unit DrawScrn;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  DXDraws, DXClass, DirectX, IntroScn, Actor, cliUtil, clFunc,
  HUtil32;


const
   MAXSYSLINE = 8;

   BOTTOMBOARD = 1;
   VIEWCHATLINE = 9;
   AREASTATEICONBASE = 150;
   HEALTHBAR_BLACK = 0;
   HEALTHBAR_RED = 1;


type
   TDrawScreen = class
   private
      m_dwFrameTime       :LongWord;
      m_dwFrameCount      :LongWord;
      m_dwDrawFrameCount  :LongWord;
      m_SysMsgList        :TStringList;
   public
      CurrentScene: TScene;
      ChatStrs: TStringList;
      ChatBks: TList;
      ChatBoardTop: integer;

      HintList: TStringList;
      HintX, HintY, HintWidth, HintHeight: integer;
      HintUp: Boolean;
      HintColor: TColor;

      constructor Create;
      destructor Destroy; override;
      procedure KeyPress (var Key: Char);
      procedure KeyDown (var Key: Word; Shift: TShiftState);
      procedure MouseMove (Shift: TShiftState; X, Y: Integer);
      procedure MouseDown (Button: TMouseButton; Shift: TShiftState; X, Y: Integer);
      procedure Initialize;
      procedure Finalize;
      procedure ChangeScene (scenetype: TSceneType);
      procedure DrawScreen (MSurface: TDirectDrawSurface);
      procedure DrawScreenTop (MSurface: TDirectDrawSurface);
      procedure AddSysMsg (msg: string);
      procedure AddChatBoardString (str: string; fcolor, bcolor: integer);
      procedure ClearChatBoard;

      procedure ShowHint (x, y: integer; str: string; color: TColor; drawup: Boolean);
      procedure ClearHint;
      procedure DrawHint (MSurface: TDirectDrawSurface);
   end;


implementation

uses
   ClMain, MShare, Share;
   

constructor TDrawScreen.Create;
var
   i: integer;
begin
   CurrentScene := nil;
   m_dwFrameTime := GetTickCount;
   m_dwFrameCount := 0;
   m_SysMsgList := TStringList.Create;
   ChatStrs := TStringList.Create;
   ChatBks := TList.Create;
   ChatBoardTop := 0;

   HintList := TStringList.Create;

end;

destructor TDrawScreen.Destroy;
begin
   m_SysMsgList.Free;
   ChatStrs.Free;
   ChatBks.Free;
   HintList.Free;
   inherited Destroy;
end;

procedure TDrawScreen.Initialize;
begin
end;

procedure TDrawScreen.Finalize;
begin
end;

procedure TDrawScreen.KeyPress (var Key: Char);
begin
   if CurrentScene <> nil then
      CurrentScene.KeyPress (Key);
end;

procedure TDrawScreen.KeyDown (var Key: Word; Shift: TShiftState);
begin
   if CurrentScene <> nil then
      CurrentScene.KeyDown (Key, Shift);
end;

procedure TDrawScreen.MouseMove (Shift: TShiftState; X, Y: Integer);
begin
   if CurrentScene <> nil then
      CurrentScene.MouseMove (Shift, X, Y);
end;

procedure TDrawScreen.MouseDown (Button: TMouseButton; Shift: TShiftState; X, Y: Integer);
begin
   if CurrentScene <> nil then
      CurrentScene.MouseDown (Button, Shift, X, Y);
end;

procedure TDrawScreen.ChangeScene (scenetype: TSceneType);
begin
   if CurrentScene <> nil then
      CurrentScene.CloseScene;
   case scenetype of
      stIntro:  CurrentScene := IntroScene;
      stLogin:  CurrentScene := LoginScene;
      stSelectCountry:  ;
      stSelectChr: CurrentScene := SelectChrScene;
      stNewChr:     ;
      stLoading:    ;
      stLoginNotice: CurrentScene := LoginNoticeScene;
      stPlayGame: CurrentScene := PlayScene;
   end;
   if CurrentScene <> nil then
      CurrentScene.OpenScene;
end;

