hedgewars/uSound.pas
author nemo
Mon, 02 May 2011 01:55:14 -0400
changeset 5197 9fa96377a69c
parent 5134 97827ad5c904
child 5238 46ddaf14509d
permissions -rw-r--r--
Basic TARDIS implementation. Still needs proper animation, and probably a check to force reappearance on death of last team mate
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(*
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 * Hedgewars, a free turn based strategy game
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 * Copyright (c) 2004-2011 Andrey Korotaev <unC0Rr@gmail.com>
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 *
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 * This program is free software; you can redistribute it and/or modify
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 * it under the terms of the GNU General Public License as published by
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 * the Free Software Foundation; version 2 of the License
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program; if not, write to the Free Software
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 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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 *)
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{$INCLUDE "options.inc"}
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unit uSound;
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(*
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 * This unit controls the sounds and music of the game.
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 * Doesn't really do anything if isSoundEnabled = false.
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 *
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 * There are three basic types of sound controls:
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 *    Music        - The background music of the game:
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 *                   * will only be played if isMusicEnabled = true
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 *                   * can be started, changed, paused and resumed
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 *    Sound        - Can be started and stopped
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 *    Looped Sound - Subtype of sound: plays in a loop using a
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 *                   "channel", of which the id is returned on start.
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 *                   The channel id can be used to stop a specific sound loop.
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 *)
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interface
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uses SDLh, uConsts, uTypes, sysutils;
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var MusicFN: shortstring; // music file name
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procedure initModule;
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procedure freeModule;
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procedure InitSound; // Initiates sound-system if isSoundEnabled.
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procedure ReleaseSound; // Releases sound-system and used resources.
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procedure SoundLoad; // Preloads some sounds for performance reasons.
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// MUSIC
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// Obvious music commands for music track specified in MusicFN.
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procedure PlayMusic;
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procedure PauseMusic;
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procedure ResumeMusic;
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procedure ChangeMusic; // Replaces music track with current MusicFN and plays it.
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// SOUNDS
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// Plays the sound snd [from a given voicepack],
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// if keepPlaying is given and true,
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// then the sound's playback won't be interrupted if asked to play again.
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procedure PlaySound(snd: TSound);
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procedure PlaySound(snd: TSound; keepPlaying: boolean);
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procedure PlaySound(snd: TSound; voicepack: PVoicepack);
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procedure PlaySound(snd: TSound; voicepack: PVoicepack; keepPlaying: boolean);
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// Plays sound snd [of voicepack] in a loop, but starts with fadems milliseconds of fade-in.
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// Returns sound channel of the looped sound.
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function  LoopSound(snd: TSound): LongInt;
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function  LoopSound(snd: TSound; fadems: LongInt): LongInt;
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function  LoopSound(snd: TSound; voicepack: PVoicepack): LongInt; // WTF?
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function  LoopSound(snd: TSound; voicepack: PVoicepack; fadems: LongInt): LongInt;
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// Stops the normal/looped sound of the given type/in the given channel
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// [with a fade-out effect for fadems milliseconds].
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procedure StopSound(snd: TSound);
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procedure StopSound(chn: LongInt);
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procedure StopSound(chn, fadems: LongInt);
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// MISC
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// Modifies the sound volume of the game by voldelta and returns the new volume level.
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function  ChangeVolume(voldelta: LongInt): LongInt;
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// Returns a pointer to the voicepack with the given name.
