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jamshred: fix failing unit test

db4
Alex Chapman 2008-05-12 10:34:51 +10:00
parent ee2814ae05
commit 866d23ff03
2 changed files with 9 additions and 4 deletions
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5
extra/jamshred/tunnel/tunnel-tests.factor
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@ -1,6 +1,6 @@
! Copyright (C) 2007 Alex Chapman
! See http://factorcode.org/license.txt for BSD license.
USING: jamshred.oint jamshred.tunnel kernel sequences tools.test ;
USING: arrays jamshred.oint jamshred.tunnel kernel math.vectors sequences tools.test ;
IN: jamshred.tunnel.tests
[ 0 ] [ T{ segment f { 0 0 0 } f f f 0 }
@ -41,4 +41,5 @@ IN: jamshred.tunnel.tests
[ { 0 1 0 } ] [ simple-collision-up sideways-heading ] unit-test
[ { 0 0 0 } ] [ simple-collision-up sideways-relative-location ] unit-test
[ { 0 1 0 } ] [ simple-collision-up collision-vector ] unit-test
[ { 0 1 0 } ]
[ simple-collision-up collision-vector 0 bounce-offset 0 3array v+ ] unit-test

8
extra/jamshred/tunnel/tunnel.factor
View File

@ -126,10 +126,14 @@ C: <segment> segment
: sideways-relative-location ( oint segment -- loc )
[ [ location>> ] bi@ v- ] keep forward>> proj-perp ;
: bounce-offset 0.1 ; inline
: bounce-radius ( segment -- r )
radius>> bounce-offset - ; ! bounce before we hit so that we can't see through the wall (hack?)
: collision-vector ( oint segment -- v )
[ sideways-heading ] [ sideways-relative-location ]
[ radius>> 0.1 - ] ! bounce before we hit so that we can't see through the wall (hack?)
2tri
[ bounce-radius ] 2tri
swap [ collision-coefficient ] dip forward>> n*v ;
: distance-to-collision ( oint segment -- distance )