33 lines
865 B
Factor
33 lines
865 B
Factor
! Copyright (C) 2005, 2006 Slava Pestov.
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! See http://factorcode.org/license.txt for BSD license.
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IN: gadgets
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USING: hashtables kernel math namespaces sequences ;
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TUPLE: timer object delay next ;
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C: timer ( object delay initial -- timer )
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[ >r millis + r> set-timer-next ] keep
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[ set-timer-delay ] keep
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[ set-timer-object ] keep ;
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GENERIC: tick ( object -- )
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: timers \ timers get-global ;
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: init-timers ( -- ) H{ } clone \ timers set-global ;
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: add-timer ( object delay initial -- )
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pick >r <timer> r> timers set-hash ;
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: remove-timer ( object -- ) timers remove-hash ;
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: advance-timer ( ms timer -- )
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[ timer-delay + ] keep set-timer-next ;
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: do-timer ( ms timer -- )
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dup timer-next pick <=
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[ [ advance-timer ] keep timer-object tick ] [ 2drop ] if ;
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: do-timers ( -- )
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millis timers hash-values [ do-timer ] each-with ;
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