//---------------------------------------------------------------------------
#include <vcl.h>
#pragma hdrstop


#include "MainForm1.h"
#include "EditForm2.h"
#include "InfoForm3.h"
#include "ChessErr.h"
#include "InputPlyDepth.h"
#include "InputSecPerMove.h"
#include "InputMinPerGame.h"
#include "EndGameDlog.h"
#include "AboutDlog.h"
#include "ColorDlog.h"
#include "PieceValueDlog.h"
#include <string.h>
#include <stdio.h>
#include <stdlib.h>

#include "CDefines.h"
#include "Global.h"


#undef MAXPATH
#define MAXPATH  160

/*
 *  全局變量
 */

BYTE ColorSquareColors[3] = { 0, 128, 0 };   /* 綠色 */

bool ShowBestPath = true;
HBRUSH hColorBrush;
HBITMAP PieceBmpArray[7][2];
HBITMAP MaskArray[7];
COLORTYPE ComputerColor;
short LINESIZE;
short CHARSIZE;
bool Editing;
int BORDERSIZE;
bool SoundOn;

//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"

/*
在 #pragma資源聲明里，加入包含定制光標(biāo)的資源文件MyRc.res。
*/

#pragma resource "Chess.res"
#pragma resource "MyRc.res"

TMainForm *MainForm;
//---------------------------------------------------------------------------
__fastcall TMainForm::TMainForm(TComponent* Owner)
        : TForm(Owner)
{

}
//---------------------------------------------------------------------------
/*
主Form必須負(fù)責(zé)創(chuàng)建子Form,前面兩行分別創(chuàng)建了兩個(gè)子Form，接下來(lái)的兩行
將這些子Form放到一個(gè)數(shù)組中。然后，通過(guò)一個(gè)循環(huán)依次顯示這些子Form。
使用這項(xiàng)技術(shù)時(shí)，不要讓系統(tǒng)自動(dòng)創(chuàng)建這些子Form。為此，需要打開(kāi)
“Project Options”對(duì)話框，翻到“Form”頁(yè)，然后將這些子Form
從列表框移到“Available Forms”列表框中。
*/
void __fastcall TMainForm::FormCreate(TObject *Sender)
{
  InfoForm = new TInfoForm(this);
  EditForm = new TEditForm(this);
  ChildForms[1] = EditForm;
  ChildForms[2] = InfoForm;
  for (int i=1;i<3;i++)
    ChildForms[i]->Show();

   SoundOn = true;
   FileName = new char[MAXPATH];
   WhoseTurn = player;
   CurPlayer = red;
   ComputerColor = black;
   Editing = EditingChessBoard = GotStartSquare = false;
   blNewChessGame = true;
}
CheckLevelMenu(LEVELTYPE);
//---------------------------------------------------------------------------
/*
這是主窗體顯示時(shí)事件處理函數(shù)
從資源文件載入光標(biāo)及位圖
由于光標(biāo)及位圖保存在資源文件(.res)內(nèi)有兩個(gè)好處。第一，它可以包含不同類型
的多種資源。第二，C++ Builder可以方便地把一個(gè)資源文件連接入最后的可執(zhí)行
文件。
 "::"在變量前表明該變量是全局（外部）變量，
 在函數(shù)前表明該函數(shù)是全局（外部）函數(shù)。
*/
void __fastcall TMainForm::FormShow(TObject *Sender)
{
   HDC hDC;
   hDC = GetDC(MainForm->Handle);
   TEXTMETRIC tm;
   GetTextMetrics(hDC, &tm);
   CHARSIZE = short(tm.tmAveCharWidth);
   LINESIZE = short(tm.tmHeight + tm.tmExternalLeading);
   ReleaseDC(MainForm->Handle, hDC);
   BORDERSIZE = LINESIZE + MYFRAMESIZE;

 if ((GetSystemMetrics(SM_CXSCREEN)<800) || (GetSystemMetrics(SM_CYSCREEN)<600))
   MessageBox(NULL,"屏幕分辯率低于800X600!","警告",
      		 MB_ICONINFORMATION | MB_OK);

