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lua/includes/extensions/util/worldpicker.lua

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+--[[
+| This file was obtained through the combined efforts
+| of Madbluntz & Plymouth Antiquarian Society.
+|
+| Credits: lifestorm, Gregory Wayne Rossel JR.,
+| 	Maloy, DrPepper10 @ RIP, Atle!
+|
+| Visit for more: https://plymouth.thetwilightzone.ru/
+--]]
+
+--
+--
+-- worldpicker is for picking an entity from the game while you have the GUI open.
+-- Calling util.worldpicker.Start( func ) will hide all GUI and let you pick an entity from
+-- the game world. Once selected it will call your passed function with the trace.
+--
+-- It's used in the icon editor
+--
+--
+
+local bDoing = false
+local fnAction = nil
+
+util.worldpicker = {
+	--
+	-- Start world picking
+	--
+	Start = function( func )
+
+		bDoing = true
+		fnAction = func
+		gui.EnableScreenClicker( true )
+
+	end,
+
+	--
+	-- Finish world picking - you shouldn't have to call this (called from hook below)
+	--
+	Finish = function( tr )
+
+		bDoing = false
+		fnAction( tr )
+		gui.EnableScreenClicker( false )
+
+	end,
+
+	Active = function() return bDoing end
+}
+
+hook.Add( "VGUIMousePressAllowed", "WorldPickerMouseDisable", function( code )
+
+	if ( !bDoing ) then return false end
+
+	local dir = gui.ScreenToVector( input.GetCursorPos() )
+	local tr = util.TraceLine( {
+		start = LocalPlayer():GetShootPos(),
+		endpos = LocalPlayer():GetShootPos() + dir * 32768,
+		filter = LocalPlayer()
+	} )
+
+	util.worldpicker.Finish( tr )
+
+	-- Don't register this click
+	return true
+
+end )