From 4b89862452e865d1bde7ec726f288e966a47f291 Mon Sep 17 00:00:00 2001
From: jenz <jenz>
Date: Mon, 8 Jun 2026 23:07:13 +0200
Subject: [PATCH] probably a bit cheaper calculationwise

---
 .../scripting/RenderDistance.sp               | 85 ++++++++++---------
 1 file changed, 46 insertions(+), 39 deletions(-)

diff --git a/RenderDistance_webclient/scripting/RenderDistance.sp b/RenderDistance_webclient/scripting/RenderDistance.sp
index 7bc687e..e2861be 100644
--- a/RenderDistance_webclient/scripting/RenderDistance.sp
+++ b/RenderDistance_webclient/scripting/RenderDistance.sp
@@ -15,15 +15,32 @@ static const char entityList[][] = { "env_entity_igniter", "env_explosion", "env
 									"info_player_counterterrorist", "info_player_terrorist", "infodecal", \
 									"item_assaultsuit", "item_defuser", "item_kevlar", \
 									"light", "light_environment", "light_spot", "move_rope", "path_track", "planted_c4", \
-									"point_viewcontrol", "shadow_control", "vgui_screen", "worldspawn"};
+									"point_viewcontrol", "shadow_control", "vgui_screen", "func_tracktrain", "worldspawn", \
+                                    "func_tanktrain"};
 
-bool bEnabled[MAXPLAYERS + 1],
-	bBind[MAXPLAYERS + 1],
-	bHolding[MAXPLAYERS + 1],
-	bDontRenderFire[MAXPLAYERS + 1];
+bool bEnabled[MAXPLAYERS + 1];
 	
-int iDistance[MAXPLAYERS + 1],
-	iFlameEntity = -1;
+int iDistance[MAXPLAYERS + 1];
+
+float g_fClientOrigin[MAXPLAYERS + 1][3];
+
+public void OnPluginStart()
+{
+    // Run the cache timer every 0.5 seconds globally
+    CreateTimer(0.5, Timer_CacheOrigins, _, TIMER_REPEAT);
+}
+
+public Action Timer_CacheOrigins(Handle timer)
+{
+    for (int i = 1; i <= MaxClients; i++)
+    {
+        if (IsClientConnected(i) && IsClientInGame(i) && !IsFakeClient(i))
+        {
+            GetClientAbsOrigin(i, g_fClientOrigin[i]);
+        }
+    }
+    return Plugin_Continue;
+}
 	
 public Plugin myinfo = 
 {
@@ -37,9 +54,6 @@ public Plugin myinfo =
 public void OnClientAuthorized(int client, const char[] auth)
 {
 	bEnabled[client] = false;
-	bBind[client] = false;
-	bHolding[client] = false;
-	bDontRenderFire[client] = false;
 	iDistance[client] = 800;
 
     char sIP[32];
@@ -59,12 +73,7 @@ public void OnEntityCreated(int entity, const char[] classname)
 {
 	bool hook = false;
 
-	if (!strcmp(classname, "entityflame"))
-	{
-		iFlameEntity = EntIndexToEntRef(entity);
-		hook = true;
-	}
-	else if (!strncmp(classname, "prop_", 5))
+	if (!strncmp(classname, "prop_", 5))
 	{
 		hook = true;
 	}
@@ -86,37 +95,35 @@ public void OnEntityCreated(int entity, const char[] classname)
     }
 }
 
-bool bFoundEntity[MAXPLAYERS + 1];
-int iSearchEntity[MAXPLAYERS + 1];
-
-public bool EnumerateSphere(int entity, any client)
-{
-    if (entity == iSearchEntity[client])
-    {
-        bFoundEntity[client] = true;
-        return false; // Stop enumerating early
-    }
-    return true; // Keep enumerating
-}
-
 public Action DoTransmit(int entity, int client)
 {
-    if (bDontRenderFire[client] && entity == EntRefToEntIndex(iFlameEntity))
-        return Plugin_Handled;
-
-    if (IsFakeClient(client) || !bEnabled[client] || (bBind[client] && !bHolding[client]))
+    if (IsFakeClient(client) || !bEnabled[client])
         return Plugin_Continue;
 
     if (GetEdictFlags(entity) & FL_EDICT_ALWAYS)
         SetEdictFlags(entity, GetEdictFlags(entity) ^ FL_EDICT_ALWAYS);
 
-    static float vec[3];
-    GetClientAbsOrigin(client, vec);
+    // Get Entity Origin
+    static float entVec[3];
+    if (HasEntProp(entity, Prop_Send, "m_vecOrigin"))
+    {
+        GetEntPropVector(entity, Prop_Send, "m_vecOrigin", entVec);
+    }
+    else
+    {
+        return Plugin_Continue; // If it doesnt have an origin, let it render safely
+    }
 
-    iSearchEntity[client] = entity;
-    bFoundEntity[client] = false;
+    // Use GetVectorDistance with UseSquared=true (avoids an expensive Square Root calculation)
+    float maxDist = float(iDistance[client]);
+    float distanceSq = ((g_fClientOrigin[client][0] - entVec[0]) * (g_fClientOrigin[client][0] - entVec[0])) +
+                       ((g_fClientOrigin[client][1] - entVec[1]) * (g_fClientOrigin[client][1] - entVec[1])) +
+                       ((g_fClientOrigin[client][2] - entVec[2]) * (g_fClientOrigin[client][2] - entVec[2]));
 
-    TR_EnumerateEntitiesSphere(vec, float(iDistance[client]), PARTITION_SOLID_EDICTS | PARTITION_TRIGGER_EDICTS | PARTITION_NON_STATIC_EDICTS, EnumerateSphere, client);
+    if (distanceSq > (maxDist * maxDist))
+    {
+        return Plugin_Handled; // Out of range, hide it from the software renderer!
+    }
 
-    return bFoundEntity[client] ? Plugin_Continue : Plugin_Handled;
+    return Plugin_Continue;
 }