(*
* Hedgewars, a free turn based strategy game
* Copyright (c) 2004-2014 Andrey Korotaev <unC0Rr@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*)
{$INCLUDE "options.inc"}
unit uSound;
(*
* This unit controls the sounds and music of the game.
* Doesn't really do anything if isSoundEnabled = false and isMusicEnabled = false
*
* There are three basic types of sound controls:
* Music - The background music of the game:
* * will only be played if isMusicEnabled = true
* * can be started, changed, paused and resumed
* Sound - Can be started and stopped
* Looped Sound - Subtype of sound: plays in a loop using a
* "channel", of which the id is returned on start.
* The channel id can be used to stop a specific sound loop.
*)
interface
uses SDLh, uConsts, uTypes, SysUtils;
procedure preInitModule;
procedure initModule;
procedure freeModule;
procedure InitSound; // Initiates sound-system if isSoundEnabled.
procedure ReleaseSound(complete: boolean); // Releases sound-system and used resources.
procedure ResetSound; // Reset sound state to the previous state.
procedure SetSound(enabled: boolean); // Enable/disable sound-system and backup status.
// MUSIC
// Obvious music commands for music track
procedure SetMusic(enabled: boolean); // Enable/disable music.
procedure SetMusicName(musicname: shortstring); // Set name of the file to play.
procedure PlayMusic; // Play music from the start.
procedure PauseMusic; // Pause music.
procedure ResumeMusic; // Resume music from pause point.
procedure ChangeMusic(musicname: shortstring); // Replaces music track with musicname and plays it.
procedure StopMusic; // Stops and releases the current track.
// SOUNDS
// Plays the sound snd [from a given voicepack],
// if keepPlaying is given and true,
// then the sound's playback won't be interrupted if asked to play again.
procedure PlaySound(snd: TSound);
procedure PlaySound(snd: TSound; keepPlaying: boolean);
procedure PlaySoundV(snd: TSound; voicepack: PVoicepack);
procedure PlaySoundV(snd: TSound; voicepack: PVoicepack; keepPlaying: boolean);
// Plays sound snd [of voicepack] in a loop, but starts with fadems milliseconds of fade-in.
// Returns sound channel of the looped sound.
function LoopSound(snd: TSound): LongInt;
function LoopSound(snd: TSound; fadems: LongInt): LongInt;
function LoopSoundV(snd: TSound; voicepack: PVoicepack): LongInt; // WTF?
function LoopSoundV(snd: TSound; voicepack: PVoicepack; fadems: LongInt): LongInt;
// Stops the normal/looped sound of the given type/in the given channel
// [with a fade-out effect for fadems milliseconds].
procedure StopSound(snd: TSound);
procedure StopSoundChan(chn: LongInt);
procedure StopSoundChan(chn, fadems: LongInt);
procedure AddVoice(snd: TSound; voicepack: PVoicepack);
procedure PlayNextVoice;
// GLOBAL FUNCTIONS
// Drastically lower the volume when we lose focus (and restore the previous value).
procedure DampenAudio;
procedure UndampenAudio;
// Mute/Unmute audio
procedure MuteAudio;
// MISC
// Set the initial volume
procedure SetVolume(vol: LongInt);
// Modifies the sound volume of the game by voldelta and returns the new volume level.
function ChangeVolume(voldelta: LongInt): LongInt;
// Returns a pointer to the voicepack with the given name.
