1 files changed, 353 insertions, 300 deletions
diff --git a/Game/Code/Classes/UCommon.pas b/Game/Code/Classes/UCommon.pas
index dce11ea0..5582c59b 100644
--- a/Game/Code/Classes/UCommon.pas
+++ b/Game/Code/Classes/UCommon.pas
@@ -1,300 +1,353 @@
-unit UCommon;
-
-interface
-
-{$IFDEF FPC}
-  {$MODE Delphi}
-{$ENDIF}
-
-{$I switches.inc}
-
-uses
-  SysUtils,
-  Classes,
-  Messages,
-{$IFDEF LCL}
-  lResources,
-{$ENDIF}
-{$IFDEF win32}
-  Windows,
-{$ENDIF}
-  ULog;
-
-{$IFNDEF DARWIN}
-// FIXME: remove this if it is not needed anymore
-type
-  hStream        = THandle;
-  HGLRC          = THandle;
-  TLargeInteger  = Int64;
-  TWin32FindData = LongInt;
-{$ENDIF}
-
-{$IFDEF LCL}
-  function LazFindResource( const aName, aType : String ): TLResource;
-{$ENDIF}
-
-procedure ShowMessage( const msg : String );
-
-{$IFDEF FPC}
-function RandomRange(aMin: Integer; aMax: Integer) : Integer;
-{$ENDIF}
-
-{$IF Defined(MSWINDOWS) and Defined(FPC)}
-function  AllocateHWnd(Method: TWndMethod): HWND;
-procedure DeallocateHWnd(hWnd: HWND);
-{$IFEND}
-
-function StringReplaceW(text : WideString; search, rep: WideChar):WideString;
-function AdaptFilePaths( const aPath : widestring ): widestring;
-
-
-{$IFNDEF win32}
-  procedure ZeroMemory( Destination: Pointer; Length: DWORD );
-{$ENDIF}
-
-(*
- * Character classes
- *)
-
-function IsAlphaChar(ch: WideChar): boolean;
-function IsNumericChar(ch: WideChar): boolean;
-function IsAlphaNumericChar(ch: WideChar): boolean;
-function IsPunctuationChar(ch: WideChar): boolean;
-function IsControlChar(ch: WideChar): boolean;
-
-
-implementation
-
-uses
-{$IFDEF Delphi}
-  Dialogs,
-{$ENDIF}
-  UConfig;
-
-function StringReplaceW(text : WideString; search, rep: WideChar):WideString;
-var
-  iPos  : integer;
-//  sTemp : WideString;
-begin
-(*
-  result := text;
-  iPos   := Pos(search, result);
-  while (iPos > 0) do
-  begin
-    sTemp  := copy(result, iPos + length(search), length(result));
-    result := copy(result, 1, iPos - 1) + rep + sTEmp;
-    iPos   := Pos(search, result);
-  end;
-*)
-  result := text;
-
-  if search = rep then
-    exit;
-
-  for iPos := 0 to length( result ) - 1 do
-  begin
-    if result[ iPos ] = search then
-      result[ iPos ] := rep;
-  end;
-end;
-
-function AdaptFilePaths( const aPath : widestring ): widestring;
-begin
-  result := StringReplaceW( aPath, '\', PathDelim );//, [rfReplaceAll] );
-end;
-
-
-{$IFNDEF win32}
-procedure ZeroMemory( Destination: Pointer; Length: DWORD );
-begin
-  FillChar( Destination^, Length, 0 );
-end; //ZeroMemory
-
-(*
-function QueryPerformanceCounter(lpPerformanceCount:TLARGEINTEGER):Bool;
-
-  // From http://en.wikipedia.org/wiki/RDTSC
-  function RDTSC: Int64; register;
-  asm
-    rdtsc
-  end;
-
-begin
-  // Use clock_gettime  here maybe ... from libc
-  lpPerformanceCount := RDTSC();
-  result := true;
-end;
-
-function QueryPerformanceFrequency(lpFrequency:TLARGEINTEGER):Bool;
-begin
-  lpFrequency := 0;
-  result := true;
-end;
-*)
-{$ENDIF}
-
-
-{$IFDEF LCL}
-function LazFindResource( const aName, aType : String ): TLResource;
-var
-  iCount : Integer;
-begin
