMusicFadeOutCurrent:: ld [wLastMusicSoundID], a ld c, 8 ld d, c - PlayDefaultMusicCommon:: ld a, [wWalkBikeSurfState] and a jr z, .walking cp $2 jr z, .surfing + call CheckForNoBikingMusicMap + jr c, .walking ld a, MUSIC_BIKE_RIDING jr .next @@ -34,7 +35,7 @@ PlayDefaultMusicCommon:: ld b, a ld a, d and a ; should current music be faded out first? - ld a, BANK(Music_BikeRiding) + ld a, $1f ; BANK(Music_BikeRiding) jr nz, .next2 ; Only change the audio ROM bank if the current music isn't going to be faded @@ -66,35 +67,32 @@ PlayDefaultMusicCommon:: ld [wNewSoundID], a jp PlaySound -UpdateMusic6Times:: -; This is called when entering a map, before fading out the current music and -; playing the default music (i.e. the map's music or biking/surfing music). - ld a, [wAudioROMBank] - ld b, a - cp BANK(Audio1_UpdateMusic) - jr nz, .checkForAudio2 - -; audio 1 - ld hl, Audio1_UpdateMusic - jr .next - -.checkForAudio2 - cp BANK(Audio2_UpdateMusic) - jr nz, .audio3 - -; audio 2 - ld hl, Audio2_UpdateMusic - jr .next - -.audio3 - ld hl, Audio3_UpdateMusic +CheckForNoBikingMusicMap:: +; probably used to not change music upon getting on bike + ld a, [wCurMap] + cp ROUTE_23 + jr z, .found + cp VICTORY_ROAD_1 + jr z, .found + cp VICTORY_ROAD_2 + jr z, .found + cp VICTORY_ROAD_3 + jr z, .found + cp INDIGO_PLATEAU + jr z, .found + and a + ret +.found + scf + ret -.next - ld c, 6 +UpdateMusic6Times:: + ld c, $6 +UpdateMusicCTimes:: .loop push bc push hl - call Bankswitch + callba Audio1_UpdateMusic ; 2:509d pop hl pop bc dec c @@ -137,7 +135,20 @@ PlayMusic:: ld [wAudioROMBank], a ld [wAudioSavedROMBank], a ld a, b + jr PlaySound + +Func_2223:: + xor a + ld [wChannelSoundIDs + CH4], a + ld [wChannelSoundIDs + CH5], a + ld [wChannelSoundIDs + CH6], a + ld [wChannelSoundIDs + CH7], a + ld [rNR10], a + ret +StopAllMusic:: + ld a, $FF + ld [wNewSoundID], a ; plays music specified by a. If value is $ff, music is stopped PlaySound:: push hl @@ -154,65 +165,130 @@ PlaySound:: ld [wChannelSoundIDs + CH7], a .next ld a, [wAudioFadeOutControl] - and a ; has a fade-out length been specified? + and a jr z, .noFadeOut ld a, [wNewSoundID] - and a ; is the new sound ID 0? - jr z, .done ; if so, do nothing + and a + jr z, .done xor a ld [wNewSoundID], a ld a, [wLastMusicSoundID] - cp $ff ; has the music been stopped? - jr nz, .fadeOut ; if not, fade out the current music -; If it has been stopped, start playing the new music immediately. + cp $ff + jr nz, .fadeOut xor a ld [wAudioFadeOutControl], a .noFadeOut xor a ld [wNewSoundID], a + call DetermineAudioFunction + jr .done + +.fadeOut + ld a, b + ld [wLastMusicSoundID], a + ld a, [wAudioFadeOutControl] + ld [wAudioFadeOutCounterReloadValue], a + ld [wAudioFadeOutCounter], a + ld a, b + ld [wAudioFadeOutControl], a +.done + pop bc + pop de + pop hl + ret + +GetNextMusicByte:: ld a, [H_LOADEDROMBANK] - ld [hSavedROMBank], a + push af ld a, [wAudioROMBank] - ld [H_LOADEDROMBANK], a - ld [MBC1RomBank], a - cp BANK(Audio1_PlaySound) - jr nz, .checkForAudio2 + call BankswitchCommon + ld d, $0 + ld a, c + add a + ld e, a + ld hl, wChannelCommandPointers + add hl, de + ld a, [hli] + ld e, a + ld a, [hld] + ld d, a + ld a, [de] + inc de + ld [hl], e + inc hl + ld [hl], d + ld e, a + pop af + call BankswitchCommon + ld a, e + ret + +InitMusicVariables:: + push hl + push de + push bc + homecall Audio2_InitMusicVariables ; 8:59f8 + pop bc + pop de + pop hl + ret + +InitSFXVariables:: + push hl + push de + push bc + homecall Audio2_InitSFXVariables ; 8:5ab7 + pop bc + pop de + pop hl + ret -; audio 1 +StopAllAudio:: + push hl + push de + push bc + homecall Audio2_StopAllAudio + pop bc + pop de + pop hl + ret + +DetermineAudioFunction:: + ld a, [H_LOADEDROMBANK] + push af + ld a, [wAudioROMBank] + call BankswitchCommon +; determine the audio function, based on the bank + cp BANK(Audio1_PlaySound) + jr nz, .checkForBank08 +; bank 02 (audio 1) ld a, b call Audio1_PlaySound - jr .next2 + jr .done -.checkForAudio2 +.checkForBank08 cp BANK(Audio2_PlaySound) - jr nz, .audio3 - -; audio 2 + jr nz, .checkForBank1F +; bank 08 (audio 2) ld a, b call Audio2_PlaySound - jr .next2 + jr .done -.audio3 +.checkForBank1F + cp BANK(Audio3_PlaySound) + jr nz, .bank20 +; bank 1f (audio 3) ld a, b call Audio3_PlaySound - -.next2 - ld a, [hSavedROMBank] - ld [H_LOADEDROMBANK], a - ld [MBC1RomBank], a jr .done -.fadeOut +.bank20 +; invalid banks will default to XX:6bd4 +; this is seen when encountering Missingno, as its sprite dimensions overflow to wAudioROMBank ld a, b - ld [wLastMusicSoundID], a - ld a, [wAudioFadeOutControl] - ld [wAudioFadeOutCounterReloadValue], a - ld [wAudioFadeOutCounter], a - ld a, b - ld [wAudioFadeOutControl], a - + call Audio4_PlaySound .done - pop bc - pop de - pop hl + pop af + call BankswitchCommon ret + |