<function name="FindInCone" parent="ents" type="libraryfunc"> <description> <image src="ents.FindInCone.png" alt="2D_visualization_of_the_actual_shape_of_the_cone,_click_to_enlarge"/> Finds and returns all entities within the specified cone. Only entities whose <page>Entity:WorldSpaceCenter</page> is within the cone are considered to be in it. The "cone" is actually a conical "slice" of an axis-aligned box (see: <page>ents.FindInBox</page>). The image to the right shows approximately how this function would look in 2D. Due to this, the entity may be farther than the specified range! <note>Clientside entities will not be returned by this function.</note> <warning>If there are more than 512 entities in the axis-aligned box around the origin, then the result may be incomplete!</warning> </description> <realm>Shared</realm> <args> <arg name="origin" type="Vector">The tip of the cone.</arg> <arg name="normal" type="Vector">Direction of the cone.</arg> <arg name="range" type="number">The range of the cone/box around the origin. <note> The function internally adds 1 to this argument before using it. </note> </arg> <arg name="angle_cos" type="number">The <page text="cosine">math.cos</page> of the angle between the center of the cone to its edges, which is half the overall angle of the cone. 1 makes a 0° cone, 0.707 makes approximately 90°, 0 makes 180°, and so on.</arg> </args> <rets> <ret name="" type="table">A table of all found <page>Entity</page>s.</ret> </rets> </function> <example> <description>An example usage of this function. This example shows which entities are being returned by the function with red lines and the range with white transparent box.</description> <code> local mat = Material( "models/shiny" ) mat:SetFloat( "$alpha", 0.5 ) hook.Add( "PostDrawOpaqueRenderables", "conetest", function() local size = 200 local dir = LocalPlayer():GetAimVector() local angle = math.cos( math.rad( 15 ) ) -- 15 degrees local startPos = LocalPlayer():EyePos() local entities = ents.FindInCone( startPos, dir, size, angle ) -- draw the outer box local mins = Vector( -size, -size, -size ) local maxs = Vector( size, size, size ) render.SetMaterial( mat ) render.DrawWireframeBox( startPos, Angle( 0, 0, 0 ), mins, maxs, color_white, true ) render.DrawBox( startPos, Angle( 0, 0, 0 ), -mins, -maxs, color_white ) -- draw the lines for id, ent in pairs( entities ) do for id, ent in ipairs( entities ) do render.DrawLine( ent:WorldSpaceCenter() - dir * ( ent:WorldSpaceCenter()-startPos ):Length(), ent:WorldSpaceCenter(), Color( 255, 0, 0 ) ) end end ) </code> ⤶ </example></example>