function AskForVoicepack(name: shortstring): Pointer;
var Volume: LongInt;
SoundTimerTicks: Longword;
implementation
uses uVariables, uConsole, uCommands, uDebug, uPhysFSLayer;
const chanTPU = 32;
var cInitVolume: LongInt;
previousVolume: LongInt; // cached volume value
lastChan: array [TSound] of LongInt;
voicepacks: array[0..cMaxTeams] of TVoicepack;
defVoicepack: PVoicepack;
Mus: PMixMusic; // music pointer
MusicFN: shortstring; // music file name
isMusicEnabled: boolean;
isSoundEnabled: boolean;
isSEBackup: boolean;
VoiceList : array[0..7] of TVoice = (
( snd: sndNone; voicepack: nil),
( snd: sndNone; voicepack: nil),
( snd: sndNone; voicepack: nil),
( snd: sndNone; voicepack: nil),
( snd: sndNone; voicepack: nil),
( snd: sndNone; voicepack: nil),
( snd: sndNone; voicepack: nil),
( snd: sndNone; voicepack: nil));
Soundz: array[TSound] of record
FileName: string[31];
Path : TPathType;
end = (
(FileName: ''; Path: ptNone ),// sndNone
(FileName: 'grenadeimpact.ogg'; Path: ptSounds),// sndGrenadeImpact
(FileName: 'explosion.ogg'; Path: ptSounds),// sndExplosion
(FileName: 'throwpowerup.ogg'; Path: ptSounds),// sndThrowPowerUp
(FileName: 'throwrelease.ogg'; Path: ptSounds),// sndThrowRelease
(FileName: 'splash.ogg'; Path: ptSounds),// sndSplash
(FileName: 'shotgunreload.ogg'; Path: ptSounds),// sndShotgunReload
(FileName: 'shotgunfire.ogg'; Path: ptSounds),// sndShotgunFire
(FileName: 'graveimpact.ogg'; Path: ptSounds),// sndGraveImpact
(FileName: 'mineimpact.ogg'; Path: ptSounds),// sndMineImpact
(FileName: 'minetick.ogg'; Path: ptSounds),// sndMineTicks
(FileName: 'Droplet1.ogg'; Path: ptSounds),// sndMudballImpact
(FileName: 'pickhammer.ogg'; Path: ptSounds),// sndPickhammer
(FileName: 'gun.ogg'; Path: ptSounds),// sndGun
(FileName: 'bee.ogg'; Path: ptSounds),// sndBee
(FileName: 'Jump1.ogg'; Path: ptVoices),// sndJump1
(FileName: 'Jump2.ogg'; Path: ptVoices),// sndJump2
(FileName: 'Jump3.ogg'; Path: ptVoices),// sndJump3
(FileName: 'Yessir.ogg'; Path: ptVoices),// sndYesSir
(FileName: 'Laugh.ogg'; Path: ptVoices),// sndLaugh
(FileName: 'Illgetyou.ogg'; Path: ptVoices),// sndIllGetYou
(FileName: 'Justyouwait.ogg'; Path: ptVoices),// sndJustyouwait
(FileName: 'Incoming.ogg'; Path: ptVoices),// sndIncoming
(FileName: 'Missed.ogg'; Path: ptVoices),// sndMissed
(FileName: 'Stupid.ogg'; Path: ptVoices),// sndStupid
(FileName: 'Firstblood.ogg'; Path: ptVoices),// sndFirstBlood
(FileName: 'Boring.ogg'; Path: ptVoices),// sndBoring
(FileName: 'Byebye.ogg'; Path: ptVoices),// sndByeBye
(FileName: 'Sameteam.ogg'; Path: ptVoices),// sndSameTeam
(FileName: 'Nutter.ogg'; Path: ptVoices),// sndNutter
(FileName: 'Reinforcements.ogg'; Path: ptVoices),// sndReinforce
(FileName: 'Traitor.ogg'; Path: ptVoices),// sndTraitor
(FileName: 'Youllregretthat.ogg'; Path: ptVoices),// sndRegret
(FileName: 'Enemydown.ogg'; Path: ptVoices),// sndEnemyDown
(FileName: 'Coward.ogg'; Path: ptVoices),// sndCoward
(FileName: 'Hurry.ogg'; Path: ptVoices),// sndHurry
(FileName: 'Watchit.ogg'; Path: ptVoices),// sndWatchIt
(FileName: 'Kamikaze.ogg'; Path: ptVoices),// sndKamikaze
