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path: root/Game/Code/Menu/UMenu.pas
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unit UMenu;

interface

uses OpenGL12, SysUtils, UTexture, UMenuStatic, UMenuText, UMenuButton, UMenuSelect, UMenuSelectSlide,
  UMenuInteract, UThemes;

type
{  Int16 = SmallInt;}

  PMenu = ^TMenu;
  TMenu = class
    protected
      Interactions:   array of TInteract;
      SelInteraction: integer;
      Static:         array of TStatic;
      Button:         array of TButton;
      Selects:        array of TSelect;
      SelectsS:       array of TSelectSlide;
      BackImg:        TTexture;
      BackW:          integer;
      BackH:          integer;
    public
      Text:       array of TText;
      mX:         integer; // mouse X
      mY:         integer; // mouse Y

      Fade:       integer; // fade type
      ShowFinish: boolean; // true if there is no fade 


      destructor Destroy; override;
      constructor Create; overload; virtual;
      constructor Create(Back: string); overload; virtual; // Back is a JPG resource name for background
      constructor Create(Back: string; W, H: integer); overload; virtual; // W and H are the number of overlaps

      // interaction
      procedure AddInteraction(Typ, Num: integer);
      procedure SetInteraction(Num: integer);
      property Interaction: integer read SelInteraction write SetInteraction;

      // background
      procedure AddBackground(Name: string);

      // static
      function AddStatic(ThemeStatic: TThemeStatic): integer; overload;
      function AddStatic(X, Y, W, H: real; Name: string): integer; overload;
      function AddStatic(X, Y, W, H: real; Name, Format, Typ: string): integer; overload;
      function AddStatic(X, Y, W, H: real; ColR, ColG, ColB: real; Name, Format, Typ: string): integer; overload;
      function AddStatic(X, Y, W, H, Z: real; ColR, ColG, ColB: real; Name, Format, Typ: string): integer; overload;
      function AddStatic(X, Y, W, H: real; ColR, ColG, ColB: real; Name, Format, Typ: string; Color: integer): integer; overload;
      function AddStatic(X, Y, W, H, Z: real; ColR, ColG, ColB: real; Name, Format, Typ: string; Color: integer): integer; overload;
      function AddStatic(X, Y, W, H, Z: real; ColR, ColG, ColB: real; TexX1, TexY1, TexX2, TexY2: real; Name, Format, Typ: string; Color: integer): integer; overload;

      // text
      function AddText(ThemeText: TThemeText): integer; overload;
      function AddText(X, Y: real; Tekst: string): integer; overload;
      function AddText(X, Y: real; Style: integer; Size, ColR, ColG, ColB: real; Tekst: string): integer; overload;
      function AddText(X, Y, W: real; Style: integer; Size, ColR, ColG, ColB: real; Align: integer; Tekst: string): integer; overload;

      // button
      function AddButton(ThemeButton: TThemeButton): integer; overload;
      function AddButton(X, Y, W, H: real; Name: String): integer; overload;
      function AddButton(X, Y, W, H: real; Name, Format, Typ: String; Reflection: Boolean): integer; overload;
      function AddButton(X, Y, W, H, ColR, ColG, ColB, Int, DColR, DColG, DColB, DInt: real; Name, Format, Typ: String; Reflection: Boolean): integer; overload;
      procedure ClearButtons;
      procedure AddButtonText(AddX, AddY: real; AddText: string); overload;
      procedure AddButtonText(AddX, AddY: real; ColR, ColG, ColB: real; AddText: string); overload;
      procedure AddButtonText(AddX, AddY: real; ColR, ColG, ColB: real; Font: integer; Size: integer; Align: integer; AddText: string); overload;

      // select
      function AddSelect(ThemeSelect: TThemeSelect; var Data: integer; Values: array of string): integer; overload;
      function AddSelect(X, Y, W, H, SkipX, ColR, ColG, ColB, Int, DColR, DColG, DColB, DInt,
        TColR, TColG, TColB, TInt, TDColR, TDColG, TDColB, TDInt,
        SBGColR, SBGColG, SBGColB, SBGInt, SBGDColR, SBGDColG, SBGDColB, SBGDInt,
        STColR, STColG, STColB, STInt, STDColR, STDColG, STDColB, STDInt: real;
        Name, Typ: String; SBGName, SBGTyp: String;
        Caption: string; var Data: integer): integer; overload;
      procedure AddSelectOption(AddX, AddY: real; AddText: string); overload;
      procedure AddSelectOption(SelectNo: Cardinal; AddX, AddY: real; AddText: string); overload;
      procedure UpdateSelectOptions(ThemeSelect: TThemeSelect; SelectNum: integer; Values: array of string; var Data: integer);

      // select slide
      function AddSelectSlide(ThemeSelectS: TThemeSelectSlide; var Data: integer; Values: array of string): integer; overload;
      function AddSelectSlide(X, Y, W, H, SkipX, SBGW, ColR, ColG, ColB, Int, DColR, DColG, DColB, DInt,
        TColR, TColG, TColB, TInt, TDColR, TDColG, TDColB, TDInt,
        SBGColR, SBGColG, SBGColB, SBGInt, SBGDColR, SBGDColG, SBGDColB, SBGDInt,
        STColR, STColG, STColB, STInt, STDColR, STDColG, STDColB, STDInt: real;
        Name, Typ: String; SBGName, SBGTyp: String;
        Caption: string; var Data: integer): integer; overload;
      procedure AddSelectSlideOption(AddText: string); overload;
      procedure AddSelectSlideOption(SelectNo: Cardinal; AddText: string); overload;
      procedure UpdateSelectSlideOptions(ThemeSelectSlide: TThemeSelectSlide; SelectNum: integer; Values: array of string; var Data: integer);


