<function name="GetInternalVariable" parent="Entity" type="classfunc"> <description> An interface for accessing internal key values on entities. See <page>Entity:GetSaveTable</page> for a more detailed explanation. See <page>Entity:SetSaveValue</page> for the opposite of this function. </description> <realm>Shared</realm> <args> <arg name="variableName" type="string">Name of variable corresponding to an entity save value.</arg> </args> <rets> <ret name="" type="any">The internal variable value.</ret> </rets> </function> <example> <description>Get how long it has been since the player was damaged.</description> <code> local meta = FindMetaTable( "Player" ) function meta:GetLastDamageTime() return self:GetInternalVariable( "m_flLastDamageTime" ) end print( Entity( 1 ):GetLastDamageTime() ) </code> <output> ``` -31.965000152588 ``` </output> </example> <example> <description>Determine if a door is locked or not (**server side**).</description> <code> function IsDoorLocked( entity ) return ( entity:GetInternalVariable( "m_bLocked" ) ) end </code> <output>Returns `true` if the door is locked.</output> </example> <example> <description>Determines whether the door is open or not (**server side**).</description> <code> function DoorIsOpen( door ) local doorClass = door:GetClass() if ( doorClass == "func_door" and doorClass == "func_door_rotating" ) then return ( self:GetInternalVariable( "m_toggle_state" ) == 0 )⤶ if ( doorClass == "func_door" or doorClass == "func_door_rotating" ) then return self:GetInternalVariable( "m_toggle_state" ) == 0⤶ elseif ( doorClass == "prop_door_rotating" ) then return ( self:GetInternalVariable( "m_eDoorState" ) ~= 0 )⤶ return self:GetInternalVariable( "m_eDoorState" ) ~= 0⤶ else return false end end </code> <output>Returns `true` if the door is open.</output> </example>