racket/collects/2htdp/private/design.txt
Matthias Felleisen f5714c2086 added universe via a 2htdp teachpack
svn: r12980
2009-01-03 02:38:09 +00:00

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Files for constructing universe.ss:
world.ss the old world
world% = (clock-mixin ...) -- the basic world
aworld% = (class world% ...) -- the world with recording
universe.ss the universe server
universe% = (clock-mixin ...) -- the basic universe
timer.ss the clock-mixin
check-aux.ss common primitives
image.ss the world image functions
syn-aux.ss syntactic auxiliaries
syn-aux-aux.ss auxiliaries to the syntactic auxiliaries