(FileName: 'cake2.ogg'; Path: ptSounds),// sndCake
(FileName: 'Ow1.ogg'; Path: ptVoices),// sndOw1
(FileName: 'Ow2.ogg'; Path: ptVoices),// sndOw2
(FileName: 'Ow3.ogg'; Path: ptVoices),// sndOw3
(FileName: 'Ow4.ogg'; Path: ptVoices),// sndOw4
(FileName: 'Firepunch1.ogg'; Path: ptVoices),// sndFirepunch1
(FileName: 'Firepunch2.ogg'; Path: ptVoices),// sndFirepunch2
(FileName: 'Firepunch3.ogg'; Path: ptVoices),// sndFirepunch3
(FileName: 'Firepunch4.ogg'; Path: ptVoices),// sndFirepunch4
(FileName: 'Firepunch5.ogg'; Path: ptVoices),// sndFirepunch5
(FileName: 'Firepunch6.ogg'; Path: ptVoices),// sndFirepunch6
(FileName: 'Melon.ogg'; Path: ptVoices),// sndMelon
(FileName: 'Hellish.ogg'; Path: ptSounds),// sndHellish
(FileName: 'Yoohoo.ogg'; Path: ptSounds),// sndYoohoo
(FileName: 'rcplane.ogg'; Path: ptSounds),// sndRCPlane
(FileName: 'whipcrack.ogg'; Path: ptSounds),// sndWhipCrack
(FileName:'ride_of_the_valkyries.ogg'; Path: ptSounds),// sndRideOfTheValkyries
(FileName: 'denied.ogg'; Path: ptSounds),// sndDenied
(FileName: 'placed.ogg'; Path: ptSounds),// sndPlaced
(FileName: 'baseballbat.ogg'; Path: ptSounds),// sndBaseballBat
(FileName: 'steam.ogg'; Path: ptSounds),// sndVaporize
(FileName: 'warp.ogg'; Path: ptSounds),// sndWarp
(FileName: 'suddendeath.ogg'; Path: ptSounds),// sndSuddenDeath
(FileName: 'mortar.ogg'; Path: ptSounds),// sndMortar
(FileName: 'shutterclick.ogg'; Path: ptSounds),// sndShutter
(FileName: 'homerun.ogg'; Path: ptSounds),// sndHomerun
(FileName: 'molotov.ogg'; Path: ptSounds),// sndMolotov
(FileName: 'Takecover.ogg'; Path: ptVoices),// sndCover
(FileName: 'Uh-oh.ogg'; Path: ptVoices),// sndUhOh
(FileName: 'Oops.ogg'; Path: ptVoices),// sndOops
(FileName: 'Nooo.ogg'; Path: ptVoices),// sndNooo
(FileName: 'Hello.ogg'; Path: ptVoices),// sndHello
(FileName: 'ropeshot.ogg'; Path: ptSounds),// sndRopeShot
(FileName: 'ropeattach.ogg'; Path: ptSounds),// sndRopeAttach
(FileName: 'roperelease.ogg'; Path: ptSounds),// sndRopeRelease
(FileName: 'switchhog.ogg'; Path: ptSounds),// sndSwitchHog
(FileName: 'Victory.ogg'; Path: ptVoices),// sndVictory
(FileName: 'Flawless.ogg'; Path: ptVoices),// sndFlawless
(FileName: 'sniperreload.ogg'; Path: ptSounds),// sndSniperReload
(FileName: 'steps.ogg'; Path: ptSounds),// sndSteps
(FileName: 'lowgravity.ogg'; Path: ptSounds),// sndLowGravity
(FileName: 'hell_growl.ogg'; Path: ptSounds),// sndHellishImpact1
(FileName: 'hell_ooff.ogg'; Path: ptSounds),// sndHellishImpact2
(FileName: 'hell_ow.ogg'; Path: ptSounds),// sndHellishImpact3
(FileName: 'hell_ugh.ogg'; Path: ptSounds),// sndHellishImpact4
(FileName: 'melonimpact.ogg'; Path: ptSounds),// sndMelonImpact
(FileName: 'Droplet1.ogg'; Path: ptSounds),// sndDroplet1
(FileName: 'Droplet2.ogg'; Path: ptSounds),// sndDroplet2
(FileName: 'Droplet3.ogg'; Path: ptSounds),// sndDroplet3
(FileName: 'egg.ogg'; Path: ptSounds),// sndEggBreak
(FileName: 'drillgun.ogg'; Path: ptSounds),// sndDrillRocket
(FileName: 'PoisonCough.ogg'; Path: ptVoices),// sndPoisonCough
(FileName: 'PoisonMoan.ogg'; Path: ptVoices),// sndPoisonMoan