   Screen->Cursors[crWaitCursor]=LoadCursor(HInstance, "IDC_WCUR");
   //把自定義光標(biāo)裝入Screen對(duì)象
    ::PieceBmpArray[pawn-1][red]=LoadBitmap(HInstance, "RPawnBmp");
    ::PieceBmpArray[pawn-1][black] = LoadBitmap(HInstance, "BPawnBmp");
    ::PieceBmpArray[rook-1][red] = LoadBitmap(HInstance, "RRookBmp");
    ::PieceBmpArray[rook-1][black] = LoadBitmap(HInstance, "BRookBmp");
    ::PieceBmpArray[knight-1][black] = LoadBitmap(HInstance, "BKnightBmp");
    ::PieceBmpArray[bishop-1][black] = LoadBitmap(HInstance, "BBishopBmp");
    ::PieceBmpArray[assist-1][black] =  LoadBitmap(HInstance, "BAssistBmp");
    ::PieceBmpArray[gunner-1][black] =  LoadBitmap(HInstance, "BGunnerBmp");

    ::PieceBmpArray[knight-1][red] = LoadBitmap(HInstance, "RKnightBmp");
    ::PieceBmpArray[bishop-1][red] = LoadBitmap(HInstance, "RBishopBmp");
    ::PieceBmpArray[assist-1][red] = LoadBitmap(HInstance, "RAssistBmp");
    ::PieceBmpArray[gunner-1][red] = LoadBitmap(HInstance, "RGunnerBmp");
    ::PieceBmpArray[king-1][red] = LoadBitmap(HInstance, "RKingBmp");
    ::PieceBmpArray[king-1][black] = LoadBitmap(HInstance, "BKingBmp");
    ::MaskArray[pawn-1] = LoadBitmap(HInstance, "PMaskBmp");
    ::MaskArray[rook-1] = LoadBitmap(HInstance, "RMaskBmp");
    ::MaskArray[knight-1] =  LoadBitmap(HInstance, "KTMaskBmp");
    ::MaskArray[bishop-1] = LoadBitmap(HInstance, "BMaskBmp");
    ::MaskArray[assist-1] =  LoadBitmap(HInstance, "AMaskBmp");
    ::MaskArray[gunner-1] =   LoadBitmap(HInstance, "GMaskBmp");
    ::MaskArray[king-1] =  LoadBitmap(HInstance, "KMaskBmp");

    MainWndRect= MainForm->GetClientRect();
    MainForm->Menu=TChessMenu;    //設(shè)置主窗體主菜單
    Talk();
    MainForm->CheckLevelMenu(Level);
    hColorBrush = CreateSolidBrush(
      RGB(ColorSquareColors[0], ColorSquareColors[1], ColorSquareColors[2]));
    Dragging = true;
    Screen->Cursor = TCursor(crArrow); //分配箭頭光標(biāo)給應(yīng)用程序
    ChildForms[2]->BringToFront();
}

//---------------------------------------------------------------------------
/*
 設(shè)置主窗體背景
通過(guò)文件方式載入位圖。
對(duì)于位圖沒(méi)有保存在資源文件(.res)內(nèi)，C++ Builder不能把從文件裝入的位圖
連接入最后的可執(zhí)行文件。因此，必須確保在c:\BcbChess下有必需的位圖文件。
 很明顯，使用VCL函數(shù)比原始的API函數(shù)要方便得多。使用后，
 應(yīng)將Canvas->Brush->Bitmap這個(gè)特性設(shè)為NULL，以釋放位圖。
 如果不刪除位圖，將導(dǎo)致程序內(nèi)存不足。
*/
 void TMainForm::SetMainWindowBk()
   {
      Graphics::TBitmap *BLKBrushBmp = new Graphics::TBitmap();