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function  AskForVoicepack(name: shortstring): Pointer;
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implementation
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uses uVariables, uConsole, uUtils, uCommands, uDebug;
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const chanTPU = 32;
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var Volume: LongInt;
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    lastChan: array [TSound] of LongInt;
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    voicepacks: array[0..cMaxTeams] of TVoicepack;
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    defVoicepack: PVoicepack;
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    Mus: PMixMusic = nil;
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function  AskForVoicepack(name: shortstring): Pointer;
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var i: Longword;
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    locName, path: shortstring;
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begin
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i:= 0;
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    // First, attempt to locate a localised version of the voice
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    if cLocale <> 'en' then
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        begin
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        locName:= name+'_'+cLocale;
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        path:= Pathz[ptVoices] + '/' + locName;
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        if DirectoryExists(path) then name:= locName
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        else if Length(cLocale) > 2 then
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            begin
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            locName:= name+'_'+Copy(cLocale,1,2);
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            path:= Pathz[ptVoices] + '/' + locName;
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            if DirectoryExists(path) then name:= locName
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            end
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        end;
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    // If that fails, use the unmodified one
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    while (voicepacks[i].name <> name) and (voicepacks[i].name <> '') do
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        begin
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        inc(i);
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        TryDo(i <= cMaxTeams, 'Engine bug: AskForVoicepack i > cMaxTeams', true)
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        end;
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    voicepacks[i].name:= name;
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    AskForVoicepack:= @voicepacks[i]
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end;
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procedure InitSound;
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var i: TSound;
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    channels: LongInt;
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begin
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    if not isSoundEnabled then exit;
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    WriteToConsole('Init sound...');
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    isSoundEnabled:= SDL_InitSubSystem(SDL_INIT_AUDIO) >= 0;
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{$IFDEF IPHONEOS}
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    channels:= 1;
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{$ELSE}
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    channels:= 2;
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{$ENDIF}
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    if isSoundEnabled then
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        isSoundEnabled:= Mix_OpenAudio(44100, $8010, channels, 1024) = 0;
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{$IFDEF SDL_MIXER_NEWER}
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    WriteToConsole('Init SDL_mixer... ');
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    SDLTry(Mix_Init(MIX_INIT_OGG) <> 0, true);
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    WriteLnToConsole(msgOK);
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{$ENDIF}
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    if isSoundEnabled then
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        WriteLnToConsole(msgOK)
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    else
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        WriteLnToConsole(msgFailed);
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    Mix_AllocateChannels(Succ(chanTPU));
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    if isMusicEnabled then
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        Mix_VolumeMusic(50);
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    for i:= Low(TSound) to High(TSound) do
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        lastChan[i]:= -1;
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    Volume:= 0;
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    ChangeVolume(cInitVolume)
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end;
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procedure ReleaseSound;
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var i: TSound;
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    t: Longword;
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begin
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    for t:= 0 to cMaxTeams do
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        if voicepacks[t].name <> '' then
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            for i:= Low(TSound) to High(TSound) do
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                if voicepacks[t].chunks[i] <> nil then
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                    Mix_FreeChunk(voicepacks[t].chunks[i]);
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    if Mus <> nil then
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        Mix_FreeMusic(Mus);
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{$IFDEF SDL_MIXER_NEWER}
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    // make sure all instances of sdl_mixer are unloaded before continuing
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    while Mix_Init(0) <> 0 do
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        Mix_Quit();
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{$ENDIF}
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    Mix_CloseAudio();
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end;
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procedure SoundLoad;
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var i: TSound;
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    t: Longword;
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    s:shortstring;
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begin
