unit ClFunc;
//輔助函數(shù)庫
interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  DXDraws, DirectX, DXClass, Grobal2, ScktComp, ExtCtrls, HUtil32, EdCode;


const
   DR_0      = 0;
   DR_1      = 1;
   DR_2      = 2;
   DR_3      = 3;
   DR_4      = 4;
   DR_5      = 5;
   DR_6      = 6;
   DR_7      = 7;
   DR_8      = 8;
   DR_9      = 9;
   DR_10      = 10;
   DR_11      = 11;
   DR_12      = 12;
   DR_13      = 13;
   DR_14      = 14;
   DR_15      = 15;

type
   TDynamicObject = record
      X: integer;           //位置
      Y: integer;
      px: integer;          //shift x ,y
      py: integer;
      DSurface: TDirectDrawSurface;
   end;
   PTDynamicObject = ^TDynamicObject;
var
   DropItems: TList;  //lsit of TClientItem

function  fmStr (str: string; len: integer): string;
function  GetGoldStr (gold: integer): string;
procedure SaveBags (flname: string; pbuf: Pbyte);
procedure Loadbags (flname: string; pbuf: Pbyte);
procedure ClearBag;
function  AddItemBag (cu: TClientItem): Boolean;
function  UpdateItemBag (cu: TClientItem): Boolean;
function  DelItemBag (iname: string; iindex: integer): Boolean;
procedure ArrangeItemBag;
procedure AddDropItem (ci: TClientItem);
function  GetDropItem (iname: string; MakeIndex: integer): PTClientItem;
procedure DelDropItem (iname: string; MakeIndex: integer);
procedure AddDealItem (ci: TClientItem);
procedure DelDealItem (ci: TClientItem);
procedure MoveDealItemToBag;
procedure AddDealRemoteItem (ci: TClientItem);
procedure DelDealRemoteItem (ci: TClientItem);
function  GetDistance (sx, sy, dx, dy: integer): integer;
procedure GetNextPosXY (dir: byte; var x, y:Integer);
procedure GetNextRunXY (dir: byte; var x, y:Integer);
function  GetNextDirection (sx, sy, dx, dy: Integer): byte;
function  GetBack (dir: integer): integer;
procedure GetBackPosition (sx, sy, dir: integer; var newx, newy: integer);
procedure GetFrontPosition (sx, sy, dir: integer; var newx, newy: integer);
function  GetFlyDirection (sx, sy, ttx, tty: integer): Integer;
function  GetFlyDirection16 (sx, sy, ttx, tty: integer): Integer;
function  PrivDir (ndir: integer): integer;
function  NextDir (ndir: integer): integer;
procedure BoldTextOut (surface: TDirectDrawSurface; x, y, fcolor, bcolor: integer; str: string);
function  GetTakeOnPosition (smode: integer): integer;
function  IsKeyPressed (key: byte): Boolean;

procedure AddChangeFace (recogid: integer);
procedure DelChangeFace (recogid: integer);
function  IsChangingFace (recogid: integer): Boolean;

implementation

uses
   clMain;

//格式化字符串為指定長度（后面添空格）
function fmStr (str: string; len: integer): string;
var i: integer;
begin
try
   Result := str + ' ';
   for i:=1 to len - Length(str)-1 do
      Result := Result + ' ';
except
   Result := str + ' ';
end;
end;

//整數(shù)轉(zhuǎn)換為千位帶逗號的字符串，例如1234567轉(zhuǎn)換為“1,234,567”
//這里用于顯示金錢數(shù)量
function  GetGoldStr (gold: integer): string;
var
   i, n: integer;
   str: string;
begin
   str := IntToStr (gold);
   n := 0;
   Result := '';
   for i:=Length(str) downto 1 do begin
      if n = 3 then begin
         Result := str[i] + ',' + Result;
         n := 1;
      end else begin
         Result := str[i] + Result;
         Inc(n);
      end;
   end;
end;

//保存裝備物品到文件
procedure SaveBags (flname: string; pbuf: Pbyte);
var
   fhandle: integer;
begin
   if FileExists (flname) then
      fhandle := FileOpen (flname, fmOpenWrite or fmShareDenyNone)
   else fhandle := FileCreate (flname);
   if fhandle > 0 then begin
      FileWrite (fhandle, pbuf^, sizeof(TClientItem) * MAXBAGITEMCL);
      FileClose (fhandle);
   end;
end;

//裝載裝備物品
procedure Loadbags (flname: string; pbuf: Pbyte);
var
   fhandle: integer;
begin
   if FileExists (flname) then begin
      fhandle := FileOpen (flname, fmOpenRead or fmShareDenyNone);
      if fhandle > 0 then begin
         FileRead (fhandle, pbuf^, sizeof(TClientItem) * MAXBAGITEMCL);
         FileClose (fhandle);
      end;
   end;
end;

//清除物品
procedure ClearBag;
var
   i: integer;
begin
   for i:=0 to MAXBAGITEMCL-1 do
      ItemArr[i].S.Name := '';
end;
//添加物品
function  AddItemBag (cu: TClientItem): Boolean;
var
   i: integer;
begin
   Result := FALSE;
   //檢查要添加的物品是否已經(jīng)存在
   for i:=0 to MAXBAGITEMCL-1 do begin
      if (ItemArr[i].MakeIndex = cu.MakeIndex) and (ItemArr[i].S.Name = cu.S.Name) then begin
         exit;
      end;
   end;

   if cu.S.Name = '' then exit;
   if cu.S.StdMode <= 3 then begin               //可以使用的物品,首先放在快捷物品欄
      for i:=0 to 5 do                           //前面6格顯示在快捷物品欄上
         if ItemArr[i].S.Name = '' then begin    //找一個空檔放下
            ItemArr[i] := cu;
            Result := TRUE;
            exit;
         end;
   end;
   for i:=6 to MAXBAGITEMCL-1 do begin
      if ItemArr[i].S.Name = '' then begin
         ItemArr[i] := cu;
         Result := TRUE;
         break;
      end;
   end;
   ArrangeItembag;
end;