(FileName: 'BirdyLay.ogg'; Path: ptSounds),// sndBirdyLay
(FileName: 'Whistle.ogg'; Path: ptSounds),// sndWhistle
(FileName: 'beewater.ogg'; Path: ptSounds),// sndBeeWater
(FileName: '1C.ogg'; Path: ptSounds),// sndPiano0
(FileName: '2D.ogg'; Path: ptSounds),// sndPiano1
(FileName: '3E.ogg'; Path: ptSounds),// sndPiano2
(FileName: '4F.ogg'; Path: ptSounds),// sndPiano3
(FileName: '5G.ogg'; Path: ptSounds),// sndPiano4
(FileName: '6A.ogg'; Path: ptSounds),// sndPiano5
(FileName: '7B.ogg'; Path: ptSounds),// sndPiano6
(FileName: '8C.ogg'; Path: ptSounds),// sndPiano7
(FileName: '9D.ogg'; Path: ptSounds),// sndPiano8
(FileName: 'skip.ogg'; Path: ptSounds),// sndSkip
(FileName: 'sinegun.ogg'; Path: ptSounds),// sndSineGun
(FileName: 'Ooff1.ogg'; Path: ptVoices),// sndOoff1
(FileName: 'Ooff2.ogg'; Path: ptVoices),// sndOoff2
(FileName: 'Ooff3.ogg'; Path: ptVoices),// sndOoff3
(FileName: 'hammer.ogg'; Path: ptSounds),// sndWhack
(FileName: 'Comeonthen.ogg'; Path: ptVoices),// sndComeonthen
(FileName: 'parachute.ogg'; Path: ptSounds),// sndParachute
(FileName: 'bump.ogg'; Path: ptSounds),// sndBump
(FileName: 'hogchant3.ogg'; Path: ptSounds),// sndResurrector
(FileName: 'plane.ogg'; Path: ptSounds),// sndPlane
(FileName: 'TARDIS.ogg'; Path: ptSounds),// sndTardis
(FileName: 'frozen_hog_impact.ogg'; Path: ptSounds),// sndFrozenHogImpact
(FileName: 'ice_beam.ogg'; Path: ptSounds),// sndIceBeam
(FileName: 'hog_freeze.ogg'; Path: ptSounds) // sndHogFreeze
);
function AskForVoicepack(name: shortstring): Pointer;
var i: Longword;
locName, path: shortstring;
begin
i:= 0;
// First, attempt to locate a localised version of the voice
if cLocale <> 'en' then
begin
locName:= name+'_'+cLocale;
path:= cPathz[ptVoices] + '/' + locName;
if pfsExists(path) then
name:= locName
else
if Length(cLocale) > 3 then
begin
locName:= name+'_'+Copy(cLocale,1,2);
path:= cPathz[ptVoices] + '/' + locName;
if pfsExists(path) then
name:= locName
end
end;
// If that fails, use the unmodified one
while (voicepacks[i].name <> name) and (voicepacks[i].name <> '') do
begin
inc(i);
TryDo(i <= cMaxTeams, 'Engine bug: AskForVoicepack i > cMaxTeams', true)
end;
voicepacks[i].name:= name;
AskForVoicepack:= @voicepacks[i]
end;
procedure InitSound;
const channels: LongInt = {$IFDEF MOBILE}1{$ELSE}2{$ENDIF};
var success: boolean;
begin
if not (isSoundEnabled or isMusicEnabled) then
exit;
WriteToConsole('Init sound...');
success:= SDL_InitSubSystem(SDL_INIT_AUDIO) >= 0;
if success then
success:= Mix_OpenAudio(44100, $8010, channels, 1024) = 0;
if success then
WriteLnToConsole(msgOK)
else
begin
WriteLnToConsole(msgFailed);
isSoundEnabled:= false;
isMusicEnabled:= false;
end;
WriteToConsole('Init SDL_mixer... ');
SDLTry(Mix_Init(MIX_INIT_OGG) <> 0, true);
WriteLnToConsole(msgOK);
Mix_AllocateChannels(Succ(chanTPU));
ChangeVolume(cInitVolume);
end;
procedure ResetSound;
begin
isSoundEnabled:= isSEBackup;
end;
procedure SetSound(enabled: boolean);
begin
isSEBackup:= isSoundEnabled;
isSoundEnabled:= enabled;
end;
// when complete is false, this procedure just releases some of the chucks on inactive channels