//      function AddWidget(X, Y : UInt16; WidgetSrc : PSDL_Surface): Int16;
//      procedure ClearWidgets(MinNumber : Int16);
      procedure FadeTo(Screen: PMenu);

      function DrawBG: boolean; virtual;
      function DrawFG: boolean; virtual;
      function Draw: boolean; virtual;
      function ParseInput(PressedKey: Cardinal; ScanCode: byte; PressedDown : Boolean): Boolean; virtual;
      function ParseMouse(Typ: integer; X: integer; Y: integer): Boolean; virtual; abstract;
      function InRegion(X1, Y1, X2, Y2, X, Y: real): Boolean;
      function InStaticRegion(StaticNr: integer; X, Y: integer): Boolean;
      procedure onShow; virtual;
      procedure onShowFinish; virtual;
      procedure onHide; virtual;

      procedure SetAnimationProgress(Progress: real); virtual;


      procedure InteractNext; virtual;
      procedure InteractCustom(CustomSwitch: integer); virtual;
      procedure InteractPrev; virtual;
      procedure InteractInc; virtual;
      procedure InteractDec; virtual;

      procedure AddBox(X, Y, W, H: real);
  end;

const
  pmMove = 1;
  pmClick = 2;
  pmUnClick = 3;

  iButton = 0; // interaction type
  iSelect = 1;
  iText = 2;
  iSelectS = 3;

//  fBlack = 0; // fade type
//  fWhite = 1;

implementation

uses UMain, UDrawTexture, UGraphic, UDisplay, UCovers, USkins;

destructor TMenu.Destroy;
begin
  inherited;
end;

constructor TMenu.Create;
begin
  Fade := 0;//fWhite;

  SetLength(Static, 0);
  SetLength(Button, 0);

  BackImg.TexNum := -1;
end;

constructor TMenu.Create(Back: String);
begin
  inherited Create;

  if Back <> '' then begin
//    BackImg := Texture.LoadTexture(true, PChar(Back), 'JPG', 'Plain', 0);
    BackImg := Texture.LoadTexture(PChar(Back), 'JPG', 'Plain', 0); // new theme system
    BackImg.W := 800;//640;
    BackImg.H := 600;//480;
    BackW := 1;
    BackH := 1;
  end else
    BackImg.TexNum := -1;
end;

constructor TMenu.Create(Back: string; W, H: integer);
begin
  Create(Back);
  BackImg.W := BackImg.W / W;
  BackImg.H := BackImg.H / H;
  BackW := W;
  BackH := H;
end;

procedure TMenu.AddInteraction(Typ, Num: integer);
var
  IntNum:   integer;
begin
  IntNum := Length(Interactions);
  SetLength(Interactions, IntNum+1);
  Interactions[IntNum].Typ := Typ;
  Interactions[IntNum].Num := Num;
  Interaction := 0;
end;

procedure TMenu.SetInteraction(Num: integer);
var
  OldNum, OldTyp:   integer;
  NewNum, NewTyp:   integer;
begin
  // set inactive
  OldNum := Interactions[Interaction].Num;
  OldTyp := Interactions[Interaction].Typ;
  case OldTyp of
    iButton:  Button[OldNum].Selected := False;
    iSelect:  Selects[OldNum].Selected := False;
    iText:    Text[OldNum].Selected := False;
    iSelectS: SelectsS[OldNum].Selected := False;
  end;

  // set active
  SelInteraction := Num;
  NewNum := Interactions[Interaction].Num;
  NewTyp := Interactions[Interaction].Typ;
  case NewTyp of
    iButton:  Button[NewNum].Selected := True;
    iSelect:  Selects[NewNum].Selected := True;
    iText:    Text[NewNum].Selected := True;
    iSelectS: SelectsS[NewNum].Selected := True;
  end;
end;

procedure TMenu.AddBackground(Name: string);
begin
  if Name <> '' then begin
//    BackImg := Texture.LoadTexture(false, PChar(Skin.SkinPath + FileName), 'JPG', 'Plain', 0); // new theme system
    BackImg := Texture.GetTexture(Skin.GetTextureFileName(Name), 'Plain');
    BackImg.W := 800;
    BackImg.H := 600;
    BackW := 1;
    BackH := 1;
  end;
end;

function TMenu.AddStatic(ThemeStatic: TThemeStatic): integer;
begin
  Result := AddStatic(ThemeStatic.X, ThemeStatic.Y, ThemeStatic.W, ThemeStatic.H, ThemeStatic.Z,
    ThemeStatic.ColR, ThemeStatic.ColG, ThemeStatic.ColB,
    ThemeStatic.TexX1, ThemeStatic.TexY1, ThemeStatic.TexX2, ThemeStatic.TexY2,
    {<0.5.1: Skin.SkinPath + ThemeStatic.Tex, 0.5.1:} Skin.GetTextureFileName(ThemeStatic.Tex),
    'JPG', ThemeStatic.Typ, $FFFFFF);
    //'Font Black');
end;

function TMenu.AddStatic(X, Y, W, H: real; Name: string): integer;
begin
  Result := AddStatic(X, Y, W, H, Name, 'JPG', 'Plain');
end;

function TMenu.AddStatic(X, Y, W, H: real; ColR, ColG, ColB: real; Name, Format, Typ: string): integer;
var
  StatNum:  integer;
begin
  Result := AddStatic(X, Y, W, H, ColR, ColG, ColB, Name, Format, Typ, $FFFFFF);
end;

function TMenu.AddStatic(X, Y, W, H, Z: real; ColR, ColG, ColB: real; Name, Format, Typ: string): integer;
var
  StatNum:  integer;
begin
  Result := AddStatic(X, Y, W, H, Z, ColR, ColG, ColB, Name, Format, Typ, $FFFFFF);
end;

function TMenu.AddStatic(X, Y, W, H: real; Name, Format, Typ: string): integer;
var
  StatNum:  integer;
begin
  // adds static
  StatNum := Length(Static);
  SetLength(Static, StatNum + 1);
//  Static[StatNum] := TStatic.Create(Texture.LoadTexture(PChar(Name), PChar(Format), PChar(Typ), $FF00FF)); // $FFFFFF
//  Static[StatNum] := TStatic.Create(Texture.LoadTexture(Skin.SkinReg, PChar(Name), PChar(Format), PChar(Typ), $FF00FF)); // new skin system
  Static[StatNum] := TStatic.Create(Texture.LoadTexture(PChar(Name), PChar(Format), PChar(Typ), $FF00FF)); // new skin