      BLKBrushBmp->LoadFromFile("BKBrush.bmp");
      //BLKBrushBmp->LoadFromFile("c:\\BcbChess\\BKBrush.bmp");
      MainForm->Canvas->Brush->Bitmap=BLKBrushBmp;
      MainForm->Canvas->FillRect(MainForm->GetClientRect());
      MainForm->Canvas->Brush->Bitmap=NULL;
       delete BLKBrushBmp;
   }
//---------------------------------------------------------------------------
/*
主窗體重畫(huà)事件處理函數(shù)
ReleaseDC函數(shù)釋放設(shè)備描述句柄，不然，會(huì)導(dǎo)致系統(tǒng)資源不足
*/
void __fastcall TMainForm::FormPaint(TObject *Sender)
{
  SetMainWindowBk();
  HDC PaintDC = GetDC(MainForm->Handle);
  DrawFrame(PaintDC, MainWndRect);
  ReleaseDC(MainForm->Handle, PaintDC);
  PaintDC = GetDC(InfoForm->Handle);
  DrawFrame(PaintDC, InfoAreaRect);
  ReleaseDC(InfoForm->Handle, PaintDC);
  PrintChessBoard();
}
//---------------------------------------------------------------------------
/*
鼠標(biāo)按下時(shí)事件處理函數(shù)
對(duì)弈狀態(tài)時(shí)，按下左鼠標(biāo)，可以抓住棋子進(jìn)行移動(dòng)，第二次按下時(shí)，釋放棋子。
編輯狀態(tài)時(shí)，按下左鼠標(biāo)，可以使編輯窗體中的棋子透明顯示，第二次在主窗體按下時(shí)，
可以添加棋子，再按擊時(shí)，擦除棋子。
*/
void __fastcall TMainForm::FormMouseDown(TObject *Sender,
      TMouseButton Button, TShiftState Shift, int X, int Y)
{
   POINT point;
   if (Button != mbLeft)
    return;
    MouseX=X;
    MouseY=Y;
   if (EditingChessBoard)
      {
      DoEdit();
      return;
      }

   if (WhoseTurn == computer && NoComputerMove == false)
      return;
  
  point=Point(MouseX,MouseY);
  MainForm->ScreenToClient( point);

   if (!GotStartSquare)
      {
      MoveStartSquare = GetValidSquare(point, CurPlayer, true);
      if (MoveStartSquare == -1)
         return;
      GotStartSquare = true;
      if (!Dragging)
         DrawInvertedBitmap(MoveStartSquare);
      else
         DragStart(MoveStartSquare, point);
      }
   else
      {
      MoveEndSquare = GetValidSquare(point, CurPlayer, false);
      GotStartSquare = false;
      if (MoveEndSquare == -1)
         {
         if (Dragging)
              DragEnd(false);
	 Warning("錯(cuò)誤的移動(dòng)!");
         DrawNormalBitmap(MoveStartSquare);
         return;
         }
      if (!MoveCheck(MoveStartSquare, MoveEndSquare))
         {
         if (Dragging)
            DragEnd(false);
         DrawNormalBitmap(MoveStartSquare);
         return;
         }
      GotValidMove = true;
      UndoMove->Enabled = true;
      if (GameOver)
         EndGame();
      else if (NoComputerMove == false)
         ComputersTurn();
      else if (MultiMove)
         {
         CurPlayer = (CurPlayer == red) ? black : red;
         }
      }
}
//---------------------------------------------------------------------------
/*
輪到計(jì)算機(jī)計(jì)算時(shí)的回調(diào)函數(shù)。
程序處于機(jī)器控制狀態(tài)。主菜單發(fā)生改變。光標(biāo)發(fā)生改變。
*/
void TMainForm::ComputersTurn()
{
   WhoseTurn = computer;
   Screen->Cursor =TCursor(crWaitCursor); //分配等待光標(biāo)給應(yīng)用程序
   MainForm->Menu=TChessThinkMenu; //設(shè)置主窗體主菜單
   ProgramMove();
   MainForm->Menu=TChessMenu;  //動(dòng)態(tài)設(shè)置主窗體主菜單
   WhoseTurn = player;
   Screen->Cursor = TCursor(crArrow); //分配箭頭光標(biāo)給應(yīng)用程序
   if (GameOver)
      EndGame();
}
//---------------------------------------------------------------------------
/*
主菜單項(xiàng)“新建”事件處理函數(shù)
主窗體進(jìn)入初始對(duì)弈狀態(tài)。同時(shí)清除信息窗體中的提示信息。
*/

