lua_run

lua_run is a logical entity available in Garry's Mod. It runs raw Lua code given to it in its keyvalues.

Keyvalues

Name (targetname) <string>[ Edit ]: The name that other entities refer to this entity by, via Inputs/Outputs or other keyvalues (e.g. parentname or target).
Also displayed in Hammer's 2D views and Entity Report. See also: Generic Keyvalues, Inputs and Outputs available to all entities

Code (Code) <string>: Lua code to run when triggered.
The lua variables ACTIVATOR and CALLER may be used in the code, as well as TRIGGER_PLAYER if !activator resolves to a player.; Warning:Using the quote symbol " in any text field of a Hammer Object Properties Dialog will lead to VMF corruption, fixable only by editing the VMF directly with a text editor and removing the added quote symbol.; Workaround:You should instead use either an apostrophe (single quote) ' or brackets [[]] to contain strings in your lua code.

Tip:Using include() you can run external lua files. The function looks for files in

\GarrysMod\garrysmod\addons\mapcontent\lua.
For example you could create a file named MyMapScript.lua at

\GarrysMod\garrysmod\addons\mapcontent\lua\MyMapScript.lua, which could then be run in Hammer with include('MyMapScript.lua').

RunPassedCode <stringRedirectInput/string>: Run code that was passed as a variable.

Lua_run Chat Message

lua_run parents a spark to the player, the spark then starts, stops after 10 seconds and removes itself for clean up

for k,v in pairs(ents.FindInSphere(Entity(1):GetPos(), 50)) do if v:IsPlayer() then local spark = ents.Create('env_spark'); spark:SetKeyValue('MaxDelay', '0.1'); spark:SetKeyValue('TrailLength', '3'); spark:SetKeyValue('Magnitude', '8'); spark:SetPos(v:GetPos() + Vector(0,0,45)); spark:SetParent(v); spark:Spawn(); spark:Fire('StartSpark'); spark:Fire('Kill', , 10); end end

Map example .VMF and .BSP (x3 lua_run functioning) - By gtamike_TSGK

Advanced Map example .VMF and .BSP (x3 lua_run parenting a spark to the player) - By gtamike_TSGK