Added cl_show_server_triggers_* cvars (related to plugin PR)

src/common/com_model.h

@@ -13,7 +13,7 @@
 #define STUDIO_EVENTS 2
 
 #define MAX_CLIENTS 32
-#define MAX_EDICTS  900
+#define MAX_EDICTS  2048
 
 #define MAX_MODEL_NAME 64
 #define MAX_MAP_HULLS  4

src/common/const.h

@@ -705,6 +705,7 @@ enum
 	kRenderFxGlowShell, // Glowing Shell
 	kRenderFxClampMinScale, // Keep this sprite from getting very small (SPRITES only!)
 	kRenderFxLightMultiplier, //CTM !!!CZERO added to tell the studiorender that the value in iuser2 is a lightmultiplier
+	kRenderFxTrigger = 241,
 };
 
 typedef unsigned int func_t;

src/game/client/cdll_int.cpp

@@ -284,6 +284,7 @@ int CL_DLLEXPORT HUD_VidInit(void)
 	PM_ResetBHopDetection();
 	CResults::Get().Stop();
 	GetClientVoiceMgr()->VidInit();
+	gHUD.white_sprite = gEngfuncs.pfnSPR_Load("sprites/white.spr");
 
 	return 1;
 }

src/game/client/entity.cpp

@@ -22,6 +22,8 @@ extern IParticleMan *g_pParticleMan;
 
 ConVar r_dynamic_ent_light("r_dynamic_ent_light", "1", FCVAR_BHL_ARCHIVE);
 ConVar cl_hidecorpses("cl_hidecorpses", "0", FCVAR_BHL_ARCHIVE);
+extern ConVar cl_show_server_triggers;
+extern ConVar cl_show_server_triggers_alpha;
 
 void Game_AddObjects(void);
 
@@ -54,6 +56,12 @@ int CL_DLLEXPORT HUD_AddEntity(int type, struct cl_entity_s *ent, const char *mo
 		break;
 	}
 
+	// show triggers that would be transferred from server-side with specific value in renderfx to differ it from other entities
+	// update: there is a new implementation of displaying triggers that allows you to display even when planes is stripped due to optimizations in updated map compiler
+	// so this code will only work if the value 2 is specified in the cvar, but it should not be deleted imo
+	if ((ent->curstate.rendermode == kRenderTransColor) && (ent->curstate.renderfx == kRenderFxTrigger) && (cl_show_server_triggers.GetInt() == 2) && !gHUD.IsTriggerForSinglePlayer(ent->curstate.rendercolor))
+		ent->curstate.renderamt = std::clamp(cl_show_server_triggers_alpha.GetFloat(), 0.0f, 255.0f);
+
 	// hide corpses option
 	if (cl_hidecorpses.GetBool() && ent->curstate.renderfx == kRenderFxDeadPlayer)
 		return 0;

src/game/client/hud.cpp

@@ -135,6 +135,8 @@ ConVar cl_autowepswitch("cl_autowepswitch", "1", FCVAR_BHL_ARCHIVE | FCVAR_USERI
 ConVar cl_righthand("cl_righthand", "0", FCVAR_BHL_ARCHIVE, "If enabled, activates the left-handed mode");
 ConVar cl_viewmodel_fov("cl_viewmodel_fov", "0", FCVAR_BHL_ARCHIVE, "Sets the field-of-view for the viewmodel");
 ConVar showtriggers("showtriggers", "0", 0, "Shows trigger brushes");
+ConVar cl_show_server_triggers("cl_show_server_triggers", "0", FCVAR_BHL_ARCHIVE, "Shows server triggers if transmitted in special way");
+ConVar cl_show_server_triggers_alpha("cl_show_server_triggers_alpha", "120", FCVAR_BHL_ARCHIVE);
 
 ConVar aghl_version("aghl_version", APP_VERSION, 0, "BugfixedHL version");
 ConVar aghl_supports("aghl_supports", "0", 0, "Bitfield of features supported by this client");
@@ -605,6 +607,26 @@ void CHud::SaveEngineVersion()
 	}
 }
 
+bool CHud::IsTriggerForSinglePlayer(color24 rendercolor)
+{
+	auto r = rendercolor.r;
+	auto g = rendercolor.g;
+	auto b = rendercolor.b;
+
+	if ((r == 128) && (g == 128) && (b == 128)) // trigger_autosave
+		return true;
+	else if ((r == 79) && (g == 255) && (b == 10)) // trigger_changelevel
+		return true;
+	else if ((r == 150) && (g == 75) && (b == 0)) // trigger_endsection
+		return true;
+	else if ((r == 238) && (g == 154) && (b == 77)) // trigger_monsterjump
+		return true;
+	else if ((r == 203) && (g == 103) && (b == 212)) // trigger_transition
+		return true;
+
+	return false;
+}
+
 bool CHud::IsAG()
 {
 	return m_bIsAg;

src/game/client/hud.h

@@ -137,6 +137,8 @@ class CHud
 
 	CRainbow m_Rainbow;
 
+	HSPRITE white_sprite = 0;
+
 	//-----------------------------------------------------
 	// HUD exports
 	//-----------------------------------------------------
@@ -148,6 +150,7 @@ class CHud
 	void Shutdown();
 	void ApplyViewportSchemeSettings(vgui2::IScheme *pScheme);
 	void SaveEngineVersion();
+	bool IsTriggerForSinglePlayer(color24 rendercolor);
 
