From 17964599538cab2edbf5bbbdac52171b9917670a Mon Sep 17 00:00:00 2001
From: Hamdi <hamdi2050@live.com>
Date: Sat, 11 Feb 2023 00:03:53 +0000
Subject: [PATCH] Add SV_AllowPhysent hook (#951)

* Add SV_AllowPhysent hook
---
 rehlds/engine/sv_user.cpp         | 13 +++++++++++++
 rehlds/public/rehlds/rehlds_api.h |  7 ++++++-
 rehlds/rehlds/rehlds_api_impl.cpp |  4 ++++
 rehlds/rehlds/rehlds_api_impl.h   |  6 ++++++
 rehlds/version/version.h          |  2 +-
 5 files changed, 30 insertions(+), 2 deletions(-)

diff --git a/rehlds/engine/sv_user.cpp b/rehlds/engine/sv_user.cpp
index 5e2c001..0912cc0 100644
--- a/rehlds/engine/sv_user.cpp
+++ b/rehlds/engine/sv_user.cpp
@@ -511,6 +511,14 @@ void SV_CopyEdictToPhysent(physent_t *pe, int e, edict_t *check)
 	pe->vuser4[2] = check->v.vuser4[2];
 }
 
+bool EXT_FUNC SV_AllowPhysent_mod(edict_t* check, edict_t* sv_player) {
+	return true;
+}
+
+bool SV_AllowPhysent(edict_t* check, edict_t* sv_player) {
+	return g_RehldsHookchains.m_SV_AllowPhysent.callChain(SV_AllowPhysent_mod, check, sv_player);
+}
+
 void SV_AddLinksToPM_(areanode_t *node, float *pmove_mins, float *pmove_maxs)
 {
 	struct link_s *l;
@@ -547,6 +555,11 @@ void SV_AddLinksToPM_(areanode_t *node, float *pmove_mins, float *pmove_maxs)
 		if (check->v.solid != SOLID_BSP && check->v.solid != SOLID_BBOX && check->v.solid != SOLID_SLIDEBOX && check->v.solid != SOLID_NOT)
 			continue;
 
+		// Apply our own custom checks
+		if (!SV_AllowPhysent(check, sv_player)) {
+			continue;
+		}
+
 		e = NUM_FOR_EDICT(check);
 		ve = &pmove->visents[pmove->numvisent];
 		pmove->numvisent = pmove->numvisent + 1;
diff --git a/rehlds/public/rehlds/rehlds_api.h b/rehlds/public/rehlds/rehlds_api.h
index debea33..bc83581 100644
--- a/rehlds/public/rehlds/rehlds_api.h
+++ b/rehlds/public/rehlds/rehlds_api.h
@@ -37,7 +37,7 @@
 #include "pr_dlls.h"
 
 #define REHLDS_API_VERSION_MAJOR 3
-#define REHLDS_API_VERSION_MINOR 12
+#define REHLDS_API_VERSION_MINOR 13
 
 //Steam_NotifyClientConnect hook
 typedef IHookChain<qboolean, IGameClient*, const void*, unsigned int> IRehldsHook_Steam_NotifyClientConnect;
@@ -255,6 +255,10 @@ typedef IVoidHookChainRegistry<resourcetype_t, const char *, int, unsigned char,
 typedef IVoidHookChain<const char *> IRehldsHook_SV_ClientPrintf;
 typedef IVoidHookChainRegistry<const char *> IRehldsHookRegistry_SV_ClientPrintf;
 
