1 files changed, 300 insertions, 293 deletions
diff --git a/Game/Code/Classes/UCommon.pas b/Game/Code/Classes/UCommon.pas
index 62d7df65..dce11ea0 100644
--- a/Game/Code/Classes/UCommon.pas
+++ b/Game/Code/Classes/UCommon.pas
@@ -1,293 +1,300 @@
-unit UCommon;
-
-interface
-
-{$IFDEF FPC}
-  {$MODE Delphi}
-{$ENDIF}
-
-{$I switches.inc}
-
-uses
-  SysUtils,
-{$IFDEF LAZARUS}
-   lResources,
-{$ENDIF}
-   ULog,
-{$IFDEF DARWIN}
-  messages,
-{$ENDIF}
-{$IFDEF win32}
-   windows;
-{$ELSE}
-   lcltype,
-   messages;
-{$ENDIF}
-
-{$IFNDEF win32}
-type
-  hStream        = THandle;
-  HGLRC          = THandle;
-  TLargeInteger  = Int64;
-  TWin32FindData = LongInt;
-{$ENDIF}
-
-{$IFDEF LAZARUS}
-  function LazFindResource( const aName, aType : String ): TLResource;
-{$ENDIF}
-
-{$IFDEF DARWIN}
-  procedure ShowMessage( const msg : String );
-{$ENDIF}
-
-{$IFDEF FPC}
-
-function RandomRange(aMin: Integer; aMax: Integer) : Integer;
-
-function MaxValue(const Data: array of Double): Double;
-function MinValue(const Data: array of Double): Double;
-
-  {$IFDEF WIN32}
-  type
-    TWndMethod = procedure(var Message: TMessage) of object;
-  function  AllocateHWnd(Method: TWndMethod): HWND;
-  procedure DeallocateHWnd(Wnd: HWND);
-  {$ENDIF} // Win32
-
-{$ENDIF} // FPC Only
-
-function StringReplaceW(text : WideString; search, rep: WideChar):WideString;
-function AdaptFilePaths( const aPath : widestring ): widestring;
-
-
-{$IFNDEF win32}
-(*
-  function QueryPerformanceCounter(lpPerformanceCount:TLARGEINTEGER):Bool;
-  function QueryPerformanceFrequency(lpFrequency:TLARGEINTEGER):Bool;
-*)
-  procedure ZeroMemory( Destination: Pointer; Length: DWORD );
-{$ENDIF}
-
-// eddie: FindFirstW etc are now in UPlatformWindows.pas
-
-(*
- * Character classes
- *)
-
-function IsAlphaChar(ch: WideChar): boolean;
-function IsNumericChar(ch: WideChar): boolean;
-function IsAlphaNumericChar(ch: WideChar): boolean;
-function IsPunctuationChar(ch: WideChar): boolean;
-function IsControlChar(ch: WideChar): boolean;
-
-
-implementation
-
-function StringReplaceW(text : WideString; search, rep: WideChar):WideString;
-var
-  iPos  : integer;
-//  sTemp : WideString;
-begin
-(*
-  result := text;
-  iPos   := Pos(search, result);
-  while (iPos > 0) do
-  begin
-    sTemp  := copy(result, iPos + length(search), length(result));
-    result := copy(result, 1, iPos - 1) + rep + sTEmp;
-    iPos   := Pos(search, result);
-  end;
-*)
-  result := text;
-
-  if search = rep then
-    exit;
-
-  for iPos := 0 to length( result ) - 1 do
-  begin
-    if result[ iPos ] = search then
-      result[ iPos ] := rep;
-  end;
-end;
-
-function AdaptFilePaths( const aPath : widestring ): widestring;
-begin
-  result := StringReplaceW( aPath, '\', PathDelim );//, [rfReplaceAll] );
-end;
-
-
-{$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 LAZARUS}
-
-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}
-// FIXME: already exists in FPC
-function MaxValue(const Data: array of Double): Double;
-var
-  I: Integer;
-begin
-  Result := Data[Low(Data)];
-  for I := Low(Data) + 1 to High(Data) do
-    if Result < Data[I] then
-      Result := Data[I];
-end;
-
-// FIXME: already exists in FPC
-function MinValue(const Data: array of Double): Double;
-var
-  I: Integer;
-begin
-  Result := Data[Low(Data)];
-  for I := Low(Data) + 1 to High(Data) do
-    if Result > Data[I] then
-      Result := Data[I];
-end;
-
-function RandomRange(aMin: Integer; aMax: Integer) : Integer;
-begin
-RandomRange := Random(aMax-aMin) + aMin ;
-end;
-
-
-// NOTE !!!!!!!!!!
-// AllocateHWnd is in lclintfh.inc
-
-{$IFDEF MSWINDOWS}
-// TODO : JB this is dodgey and bad... find a REAL solution !
-function AllocateHWnd(Method: TWndMethod): HWND;
-var
-  TempClass: TWndClass;
-  ClassRegistered: Boolean;
-begin
-  Result := CreateWindowEx(WS_EX_TOOLWINDOW, '', '', WS_POPUP , 0, 0, 0, 0, 0, 0, HInstance, nil);
-end;
-
-procedure DeallocateHWnd(Wnd: HWND);
-var
-  Instance: Pointer;
-begin
-  Instance := Pointer(GetWindowLong(Wnd, GWL_WNDPROC));
-  DestroyWindow(Wnd);
-end;
-{$ENDIF}
-{$IFDEF DARWIN}
-// TODO : Situation for the mac isn't better !
-function AllocateHWnd(Method: TWndMethod): HWND;
-begin
-end;
-
-procedure DeallocateHWnd(Wnd: HWND);
-begin
-end;
-{$ENDIF} // IFDEF DARWIN
-
-{$ENDIF} // IFDEF FPC
-
-{$IFDEF DARWIN}
-procedure ShowMessage( const msg : String );
-begin
-	//eddie: what to do here?
-end;
-{$ENDIF}
-
-
-function IsAlphaChar(ch: WideChar): boolean;
-begin
-  // TODO: add chars > 255 when unicode-fonts work?
-  case ch of
-    'A'..'Z',  // A-Z
-    'a'..'z',  // a-z
-    #170,#181,#186,
-    #192..#214,
-    #216..#246,
-    #248..#255:
-      Result := true;
-    else
-      Result := false;
-  end;
-end;
-
-function IsNumericChar(ch: WideChar): boolean;
-begin
-  case ch of
-    '0'..'9':
-      Result := true;
-    else
-      Result := false;
-  end;
-end;
-
-function IsAlphaNumericChar(ch: WideChar): boolean;
-begin
-  Result := (IsAlphaChar(ch) or IsNumericChar(ch));
-end;
-
-function IsPunctuationChar(ch: WideChar): boolean;
-begin
-  // TODO: add chars outside of Latin1 basic (0..127)?
-  case ch of
-    ' '..'/',':'..'@','['..'`','{'..'~':
-      Result := true;
-    else
-      Result := false;
-  end;
-end;
-
-function IsControlChar(ch: WideChar): boolean;
-begin
-  case ch of
-    #0..#31,
-    #127..#159:
-      Result := true;
-    else
-      Result := false;
-  end;
-end;
-
-end.
+unit UCommon;
+
+interface
+
+{$IFDEF FPC}
+  {$MODE Delphi}
+{$ENDIF}
+
+{$I switches.inc}
+
+uses
+  SysUtils,
+  Classes,
+  Messages,
+{$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.