void __fastcall TMainForm::NewChessGame1Click(TObject *Sender)
{
   Timer1->Enabled=false;
   InfoForm->Timer->Caption="時(shí)間：";
   UndoMove->Enabled = false;
   RedoUndo->Enabled = false;

   blNewChessGame = true;
   NewChessGame();
   PrintChessBoard();
   CurPlayer = Player;
   ComputerColor = Opponent;
}
//---------------------------------------------------------------------------
/*
自定義IDM_FILENEW消息回調(diào)函數(shù)
按擊動(dòng)態(tài)對(duì)話框“Yes”按鈕發(fā)送一個(gè)消息，相當(dāng)于按擊主菜單項(xiàng)“新建”
*/
void TMainForm::FileNew(TMessage &Msg)
{
 MainForm->NewChessGame1Click(NewChessGame1);
}
//---------------------------------------------------------------------------
/*
主菜單項(xiàng)“恢復(fù)”事件處理函數(shù)
調(diào)用公用對(duì)話框打開(kāi)控件函數(shù)，讀入二進(jìn)制棋盤文件。
*/
void __fastcall TMainForm::RestoreGame1Click(TObject *Sender)
{
     if(OpenDialog1->Execute())
      {
      blNewChessGame = false;
      RestoreGame(MainForm->OpenDialog1->FileName.c_str());
      CurPlayer = Player;
      ComputerColor = Opponent;
      RedoUndo->Enabled = false;   //重下菜單變灰
      UndoMove->Enabled = false;   //悔棋菜單變灰
      }
}
//---------------------------------------------------------------------------
/*
自定義函數(shù)
調(diào)用公用對(duì)話框保存控件函數(shù)，寫入二進(jìn)制棋盤文件。
*/
void  TMainForm::SaveGameAs()
{
    if(SaveDialog1->Execute())
 {
 blNewChessGame=false;
 SaveGame(MainForm->SaveDialog1->FileName.c_str());
 }
}

//---------------------------------------------------------------------------
/*
主菜單項(xiàng)“保存”事件處理函數(shù)
調(diào)用公用對(duì)話框保存控件函數(shù)，寫入二進(jìn)制棋盤文件。
*/
void __fastcall TMainForm::SaveGame1Click(TObject *Sender)
{
  if (blNewChessGame == true)
     SaveGameAs();
   else
     SaveGame(MainForm->SaveDialog1->FileName.c_str());