 	/**
 	 * Returns whether DLL is installed onto AG mod.

src/game/client/tri.cpp

@@ -22,9 +22,59 @@
 #include "particleman.h"
 #include "tri.h"
 
+#include "com_model.h"
+
 CSysModule *g_hParticleManModule = NULL;
 IParticleMan *g_pParticleMan = NULL;
 
+extern ConVar cl_show_server_triggers;
+extern ConVar cl_show_server_triggers_alpha;
+
+void DivideRGBABy255(float &r, float &g, float &b, float &a)
+{
+	r /= 255.0f;
+	g /= 255.0f;
+	b /= 255.0f;
+	a /= 255.0f;
+}
+
+void DrawAACuboid(triangleapi_s *pTriAPI, Vector corner1, Vector corner2)
+{
+	pTriAPI->Begin(TRI_QUADS);
+
+	pTriAPI->Vertex3f(corner1.x, corner1.y, corner1.z);
+	pTriAPI->Vertex3f(corner1.x, corner2.y, corner1.z);
+	pTriAPI->Vertex3f(corner2.x, corner2.y, corner1.z);
+	pTriAPI->Vertex3f(corner2.x, corner1.y, corner1.z);
+
+	pTriAPI->Vertex3f(corner1.x, corner1.y, corner1.z);
+	pTriAPI->Vertex3f(corner1.x, corner1.y, corner2.z);
+	pTriAPI->Vertex3f(corner1.x, corner2.y, corner2.z);
+	pTriAPI->Vertex3f(corner1.x, corner2.y, corner1.z);
+
+	pTriAPI->Vertex3f(corner1.x, corner1.y, corner1.z);
+	pTriAPI->Vertex3f(corner2.x, corner1.y, corner1.z);
+	pTriAPI->Vertex3f(corner2.x, corner1.y, corner2.z);
+	pTriAPI->Vertex3f(corner1.x, corner1.y, corner2.z);
+
+	pTriAPI->Vertex3f(corner2.x, corner2.y, corner2.z);
+	pTriAPI->Vertex3f(corner1.x, corner2.y, corner2.z);
+	pTriAPI->Vertex3f(corner1.x, corner1.y, corner2.z);
+	pTriAPI->Vertex3f(corner2.x, corner1.y, corner2.z);
+
+	pTriAPI->Vertex3f(corner2.x, corner2.y, corner2.z);
+	pTriAPI->Vertex3f(corner2.x, corner1.y, corner2.z);
+	pTriAPI->Vertex3f(corner2.x, corner1.y, corner1.z);
+	pTriAPI->Vertex3f(corner2.x, corner2.y, corner1.z);
+
+	pTriAPI->Vertex3f(corner2.x, corner2.y, corner2.z);
+	pTriAPI->Vertex3f(corner2.x, corner2.y, corner1.z);
+	pTriAPI->Vertex3f(corner1.x, corner2.y, corner1.z);
+	pTriAPI->Vertex3f(corner1.x, corner2.y, corner2.z);
+
+	pTriAPI->End();
+}
+
 //---------------------------------------------------
 // Particle Manager
 //---------------------------------------------------
@@ -86,6 +136,44 @@ void CL_DLLEXPORT HUD_DrawNormalTriangles(void)
 void RunEventList(void);
 #endif
 
+void DrawServerTriggers()
+{
+	if ((cl_show_server_triggers.GetBool()) && (cl_show_server_triggers.GetInt() != 2))
+	{
+		for (int e = 0; e < MAX_EDICTS; ++e)
+		{
+			cl_entity_t* ent = gEngfuncs.GetEntityByIndex(e);
+			if (ent)
+			{
+				if (ent->model)
+				{
+					if ((ent->curstate.rendermode == kRenderTransColor) && (ent->curstate.renderfx == kRenderFxTrigger))
+					{
+						color24 colors = ent->curstate.rendercolor;
+						if (!gHUD.IsTriggerForSinglePlayer(colors))
+						{
+							gEngfuncs.pTriAPI->RenderMode(kRenderTransAdd);
+							gEngfuncs.pTriAPI->CullFace(TRI_NONE);
+
+							float r = colors.r, g = colors.g, b = colors.b, a = std::clamp(cl_show_server_triggers_alpha.GetFloat(), 0.0f, 255.0f);
+							DivideRGBABy255(r, g, b, a);
+							gEngfuncs.pTriAPI->Color4f(r, g, b, a);
+
+							Vector mins = ent->curstate.mins;
+							Vector maxs = ent->curstate.maxs;
+							Vector origin = ent->curstate.origin;
+							Vector absmin = origin + mins;
+							Vector absmax = origin + maxs;
+
+							DrawAACuboid(gEngfuncs.pTriAPI, absmin, absmax);
+						}
+					}
+				}
+			}
+		}
+	}
+}
+
 /*
 =================
 HUD_DrawTransparentTriangles
@@ -103,4 +191,14 @@ void CL_DLLEXPORT HUD_DrawTransparentTriangles(void)
 
 	if (g_pParticleMan)
 		g_pParticleMan->Update();
+
+	if (gHUD.white_sprite == 0)
+		return;
+
+	if (gEngfuncs.pTriAPI->SpriteTexture(const_cast<model_s*>(gEngfuncs.GetSpritePointer(gHUD.white_sprite)), 0))
+	{
+		DrawServerTriggers();
+
+		gEngfuncs.pTriAPI->RenderMode(kRenderNormal);
+	}
 }