  // configures static
  Static[StatNum].Texture.X := X;
  Static[StatNum].Texture.Y := Y;
  Static[StatNum].Texture.W := W;
  Static[StatNum].Texture.H := H;
  Static[StatNum].Visible := true;
  Result := StatNum;
end;

function TMenu.AddStatic(X, Y, W, H: real; ColR, ColG, ColB: real; Name, Format, Typ: string; Color: integer): integer;
var
  StatNum:  integer;
begin
  Result := AddStatic(X, Y, W, H, 0, ColR, ColG, ColB, Name, Format, Typ, Color);
end;

function TMenu.AddStatic(X, Y, W, H, Z: real; ColR, ColG, ColB: real; Name, Format, Typ: string; Color: integer): integer;
begin
  Result := AddStatic(X, Y, W, H, Z, ColR, ColG, ColB, 0, 0, 1, 1, Name, Format, Typ, Color);
//
end;

function TMenu.AddStatic(X, Y, W, H, Z: real; ColR, ColG, ColB: real; TexX1, TexY1, TexX2, TexY2: real; Name, Format, Typ: string; Color: integer): integer;
var
  StatNum:  integer;
begin
  // adds static
  StatNum := Length(Static);
  SetLength(Static, StatNum + 1);
//  Static[StatNum] := TStatic.Create(Texture.LoadTexture(PChar(Name), PChar(Format), PChar(Typ), Color));
//  Static[StatNum] := TStatic.Create(Texture.LoadTexture(Skin.SkinReg, PChar(Name), PChar(Format), PChar(Typ), Color)); // new skin system
Static[StatNum] := TStatic.Create(Texture.LoadTexture(PChar(Name), PChar(Format), PChar(Typ), Color)); // new skin
//  Static[StatNum] := TStatic.Create(Texture.GetTexture(Name, Typ));

  // configures static
  Static[StatNum].Texture.X := X;
  Static[StatNum].Texture.Y := Y;
  Static[StatNum].Texture.W := W;
  Static[StatNum].Texture.H := H;
  Static[StatNum].Texture.Z := Z;
  Static[StatNum].Texture.ColR := ColR;
  Static[StatNum].Texture.ColG := ColG;
  Static[StatNum].Texture.ColB := ColB;
  Static[StatNum].Texture.TexX1 := TexX1;
  Static[StatNum].Texture.TexY1 := TexY1;
  Static[StatNum].Texture.TexX2 := TexX2;
  Static[StatNum].Texture.TexY2 := TexY2;
  Static[StatNum].Texture.Alpha := 1;
  Static[StatNum].Visible := true;
  Result := StatNum;
end;

function TMenu.AddText(ThemeText: TThemeText): integer;
begin
  Result := AddText(ThemeText.X, ThemeText.Y, ThemeText.W, ThemeText.Font, ThemeText.Size,
    ThemeText.ColR, ThemeText.ColG, ThemeText.ColB, ThemeText.Align, ThemeText.Text);
end;

function TMenu.AddText(X, Y: real; Tekst: string): integer;
var
  TextNum:  integer;
begin
  // adds text
  TextNum := Length(Text);
  SetLength(Text, TextNum + 1);
  Text[TextNum] := TText.Create(X, Y, Tekst);
  Result := TextNum;
end;

function TMenu.AddText(X, Y: real; Style: integer; Size, ColR, ColG, ColB: real; Tekst: string): integer;
begin
  Result := AddText(X, Y, 0, Style, Size, ColR, ColG, ColB, 0, Tekst);
end;

function TMenu.AddText(X, Y, W: real; Style: integer; Size, ColR, ColG, ColB: real; Align: integer; Tekst: string): integer;
var
  TextNum:  integer;
begin
  // adds text
  TextNum := Length(Text);
  SetLength(Text, TextNum + 1);
  Text[TextNum] := TText.Create(X, Y, W, Style, Size, ColR, ColG, ColB, Align, Tekst);
  Result := TextNum;
end;


// Method to add a button in our TMenu. It returns the assigned ButtonNumber
function TMenu.AddButton(ThemeButton: TThemeButton): integer;
var
  BT:     integer;
  BTLen:  integer;
  temp:   integer;
begin
{  Result := AddButton(ThemeButton.X, ThemeButton.Y, ThemeButton.W, ThemeButton.H,
    ThemeButton.ColR, ThemeButton.ColG, ThemeButton.ColB, ThemeButton.Int,
    ThemeButton.DColR, ThemeButton.DColG, ThemeButton.DColB, ThemeButton.DInt,
    ThemeButton.Tex, 'JPG', 'Font Black');}

  Result := AddButton(ThemeButton.X, ThemeButton.Y, ThemeButton.W, ThemeButton.H,
    ThemeButton.ColR, ThemeButton.ColG, ThemeButton.ColB, ThemeButton.Int,
    ThemeButton.DColR, ThemeButton.DColG, ThemeButton.DColB, ThemeButton.DInt,
    Skin.GetTextureFileName(ThemeButton.Tex), 'JPG', ThemeButton.Typ, ThemeButton.Reflection);

  Button[Result].Z := ThemeButton.Z;