// in this way music is not stopped, nor are chucks currently being played
procedure ReleaseSound(complete: boolean);
var i: TSound;
t: Longword;
begin
// release and nil all sounds
for t:= 0 to cMaxTeams do
if voicepacks[t].name <> '' then
for i:= Low(TSound) to High(TSound) do
if voicepacks[t].chunks[i] <> nil then
if complete or (Mix_Playing(lastChan[i]) = 0) then
begin
Mix_HaltChannel(lastChan[i]);
lastChan[i]:= -1;
Mix_FreeChunk(voicepacks[t].chunks[i]);
voicepacks[t].chunks[i]:= nil;
end;
// stop music
if complete then
begin
if Mus <> nil then
begin
Mix_HaltMusic();
Mix_FreeMusic(Mus);
Mus:= nil;
end;
// make sure all instances of sdl_mixer are unloaded before continuing
while Mix_Init(0) <> 0 do
Mix_Quit();
Mix_CloseAudio();
end;
end;
procedure PlaySound(snd: TSound);
begin
PlaySoundV(snd, nil, false);
end;
procedure PlaySound(snd: TSound; keepPlaying: boolean);
begin
PlaySoundV(snd, nil, keepPlaying);
end;
procedure PlaySoundV(snd: TSound; voicepack: PVoicepack);
begin
PlaySoundV(snd, voicepack, false);
end;
procedure PlaySoundV(snd: TSound; voicepack: PVoicepack; keepPlaying: boolean);
var s:shortstring;
begin
if (not isSoundEnabled) or fastUntilLag then
exit;
if keepPlaying and (lastChan[snd] <> -1) and (Mix_Playing(lastChan[snd]) <> 0) then
exit;
if (voicepack <> nil) then
begin
if (voicepack^.chunks[snd] = nil) and (Soundz[snd].Path = ptVoices) and (Soundz[snd].FileName <> '') then
begin
s:= cPathz[Soundz[snd].Path] + '/' + voicepack^.name + '/' + Soundz[snd].FileName;
if (not pfsExists(s)) and (snd in [sndFirePunch2, sndFirePunch3, sndFirePunch4, sndFirePunch5, sndFirePunch6]) then
s:= cPathz[Soundz[sndFirePunch1].Path] + '/' + voicepack^.name + '/' + Soundz[snd].FileName;
WriteToConsole(msgLoading + s + ' ');
voicepack^.chunks[snd]:= Mix_LoadWAV_RW(rwopsOpenRead(s), 1);
if voicepack^.chunks[snd] = nil then
WriteLnToConsole(msgFailed)
else
WriteLnToConsole(msgOK)
end;
lastChan[snd]:= Mix_PlayChannelTimed(-1, voicepack^.chunks[snd], 0, -1)
end
else
begin
if (defVoicepack^.chunks[snd] = nil) and (Soundz[snd].Path <> ptVoices) and (Soundz[snd].FileName <> '') then
begin
s:= cPathz[Soundz[snd].Path] + '/' + Soundz[snd].FileName;
WriteToConsole(msgLoading + s + ' ');
defVoicepack^.chunks[snd]:= Mix_LoadWAV_RW(rwopsOpenRead(s), 1);
SDLTry(defVoicepack^.chunks[snd] <> nil, true);
WriteLnToConsole(msgOK);
end;
lastChan[snd]:= Mix_PlayChannelTimed(-1, defVoicepack^.chunks[snd], 0, -1)
end;
end;
procedure AddVoice(snd: TSound; voicepack: PVoicepack);
var i : LongInt;
begin
if (not isSoundEnabled) or fastUntilLag or ((LastVoice.snd = snd) and (LastVoice.voicepack = voicepack)) then
exit;
if (snd = sndVictory) or (snd = sndFlawless) then
begin
Mix_FadeOutChannel(-1, 800);
for i:= 0 to High(VoiceList) do
VoiceList[i].snd:= sndNone;
LastVoice.snd:= sndNone;
end;
i:= 0;
while (i<8) and (VoiceList[i].snd <> sndNone) do
inc(i);
// skip playing same sound for same hog twice
if (i>0) and (VoiceList[i-1].snd = snd) and (VoiceList[i-1].voicepack = voicepack) then
exit;
VoiceList[i].snd:= snd;