-  result := nil;
-
-  for iCount := 0 to LazarusResources.count -1 do
-  begin
-    if ( LazarusResources.items[ iCount ].Name      = aName ) AND
-       ( LazarusResources.items[ iCount ].ValueType = aType ) THEN
-    begin
-      result := LazarusResources.items[ iCount ];
-      exit;
-    end;
-  end;
-end;
-{$ENDIF}
-
-{$IFDEF FPC}
-function RandomRange(aMin: Integer; aMax: Integer) : Integer;
-begin
-  RandomRange := Random(aMax-aMin) + aMin ;
-end;
-{$ENDIF}
-
-{$IF Defined(MSWINDOWS) and Defined(FPC)}
-function AllocateHWndCallback(hWnd: HWND; uMsg: UINT; wParam: WPARAM; lParam: LPARAM): LRESULT; stdcall;
-var
-  Msg: TMessage;
-  MethodPtr: ^TWndMethod;
-begin
-  FillChar(Msg, SizeOf(Msg), 0);  
-  Msg.msg := uMsg;
-  Msg.wParam := wParam;
-  Msg.lParam := lParam;
-
-  MethodPtr := Pointer(GetWindowLongPtr(hwnd, GWL_USERDATA));
-  if Assigned(MethodPtr) then
-    MethodPtr^(Msg);
-   
-  Result := DefWindowProc(hwnd, uMsg, wParam, lParam);
-end;
-
-function AllocateHWnd(Method: TWndMethod): HWND;
-var
-  ClassExists: Boolean;
-  WndClass, OldClass: TWndClass;
-  MethodPtr: ^TMethod;
-begin
-  Result := 0;
-
-  // setup class-info
-  FillChar(WndClass, SizeOf(TWndClass), 0);
-  WndClass.hInstance := HInstance;
-  // Important: do not enable AllocateHWndCallback before the msg-handler method is assigned,
-  //   otherwise race-conditions might occur
-  WndClass.lpfnWndProc := @DefWindowProc;
-  WndClass.lpszClassName:= 'USDXUtilWindowClass';
-
-  // check if class is already registered
-  ClassExists := GetClassInfo(HInstance, WndClass.lpszClassName, OldClass);
-  // create window-class shared by all windows created by AllocateHWnd()
-  if (not ClassExists) or (@OldClass.lpfnWndProc <> @DefWindowProc) then
-  begin
-    if ClassExists then
-      UnregisterClass(WndClass.lpszClassName, HInstance);
-    if (RegisterClass(WndClass) = 0) then
-       Exit;
-  end;
-  // create window
-  Result := CreateWindowEx(WS_EX_TOOLWINDOW, WndClass.lpszClassName, '',
-    WS_POPUP, 0, 0, 0, 0, 0, 0, HInstance, nil);
-  if (Result = 0) then
-    Exit;
-  // assign individual callback procedure to the window
-  if Assigned(Method) then
-  begin
-    // TMethod contains two pointers but we can pass just one as USERDATA
-    GetMem(MethodPtr, SizeOf(TMethod));
-    MethodPtr^ := TMethod(Method);
-    SetWindowLongPtr(Result, GWL_USERDATA, LONG_PTR(MethodPtr));
-  end;
-  // now enable AllocateHWndCallback for this window
-  SetWindowLongPtr(Result, GWL_WNDPROC, LONG_PTR(@AllocateHWndCallback));
-end;
-
-procedure DeallocateHWnd(hWnd: HWND);
-var
-  MethodPtr: ^TMethod;
-begin
-  if (hWnd <> 0) then
-  begin
-    MethodPtr := Pointer(GetWindowLongPtr(hWnd, GWL_USERDATA));
-    DestroyWindow(hWnd);
-    if Assigned(MethodPtr) then
-      FreeMem(MethodPtr);
-  end;
-end;
-{$IFEND}
-
-procedure ShowMessage( const msg : String );
-begin
-{$IF Defined(MSWINDOWS)}
-  MessageBox(0, PChar(msg), PChar(USDXVersionStr()), MB_ICONINFORMATION);
-{$ELSE}
-  debugwriteln(msg);
-{$IFEND}
-end;
-
-function IsAlphaChar(ch: WideChar): boolean;
-begin
-  // TODO: add chars > 255 when unicode-fonts work?