procedure TDrawScreen.AddSysMsg (msg: string);
begin
   if m_SysMsgList.Count >= 10 then m_SysMsgList.Delete (0);
   m_SysMsgList.AddObject (msg, TObject(GetTickCount));
end;

procedure TDrawScreen.AddChatBoardString (str: string; fcolor, bcolor: integer);
var
   i, len, aline: integer;
   dline, temp: string;
const
   BOXWIDTH = (SCREENWIDTH div 2 - 214) * 2{374}; //41 聊天框文字寬度
begin
   len := Length (str);
   temp := '';
   i := 1;
   while TRUE do begin
      if i > len then break;
      if byte (str[i]) >= 128 then begin
         temp := temp + str[i];
         Inc (i);
         if i <= len then temp := temp + str[i]
         else break;
      end else
         temp := temp + str[i];

      aline := FrmMain.Canvas.TextWidth (temp);
      if aline > BOXWIDTH then begin
         ChatStrs.AddObject (temp, TObject(fcolor));
         ChatBks.Add (Pointer(bcolor));
         str := Copy (str, i+1, Len-i);
         temp := '';
         break;
      end;
      Inc (i);
   end;
   if temp <> '' then begin
      ChatStrs.AddObject (temp, TObject(fcolor));
      ChatBks.Add (Pointer(bcolor));
      str := '';
   end;
   if ChatStrs.Count > 200 then begin
      ChatStrs.Delete (0);
      ChatBks.Delete (0);
      if ChatStrs.Count - ChatBoardTop < VIEWCHATLINE then Dec(ChatBoardTop);
   end else if (ChatStrs.Count-ChatBoardTop) > VIEWCHATLINE then begin
      Inc (ChatBoardTop);
   end;

   if str <> '' then
      AddChatBoardString (' ' + str, fcolor, bcolor);

end;

procedure TDrawScreen.ShowHint (x, y: integer; str: string; color: TColor; drawup: Boolean);
var
   data: string;
   w, h: integer;
begin
   ClearHint;
   HintX := x;
   HintY := y;
   HintWidth := 0;
   HintHeight := 0;
   HintUp := drawup;
   HintColor := color;
   while TRUE do begin
      if str = '' then break;
      str := GetValidStr3 (str, data, ['\']);
      w := FrmMain.Canvas.TextWidth (data) + 4{咯歸} * 2;
      if w > HintWidth then HintWidth := w;
      if data <> '' then
         HintList.Add (data)
   end;
   HintHeight := (FrmMain.Canvas.TextHeight('A') + 1) * HintList.Count + 3{咯歸} * 2;
   if HintUp then
      HintY := HintY - HintHeight;
end;

procedure TDrawScreen.ClearHint;
begin
   HintList.Clear;
end;

procedure TDrawScreen.ClearChatBoard;
begin
   m_SysMsgList.Clear;
   ChatStrs.Clear;
   ChatBks.Clear;
   ChatBoardTop := 0;
end;


procedure TDrawScreen.DrawScreen (MSurface: TDirectDrawSurface);
   procedure NameTextOut (surface: TDirectDrawSurface; x, y, fcolor, bcolor: integer; namestr: string);
   var
      i, row: integer;
      nstr: string;
   begin
      row := 0;
      for i:=0 to 10 do begin
         if namestr = '' then break;
         namestr := GetValidStr3 (namestr, nstr, ['\']);
         BoldTextOut (surface,
                      x - surface.Canvas.TextWidth(nstr) div 2,
                      y + row * 12,
                      fcolor, bcolor, nstr);
         Inc (row);
      end;
   end;
var
   i, k, line, sx, sy, fcolor, bcolor: integer;
   actor: TActor;
   str, uname: string;
   dsurface: TDirectDrawSurface;
   d: TDirectDrawSurface;
   rc: TRect;
   infoMsg :String;
begin
   MSurface.Fill(0);