From f50509abf0ce94155e99634ca318d0f12ca43f92 Mon Sep 17 00:00:00 2001
From: David Anderson <dvander@alliedmods.net>
Date: Tue, 22 Jan 2008 17:04:59 +0000
Subject: [PATCH] added amb1378 - FileExists() for valve fs

--HG--
extra : convert_revision : svn%3A39bc706e-5318-0410-9160-8a85361fbb7c/trunk%401860
---
 core/smn_filesystem.cpp   | 5 +++++
 plugins/include/files.inc | 6 +++++-
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/core/smn_filesystem.cpp b/core/smn_filesystem.cpp
index eeec4886..124371a4 100644
--- a/core/smn_filesystem.cpp
+++ b/core/smn_filesystem.cpp
@@ -288,6 +288,11 @@ static cell_t sm_FileExists(IPluginContext *pContext, const cell_t *params)
 		return 0;
 	}
 
+	if (params[0] >= 2 && params[2] == 1)
+	{
+		return basefilesystem->FileExists(name) ? 1 : 0;
+	}
+
 	char realpath[PLATFORM_MAX_PATH];
 	g_SourceMod.BuildPath(Path_Game, realpath, sizeof(realpath), "%s", name);
 #ifdef PLATFORM_WINDOWS
diff --git a/plugins/include/files.inc b/plugins/include/files.inc
index e8767e66..20f3424c 100644
--- a/plugins/include/files.inc
+++ b/plugins/include/files.inc
@@ -302,9 +302,13 @@ native FilePosition(Handle:file);
  * Checks if a file exists.
  *
  * @param path			Path to the file.
+ * @param use_valve_fs	If true, the Valve file system will be used instead.
+ *						This can be used to check for the existance of files 
+ *						inside GCFs or the game cache, rather than solely files 
+ *						that are on disk.
  * @return				True if the file exists, false otherwise.
  */
-native bool:FileExists(const String:path[]);
+native bool:FileExists(const String:path[], bool:use_valve_fs=false);
 
 /**
  * Renames a file.