feat: no viewmodel shadows

src/Cheats.cpp

@@ -46,6 +46,7 @@ Variable sar_patch_bhop("sar_patch_bhop", "0", 0, 1, "Patches bhop by limiting w
 Variable sar_patch_cfg("sar_patch_cfg", "0", 0, 1, "Patches Crouch Flying Glitch.\n");
 Variable sar_prevent_ehm("sar_prevent_ehm", "0", 0, 1, "Prevents Entity Handle Misinterpretation (EHM) from happening.\n");
 Variable sar_disable_weapon_sway("sar_disable_weapon_sway", "0", 0, 1, "Disables the viewmodel lagging behind.\n");
+Variable sar_disable_viewmodel_shadows("sar_disable_viewmodel_shadows", "0", 0, 1, "Disables the shadows on the viewmodel.\n");
 
 Variable sv_laser_cube_autoaim;
 Variable ui_loadingscreen_transition_time;
@@ -290,6 +291,7 @@ void Cheats::Init() {
 	sar_disable_challenge_stats_hud.UniqueFor(SourceGame_Portal2);
 
 	sar_disable_weapon_sway.UniqueFor(SourceGame_Portal2);
+	sar_disable_viewmodel_shadows.UniqueFor(SourceGame_Portal2);
 
 	sar_workshop.UniqueFor(SourceGame_Portal2 | SourceGame_ApertureTag);
 	sar_workshop_update.UniqueFor(SourceGame_Portal2 | SourceGame_ApertureTag);

src/Cheats.hpp

@@ -28,6 +28,7 @@ extern Variable sar_patch_bhop;
 extern Variable sar_patch_cfg;
 extern Variable sar_prevent_ehm;
 extern Variable sar_disable_weapon_sway;
+extern Variable sar_disable_viewmodel_shadows;
 
 extern Variable sv_laser_cube_autoaim;
 extern Variable ui_loadingscreen_transition_time;

src/Modules/Client.cpp

@@ -66,6 +66,7 @@ REDECL(Client::ProcessMovement);
 REDECL(Client::DrawTranslucentRenderables);
 REDECL(Client::DrawOpaqueRenderables);
 REDECL(Client::CalcViewModelLag);
+REDECL(Client::AddShadowToReceiver);
 
 CMDECL(Client::GetAbsOrigin, Vector, m_vecAbsOrigin);
 CMDECL(Client::GetAbsAngles, QAngle, m_angAbsRotation);
@@ -494,6 +495,23 @@ DETOUR_T(void, Client::CalcViewModelLag, Vector &origin, QAngle &angles, QAngle
 }
 Hook g_CalcViewModelLagHook(&Client::CalcViewModelLag_Hook);
 
+extern Hook g_AddShadowToReceiverHook;
+DETOUR_T(void, Client::AddShadowToReceiver, unsigned short handle, void *pRenderable, int type) {
+	if (sar_disable_viewmodel_shadows.GetBool()) {
+		// IClientRenderable::GetModel()
+		using _GetModel = model_t *(__rescall *)(void *);
+		model_t *model = Memory::VMT<_GetModel>(pRenderable, Offsets::GetModel)(pRenderable);
+
+		if (!strcmp(model->szPathName, "models/weapons/v_portalgun.mdl"))
+			return;
+	}
+
+	g_AddShadowToReceiverHook.Disable();
+	Client::AddShadowToReceiver(thisptr, handle, pRenderable, type);
+	g_AddShadowToReceiverHook.Enable();
+}
+Hook g_AddShadowToReceiverHook(&Client::AddShadowToReceiver_Hook);
+
 bool Client::Init() {
 	bool readJmp = false;
 
@@ -619,6 +637,16 @@ bool Client::Init() {
 
 	g_CalcViewModelLagHook.SetFunc(Client::CalcViewModelLag);
 
+	if (sar.game->Is(SourceGame_Portal2)) {
+#ifdef _WIN32
+		Client::AddShadowToReceiver = (decltype(Client::AddShadowToReceiver))Memory::Scan(client->Name(), "55 8B EC 51 53 56 57 0F B7 7D 08 69 FF ? ? ? ? 03 79 2C 51 89 4D FC 8B 0F 8B C4 89 08 8B 0D ? ? ? ? E8 ? ? ? ? 8B 75 0C 8B D8 3B DE 0F 84 ? ? ? ?");
+#else
+		Client::AddShadowToReceiver = (decltype(Client::AddShadowToReceiver))Memory::Scan(client->Name(), "55 89 E5 57 56 53 83 EC 44 8B 45 0C 8B 5D 08 8B 55 14 8B 75 10 89 45 C8 0F B7 C0 8B 7B 2C 89 45 D4 69 C0 ? ? ? ? 89 55 CC 89 45 C4 01 C7 8B 07 89 45 E4 8D 45 E4 50 FF 35 ? ? ? ? E8 ? ? ? ? 83 C4 10 89 45 D0 39 F0 74 12");
+#endif
+	}
+
+	g_AddShadowToReceiverHook.SetFunc(Client::AddShadowToReceiver);
+
 	// Get at gamerules
 	{
 		uintptr_t cbk = (uintptr_t)Command("+mouse_menu").ThisPtr()->m_pCommandCallback;

src/Modules/Client.hpp

@@ -69,6 +69,9 @@ class Client : public Module {
 	void OpenChat();
 
 public:
+	// CClientShadowMgr::AddShadowToReceiver
+	DECL_DETOUR_T(void, AddShadowToReceiver, unsigned short handle, void *pRenderable, int type);
+
 	// CBaseViewModel::CalcViewModelLag
 	DECL_DETOUR_T(void, CalcViewModelLag, Vector &origin, QAngle &angles, QAngle &original_angles);
 

src/OffsetsData.hpp

@@ -253,6 +253,9 @@ OFFSET_DEFAULT(GetSearchPath, 16, 16)
 // CGameRules
 OFFSET_DEFAULT(IsMultiplayer, 33, 34)
 
+// IClientRenderable
+OFFSET_DEFAULT(GetModel, 8, 9)
+
 // Others
 OFFSET_DEFAULT(tickcount, 95, 64)
 OFFSET_DEFAULT(interval_per_tick, 65, 58)

src/Utils/SDK/ICollideable.hpp

@@ -19,7 +19,16 @@ enum SolidType_t {
 #define FSOLID_NOT_STANDABLE 0x10
 #define FSOLID_VOLUME_CONTENTS 0x20
 
-class model_t;
+struct model_t {
+	void *fnHandle;
+	char szPathName[260];
+	int nLoadFlags;
+	int nServerCount;
+	int type;
+	int flags;
+	Vector mins, maxs;
+	float radius;
+};
 class IClientUnknown;
 class IPhysicsObject;
 class CPhysCollide;