  BTLen := Length(ThemeButton.Text);
  for BT := 0 to BTLen-1 do begin
    AddButtonText(ThemeButton.Text[BT].X, ThemeButton.Text[BT].Y,
      ThemeButton.Text[BT].ColR, ThemeButton.Text[BT].ColG, ThemeButton.Text[BT].ColB,
      ThemeButton.Text[BT].Font, ThemeButton.Text[BT].Size, ThemeButton.Text[BT].Align,
      ThemeButton.Text[BT].Text);
  end;
end;

function TMenu.AddButton(X, Y, W, H: real; Name: String): integer;
begin
  Result := AddButton(X, Y, W, H, Name, 'JPG', 'Plain', False);
end;

function TMenu.AddButton(X, Y, W, H: real; Name, Format, Typ: String; Reflection: Boolean): integer;
begin
  Result := AddButton(X, Y, W, H, 1, 1, 1, 1, 1, 1, 1, 0.5, Name, 'JPG', 'Plain', Reflection);
end;

function TMenu.AddButton(X, Y, W, H, ColR, ColG, ColB, Int, DColR, DColG, DColB, DInt: real; Name, Format, Typ: String; Reflection: Boolean): integer;
begin
  // adds button
  Result := Length(Button);
  SetLength(Button, Result + 1);
//  Button[Result] := TButton.Create(Texture.GetTexture(Name, Typ));

  // check here for cache
//  Texture.GetTexture(Name, Typ, false); // preloads textures and creates cahce mipmap when needed
//  if Covers.CoverExists(Name) then
  Button[Result] := TButton.Create(Texture.GetTexture(Name, Typ, true)); // use cache texture
//  else
//    Button[Result] := TButton.Create(Texture.GetTexture(Name, Typ, false)); // don't use cache texture}

  // configures button
  Button[Result].Texture.X := X;
  Button[Result].Texture.Y := Y;
  Button[Result].Texture.W := W;
  Button[Result].Texture.H := H;
  Button[Result].SelectColR := ColR;
  Button[Result].SelectColG := ColG;
  Button[Result].SelectColB := ColB;
  Button[Result].SelectInt := Int;
  Button[Result].DeselectColR := DColR;
  Button[Result].DeselectColG := DColG;
  Button[Result].DeselectColB := DColB;
  Button[Result].DeselectInt := DInt;
  Button[Result].Texture.TexX1 := 0;
  Button[Result].Texture.TexY1 := 0;
  Button[Result].Texture.TexX2 := 1;
  Button[Result].Texture.TexY2 := 1;
  Button[Result].SetSelect(false);

  Button[Result].Reflection := Reflection;

  // adds interaction
  AddInteraction(iButton, Result);
  Interaction := 0;
end;

procedure TMenu.ClearButtons;
begin
  Setlength(Button, 0);
end;

// Method to draw our TMenu and all his child buttons
function TMenu.DrawBG: boolean;
var
  PetX:   integer;
  PetY:   integer;
begin
//  glClearColor(1, 1, 1, 1);
//  glClear(GL_COLOR_BUFFER_BIT or GL_DEPTH_BUFFER_BIT);

  glMatrixMode(GL_PROJECTION);
    glLoadIdentity;
    glOrtho(0, RenderW, RenderH, 0, -1, 100);
  glMatrixMode(GL_MODELVIEW);

  BackImg.ColR := 1;
  BackImg.ColG := 1;
  BackImg.ColB := 1;
  BackImg.TexX1 := 0;
  BackImg.TexY1 := 0;
  BackImg.TexX2 := 1;
  BackImg.TexY2 := 1;
  if (BackImg.TexNum <> -1) then begin
    // draw texture with overlapping
    for PetY := 1 to BackH do
      for PetX := 1 to BackW do begin
        BackImg.X := (PetX-1)/BackW * 800; //640
        BackImg.Y := (PetY-1)/BackH * 600; //480
        DrawTexture(BackImg);
      end; // for PetX
  end; // if
end;

function TMenu.DrawFG: boolean;
var
  J:      Integer;
begin
  // We don't forget about newly implemented static for nice skin ...
  for J := 0 to Length(Static) - 1 do
    Static[J].Draw;

  // ... and slightly implemented menutext unit
  for J := 0 to Length(Text) - 1 do
    Text[J].Draw;

  // Second, we draw all of our buttons
  for J := 0 to Length(Button) - 1 do
    Button[J].Draw;

  // Third, we draw all of our selects
  for J := 0 to Length(Selects) - 1 do
    Selects[J].Draw(1);

  for J := 0 to Length(SelectsS) - 1 do
    SelectsS[J].Draw;

 // Third, we draw all our widgets
//  for J := 0 to Length(WidgetsSrc) - 1 do
//    SDL_BlitSurface(WidgetsSrc[J], nil, ParentBackBuf, WidgetsRect[J]);
  Result := True;
end;

function TMenu.Draw: boolean;
begin
  DrawBG;
  DrawFG;
  Result := True;
end;

{function TMenu.GetNextScreen(): PMenu;
begin
  Result := NextScreen;
end;}

{function TMenu.AddWidget(X, Y : UInt16; WidgetSrc : PSDL_Surface): Int16;
var
  WidgetNum : Int16;

begin
  If (Assigned(WidgetSrc)) Then
  begin
    WidgetNum := Length(WidgetsSrc);

    SetLength(WidgetsSrc, WidgetNum + 1);
    SetLength(WidgetsRect, WidgetNum + 1);

    WidgetsSrc[WidgetNum] := WidgetSrc;
    WidgetsRect[WidgetNum] := new(PSDL_Rect);
    WidgetsRect[WidgetNum]^.x := X;
    WidgetsRect[WidgetNum]^.y := Y;
    WidgetsRect[WidgetNum]^.w := WidgetSrc^.w;
    WidgetsRect[WidgetNum]^.h := WidgetSrc^.h;

    Result := WidgetNum;
  end
  else
    Result := -1;
end;}

{procedure TMenu.ClearWidgets(MinNumber : Int16);
var
  J : Int16;
begin
  For J := MinNumber to (Length(WidgetsSrc) - 1) do
  begin
    SDL_FreeSurface(WidgetsSrc[J]);
    dispose(WidgetsRect[J]);
  end;

  SetLength(WidgetsSrc, MinNumber);
  SetLength(WidgetsRect, MinNumber);
end;}

procedure TMenu.InteractNext;
var
  Num:    integer;
  Typ:    integer;
  Again:  boolean;
begin
  Again := true;