-  case ch of
-    'A'..'Z',  // A-Z
-    'a'..'z',  // a-z
-    #170,#181,#186,
-    #192..#214,
-    #216..#246,
-    #248..#255:
-      Result := true;
-    else
-      Result := false;
-  end;
-end;
-
-function IsNumericChar(ch: WideChar): boolean;
-begin
-  case ch of
-    '0'..'9':
-      Result := true;
-    else
-      Result := false;
-  end;
-end;
-
-function IsAlphaNumericChar(ch: WideChar): boolean;
-begin
-  Result := (IsAlphaChar(ch) or IsNumericChar(ch));
-end;
-
-function IsPunctuationChar(ch: WideChar): boolean;
-begin
-  // TODO: add chars outside of Latin1 basic (0..127)?
-  case ch of
-    ' '..'/',':'..'@','['..'`','{'..'~':
-      Result := true;
-    else
-      Result := false;
-  end;
-end;
-
-function IsControlChar(ch: WideChar): boolean;
-begin
-  case ch of
-    #0..#31,
-    #127..#159:
-      Result := true;
-    else
-      Result := false;
-  end;
-end;
-
-end.
+unit UCommon;
+
+interface
+
+{$IFDEF FPC}
+  {$MODE Delphi}
+{$ENDIF}
+
+{$I switches.inc}
+
+uses
+  SysUtils,
+  Classes,
+{$IFDEF MSWINDOWS}
+  Windows,
+  Messages,
+{$ENDIF}
+  ULog;
+
+{$IFNDEF DARWIN}
+// FIXME: remove this if it is not needed anymore
+type
+  hStream        = THandle;
+  HGLRC          = THandle;
+  TLargeInteger  = Int64;
+  TWin32FindData = LongInt;
+{$ENDIF}
+
+function GetResourceStream(const aName, aType : string): TStream;
+
+procedure ShowMessage( const msg : String );
+
+{$IFDEF FPC}
+function RandomRange(aMin: Integer; aMax: Integer) : Integer;
+{$ENDIF}
+
+{$IF Defined(MSWINDOWS) and Defined(FPC)}
+function  AllocateHWnd(Method: TWndMethod): HWND;
+procedure DeallocateHWnd(hWnd: HWND);
+{$IFEND}
+
+function StringReplaceW(text : WideString; search, rep: WideChar):WideString;
+function AdaptFilePaths( const aPath : widestring ): widestring;
+
+
+{$IFNDEF win32}
+  procedure ZeroMemory( Destination: Pointer; Length: DWORD );
+{$ENDIF}
+
+function FileExistsInsensitive(var FileName: string): boolean;
+
+(*
+ * Character classes
+ *)
+
+function IsAlphaChar(ch: WideChar): boolean;
+function IsNumericChar(ch: WideChar): boolean;
+function IsAlphaNumericChar(ch: WideChar): boolean;
+function IsPunctuationChar(ch: WideChar): boolean;
+function IsControlChar(ch: WideChar): boolean;
+
+
+implementation
+
+uses
+{$IFDEF Delphi}
+  Dialogs,
+{$ENDIF}
+  UMain,
+  UConfig;
+
+function StringReplaceW(text : WideString; search, rep: WideChar):WideString;
+var
+  iPos  : integer;
+//  sTemp : WideString;
+begin
+(*
+  result := text;
+  iPos   := Pos(search, result);
+  while (iPos > 0) do
+  begin
+    sTemp  := copy(result, iPos + length(search), length(result));
+    result := copy(result, 1, iPos - 1) + rep + sTEmp;
+    iPos   := Pos(search, result);
+  end;
+*)
+  result := text;
+
+  if search = rep then
+    exit;
+
+  for iPos := 0 to length( result ) - 1 do
+  begin
+    if result[ iPos ] = search then
+      result[ iPos ] := rep;
+  end;
+end;
+
+function AdaptFilePaths( const aPath : widestring ): widestring;
+begin
+  result := StringReplaceW( aPath, '\', PathDelim );//, [rfReplaceAll] );
+end;
+
+
+{$IFNDEF win32}
+procedure ZeroMemory( Destination: Pointer; Length: DWORD );
+begin
+  FillChar( Destination^, Length, 0 );
+end; //ZeroMemory
+
+(*
+function QueryPerformanceCounter(lpPerformanceCount:TLARGEINTEGER):Bool;
+
+  // From http://en.wikipedia.org/wiki/RDTSC
+  function RDTSC: Int64; register;
+  asm
+    rdtsc
+  end;
+
+begin
+  // Use clock_gettime  here maybe ... from libc
+  lpPerformanceCount := RDTSC();
+  result := true;
+end;
+
+function QueryPerformanceFrequency(lpFrequency:TLARGEINTEGER):Bool;
+begin
+  lpFrequency := 0;
+  result := true;
+end;
+*)
+{$ENDIF}
+
+// Checks if a regular files or directory with the given name exists.