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    if not isSoundEnabled then exit;
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    defVoicepack:= AskForVoicepack('Default');
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    for t:= 0 to cMaxTeams do
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        if voicepacks[t].name <> '' then
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            for i:= Low(TSound) to High(TSound) do
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                voicepacks[t].chunks[i]:= nil;
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    for i:= Low(TSound) to High(TSound) do
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    begin
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        defVoicepack^.chunks[i]:= nil;
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        // preload all the big sound files (>32k) that would otherwise lockup the game
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        if (i in [sndBeeWater, sndBee, sndCake, sndHellishImpact1, sndHellish, sndHomerun,
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                  sndMolotov, sndMortar, sndRideOfTheValkyries, sndYoohoo])
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            and (Soundz[i].Path <> ptVoices) and (Soundz[i].FileName <> '') then
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        begin
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            s:= Pathz[Soundz[i].Path] + '/' + Soundz[i].FileName;
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            WriteToConsole(msgLoading + s + ' ');
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            defVoicepack^.chunks[i]:= Mix_LoadWAV_RW(SDL_RWFromFile(Str2PChar(s), 'rb'), 1);
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            TryDo(defVoicepack^.chunks[i] <> nil, msgFailed, true);
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            WriteLnToConsole(msgOK);
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        end;
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    end;
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end;
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procedure PlaySound(snd: TSound);
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begin
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    PlaySound(snd, nil, false);
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end;
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procedure PlaySound(snd: TSound; keepPlaying: boolean);
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begin
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    PlaySound(snd, nil, keepPlaying);
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end;
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procedure PlaySound(snd: TSound; voicepack: PVoicepack);
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begin
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    PlaySound(snd, voicepack, false);
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end;
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procedure PlaySound(snd: TSound; voicepack: PVoicepack; keepPlaying: boolean);
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var s:shortstring;
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begin
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    if (not isSoundEnabled) or fastUntilLag then
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        exit;
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    if keepPlaying and (lastChan[snd] <> -1) and (Mix_Playing(lastChan[snd]) <> 0) then
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        exit;
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    if (voicepack <> nil) then
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    begin
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        if (voicepack^.chunks[snd] = nil) and (Soundz[snd].Path = ptVoices) and (Soundz[snd].FileName <> '') then
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        begin
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            s:= Pathz[Soundz[snd].Path] + '/' + voicepack^.name + '/' + Soundz[snd].FileName;
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            WriteToConsole(msgLoading + s + ' ');
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            voicepack^.chunks[snd]:= Mix_LoadWAV_RW(SDL_RWFromFile(Str2PChar(s), 'rb'), 1);
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            if voicepack^.chunks[snd] = nil then
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                WriteLnToConsole(msgFailed)
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            else
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                WriteLnToConsole(msgOK)
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        end;
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        lastChan[snd]:= Mix_PlayChannelTimed(-1, voicepack^.chunks[snd], 0, -1)
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    end
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    else
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    begin
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        if (defVoicepack^.chunks[snd] = nil) and (Soundz[snd].Path <> ptVoices) and (Soundz[snd].FileName <> '') then
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        begin
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            s:= Pathz[Soundz[snd].Path] + '/' + Soundz[snd].FileName;
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            WriteToConsole(msgLoading + s + ' ');
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            defVoicepack^.chunks[snd]:= Mix_LoadWAV_RW(SDL_RWFromFile(Str2PChar(s), 'rb'), 1);
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            TryDo(defVoicepack^.chunks[snd] <> nil, msgFailed, true);
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            WriteLnToConsole(msgOK);
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        end;
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        lastChan[snd]:= Mix_PlayChannelTimed(-1, defVoicepack^.chunks[snd], 0, -1)
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    end;
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end;
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function LoopSound(snd: TSound): LongInt;
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begin
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    LoopSound:= LoopSound(snd, nil)
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end;
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function LoopSound(snd: TSound; fadems: LongInt): LongInt;
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begin
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    LoopSound:= LoopSound(snd, nil, fadems)
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end;
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function LoopSound(snd: TSound; voicepack: PVoicepack): LongInt;
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begin
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    voicepack:= voicepack;    // avoid compiler hint
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    LoopSound:= LoopSound(snd, nil, 0)