  // change interaction as long as it's needed
  while (Again = true) do begin
    Num := (Interaction + 1) Mod Length(Interactions);
    Interaction := Num;
    Again := false; // reset, default to accept changing interaction


    // checking newly interacted element
    Num := Interactions[Interaction].Num;
    Typ := Interactions[Interaction].Typ;
    case Typ of
    iButton:
      begin
        if Button[Num].Selectable = false then Again := True;
      end;
    end; // case
  end; // while
end;


procedure TMenu.InteractPrev;
var
  Num:    integer;
  Typ:    integer;
  Again:  boolean;
begin
  Again := true;

  // change interaction as long as it's needed
  while (Again = true) do begin
    Num := SelInteraction - 1;
    if Num = -1 then Num := High(Interactions);
    Interaction := Num;
    Again := false; // reset, default to accept changing interaction

    // checking newly interacted element
    Num := Interactions[Interaction].Num;
    Typ := Interactions[Interaction].Typ;
    case Typ of
    iButton:
      begin
        if Button[Num].Selectable = false then Again := True;
      end;
    end; // case
  end; // while

end;


procedure TMenu.InteractCustom(CustomSwitch: integer);
var
  Num:    integer;
  Typ:    integer;
  Again:  boolean;
begin
  if num<0 then begin
    CustomSwitch:= CustomSwitch*(-1);
    Again := true;
  // change interaction as long as it's needed
  while (Again = true) do begin
    Num := SelInteraction - CustomSwitch;
    if Num = -1 then Num := High(Interactions);
    Interaction := Num;
    Again := false; // reset, default to accept changing interaction

    // checking newly interacted element
    Num := Interactions[Interaction].Num;
    Typ := Interactions[Interaction].Typ;
    case Typ of
    iButton:
      begin
        if Button[Num].Selectable = false then Again := True;
      end;
    end; // case
  end; // while
  end
  else if num>0 then begin
    Again := true;
    // change interaction as long as it's needed
  while (Again = true) do begin
    Num := (Interaction + CustomSwitch) Mod Length(Interactions);
    Interaction := Num;
    Again := false; // reset, default to accept changing interaction


    // checking newly interacted element
    Num := Interactions[Interaction].Num;
    Typ := Interactions[Interaction].Typ;
    case Typ of
    iButton:
      begin
        if Button[Num].Selectable = false then Again := True;
      end;
    end; // case
  end; // while
    end
end;


procedure TMenu.FadeTo(Screen: PMenu);
begin
  Display.Fade := 0;
  Display.NextScreen := Screen;
end;

procedure TMenu.AddButtonText(AddX, AddY: real; AddText: string);
begin
  AddButtonText(AddX, AddY, 1, 1, 1, AddText);
end;

procedure TMenu.AddButtonText(AddX, AddY: real; ColR, ColG, ColB: real; AddText: string);
var
  Il:   integer;
begin
  with Button[High(Button)] do begin
    Il := Length(Text);
    SetLength(Text, Il+1);
    Text[Il] := TText.Create(X + AddX, Y + AddY, AddText);
    Text[Il].ColR := ColR;
    Text[Il].ColG := ColG;
    Text[Il].ColB := ColB;
    Text[Il].Int := 1;//0.5;
  end;
end;

procedure TMenu.AddButtonText(AddX, AddY: real; ColR, ColG, ColB: real; Font: integer; Size: integer; Align: integer; AddText: string);
var
  Il:   integer;
begin
  with Button[High(Button)] do begin
    Il := Length(Text);
    SetLength(Text, Il+1);
    Text[Il] := TText.Create(X + AddX, Y + AddY, AddText);
    Text[Il].ColR := ColR;
    Text[Il].ColG := ColG;
    Text[Il].ColB := ColB;
    Text[Il].Int := 1;//0.5;
    Text[Il].Style := Font;
    Text[Il].Size := Size;
    Text[Il].Align := Align;
  end;
end;

function TMenu.AddSelect(ThemeSelect: TThemeSelect; var Data: integer; Values: array of string): integer;
var
  SO:     integer;
begin
  Result := AddSelect(ThemeSelect.X, ThemeSelect.Y, ThemeSelect.W, ThemeSelect.H, ThemeSelect.SkipX,
    ThemeSelect.ColR, ThemeSelect.ColG, ThemeSelect.ColB, ThemeSelect.Int,
    ThemeSelect.DColR, ThemeSelect.DColG, ThemeSelect.DColB, ThemeSelect.DInt,
    ThemeSelect.TColR, ThemeSelect.TColG, ThemeSelect.TColB, ThemeSelect.TInt,
    ThemeSelect.TDColR, ThemeSelect.TDColG, ThemeSelect.TDColB, ThemeSelect.TDInt,
    ThemeSelect.SBGColR, ThemeSelect.SBGColG, ThemeSelect.SBGColB, ThemeSelect.SBGInt,
    ThemeSelect.SBGDColR, ThemeSelect.SBGDColG, ThemeSelect.SBGDColB, ThemeSelect.SBGDInt,
    ThemeSelect.STColR, ThemeSelect.STColG, ThemeSelect.STColB, ThemeSelect.STInt,
    ThemeSelect.STDColR, ThemeSelect.STDColG, ThemeSelect.STDColB, ThemeSelect.STDInt,
    Skin.GetTextureFileName(ThemeSelect.Tex), 'Font Black',
    Skin.GetTextureFileName(ThemeSelect.TexSBG), 'Font Black',
    ThemeSelect.Text, Data);
  for SO := 0 to High(Values) do
    AddSelectOption(ThemeSelect.X + ThemeSelect.W + ThemeSelect.SkipX + SO * 100 + 20, ThemeSelect.Y + 20, Values[SO]);
end;

function TMenu.AddSelect(X, Y, W, H, SkipX, ColR, ColG, ColB, Int, DColR, DColG, DColB, DInt,
  TColR, TColG, TColB, TInt, TDColR, TDColG, TDColB, TDInt,
  SBGColR, SBGColG, SBGColB, SBGInt, SBGDColR, SBGDColG, SBGDColB, SBGDInt,
  STColR, STColG, STColB, STInt, STDColR, STDColG, STDColB, STDInt: real;
  Name, Typ: String; SBGName, SBGTyp: String;
  Caption: string; var Data: integer): integer;
var
  S:    integer;
begin
  S := Length(Selects);
  SetLength(Selects, S + 1);
  Selects[S] := TSelect.Create;

