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unit UPlatform;
// Comment by Eddie:
// This unit defines an interface for platform specific utility functions.
// The Interface is implemented in separate files for each platform:
// UPlatformWindows, UPlatformLinux and UPlatformWindows.
interface
{$IFDEF FPC}
{$MODE Delphi}
{$ENDIF}
{$I switches.inc}
uses Classes;
type
TDirectoryEntry = Record
Name : WideString;
IsDirectory : Boolean;
IsFile : Boolean;
end;
TDirectoryEntryArray = Array of TDirectoryEntry;
IPlatform = Interface
['{63A5EBC3-3F4D-4F23-8DFB-B5165FCA23DF}']
Function DirectoryFindFiles(Dir, Filter : WideString; ReturnAllSubDirs : Boolean) : TDirectoryEntryArray;
function TerminateIfAlreadyRunning(var WndTitle : String) : Boolean;
function FindSongFile(Dir, Mask: widestring): widestring;
procedure Halt;
function GetLogPath : WideString;
function GetGameSharedPath : WideString;
function GetGameUserPath : WideString;
end;
function Platform : IPlatform;
implementation
uses
SysUtils,
{$IFDEF MSWINDOWS}
UPlatformWindows;
{$ENDIF}
{$IFDEF LINUX}
UPlatformLinux;
{$ENDIF}
{$IFDEF DARWIN}
UPlatformMacOSX;
{$ENDIF}
// I have modified it to use the Platform_singleton in this location ( in the implementaiton )
// so that this variable can NOT be overwritten from anywhere else in the application.
// the accessor function platform, emulates all previous calls to work the same way.
var
Platform_singleton : IPlatform;
function Platform : IPlatform;
begin
result := Platform_singleton;
end;
initialization
{$IFDEF MSWINDOWS}
Platform_singleton := TPlatformWindows.Create;
{$ENDIF}
{$IFDEF LINUX}
Platform_singleton := TPlatformLinux.Create;
{$ENDIF}
{$IFDEF DARWIN}
Platform_singleton := TPlatformMacOSX.Create;
{$ENDIF}
finalization
Platform_singleton := nil;
end.
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