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end;
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function LoopSound(snd: TSound; voicepack: PVoicepack; fadems: LongInt): LongInt;
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var s: shortstring;
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begin
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    if (not isSoundEnabled) or fastUntilLag then
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    begin
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        LoopSound:= -1;
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        exit
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    end;
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    if (voicepack <> nil) then
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    begin
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        if (voicepack^.chunks[snd] = nil) and (Soundz[snd].Path = ptVoices) and (Soundz[snd].FileName <> '') then
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        begin
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            s:= Pathz[Soundz[snd].Path] + '/' + voicepack^.name + '/' + Soundz[snd].FileName;
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            WriteToConsole(msgLoading + s + ' ');
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            voicepack^.chunks[snd]:= Mix_LoadWAV_RW(SDL_RWFromFile(Str2PChar(s), 'rb'), 1);
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            if voicepack^.chunks[snd] = nil then
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                WriteLnToConsole(msgFailed)
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            else
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                WriteLnToConsole(msgOK)
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        end;
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        LoopSound:= Mix_PlayChannelTimed(-1, voicepack^.chunks[snd], -1, -1)
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    end
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    else
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    begin
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        if (defVoicepack^.chunks[snd] = nil) and (Soundz[snd].Path <> ptVoices) and (Soundz[snd].FileName <> '') then
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        begin
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            s:= Pathz[Soundz[snd].Path] + '/' + Soundz[snd].FileName;
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            WriteToConsole(msgLoading + s + ' ');
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            defVoicepack^.chunks[snd]:= Mix_LoadWAV_RW(SDL_RWFromFile(Str2PChar(s), 'rb'), 1);
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            TryDo(defVoicepack^.chunks[snd] <> nil, msgFailed, true);
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            WriteLnToConsole(msgOK);
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        end;
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        if fadems > 0 then
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            LoopSound:= Mix_FadeInChannelTimed(-1, defVoicepack^.chunks[snd], -1, fadems, -1)
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        else
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            LoopSound:= Mix_PlayChannelTimed(-1, defVoicepack^.chunks[snd], -1, -1);
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    end;
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end;
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procedure StopSound(snd: TSound);
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begin
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    if not isSoundEnabled then exit;
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    if (lastChan[snd] <> -1) and (Mix_Playing(lastChan[snd]) <> 0) then
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    begin
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        Mix_HaltChannel(lastChan[snd]);
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        lastChan[snd]:= -1;
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    end;
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end;
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procedure StopSound(chn: LongInt);
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begin
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    if not isSoundEnabled then exit;
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    if (chn <> -1) and (Mix_Playing(chn) <> 0) then
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        Mix_HaltChannel(chn);
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end;
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procedure StopSound(chn, fadems: LongInt);
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begin
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    if not isSoundEnabled then exit;
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    if (chn <> -1) and (Mix_Playing(chn) <> 0) then
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        Mix_FadeOutChannel(chn, fadems);
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end;
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procedure PlayMusic;
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var s: shortstring;
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begin
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    if (not isSoundEnabled) or (MusicFN = '') or (not isMusicEnabled) then
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        exit;
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    s:= PathPrefix + '/Music/' + MusicFN;
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    WriteToConsole(msgLoading + s + ' ');
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092cb8deffc5 Fix some bug, finish playlist implementation
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    Mus:= Mix_LoadMUS(Str2PChar(s));
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    TryDo(Mus <> nil, msgFailed, false);
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    WriteLnToConsole(msgOK);
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   369
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    SDLTry(Mix_FadeInMusic(Mus, -1, 3000) <> -1, false)
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end;
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function ChangeVolume(voldelta: LongInt): LongInt;
174
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begin
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    if not isSoundEnabled then
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        exit(0);
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4832b77ec958 restored volumen control (hoorray)
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   377
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    inc(Volume, voldelta);
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    if Volume < 0 then Volume:= 0;
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    Mix_Volume(-1, Volume);
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    Volume:= Mix_Volume(-1, -1);
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    if isMusicEnabled then Mix_VolumeMusic(Volume * 4 div 8);