  Selects[S].Texture := Texture.GetTexture(Name, Typ);
  Selects[S].X := X;
  Selects[S].Y := Y;
  Selects[S].W := W;
  Selects[S].H := H;
  Selects[S].ColR := ColR;
  Selects[S].ColG := ColG;
  Selects[S].ColB := ColB;
  Selects[S].Int := Int;
  Selects[S].DColR := DColR;
  Selects[S].DColG := DColG;
  Selects[S].DColB := DColB;
  Selects[S].DInt := DInt;

  Selects[S].TextureSBG := Texture.GetTexture(SBGName, SBGTyp);
  Selects[S].TextureSBG.X := X + W + SkipX;
  Selects[S].TextureSBG.Y := Y;
  Selects[S].TextureSBG.W := 450;
  Selects[S].TextureSBG.H := H;
  Selects[S].SBGColR := SBGColR;
  Selects[S].SBGColG := SBGColG;
  Selects[S].SBGColB := SBGColB;
  Selects[S].SBGInt := SBGInt;
  Selects[S].SBGDColR := SBGDColR;
  Selects[S].SBGDColG := SBGDColG;
  Selects[S].SBGDColB := SBGDColB;
  Selects[S].SBGDInt := SBGDInt;

  Selects[S].Text.X := X + 20;
  Selects[S].Text.Y := Y + 20;
  Selects[S].Text.Text := Caption;
  Selects[S].Text.Size := 10;
  Selects[S].Text.Visible := true;
  Selects[S].TColR := TColR;
  Selects[S].TColG := TColG;
  Selects[S].TColB := TColB;
  Selects[S].TInt := TInt;
  Selects[S].TDColR := TDColR;
  Selects[S].TDColG := TDColG;
  Selects[S].TDColB := TDColB;
  Selects[S].TDInt := TDInt;

  Selects[S].STColR := STColR;
  Selects[S].STColG := STColG;
  Selects[S].STColB := STColB;
  Selects[S].STInt := STInt;
  Selects[S].STDColR := STDColR;
  Selects[S].STDColG := STDColG;
  Selects[S].STDColB := STDColB;
  Selects[S].STDInt := STDInt;

  // new
  Selects[S].Texture.TexX1 := 0;
  Selects[S].Texture.TexY1 := 0;
  Selects[S].Texture.TexX2 := 1;
  Selects[S].Texture.TexY2 := 1;
  Selects[S].TextureSBG.TexX1 := 0;
  Selects[S].TextureSBG.TexY1 := 0;
  Selects[S].TextureSBG.TexX2 := 1;
  Selects[S].TextureSBG.TexY2 := 1;

  // Sets Data to copy the value of selectops to global value;
  Selects[S].PData := @Data;

  // Sets default value of selectopt from Data;
  Selects[S].SelectedOption := Data;

  // Disables default selection
  Selects[S].SetSelect(false);

  // adds interaction
  AddInteraction(iSelect, S);
end;

procedure TMenu.AddSelectOption(AddX, AddY: real; AddText: string);
begin
  AddSelectOption (High(Selects), AddX, AddY, AddText);
end;

procedure TMenu.AddSelectOption(SelectNo: Cardinal; AddX, AddY: real; AddText: string);
var
  SO:     integer;
begin
  SO := Length(Selects[SelectNo].TextOpt);
  SetLength(Selects[SelectNo].TextOpt, SO + 1);

  Selects[SelectNo].TextOpt[SO] := TText.Create;

  Selects[SelectNo].TextOpt[SO].X := AddX;
  Selects[SelectNo].TextOpt[SO].Y := AddY;
  Selects[SelectNo].TextOpt[SO].Text := AddText;
  Selects[SelectNo].TextOpt[SO].Size := 10;
  Selects[SelectNo].TextOpt[SO].ColR := Selects[SelectNo].STDColR;
  Selects[SelectNo].TextOpt[SO].ColG := Selects[SelectNo].STDColG;
  Selects[SelectNo].TextOpt[SO].ColB := Selects[SelectNo].STDColB;
  Selects[SelectNo].TextOpt[SO].Int := Selects[SelectNo].STDInt;
  Selects[SelectNo].TextOpt[SO].Visible := true;

  if SO = Selects[SelectNo].PData^ then Selects[SelectNo].SelectedOption := SO;
end;

procedure TMenu.UpdateSelectOptions(ThemeSelect: TThemeSelect; SelectNum: integer; Values: array of string; var Data: integer);
var
  SO:   integer;
begin
  SetLength(Selects[SelectNum].TextOpt, 0);
  for SO := 0 to High(Values) do
    AddSelectOption(SelectNum, ThemeSelect.X + ThemeSelect.W + ThemeSelect.SkipX + SO * 100 + 20, ThemeSelect.Y + 20, Values[SO]);
end;