//用當(dāng)前的物品屬性替代已經(jīng)存在的該物品屬性
function  UpdateItemBag (cu: TClientItem): Boolean;
var
   i: integer;
begin
   Result := FALSE;
   for i:=MAXBAGITEMCL-1 downto 0 do begin
      if (ItemArr[i].S.Name = cu.S.Name) and (ItemArr[i].MakeIndex = cu.MakeIndex) then begin
         ItemArr[i] := cu;
         Result := TRUE;
         break;
      end;
   end;
end;

//刪除指定的物品
function  DelItemBag (iname: string; iindex: integer): Boolean;
var
   i: integer;
begin
   Result := FALSE;
   for i:=MAXBAGITEMCL-1 downto 0 do begin
      if (ItemArr[i].S.Name = iname) and (ItemArr[i].MakeIndex = iindex) then begin
         FillChar (ItemArr[i], sizeof(TClientItem), #0);
         Result := TRUE;
         break;
      end;
   end;
   ArrangeItembag;
end;
//整理物品包
procedure ArrangeItemBag;
var
   i, k: integer;
begin
   //吝汗等 酒撈袍撈 樂欄擱 絕矩促.
   for i:=0 to MAXBAGITEMCL-1 do begin
      if ItemArr[i].S.Name <> '' then begin
         for k:=i+1 to MAXBAGITEMCL-1 do begin  //清除相同的物品
            if (ItemArr[i].S.Name = ItemArr[k].S.Name) and (ItemArr[i].MakeIndex = ItemArr[k].MakeIndex) then begin
               FillChar (ItemArr[k], sizeof(TClientItem), #0);
            end;
         end;
         //若有移動的物品
         if (ItemArr[i].S.Name = MovingItem.Item.S.Name) and (ItemArr[i].MakeIndex = MovingItem.Item.MakeIndex) then begin
            MovingItem.Index := 0;
            MovingItem.Item.S.Name := '';
         end;
      end;
   end;

   //6樣特殊物品欄
   //啊規(guī)狼 救焊撈綽 何盒俊 樂欄擱 纏絹 棵赴促.
   for i:=46 to MAXBAGITEMCL-1 do begin
      if ItemArr[i].S.Name <> '' then begin
         for k:=6 to 45 do begin
            if ItemArr[k].S.Name = '' then begin
               ItemArr[k] := ItemArr[i];
               ItemArr[i].S.Name := '';
               break;
            end;
         end;
      end;
   end;
end;

{----------------------------------------------------------}
//添加跌落物品
procedure AddDropItem (ci: TClientItem);
var
   pc: PTClientItem;
begin
   new (pc);
   pc^ := ci;
   DropItems.Add (pc);
end;
//獲取跌落物品
function  GetDropItem (iname: string; MakeIndex: integer): PTClientItem;
var
   i: integer;
begin
   Result := nil;
   for i:=0 to DropItems.Count-1 do begin
      if (PTClientItem(DropItems[i]).S.Name = iname) and (PTClientItem(DropItems[i]).MakeIndex = MakeIndex) then begin
         Result := PTClientItem(DropItems[i]);
         break;
      end;
   end;
end;
//刪除跌落物品
procedure DelDropItem (iname: string; MakeIndex: integer);
var
   i: integer;
begin
   for i:=0 to DropItems.Count-1 do begin
      if (PTClientItem(DropItems[i]).S.Name = iname) and (PTClientItem(DropItems[i]).MakeIndex = MakeIndex) then begin
         Dispose (PTClientItem(DropItems[i]));
         DropItems.Delete (i);
         break;
      end;
   end;
end;

{----------------------------------------------------------}

procedure AddDealItem (ci: TClientItem);
var
   i: integer;
begin
   for i:=0 to 10-1 do begin
      if DealItems[i].S.Name = '' then begin
         DealItems[i] := ci;
         break;
      end;
   end;
end;

procedure DelDealItem (ci: TClientItem);
var
   i: integer;
begin
   for i:=0 to 10-1 do begin
      if (DealItems[i].S.Name = ci.S.Name) and (DealItems[i].MakeIndex = ci.MakeIndex) then begin
         FillChar (DealItems[i], sizeof(TClientItem), #0);
         break;
      end;
   end;
end;

procedure MoveDealItemToBag;
var
   i: integer;
begin
   for i:=0 to 10-1 do begin
      if DealItems[i].S.Name <> '' then
         AddItemBag (DealItems[i]);
   end;
   FillChar (DealItems, sizeof(TClientItem)*10, #0);
end;

procedure AddDealRemoteItem (ci: TClientItem);
var
   i: integer;
begin
   for i:=0 to 20-1 do begin
      if DealRemoteItems[i].S.Name = '' then begin
         DealRemoteItems[i] := ci;
         break;
      end;
   end;
end;

procedure DelDealRemoteItem (ci: TClientItem);
var
   i: integer;