Add use_global for fs_remove and opening for writing

README.md

@@ -9,6 +9,9 @@ Detours and reimplements the entire GSC VM + compiler.
 
 Adds custom GSC functions.
 
+# Installation
+Move the `t4sp-server-plugin.dll` to `%LOCALAPPDATA%\Plutonium\storage\t4\plugins\`, the plugin will be loaded when you start up a dedicated server for Plutonium T4SP.
+
 ## FileIO
 This plugin provides FileIO interface to GSC for reading and writing files, this is exact to [CoD4x's](https://github.com/callofduty4x/CoD4x_Server/blob/master/scriptdocumentation/script_functions_reference.md#file-operations) interface.
 
@@ -17,7 +20,7 @@ However, all reads and writes will take place strictly and only in the `scriptda
 All files will be closed upon GSC restart (map_restart or fast_restart or missionfailed, etc), only a maximum of 10 files may be opened at once.
 
 * `<bool> FS_TestFile(<filename string>)` Returns `true` if the file exists, `false` otherwise.
-* `<bool> FS_Remove(<filename string>)` Deletes the file, return `true` if successful, `false` otherwise.
+* `<bool> FS_Remove(<filename string>, <(optional) use_global bool>)` Deletes the file, return `true` if successful, `false` otherwise. `use_global` will use non mod specific folder.
   ```gsc
   // test to see if "scriptdata/test.txt" file exists
   if (FS_TestFile("test.txt")) // not a typo, all file io will take place inside the "scriptdata" folder
@@ -39,7 +42,7 @@ All files will be closed upon GSC restart (map_restart or fast_restart or missio
   FS_FCloseAll(); // close them all
   ```
 
-* `<int> FS_FOpen(<filename string>, <mode string>)` Tries to open the file, mode must be one of `read`, `write` (clears the file), `append` (appends to the file), returns the filehandle. Will return `0` if failed to open.
+* `<int> FS_FOpen(<filename string>, <mode string>, <(optional) use_global bool>)` Tries to open the file, mode must be one of `read`, `write` (clears the file), `append` (appends to the file), returns the filehandle. Will return `0` if failed to open. `use_global` will use non mod specific folder (only applies to `write` mode).
 * `FS_FClose(<filehandle int>)` Closes the file pointed by the filehandle given, which was returned from `FS_FOpen`.
   ```gsc
   // opens "scriptdata/test.txt", all io will take place inside the "scriptdata" folder
@@ -101,11 +104,12 @@ All files will be closed upon GSC restart (map_restart or fast_restart or missio
     // do something with the filename
     filepath = folder + filename;
   }
+  
+* `<int> FS_Length(<filehandle int>)` Returns the length in bytes of the open'd file.
+* `<int> FS_GetSeek(<filehandle int>)` Returns the seek of the open'd file (only for reading).
+* `<int> FS_Seek(<filehandle int>, <seek int>)` Sets the seek of the open'd file (only for reading).
   ```
 
-# Installation
-Move the `t4sp-server-plugin.dll` to `%LOCALAPPDATA%\Plutonium\storage\t4\plugins\`, the plugin will be loaded when you start up a dedicated server for Plutonium T4SP.
-
 # Credits
 - momo5502 (https://github.com/momo5502)
 - xensik (https://github.com/xensik/gsc-tool)

src/component/fileio.cpp

@@ -66,7 +66,7 @@ namespace fileio
 			return path.starts_with("scriptdata/") ? path : "scriptdata/" + path;
 		}
 
-		std::filesystem::path build_full_path(const std::string& path)
+		std::filesystem::path build_full_path(const std::string& path, bool use_global)
 		{
 			static game::dvar_s* fs_localAppData = nullptr;
 			static game::dvar_s* fs_gamedir = nullptr;
@@ -81,7 +81,7 @@ namespace fileio
 				fs_gamedir = game::Dvar_FindVar("fs_game");
 			}
 
-			return std::filesystem::path(fs_localAppData->current.string) / (*fs_gamedir->current.string ? fs_gamedir->current.string : "raw") / path;
+			return std::filesystem::path(fs_localAppData->current.string) / (!use_global && *fs_gamedir->current.string ? fs_gamedir->current.string : "raw") / path;
 		}
 
 		void free_scr_fh(scr_fh_t& scr_fh)
@@ -237,7 +237,7 @@ namespace fileio
 					}
 					else if (mode == "write"s || mode == "append"s)
 					{
-						auto full_path = build_full_path(fpath);
+						auto full_path = build_full_path(fpath, game::Scr_GetNumParam(game::SCRIPTINSTANCE_SERVER) >= 3 && game::Scr_GetType(game::SCRIPTINSTANCE_SERVER, 2) == game::VAR_INTEGER && game::Scr_GetInt(game::SCRIPTINSTANCE_SERVER, 2));
 
 						if (!utils::io::write_file(full_path.string(), "", (mode == "append"s)))
 						{
@@ -384,10 +384,48 @@ namespace fileio
 					game::Scr_AddInt(game::SCRIPTINSTANCE_SERVER, 1);
 				});
 
+			gsc::function::add("fs_length", []()
+				{
+					auto fh = scr_get_fh();
+
+					if (scr_fhs[fh].type == scr_fh_type_e::UNUSED)
+					{
+						game::Scr_ParamError(0, game::SCRIPTINSTANCE_SERVER, "File not opened");
+					}
+
+					game::Scr_AddInt(game::SCRIPTINSTANCE_SERVER, scr_fhs[fh].file_length);
+				});
+
+			gsc::function::add("fs_getseek", []()
+				{
+					auto fh = scr_get_fh();
+
+					// write seek would require completely redoing how we write files...
+					if (scr_fhs[fh].type != scr_fh_type_e::READ)
+					{
+						game::Scr_ParamError(0, game::SCRIPTINSTANCE_SERVER, "File not opened for reading");
+					}
+
+					game::Scr_AddInt(game::SCRIPTINSTANCE_SERVER, scr_fhs[fh].seek);
+				});
+
+			gsc::function::add("fs_seek", []()
+				{
+					auto fh = scr_get_fh();
+
+					if (scr_fhs[fh].type != scr_fh_type_e::READ)
+					{
+						game::Scr_ParamError(0, game::SCRIPTINSTANCE_SERVER, "File not opened for reading");
+					}
+
+					scr_fhs[fh].seek = std::clamp(game::Scr_GetInt(game::SCRIPTINSTANCE_SERVER, 1), 0, scr_fhs[fh].file_length);
+					game::Scr_AddInt(game::SCRIPTINSTANCE_SERVER, 1);
+				});
+
 			gsc::function::add("fs_remove", []()
 				{
 					auto fpath = build_base_path(game::Scr_GetString(0, game::SCRIPTINSTANCE_SERVER));
-					auto full_path = build_full_path(fpath);
+					auto full_path = build_full_path(fpath, game::Scr_GetNumParam(game::SCRIPTINSTANCE_SERVER) >= 2 && game::Scr_GetType(game::SCRIPTINSTANCE_SERVER, 1) == game::VAR_INTEGER && game::Scr_GetInt(game::SCRIPTINSTANCE_SERVER, 1));
 
 					if (!utils::io::remove_file(full_path.string()))
 					{