function TMenu.AddSelectSlide(ThemeSelectS: TThemeSelectSlide; var Data: integer; Values: array of string): integer;
var
  SO:     integer;
begin
  Result := AddSelectSlide(ThemeSelectS.X, ThemeSelectS.Y, ThemeSelectS.W, ThemeSelectS.H, ThemeSelectS.SkipX, ThemeSelectS.SBGW,
    ThemeSelectS.ColR, ThemeSelectS.ColG, ThemeSelectS.ColB, ThemeSelectS.Int,
    ThemeSelectS.DColR, ThemeSelectS.DColG, ThemeSelectS.DColB, ThemeSelectS.DInt,
    ThemeSelectS.TColR, ThemeSelectS.TColG, ThemeSelectS.TColB, ThemeSelectS.TInt,
    ThemeSelectS.TDColR, ThemeSelectS.TDColG, ThemeSelectS.TDColB, ThemeSelectS.TDInt,
    ThemeSelectS.SBGColR, ThemeSelectS.SBGColG, ThemeSelectS.SBGColB, ThemeSelectS.SBGInt,
    ThemeSelectS.SBGDColR, ThemeSelectS.SBGDColG, ThemeSelectS.SBGDColB, ThemeSelectS.SBGDInt,
    ThemeSelectS.STColR, ThemeSelectS.STColG, ThemeSelectS.STColB, ThemeSelectS.STInt,
    ThemeSelectS.STDColR, ThemeSelectS.STDColG, ThemeSelectS.STDColB, ThemeSelectS.STDInt,
    Skin.GetTextureFileName(ThemeSelectS.Tex), 'Font Black',
    Skin.GetTextureFileName(ThemeSelectS.TexSBG), 'Font Black',
    ThemeSelectS.Text, Data);
  for SO := 0 to High(Values) do
    AddSelectSlideOption(Values[SO]);

  //Generate Lines
  SelectsS[High(SelectsS)].GenLines;

  SelectsS[High(SelectsS)].SelectedOption := SelectsS[High(SelectsS)].SelectOptInt; // refresh
end;

function TMenu.AddSelectSlide(X, Y, W, H, SkipX, SBGW, ColR, ColG, ColB, Int, DColR, DColG, DColB, DInt,
  TColR, TColG, TColB, TInt, TDColR, TDColG, TDColB, TDInt,
  SBGColR, SBGColG, SBGColB, SBGInt, SBGDColR, SBGDColG, SBGDColB, SBGDInt,
  STColR, STColG, STColB, STInt, STDColR, STDColG, STDColB, STDInt: real;
  Name, Typ: String; SBGName, SBGTyp: String;
  Caption: string; var Data: integer): integer;
var
  S:    integer;
  I:    integer;
begin
  S := Length(SelectsS);
  SetLength(SelectsS, S + 1);
  SelectsS[S] := TSelectSlide.Create;

  SelectsS[S].Texture := Texture.GetTexture(Name, Typ);
  SelectsS[S].X := X;
  SelectsS[S].Y := Y;
  SelectsS[S].W := W;
  SelectsS[S].H := H;

  SelectsS[S].ColR := ColR;
  SelectsS[S].ColG := ColG;
  SelectsS[S].ColB := ColB;
  SelectsS[S].Int := Int;
  SelectsS[S].DColR := DColR;
  SelectsS[S].DColG := DColG;
  SelectsS[S].DColB := DColB;
  SelectsS[S].DInt := DInt;

  SelectsS[S].TextureSBG := Texture.GetTexture(SBGName, SBGTyp);
  SelectsS[S].TextureSBG.X := X + W + SkipX;
  SelectsS[S].TextureSBG.Y := Y;
  //SelectsS[S].TextureSBG.W := 450;
  SelectsS[S].SBGW := SBGW;
  SelectsS[S].TextureSBG.H := H;
  SelectsS[S].SBGColR := SBGColR;
  SelectsS[S].SBGColG := SBGColG;
  SelectsS[S].SBGColB := SBGColB;
  SelectsS[S].SBGInt := SBGInt;
  SelectsS[S].SBGDColR := SBGDColR;
  SelectsS[S].SBGDColG := SBGDColG;
  SelectsS[S].SBGDColB := SBGDColB;
  SelectsS[S].SBGDInt := SBGDInt;

  SelectsS[S].Text.X := X + 20;
  SelectsS[S].Text.Y := Y + 20;
  SelectsS[S].Text.Text := Caption;
  SelectsS[S].Text.Size := 10;
  SelectsS[S].Text.Visible := true;
  SelectsS[S].TColR := TColR;
  SelectsS[S].TColG := TColG;
  SelectsS[S].TColB := TColB;
  SelectsS[S].TInt := TInt;
  SelectsS[S].TDColR := TDColR;
  SelectsS[S].TDColG := TDColG;
  SelectsS[S].TDColB := TDColB;
  SelectsS[S].TDInt := TDInt;

  SelectsS[S].STColR := STColR;
  SelectsS[S].STColG := STColG;
  SelectsS[S].STColB := STColB;
  SelectsS[S].STInt := STInt;
  SelectsS[S].STDColR := STDColR;
  SelectsS[S].STDColG := STDColG;
  SelectsS[S].STDColB := STDColB;
  SelectsS[S].STDInt := STDInt;

  // new
  SelectsS[S].Texture.TexX1 := 0;
  SelectsS[S].Texture.TexY1 := 0;
  SelectsS[S].Texture.TexX2 := 1;
  SelectsS[S].Texture.TexY2 := 1;
  SelectsS[S].TextureSBG.TexX1 := 0;
  SelectsS[S].TextureSBG.TexY1 := 0;
  SelectsS[S].TextureSBG.TexX2 := 1;
  SelectsS[S].TextureSBG.TexY2 := 1;

  // Sets Data to copy the value of selectops to global value;
  SelectsS[S].PData := @Data;
  // Configures Select options
  {//SelectsS[S].TextOpt[0].Text := IntToStr(I+1);
  SelectsS[S].TextOpt[0].Size := 10;
  SelectsS[S].TextOpt[0].Align := 1;

  SelectsS[S].TextOpt[0].ColR := SelectsS[S].STDColR;
  SelectsS[S].TextOpt[0].ColG := SelectsS[S].STDColG;
  SelectsS[S].TextOpt[0].ColB := SelectsS[S].STDColB;
  SelectsS[S].TextOpt[0].Int := SelectsS[S].STDInt;
  SelectsS[S].TextOpt[0].Visible := true; }

  // Sets default value of selectopt from Data;
  SelectsS[S].SelectedOption := Data;

  // Disables default selection
  SelectsS[S].SetSelect(false);