VoiceList[i].voicepack:= voicepack;
end;
procedure PlayNextVoice;
var i : LongInt;
begin
if (not isSoundEnabled) or fastUntilLag or ((LastVoice.snd <> sndNone) and (lastChan[LastVoice.snd] <> -1) and (Mix_Playing(lastChan[LastVoice.snd]) <> 0)) then
exit;
i:= 0;
while (i<High(VoiceList)) and (VoiceList[i].snd = sndNone) do
inc(i);
if (VoiceList[i].snd <> sndNone) then
begin
LastVoice.snd:= VoiceList[i].snd;
LastVoice.voicepack:= VoiceList[i].voicepack;
VoiceList[i].snd:= sndNone;
PlaySoundV(LastVoice.snd, LastVoice.voicepack)
end
else LastVoice.snd:= sndNone;
end;
function LoopSound(snd: TSound): LongInt;
begin
LoopSound:= LoopSoundV(snd, nil)
end;
function LoopSound(snd: TSound; fadems: LongInt): LongInt;
begin
LoopSound:= LoopSoundV(snd, nil, fadems)
end;
function LoopSoundV(snd: TSound; voicepack: PVoicepack): LongInt;
begin
voicepack:= voicepack; // avoid compiler hint
LoopSoundV:= LoopSoundV(snd, nil, 0)
end;
function LoopSoundV(snd: TSound; voicepack: PVoicepack; fadems: LongInt): LongInt;
var s: shortstring;
begin
if (not isSoundEnabled) or fastUntilLag then
begin
LoopSoundV:= -1;
exit
end;
if (voicepack <> nil) then
begin
if (voicepack^.chunks[snd] = nil) and (Soundz[snd].Path = ptVoices) and (Soundz[snd].FileName <> '') then
begin
s:= cPathz[Soundz[snd].Path] + '/' + voicepack^.name + '/' + Soundz[snd].FileName;
WriteToConsole(msgLoading + s + ' ');
voicepack^.chunks[snd]:= Mix_LoadWAV_RW(rwopsOpenRead(s), 1);
if voicepack^.chunks[snd] = nil then
WriteLnToConsole(msgFailed)
else
WriteLnToConsole(msgOK)
end;
LoopSoundV:= Mix_PlayChannelTimed(-1, voicepack^.chunks[snd], -1, -1)
end
else
begin
if (defVoicepack^.chunks[snd] = nil) and (Soundz[snd].Path <> ptVoices) and (Soundz[snd].FileName <> '') then
begin
s:= cPathz[Soundz[snd].Path] + '/' + Soundz[snd].FileName;
WriteToConsole(msgLoading + s + ' ');
defVoicepack^.chunks[snd]:= Mix_LoadWAV_RW(rwopsOpenRead(s), 1);
SDLTry(defVoicepack^.chunks[snd] <> nil, true);
WriteLnToConsole(msgOK);
end;
if fadems > 0 then
LoopSoundV:= Mix_FadeInChannelTimed(-1, defVoicepack^.chunks[snd], -1, fadems, -1)
else
LoopSoundV:= Mix_PlayChannelTimed(-1, defVoicepack^.chunks[snd], -1, -1);
end;
end;
procedure StopSound(snd: TSound);
begin
if not isSoundEnabled then
exit;
if (lastChan[snd] <> -1) and (Mix_Playing(lastChan[snd]) <> 0) then
begin
Mix_HaltChannel(lastChan[snd]);
lastChan[snd]:= -1;
end;
end;
procedure StopSoundChan(chn: LongInt);
begin
if not isSoundEnabled then
exit;
if (chn <> -1) and (Mix_Playing(chn) <> 0) then
Mix_HaltChannel(chn);
end;
procedure StopSoundChan(chn, fadems: LongInt);
begin
if not isSoundEnabled then
exit;
if (chn <> -1) and (Mix_Playing(chn) <> 0) then
Mix_FadeOutChannel(chn, fadems);
end;
procedure PlayMusic;
var s: shortstring;
begin
if (MusicFN = '') or (not isMusicEnabled) then
exit;
s:= '/Music/' + MusicFN;
WriteToConsole(msgLoading + s + ' ');
Mus:= Mix_LoadMUS_RW(rwopsOpenRead(s));
SDLTry(Mus <> nil, false);
WriteLnToConsole(msgOK);
SDLTry(Mix_FadeInMusic(Mus, -1, 3000) <> -1, false)
end;
procedure SetVolume(vol: LongInt);
begin
cInitVolume:= vol;
end;