+// The comparison is case insensitive.
+function FileExistsInsensitive(var FileName: string): boolean;
+var
+  FilePath, LocalFileName: string;
+  SearchInfo: TSearchRec;
+begin
+{$IFDEF LINUX} // eddie: Changed FPC to LINUX: Windows and Mac OS X dont have case sensitive file systems
+  // speed up standard case
+  if FileExists(FileName) then
+  begin
+    Result := true;
+    exit;
+  end;
+
+  Result := false;
+
+  FilePath := ExtractFilePath(FileName);
+  if (FindFirst(FilePath+'*', faAnyFile, SearchInfo) = 0) then
+  begin
+    LocalFileName := ExtractFileName(FileName);
+    repeat
+      if (AnsiSameText(LocalFileName, SearchInfo.Name)) then
+      begin
+        FileName := FilePath + SearchInfo.Name;
+        Result := true;
+        break;
+      end;
+    until (FindNext(SearchInfo) <> 0);
+  end;
+  FindClose(SearchInfo);
+{$ELSE}
+  Result := FileExists(FileName);
+{$ENDIF}
+end;
+
+
+{$IFDEF Linux}
+  // include resource-file info (stored in the constant array "resources")
+  {$I ../resource.inc}
+{$ENDIF}
+
+function GetResourceStream(const aName, aType: string): TStream;
+{$IFDEF Linux}
+var
+  ResIndex: integer;
+  Filename: string;
+{$ENDIF}
+begin
+  Result := nil;
+
+  {$IFDEF Linux}
+  for ResIndex := 0 to High(resources) do
+  begin
+    if (resources[ResIndex][0] = aName ) and
+       (resources[ResIndex][1] = aType ) then
+    begin
+      try
+        Filename := ResourcesPath + resources[ResIndex][2];
+        Result := TFileStream.Create(Filename, fmOpenRead);
+      except
+        Log.LogError('Failed to open: "'+ resources[ResIndex][2] +'"', 'GetResourceStream');
+      end;
+      exit;
+    end;
+  end;
+  {$ELSE}
+  try
+    Result := TResourceStream.Create(HInstance, aName , PChar(aType));
+  except
+    Log.LogError('Invalid resource: "'+ aType + ':' + aName +'"', 'GetResourceStream');
+  end;
+  {$ENDIF}
+end;
+
+{$IFDEF FPC}
+function RandomRange(aMin: Integer; aMax: Integer) : Integer;
+begin
+  RandomRange := Random(aMax-aMin) + aMin ;
+end;
+{$ENDIF}
+
+{$IF Defined(MSWINDOWS) and Defined(FPC)}
+function AllocateHWndCallback(hWnd: HWND; uMsg: UINT; wParam: WPARAM; lParam: LPARAM): LRESULT; stdcall;
+var
+  Msg: TMessage;
+  MethodPtr: ^TWndMethod;
+begin
+  FillChar(Msg, SizeOf(Msg), 0);  
+  Msg.msg := uMsg;
+  Msg.wParam := wParam;
+  Msg.lParam := lParam;
+
+  MethodPtr := Pointer(GetWindowLongPtr(hwnd, GWL_USERDATA));
+  if Assigned(MethodPtr) then
+    MethodPtr^(Msg);
+   
+  Result := DefWindowProc(hwnd, uMsg, wParam, lParam);
+end;
+
+function AllocateHWnd(Method: TWndMethod): HWND;
+var
+  ClassExists: Boolean;
+  WndClass, OldClass: TWndClass;
+  MethodPtr: ^TMethod;
+begin
+  Result := 0;
+
+  // setup class-info
+  FillChar(WndClass, SizeOf(TWndClass), 0);
+  WndClass.hInstance := HInstance;