  {// Configures 3 select options
  for I := 0 to 2 do begin
    SelectsS[S].TextOpt[I].X := SelectsS[S].TextureSBG.X + 20 + (50 + 20) + (150 - 20) * I;
    SelectsS[S].TextOpt[I].Y := SelectsS[S].TextureSBG.Y + 20;
    SelectsS[S].TextOpt[I].Text := IntToStr(I+1);
    SelectsS[S].TextOpt[I].Size := 10;
    SelectsS[S].TextOpt[I].Align := 1;


    SelectsS[S].TextOpt[I].ColR := SelectsS[S].STDColR;
    SelectsS[S].TextOpt[I].ColG := SelectsS[S].STDColG;
    SelectsS[S].TextOpt[I].ColB := SelectsS[S].STDColB;
    SelectsS[S].TextOpt[I].Int := SelectsS[S].STDInt;
    SelectsS[S].TextOpt[I].Visible := true;
  end;}


  // adds interaction
  AddInteraction(iSelectS, S);
  Result := S;
end;

procedure TMenu.AddSelectSlideOption(AddText: string);
begin
  AddSelectSlideOption(High(SelectsS), AddText);
end;

procedure TMenu.AddSelectSlideOption(SelectNo: Cardinal; AddText: string);
var
  SO:     integer;
begin
  SO := Length(SelectsS[SelectNo].TextOptT);
  
  SetLength(SelectsS[SelectNo].TextOptT, SO + 1);
  SelectsS[SelectNo].TextOptT[SO] := AddText;

  //SelectsS[S].SelectedOption := SelectsS[S].SelectOptInt; // refresh

  //if SO = Selects[S].PData^ then Selects[S].SelectedOption := SO;
end;

procedure TMenu.UpdateSelectSlideOptions(ThemeSelectSlide: TThemeSelectSlide; SelectNum: integer; Values: array of string; var Data: integer);
var
  SO:   integer;
begin
  SetLength(SelectsS[SelectNum].TextOptT, 0);
  for SO := 0 to High(Values) do
    AddSelectSlideOption(SelectNum, Values[SO]);

  SelectsS[SelectNum].GenLines;

//  SelectsS[SelectNum].SelectedOption := SelectsS[SelectNum].SelectOptInt; // refresh
//  SelectS[SelectNum].SetSelectOpt(Data);
//  SelectS[SelectNum].SelectedOption := 0;//Data;

//  Log.LogError(IntToStr(High(SelectsS[SelectNum].TextOptT)));
//  if 0 <= High(SelectsS[SelectNum].TextOptT) then

  SelectsS[SelectNum].PData := @Data;
  SelectsS[SelectNum].SelectedOption := Data;
end;

function TMenu.InRegion(X1, Y1, X2, Y2, X, Y: real): Boolean;
begin
  Result := false;
  X1 := X1 * RenderW/640;
  X2 := X2 * RenderW/640;
  Y1 := Y1 * RenderH/480;
  Y2 := Y2 * RenderH/480;
  if (X >= X1) and (X <= X2) and (Y >= Y1) and (Y <= Y2) then
    Result := true;
end;

function TMenu.InStaticRegion(StaticNr: integer; X, Y: integer): Boolean;
begin
  Result := InRegion(Static[StaticNr].Texture.X,
    Static[StaticNr].Texture.Y,
    Static[StaticNr].Texture.X + Static[StaticNr].Texture.W - 1,
    Static[StaticNr].Texture.Y + Static[StaticNr].Texture.H - 1,
    X, Y);
end;

procedure TMenu.InteractInc;
var
  Num:    integer;
  Value:  integer;
begin
  case Interactions[Interaction].Typ of
    iSelect:  begin
        Num := Interactions[Interaction].Num;
        Value := Selects[Num].SelectedOption;
        Value := (Value + 1) Mod (Length(Selects[Num].TextOpt));
        Selects[Num].SelectedOption := Value;
      end;
    iSelectS: begin
        Num := Interactions[Interaction].Num;
        Value := SelectsS[Num].SelectedOption;
//        Value := (Value + 1) Mod (Length(SelectsS[Num].TextOptT));

        // limit
        Value := Value + 1;
        if Value <= High(SelectsS[Num].TextOptT) then
          SelectsS[Num].SelectedOption := Value;
      end;
  end;
end;

procedure TMenu.InteractDec;
var
  Num:    integer;
  Value:  integer;
begin
  case Interactions[Interaction].Typ of
    iSelect:  begin
        Num := Interactions[Interaction].Num;
        Value := Selects[Num].SelectedOption;
        Value := Value - 1;
        if Value = -1 then
          Value := High(Selects[Num].TextOpt);
        Selects[Num].SelectedOption := Value;
      end;
    iSelectS: begin
        Num := Interactions[Interaction].Num;
        Value := SelectsS[Num].SelectedOption;
        Value := Value - 1;
//        if Value = -1 then
//          Value := High(SelectsS[Num].TextOptT);

        if Value >= 0 then
          SelectsS[Num].SelectedOption := Value;
      end;
  end
end;

procedure TMenu.AddBox(X, Y, W, H: real);
begin
  AddStatic(X,   Y,   W,   H,   0, 0, 0, Skin.GetTextureFileName('Bar'), 'JPG', 'Font Black');
  AddStatic(X+2, Y+2, W-4, H-4, 1, 1, 1, Skin.GetTextureFileName('Bar'), 'JPG', 'Font Black');
end;

procedure TMenu.onShow;
begin
// nothing
//  beep;
end;

procedure TMenu.onShowFinish;
begin
// nothing
//  beep;
end;

procedure TMenu.onHide;
begin
// nothing
//  beep;
end;

function TMenu.ParseInput(PressedKey: Cardinal; ScanCode: byte; PressedDown: Boolean): Boolean;
begin
// nothing
//  Beep;
  Result := true;
end;

procedure TMenu.SetAnimationProgress(Progress: real);
begin
// nothing
//beep;
end;

end.