Here's a suggestion;
-- creates a one time trigger
init --//
textread = 0
end -- init
main--//
if textread == 0 then
If GetPlayerDistance(e) < 78.3 then textread = 1 end
end
if textread == 1 then
Text(11,11,1,"Get your weapons!")
If GetPlayerDistance(e) > 78.3 then textread = 2 end
end
end -- main