From 13e25cfe6af960787c999fd9f53a5863a57a7ca0 Mon Sep 17 00:00:00 2001
From: Inusaito Sayori <Inusaito@gmail.com>
Date: Thu, 10 Oct 2013 04:29:12 -0400
Subject: [PATCH] Feature Request: Add MiniMapPrimMaxAltitudeDelta and
 MiniMapPrimMaxAltitudeDeltaOwn to debug settings for users to configure how
 much altitude difference prims can have to be shown on the minimap

---
 indra/newview/app_settings/settings.xml | 22 ++++++++++++++++++++++
 indra/newview/llviewerobjectlist.cpp    | 10 +++++++---
 2 files changed, 29 insertions(+), 3 deletions(-)

diff --git a/indra/newview/app_settings/settings.xml b/indra/newview/app_settings/settings.xml
index 0a4e4183b..c1f005aba 100644
--- a/indra/newview/app_settings/settings.xml
+++ b/indra/newview/app_settings/settings.xml
@@ -10041,6 +10041,28 @@ This should be as low as possible, but too low may break functionality</string>
       <key>Value</key>
       <integer>1</integer>
     </map>
+    <key>MiniMapPrimMaxAltitudeDelta</key>
+    <map>
+      <key>Comment</key>
+      <string>Max allowed altitude difference between your avatar and prims others own for them to be displayed on the minimap (0 means unlimited).</string>
+      <key>Persist</key>
+      <integer>1</integer>
+      <key>Type</key>
+      <string>U32</string>
+      <key>Value</key>
+      <real>256</real>
+    </map>
+    <key>MiniMapPrimMaxAltitudeDeltaOwn</key>
+    <map>
+      <key>Comment</key>
+      <string>Max allowed altitude difference between your avatar and prims you own for them to be displayed on the minimap (0 means unlimited).</string>
+      <key>Persist</key>
+      <integer>1</integer>
+      <key>Type</key>
+      <string>U32</string>
+      <key>Value</key>
+      <real>0</real>
+    </map>
     <key>MiniMapPrimMaxRadius</key>
     <map>
       <key>Comment</key>
diff --git a/indra/newview/llviewerobjectlist.cpp b/indra/newview/llviewerobjectlist.cpp
index dfe5db84b..4ae625a52 100644
--- a/indra/newview/llviewerobjectlist.cpp
+++ b/indra/newview/llviewerobjectlist.cpp
@@ -1714,8 +1714,8 @@ void LLViewerObjectList::renderObjectsForMap(LLNetMap &netmap)
 
 	F32 max_radius = gSavedSettings.getF32("MiniMapPrimMaxRadius");
 	
-	static const F32 MAX_ALTITUDE_ABOVE_SELF = 256.f;
-	F32 max_altitude = gAgent.getPositionGlobal()[VZ] + MAX_ALTITUDE_ABOVE_SELF;
+	const F32 agent_altitude(gAgent.getPositionGlobal()[VZ]);
+	static const LLCachedControl<U32> delta("MiniMapPrimMaxAltitudeDelta");
 
 	for (vobj_list_t::iterator iter = mMapObjects.begin(); iter != mMapObjects.end(); ++iter)
 	{
@@ -1743,6 +1743,10 @@ void LLViewerObjectList::renderObjectsForMap(LLNetMap &netmap)
 		LLColor4U color = above_water_color;
 		if( objectp->permYouOwner() )
 		{
+			static const LLCachedControl<U32> delta("MiniMapPrimMaxAltitudeDeltaOwn");
+			if (delta && static_cast<U32>(std::fabs(agent_altitude - pos[VZ])) > delta)
+				continue;
+
 			const F32 MIN_RADIUS_FOR_OWNED_OBJECTS = 2.f;
 			if( approx_radius < MIN_RADIUS_FOR_OWNED_OBJECTS )
 			{
@@ -1772,7 +1776,7 @@ void LLViewerObjectList::renderObjectsForMap(LLNetMap &netmap)
 				}
 			}
 		}
-		else if ( pos[VZ] > max_altitude )
+		else if (delta && static_cast<U32>(std::fabs(agent_altitude - pos[VZ])) > delta)
 		{
 			continue;
 		}