From 0aaf89da22798de9fccc92060b0f4a8b9342af85 Mon Sep 17 00:00:00 2001
From: sirdigbot <sirdigbot@users.noreply.github.com>
Date: Fri, 31 Mar 2023 11:57:06 +1100
Subject: [PATCH] Expose cache-clearing methods to extensions

---
 core/HalfLife2.cpp    | 10 ++++++++++
 core/HalfLife2.h      |  2 ++
 public/IGameHelpers.h | 17 ++++++++++++++++-
 3 files changed, 28 insertions(+), 1 deletion(-)

diff --git a/core/HalfLife2.cpp b/core/HalfLife2.cpp
index b7bb3fe30..772517573 100644
--- a/core/HalfLife2.cpp
+++ b/core/HalfLife2.cpp
@@ -1592,3 +1592,13 @@ uint64_t CHalfLife2::GetServerSteamId64() const
 
 	return 1ULL;
 }
+
+void CHalfLife2::RemoveDataTableCache(datamap_t *pMap)
+{
+	this->ClearDataTableCache(pMap);
+}
+
+bool CHalfLife2::RemoveSendPropCache(const char *classname)
+{
+	return this->ClearSendPropCache(classname);
+}
diff --git a/core/HalfLife2.h b/core/HalfLife2.h
index c440be331..918db711a 100644
--- a/core/HalfLife2.h
+++ b/core/HalfLife2.h
@@ -258,6 +258,8 @@ public: //IGameHelpers
 	string_t AllocPooledString(const char *pszValue);
 	bool GetServerSteam3Id(char *pszOut, size_t len) const override;
 	uint64_t GetServerSteamId64() const override;
+	void RemoveDataTableCache(datamap_t *pMap);
+	bool RemoveSendPropCache(const char *classname);
 public:
 	void AddToFakeCliCmdQueue(int client, int userid, const char *cmd);
 	void ProcessFakeCliCmdQueue();
diff --git a/public/IGameHelpers.h b/public/IGameHelpers.h
index b05c98d40..14d6ce7bc 100644
--- a/public/IGameHelpers.h
+++ b/public/IGameHelpers.h
@@ -40,7 +40,7 @@
  */
 
 #define SMINTERFACE_GAMEHELPERS_NAME		"IGameHelpers"
-#define SMINTERFACE_GAMEHELPERS_VERSION		11
+#define SMINTERFACE_GAMEHELPERS_VERSION		12
 
 class CBaseEntity;
 class CBaseHandle;
@@ -351,6 +351,21 @@ namespace SourceMod
 		 * @return				64-bit server Steam id.
 		 */
 		virtual uint64_t GetServerSteamId64() const =0;
+
+		/**
+		 * @brief Removes a datamap from the DataTable cache.
+		 *
+		 * @param pMap			datamap_t pointer.
+		 */
+		virtual void RemoveDataTableCache(datamap_t *pMap) =0;
+
+		/**
+		 * @brief Removes a class from the SendProp cache.
+		 *
+		 * @param classname		Entity class name.
+		 * @return				True if cache was found and removed.
+		 */
+		virtual bool RemoveSendPropCache(const char *classname) =0;
 	};
 }