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path: root/src/screens/UScreenOptionsSound.pas
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unit UScreenOptionsSound;

interface

{$IFDEF FPC}
  {$MODE Delphi}
{$ENDIF}

{$I switches.inc}

uses
  UMenu, SDL, UDisplay, UMusic, UFiles, UIni, UThemes;

type
  TScreenOptionsSound = class(TMenu)
  public
    constructor Create; override;
    function ParseInput(PressedKey: cardinal; CharCode: widechar;
      PressedDown: boolean): boolean; override;
    procedure onShow; override;
  end;

implementation

uses UGraphic, SysUtils;

function TScreenOptionsSound.ParseInput(PressedKey: cardinal;
  CharCode: widechar; PressedDown: boolean): boolean;
begin
  Result := True;
  if (PressedDown) then
  begin // Key Down
        // check normal keys
    case WideCharUpperCase(CharCode)[1] of
      'Q':
      begin
        Result := False;
        Exit;
      end;
    end;

    // check special keys
    case PressedKey of
      SDLK_ESCAPE,
      SDLK_BACKSPACE:
      begin
        // Escape -> save nothing - just leave this screen
        AudioPlayback.PlaySound(SoundLib.Back);
        FadeTo(@ScreenOptions);
      end;
      SDLK_RETURN:
      begin
        if SelInteraction = 8 then
        begin
          Ini.Save;
          AudioPlayback.PlaySound(SoundLib.Back);
          FadeTo(@ScreenOptions);
        end;
      end;
      SDLK_DOWN:
        InteractNext;
      SDLK_UP:
        InteractPrev;
      SDLK_RIGHT:
      begin
        if (SelInteraction >= 0) and (SelInteraction < 8) then
        begin
          AudioPlayback.PlaySound(SoundLib.Option);
          InteractInc;
        end;
      end;
      SDLK_LEFT:
      begin
        if (SelInteraction >= 0) and (SelInteraction < 8) then
        begin
          AudioPlayback.PlaySound(SoundLib.Option);
          InteractDec;
        end;
      end;
    end;
  end;

{**
 * Actually this one isn't pretty - but it does the trick of
 * turning the background music on/off in "real time"
 * bgm = background music
 * TODO: - Fetching the SelectInteraction via something more descriptive
 *       - Obtaining the current value of a select is imho ugly
 *}
  if (SelInteraction = 1) then
  begin
    if TBackgroundMusicOption(SelectsS[1].SelectedOption) = bmoOn then
      SoundLib.StartBgMusic
    else
      SoundLib.PauseBgMusic;
  end;
  
end;

constructor TScreenOptionsSound.Create;
begin
  inherited Create;

  LoadFromTheme(Theme.OptionsSound);

  AddSelectSlide(Theme.OptionsSound.SelectSlideVoicePassthrough,
    Ini.VoicePassthrough, IVoicePassthrough);
  AddSelectSlide(Theme.OptionsSound.SelectBackgroundMusic,
    Ini.BackgroundMusicOption, IBackgroundMusic);
  AddSelectSlide(Theme.OptionsSound.SelectMicBoost, Ini.MicBoost, IMicBoost);
  // TODO: - MicBoost needs to be moved to ScreenOptionsRecord
  AddSelectSlide(Theme.OptionsSound.SelectClickAssist, Ini.ClickAssist, IClickAssist);
  AddSelectSlide(Theme.OptionsSound.SelectBeatClick, Ini.BeatClick, IBeatClick);
  AddSelectSlide(Theme.OptionsSound.SelectThreshold, Ini.ThresholdIndex, IThreshold);
  AddSelectSlide(Theme.OptionsSound.SelectSlidePreviewVolume,
    Ini.PreviewVolume, IPreviewVolume);
  AddSelectSlide(Theme.OptionsSound.SelectSlidePreviewFading,
    Ini.PreviewFading, IPreviewFading);

  AddButton(Theme.OptionsSound.ButtonExit);
  if (Length(Button[0].Text) = 0) then
    AddButtonText(14, 20, Theme.Options.Description[7]);

  Interaction := 0;
end;

procedure TScreenOptionsSound.onShow;
begin
  inherited;
  Interaction := 0;
end;

end.