1 ! Copyright (C) 2007, 2008 Alex Chapman
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: accessors colors combinators jamshred.log jamshred.oint
4 jamshred.sound jamshred.tunnel kernel locals math math.constants
5 math.order math.ranges math.vectors math.matrices shuffle
6 sequences system float-arrays ;
9 TUPLE: player < oint name sounds tunnel nearest-segment last-move speed ;
11 ! speeds are in GL units / second
12 : default-speed ( -- speed ) 1.0 ;
13 : max-speed ( -- speed ) 30.0 ;
15 : <player> ( name sounds -- player )
16 [ F{ 0 0 5 } F{ 0 0 -1 } F{ 0 1 0 } F{ -1 0 0 } ] 2dip
17 f f f default-speed player boa ;
19 : turn-player ( player x-radians y-radians -- )
20 >r over r> left-pivot up-pivot ;
22 : roll-player ( player z-radians -- )
25 : to-tunnel-start ( player -- )
26 [ tunnel>> first dup location>> ]
27 [ tuck (>>location) (>>nearest-segment) ] bi ;
29 : play-in-tunnel ( player segments -- )
30 >>tunnel to-tunnel-start ;
32 : update-nearest-segment ( player -- )
33 [ tunnel>> ] [ dup nearest-segment>> nearest-segment ]
34 [ (>>nearest-segment) ] tri ;
36 : update-time ( player -- seconds-passed )
37 millis swap [ last-move>> - 1000 / ] [ (>>last-move) ] 2bi ;
39 : moved ( player -- ) millis swap (>>last-move) ;
41 : speed-range ( -- range )
44 : change-player-speed ( inc player -- )
45 [ + speed-range clamp-to-range ] change-speed drop ;
47 : multiply-player-speed ( n player -- )
48 [ * speed-range clamp-to-range ] change-speed drop ;
50 : distance-to-move ( seconds-passed player -- distance )
53 : bounce ( d-left player -- d-left' player )
55 [ dup nearest-segment>> bounce-off-wall ]
57 [ 3/4 swap multiply-player-speed ]
61 :: (distance) ( heading player -- current next location heading )
62 player nearest-segment>>
63 player [ tunnel>> ] [ nearest-segment>> ] bi heading heading-segment
64 player location>> heading ;
66 : distance-to-heading-segment ( heading player -- distance )
67 (distance) distance-to-next-segment ;
69 : distance-to-heading-segment-area ( heading player -- distance )
70 (distance) distance-to-next-segment-area ;
72 : distance-to-collision ( player -- distance )
73 dup nearest-segment>> (distance-to-collision) ;
75 : from ( player -- radius distance-from-centre )
76 [ nearest-segment>> dup radius>> swap ] [ location>> ] bi
77 distance-from-centre ;
79 : distance-from-wall ( player -- distance ) from - ;
80 : fraction-from-centre ( player -- fraction ) from swap / ;
81 : fraction-from-wall ( player -- fraction )
82 fraction-from-centre 1 swap - ;
84 : update-nearest-segment2 ( heading player -- )
85 2dup distance-to-heading-segment-area 0 <= [
86 [ tunnel>> ] [ nearest-segment>> rot heading-segment ]
87 [ (>>nearest-segment) ] tri
92 :: move-player-on-heading ( d-left player distance heading -- d-left' player )
93 [let* | d-to-move [ d-left distance min ]
94 move-v [ d-to-move heading n*v ] |
95 move-v player location+
96 heading player update-nearest-segment2
97 d-left d-to-move - player ] ;
99 : move-toward-wall ( d-left player d-to-wall -- d-left' player )
100 over [ forward>> ] keep distance-to-heading-segment-area min
101 over forward>> move-player-on-heading ;
103 : ?move-player-freely ( d-left player -- d-left' player )
105 dup distance-to-collision dup 0.2 > [ ! bug! should be 0, not 0.2
106 move-toward-wall ?move-player-freely
110 : drag-heading ( player -- heading )
111 [ forward>> ] [ nearest-segment>> forward>> proj ] bi ;
113 : drag-player ( d-left player -- d-left' player )
114 dup [ [ drag-heading ] keep distance-to-heading-segment-area ]
115 [ drag-heading move-player-on-heading ] bi ;
117 : (move-player) ( d-left player -- d-left' player )
118 ?move-player-freely over 0 > [
124 : move-player ( player -- )
125 [ update-time ] [ distance-to-move ] [ (move-player) 2drop ] tri ;
127 : update-player ( player -- )
128 [ move-player ] [ nearest-segment>> white swap (>>color) ] bi ;