Let's say you've a building with 3 levels, so you want to place 3 triggers.
obviously if the player enters 2º and 3º level, this meant he is a different terrain height.
And the 1º trigger meant he is a terrain height.
So each trigger can read player height, prompt you about it, and even state a gobal boolean var, (true, false, or 0,1).
So:
if boolean var == true then
--do something
else
--do nothing or something else
end
3com
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