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Use overhauled alarms in game.loop

db4
Doug Coleman 2010-05-20 12:28:02 -05:00
parent 61b9f7a6d5
commit 5a08add73a
1 changed files with 18 additions and 16 deletions
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34
extra/game/loop/loop.factor
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@ -1,7 +1,7 @@
! (c)2009 Joe Groff bsd license
USING: accessors calendar continuations destructors kernel math
math.order namespaces system threads ui ui.gadgets.worlds
sequences ;
USING: accessors alarms calendar continuations destructors fry
kernel math math.order namespaces system ui ui.gadgets.worlds
vocabs.loader ;
IN: game.loop
TUPLE: game-loop
@ -15,7 +15,8 @@ TUPLE: game-loop
{ frame-number integer }
{ benchmark-time integer }
{ benchmark-tick-number integer }
{ benchmark-frame-number integer } ;
{ benchmark-frame-number integer }
alarm ;
GENERIC: tick* ( delegate -- )
GENERIC: draw* ( tick-slice delegate -- )
@ -64,16 +65,6 @@ TUPLE: game-loop-error game-loop error ;
[ 2drop ] if
] if-zero ;
: (run-loop) ( loop -- )
dup running?>>
[ [ MAX-FRAMES-TO-SKIP ?tick ] [ redraw ] [ yield (run-loop) ] tri ]
[ drop ] if ;
: run-loop ( loop -- )
dup game-loop
[ [ (run-loop) ] [ game-loop-error ] recover ]
with-variable ;
: benchmark-micros ( loop -- micros )
system-micros swap benchmark-time>> - ;
@ -90,11 +81,22 @@ PRIVATE>
: benchmark-frames-per-second ( loop -- n )
[ frame-number>> ] [ benchmark-frame-number>> - ] [ benchmark-micros ] tri /f ;
: (game-tick) ( loop -- )
dup running?>>
[ [ MAX-FRAMES-TO-SKIP ?tick ] [ redraw ] bi ]
[ drop ] if ;
: game-tick ( alarm loop -- )
[ alarm<< ] keep
dup game-loop [
[ (game-tick) ] [ game-loop-error ] recover
] with-variable ;
: start-loop ( loop -- )
system-micros >>last-tick
t >>running?
[ reset-loop-benchmark ]
[ [ run-loop ] curry "game loop" spawn ]
[ [ '[ _ game-tick ] ] keep tick-interval-micros>> microseconds every* ]
[ thread<< ] tri ;
: stop-loop ( loop -- )
@ -103,7 +105,7 @@ PRIVATE>
drop ;
: <game-loop*> ( tick-interval-micros tick-delegate draw-delegate -- loop )
system-micros f f 0 0 system-micros 0 0
system-micros f f 0 0 system-micros 0 0 f
game-loop boa ;
: <game-loop> ( tick-interval-micros delegate -- loop )