function ChangeVolume(voldelta: LongInt): LongInt;
begin
ChangeVolume:= 0;
if not (isSoundEnabled or isMusicEnabled) or ((voldelta = 0) and (not (cInitVolume = 0))) then
exit;
inc(Volume, voldelta);
if Volume < 0 then
Volume:= 0;
// apply Volume to all channels
Mix_Volume(-1, Volume);
// get assigned Volume
Volume:= Mix_Volume(-1, -1);
if isMusicEnabled then
Mix_VolumeMusic(Volume * 4 div 8);
ChangeVolume:= Volume * 100 div MIX_MAX_VOLUME;
if (isMusicEnabled) then
if (Volume = 0) then
PauseMusic
else
ResumeMusic;
isAudioMuted:= (Volume = 0);
end;
procedure DampenAudio;
begin
if (isAudioMuted) then
exit;
previousVolume:= Volume;
ChangeVolume(-Volume * 7 div 9);
end;
procedure UndampenAudio;
begin
if (isAudioMuted) then
exit;
ChangeVolume(previousVolume - Volume);
end;
procedure MuteAudio;
begin
if not (isSoundEnabled or isMusicEnabled) then
exit;
if (isAudioMuted) then
begin
ResumeMusic;
ChangeVolume(previousVolume);
end
else
begin
PauseMusic;
previousVolume:= Volume;
ChangeVolume(-Volume);
end;
// isAudioMuted is updated in ChangeVolume
end;
procedure SetMusic(enabled: boolean);
begin
isMusicEnabled:= enabled;
end;
procedure SetMusicName(musicname: shortstring);
begin
MusicFN:= musicname;
end;
procedure PauseMusic;
begin
if (MusicFN = '') or (not isMusicEnabled) then
exit;
if Mus <> nil then
Mix_PauseMusic(Mus);
end;
procedure ResumeMusic;
begin
if (MusicFN = '') or (not isMusicEnabled) then
exit;
if Mus <> nil then
Mix_ResumeMusic(Mus);
end;
procedure ChangeMusic(musicname: shortstring);
begin
MusicFN:= musicname;
if (MusicFN = '') or (not isMusicEnabled) then
exit;
StopMusic;
PlayMusic;
end;
procedure StopMusic;
begin
if (MusicFN = '') or (not isMusicEnabled) then
exit;
if Mus <> nil then
begin
Mix_FreeMusic(Mus);
Mus:= nil;
end
end;
procedure chVoicepack(var s: shortstring);
begin
if CurrentTeam = nil then
OutError(errmsgIncorrectUse + ' "/voicepack"', true);
if s[1]='"' then Delete(s, 1, 1);
if s[byte(s[0])]='"' then
Delete(s, byte(s[0]), 1);
CurrentTeam^.voicepack:= AskForVoicepack(s)
end;
procedure chMute(var s: shortstring);
begin
s:= s; // avoid compiler hint
MuteAudio;
end;
procedure preInitModule;
begin
isMusicEnabled:= true;
isSoundEnabled:= true;
cInitVolume:= 100;
end;
procedure initModule;
var t: LongInt;
i: TSound;
begin
RegisterVariable('voicepack', @chVoicepack, false);
RegisterVariable('mute' , @chMute , true );
MusicFN:='';
Mus:= nil;
isAudioMuted:= false;
isSEBackup:= isSoundEnabled;
Volume:= 0;
SoundTimerTicks:= 0;
defVoicepack:= AskForVoicepack('Default');
for i:= Low(TSound) to High(TSound) do
lastChan[i]:= -1;
// initialize all voices to nil so that they can be loaded lazily
for t:= 0 to cMaxTeams do
if voicepacks[t].name <> '' then
for i:= Low(TSound) to High(TSound) do
voicepacks[t].chunks[i]:= nil;
(* on MOBILE SDL_mixer has to be compiled against Tremor (USE_OGG_TREMOR)
or sound files bigger than 32k will lockup the game on slow cpu *)
for i:= Low(TSound) to High(TSound) do
defVoicepack^.chunks[i]:= nil;
end;
procedure freeModule;
begin
if isSoundEnabled or isMusicEnabled then
ReleaseSound(true);
end;
end.