Delete entity if not in zone

[Didvaitel]

Here's what to do:
When the entity from the list in zone then nothing happen but when entity leave from zone then entity removed.

Sorry for my english.

[doesNootCompute]

http://wiki.garrysmod.com/page/ents/FindInBox

You can use this to get all of the entities within an area and go from there.

[Didvaitel]

i tried use it but it's dont working , i dont know how to make entity was removed if not ents.FindInBox

[doesNootCompute]

I won't spoon feed you.

Here's my final gift to you
Entity/Remove

Are you a Lua beginner? Perhaps you need more of a foundation which enables you to learn.
Learning Lua and GLua

[_Fancy_]

double efficiency by doing things directly:
function RemoveEntsOutBounds(vector1, vector2)
    OrderVectors(vector1, vector2)
    for _, ent in pairs(ents.GetAll()) do
        if not IsValid(ent) then return end
        if ent:GetPos():WithinAABox(vector1, vector2) then ent:Remove() end
    end
end

[Maud Pie]

local vecto = FindMetaTable( "Vector" )

function vecto:InBox(vec1,vec2)
    OrderVectors(vec1,vec2)
    return self:WithinAABox(vec1,vec2)
end

local pos1 = Vector(0,0,0)
local pos2 = Vector(0,0,5)

hook.Add("PlayerSpawnedProp","DisablePropSpawnZone",function(ply,model,ent)
if not ent:GetPos():InBox(pos1,pos2) then
    ent:Remove()
end

end)

Example for props
All you need to change is hook

https://files.facepunch.com/forum/upload/108574/1141fd83-ba03-4f33-a065-ddd07b41c6a3/Screenshot_15.png

You can use this one