+//SV_AllowPhysent hook
+typedef IHookChain<bool, edict_t*, edict_t*> IRehldsHook_SV_AllowPhysent;
+typedef IHookChainRegistry<bool, edict_t*, edict_t*> IRehldsHookRegistry_SV_AllowPhysent;
+
 class IRehldsHookchains {
 public:
 	virtual ~IRehldsHookchains() { }
@@ -313,6 +317,7 @@ public:
 	virtual IRehldsHookRegistry_EV_Precache* EV_Precache() = 0;
 	virtual IRehldsHookRegistry_SV_AddResource* SV_AddResource() = 0;
 	virtual IRehldsHookRegistry_SV_ClientPrintf* SV_ClientPrintf() = 0;
+	virtual IRehldsHookRegistry_SV_AllowPhysent* SV_AllowPhysent() = 0;
 };
 
 struct RehldsFuncs_t {
diff --git a/rehlds/rehlds/rehlds_api_impl.cpp b/rehlds/rehlds/rehlds_api_impl.cpp
index 5a41c1e..d186220 100644
--- a/rehlds/rehlds/rehlds_api_impl.cpp
+++ b/rehlds/rehlds/rehlds_api_impl.cpp
@@ -879,6 +879,10 @@ IRehldsHookRegistry_SV_ClientPrintf* CRehldsHookchains::SV_ClientPrintf(){
 	return &m_SV_ClientPrintf;
 }
 
+IRehldsHookRegistry_SV_AllowPhysent* CRehldsHookchains::SV_AllowPhysent() {
+	return &m_SV_AllowPhysent;
+}
+
 int EXT_FUNC CRehldsApi::GetMajorVersion()
 {
 	return REHLDS_API_VERSION_MAJOR;
diff --git a/rehlds/rehlds/rehlds_api_impl.h b/rehlds/rehlds/rehlds_api_impl.h
index 28b1c3e..699bd16 100644
--- a/rehlds/rehlds/rehlds_api_impl.h
+++ b/rehlds/rehlds/rehlds_api_impl.h
@@ -250,6 +250,10 @@ typedef IVoidHookChainRegistryImpl<resourcetype_t, const char*, int, unsigned ch
 typedef IVoidHookChainImpl<const char*> CRehldsHook_SV_ClientPrintf;
 typedef IVoidHookChainRegistryImpl<const char*> CRehldsHookRegistry_SV_ClientPrintf;
 
+//SV_AllowPhysent hook
+typedef IHookChainImpl<bool, edict_t*, edict_t*> CRehldsHook_SV_AllowPhysent;
+typedef IHookChainRegistryImpl<bool, edict_t*, edict_t*> CRehldsHookRegistry_SV_AllowPhysent;
+
 class CRehldsHookchains : public IRehldsHookchains {
 public:
 	CRehldsHookRegistry_Steam_NotifyClientConnect m_Steam_NotifyClientConnect;
@@ -306,6 +310,7 @@ public:
 	CRehldsHookRegistry_EV_Precache m_EV_Precache;
 	CRehldsHookRegistry_SV_AddResource m_SV_AddResource;
 	CRehldsHookRegistry_SV_ClientPrintf m_SV_ClientPrintf;
+	CRehldsHookRegistry_SV_AllowPhysent m_SV_AllowPhysent;
 
 public:
 	EXT_FUNC virtual IRehldsHookRegistry_Steam_NotifyClientConnect* Steam_NotifyClientConnect();
@@ -362,6 +367,7 @@ public:
 	EXT_FUNC virtual IRehldsHookRegistry_EV_Precache* EV_Precache();
 	EXT_FUNC virtual IRehldsHookRegistry_SV_AddResource* SV_AddResource();
 	EXT_FUNC virtual IRehldsHookRegistry_SV_ClientPrintf* SV_ClientPrintf();
+	EXT_FUNC virtual IRehldsHookRegistry_SV_AllowPhysent* SV_AllowPhysent();
 };
 
 extern CRehldsHookchains g_RehldsHookchains;
diff --git a/rehlds/version/version.h b/rehlds/version/version.h
index 9c1ad71..55a454b 100644
--- a/rehlds/version/version.h
+++ b/rehlds/version/version.h
@@ -6,5 +6,5 @@
 #pragma once
 
 #define VERSION_MAJOR		3
-#define VERSION_MINOR		12
+#define VERSION_MINOR		13
 #define VERSION_MAINTENANCE	0