<function name="GetAllNavAreas" parent="navmesh" type="libraryfunc"> <description>Returns an integer indexed table of all <page>CNavArea</page>s on the current map. If the map doesn't have a navmesh generated then this will return an empty table.</description> <realm>Server</realm> <rets> <ret name="" type="table<CNavArea>">A table of all the <page>CNavArea</page>s on the current map.</ret> </rets> </function> ⤶ ⤶ <example>⤶ <description>Visualizes the entire navmesh and light intensities of each area via the <page>debugoverlay</page> library.</description>⤶ <code>⤶ if SERVER then⤶ ⤶ local nav_visualize = CreateConVar( "nav_visualize", "0", 0, "Visualize navmesh" )⤶ local LastNavmeshViz = 0⤶ hook.Add("Think", "navmesh_visualize", function()⤶ if ( !nav_visualize:GetBool() ) then return end⤶ ⤶ if ( CurTime() - LastNavmeshViz < 0.1 ) then return end⤶ local time = math.min( CurTime() - LastNavmeshViz + 0.02, 1 )⤶ LastNavmeshViz = CurTime()⤶ ⤶ for id, navArea in pairs( navmesh.GetAllNavAreas() ) do⤶ local color = Color( 255, 255, 255, 40 + (1-navArea:GetLightIntensity() )* 200 )⤶ color:SetBrightness( navArea:GetLightIntensity() )⤶ ⤶ local ignoreDepth = nav_visualize:GetInt() > 1 && Entity(1):GetPos():Distance(navArea:GetCenter()) < 1000⤶ ⤶ -- Raise the corners up a bit to avoid z fighting with the ground⤶ local corner1 = navArea:GetCorner( 0 ) + Vector( 0, 0, 1 )⤶ local corner2 = navArea:GetCorner( 1 ) + Vector( 0, 0, 1 )⤶ local corner3 = navArea:GetCorner( 2 ) + Vector( 0, 0, 1 )⤶ local corner4 = navArea:GetCorner( 3 ) + Vector( 0, 0, 1 )⤶ debugoverlay.Triangle( corner3, corner2, corner1, time, color, ignoreDepth )⤶ debugoverlay.Triangle( corner1, corner4, corner3, time, color, ignoreDepth )⤶ end⤶ end)⤶ end⤶ </code>⤶ <output>⤶ <upload src="70c/8dedb655ee8e294.png" size="4234386" name="image.png" />⤶ </output>⤶ </example>