}
//---------------------------------------------------------------------------
/*
主菜單項(xiàng)“另存為...”事件處理函數(shù)
調(diào)用公用對(duì)話框保存控件函數(shù)，寫入二進(jìn)制棋盤文件。
*/
 void __fastcall TMainForm::SaveGameAsClick(TObject *Sender)
{
      SaveGameAs();
}
//---------------------------------------------------------------------------
/*
 自定義消息IDM_ERROR的回調(diào)函數(shù)
  動(dòng)態(tài)構(gòu)造、顯示和刪除ChessErrorDlg。
  雖然沒(méi)有寫TChessErrorDlg的析構(gòu)函數(shù)，但當(dāng)刪除它們的Owner時(shí)VCL自動(dòng)刪除
  了控件。如果包含非可視化對(duì)象的指針，則需要增加ChessErrorDlg的析構(gòu)函數(shù)。
*/
void TMainForm::EMError(TMessage &Msg)
{
  TChessErrorDlg *ChessErrorDlg= new TChessErrorDlg(Application,(AnsiString)buffer);
  ChessErrorDlg->ShowModal();
  delete  ChessErrorDlg;
}
/*
主菜單項(xiàng)“關(guān)于”事件處理函數(shù)
調(diào)用自定義靜態(tài)對(duì)話框函數(shù)，無(wú)模態(tài)顯示版權(quán)信息。
*/
void __fastcall TMainForm::AboutClick(TObject *Sender)
{
 AboutDlg->Show();
}
//---------------------------------------------------------------------------
/*
自定義編輯函數(shù)
讀取光標(biāo)位置，把選擇的棋子在主窗體上的合法位置上顯示出來(lái)。
*/
void TMainForm::DoEdit()
{
   POINT point;
   SQUARETYPE Square;
   int SelectedItem;
   Modified = true;
   point=Point(MouseX,MouseY);
   MainForm->ScreenToClient(point);
   Square = GetValidSquare(point, black, false);

   if (ChessBoard[Square].piece != empty)
      {
      ChessBoard[Square].piece = empty;
      UpdateChessBoard();
      return;
      }
    SelectedItem = EditForm->GetSelectedItem();

    ChessBoard[Square].piece = (PIECETYPE)(SelectedItem % 7 + 1);
    ChessBoard[Square].color = (SelectedItem < 7) ? red : black;
    UpdateChessBoard();
}

//---------------------------------------------------------------------------
/*
菜單項(xiàng)“擺子”的回調(diào)函數(shù)。
  EditForm->BringToFront()將編輯子窗體EditForm推到前端。
  CheckMenuItem第一個(gè)參數(shù)為菜單句柄，從菜單TChessEditMenu句柄屬性Handle獲取。
      第二個(gè)參數(shù)告訴菜單項(xiàng)是用命令I(lǐng)D指明的。
      第三個(gè)參數(shù)它告訴菜單項(xiàng)是應(yīng)該執(zhí)行哪一些操作。在這種情況下，
      MF_CHECKED告訴CheckMenuItem菜單項(xiàng)被打勾。
      MF_UNCHECKED告訴CheckMenuItem菜單項(xiàng)勾被取消。
*/
void __fastcall TMainForm::MovePieceClick(TObject *Sender)
{
    SaveChessBoard = new BOARDTYPE[0x99];
   if (SaveChessBoard == NULL)
      {
      Error("沒(méi)有足夠的內(nèi)存");
      return;
      }
    memcpy(SaveChessBoard, ChessBoard, sizeof(BOARDTYPE) * 0x99);
   Editing = EditingChessBoard = true;
   MainForm->Menu=TChessEditMenu; //動(dòng)態(tài)設(shè)置主窗體主菜單
   Modified = false;
   if (CurPlayer == red)
      {
       CheckMenuItem(TChessEditMenu->Handle, BlackTurn->Command, MF_UNCHECKED);
       CheckMenuItem(TChessEditMenu->Handle, RedTurn->Command, MF_CHECKED);
      }
   else
      {
      CheckMenuItem(TChessEditMenu->Handle, BlackTurn->Command, MF_CHECKED);
      CheckMenuItem(TChessEditMenu->Handle, RedTurn->Command, MF_UNCHECKED);
      }
   EditForm->BringToFront();
}
//---------------------------------------------------------------------------
/*
主菜單項(xiàng)“清除”事件處理函數(shù)
把主窗體中棋盤上棋子全部擦除。
*/

void __fastcall TMainForm::ClearClick(TObject *Sender)
{
  SQUARETYPE sq;

   Modified = true;
    for (sq = 0; sq <= 0x98; sq++)
      ChessBoard[sq].piece = empty;
    UpdateChessBoard();

}
//---------------------------------------------------------------------------