+  // Important: do not enable AllocateHWndCallback before the msg-handler method is assigned,
+  //   otherwise race-conditions might occur
+  WndClass.lpfnWndProc := @DefWindowProc;
+  WndClass.lpszClassName:= 'USDXUtilWindowClass';
+
+  // check if class is already registered
+  ClassExists := GetClassInfo(HInstance, WndClass.lpszClassName, OldClass);
+  // create window-class shared by all windows created by AllocateHWnd()
+  if (not ClassExists) or (@OldClass.lpfnWndProc <> @DefWindowProc) then
+  begin
+    if ClassExists then
+      UnregisterClass(WndClass.lpszClassName, HInstance);
+    if (RegisterClass(WndClass) = 0) then
+       Exit;
+  end;
+  // create window
+  Result := CreateWindowEx(WS_EX_TOOLWINDOW, WndClass.lpszClassName, '',
+    WS_POPUP, 0, 0, 0, 0, 0, 0, HInstance, nil);
+  if (Result = 0) then
+    Exit;
+  // assign individual callback procedure to the window
+  if Assigned(Method) then
+  begin
+    // TMethod contains two pointers but we can pass just one as USERDATA
+    GetMem(MethodPtr, SizeOf(TMethod));
+    MethodPtr^ := TMethod(Method);
+    SetWindowLongPtr(Result, GWL_USERDATA, LONG_PTR(MethodPtr));
+  end;
+  // now enable AllocateHWndCallback for this window
+  SetWindowLongPtr(Result, GWL_WNDPROC, LONG_PTR(@AllocateHWndCallback));
+end;
+
+procedure DeallocateHWnd(hWnd: HWND);
+var
+  MethodPtr: ^TMethod;
+begin
+  if (hWnd <> 0) then
+  begin
+    MethodPtr := Pointer(GetWindowLongPtr(hWnd, GWL_USERDATA));
+    DestroyWindow(hWnd);
+    if Assigned(MethodPtr) then
+      FreeMem(MethodPtr);
+  end;
+end;
+{$IFEND}
+
+procedure ShowMessage( const msg : String );
+begin
+{$IF Defined(MSWINDOWS)}
+  MessageBox(0, PChar(msg), PChar(USDXVersionStr()), MB_ICONINFORMATION);
+{$ELSE}
+  debugwriteln(msg);
+{$IFEND}
+end;
+
+function IsAlphaChar(ch: WideChar): boolean;
+begin
+  // TODO: add chars > 255 when unicode-fonts work?
+  case ch of
+    'A'..'Z',  // A-Z
+    'a'..'z',  // a-z
+    #170,#181,#186,
+    #192..#214,
+    #216..#246,
+    #248..#255:
+      Result := true;
+    else
+      Result := false;
+  end;
+end;
+
+function IsNumericChar(ch: WideChar): boolean;
+begin
+  case ch of
+    '0'..'9':
+      Result := true;
+    else
+      Result := false;
+  end;
+end;
+
+function IsAlphaNumericChar(ch: WideChar): boolean;
+begin
+  Result := (IsAlphaChar(ch) or IsNumericChar(ch));
+end;
+
+function IsPunctuationChar(ch: WideChar): boolean;
+begin
+  // TODO: add chars outside of Latin1 basic (0..127)?
+  case ch of
+    ' '..'/',':'..'@','['..'`','{'..'~':
+      Result := true;
+    else
+      Result := false;
+  end;
+end;
+
+function IsControlChar(ch: WideChar): boolean;
+begin
+  case ch of
+    #0..#31,
+    #127..#159:
+      Result := true;
+    else
+      Result := false;
+  end;
+end;
+
+end.