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    ChangeVolume:= Volume * 100 div MIX_MAX_VOLUME
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end;
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procedure PauseMusic;
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begin
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    if (MusicFN = '') or (not isMusicEnabled) then
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        exit;
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    Mix_PauseMusic(Mus);
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end;
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procedure ResumeMusic;
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   395
begin
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   396
    if (MusicFN = '') or (not isMusicEnabled) then
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   397
        exit;
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51d3f4b6293a revert audio to use SDL_mixer -- also frontend uses it, so it needs sdlmixer sources
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   398
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   399
    Mix_ResumeMusic(Mus);
1712
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end;
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unc0rr
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   401
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procedure ChangeMusic;
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   403
begin
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   404
    if (MusicFN = '') or (not isMusicEnabled) then
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   405
        exit;
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   406
5134
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   407
    // get rid of current music
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   408
    if Mus <> nil then
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   409
        Mix_FreeMusic(Mus);
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   410
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   411
    PlayMusic;
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   412
end;
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Henek
parents: 4461
diff changeset
   413
4398
36d7e4b6ca81 Move some command handlers out of uCommands into more appropriate places, thus removing some dependencies. Ideally uCommands shouldn't depend on anything (except for uTypes and uConsts probably)
unc0rr
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   414
procedure chVoicepack(var s: shortstring);
36d7e4b6ca81 Move some command handlers out of uCommands into more appropriate places, thus removing some dependencies. Ideally uCommands shouldn't depend on anything (except for uTypes and uConsts probably)
unc0rr
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   415
begin
36d7e4b6ca81 Move some command handlers out of uCommands into more appropriate places, thus removing some dependencies. Ideally uCommands shouldn't depend on anything (except for uTypes and uConsts probably)
unc0rr
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   416
    if CurrentTeam = nil then OutError(errmsgIncorrectUse + ' "/voicepack"', true);
36d7e4b6ca81 Move some command handlers out of uCommands into more appropriate places, thus removing some dependencies. Ideally uCommands shouldn't depend on anything (except for uTypes and uConsts probably)
unc0rr
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   417
    if s[1]='"' then Delete(s, 1, 1);
36d7e4b6ca81 Move some command handlers out of uCommands into more appropriate places, thus removing some dependencies. Ideally uCommands shouldn't depend on anything (except for uTypes and uConsts probably)
unc0rr
parents: 4377
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   418
    if s[byte(s[0])]='"' then Delete(s, byte(s[0]), 1);
36d7e4b6ca81 Move some command handlers out of uCommands into more appropriate places, thus removing some dependencies. Ideally uCommands shouldn't depend on anything (except for uTypes and uConsts probably)
unc0rr
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   419
    CurrentTeam^.voicepack:= AskForVoicepack(s)
36d7e4b6ca81 Move some command handlers out of uCommands into more appropriate places, thus removing some dependencies. Ideally uCommands shouldn't depend on anything (except for uTypes and uConsts probably)
unc0rr
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   420
end;
36d7e4b6ca81 Move some command handlers out of uCommands into more appropriate places, thus removing some dependencies. Ideally uCommands shouldn't depend on anything (except for uTypes and uConsts probably)
unc0rr
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diff changeset
   421
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4e48c276a468 In pascal unit is a namespace
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   422
procedure initModule;
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b9ca1bfca24f complete the replacement of init/free wrappers for every unit
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   423
begin
4398
36d7e4b6ca81 Move some command handlers out of uCommands into more appropriate places, thus removing some dependencies. Ideally uCommands shouldn't depend on anything (except for uTypes and uConsts probably)
unc0rr
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   424
    RegisterVariable('voicepack', vtCommand, @chVoicepack, false);
2948
3f21a9dc93d0 Replace tabs with spaces using 'expand -t 4' command
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   425
    MusicFN:='';
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b9ca1bfca24f complete the replacement of init/free wrappers for every unit
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   426
end;
b9ca1bfca24f complete the replacement of init/free wrappers for every unit
koda
parents: 2674
diff changeset
   427
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4e48c276a468 In pascal unit is a namespace
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   428
procedure freeModule;
2716
b9ca1bfca24f complete the replacement of init/free wrappers for every unit
koda
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   429
begin
3615
b78d7959540a further code cleanup and less redundancy
koda
parents: 3529
diff changeset
   430
    if isSoundEnabled then
b78d7959540a further code cleanup and less redundancy
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diff changeset
   431
        ReleaseSound();
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b9ca1bfca24f complete the replacement of init/free wrappers for every unit
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diff changeset
   432
end;
b9ca1bfca24f complete the replacement of init/free wrappers for every unit
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diff changeset
   433
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51d3f4b6293a revert audio to use SDL_mixer -- also frontend uses it, so it needs sdlmixer sources
koda
parents: 2501
diff changeset
   434
end.
2192
4763a778c033 - Fix quickplay sound bug triggered by two faults: ttsmj's (passing voicepack with empty name in team config) and koda's (he changed fallback to default scheme condition)
unc0rr
parents: 2191
diff changeset
   435