What are these languages for

[comida-japonesa]

good afternoon people alright i wanted to know this curiosity: what are these languages for:

-accum 0 abort_if_equal 1

-accum 0 abort_if_equal 0

-accum 0 set 1

-accum 0 set 0

-set state invisible

-set state defaut

what is the use of these languages i wanted to understand?

[ryven]

Enemy Territory :: Mapping :: Scripting Reference (chruker.dk)

[Christina]

-accum 0 abort_if_equal 1

-accum 0 abort_if_equal 0

-accum 0 set 1

-accum 0 set 0

Those are used for calculation inside the script to adjust one specific script command

-set state invisible

-set state defaut

Those are used to hide and show entities in scripting