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 jamshred.sound jamshred.tunnel kernel locals math math.constants math.order math.ranges math.vectors math.matrices shuffle sequences system ;
7 TUPLE: player < oint name sounds tunnel nearest-segment last-move speed ;
9 ! speeds are in GL units / second
10 : default-speed ( -- speed ) 1.0 ;
11 : max-speed ( -- speed ) 30.0 ;
13 : <player> ( name sounds -- player )
14 [ F{ 0 0 5 } F{ 0 0 -1 } F{ 0 1 0 } F{ -1 0 0 } ] 2dip
15 f f f default-speed player boa ;
17 : turn-player ( player x-radians y-radians -- )
18 >r over r> left-pivot up-pivot ;
20 : roll-player ( player z-radians -- )
23 : to-tunnel-start ( player -- )
24 [ tunnel>> first dup location>> ]
25 [ tuck (>>location) (>>nearest-segment) ] bi ;
27 : play-in-tunnel ( player segments -- )
28 >>tunnel to-tunnel-start ;
30 : update-nearest-segment ( player -- )
31 [ tunnel>> ] [ dup nearest-segment>> nearest-segment ]
32 [ (>>nearest-segment) ] tri ;
34 : update-time ( player -- seconds-passed )
35 millis swap [ last-move>> - 1000 / ] [ (>>last-move) ] 2bi ;
37 : moved ( player -- ) millis swap (>>last-move) ;
39 : speed-range ( -- range )
42 : change-player-speed ( inc player -- )
43 [ + speed-range clamp-to-range ] change-speed drop ;
45 : multiply-player-speed ( n player -- )
46 [ * speed-range clamp-to-range ] change-speed drop ;
48 : distance-to-move ( seconds-passed player -- distance )
51 : bounce ( d-left player -- d-left' player )
53 [ dup nearest-segment>> bounce-off-wall ]
55 [ 3/4 swap multiply-player-speed ]
59 :: (distance) ( heading player -- current next location heading )
60 player nearest-segment>>
61 player [ tunnel>> ] [ nearest-segment>> ] bi heading heading-segment
62 player location>> heading ;
64 : distance-to-heading-segment ( heading player -- distance )
65 (distance) distance-to-next-segment ;
67 : distance-to-heading-segment-area ( heading player -- distance )
68 (distance) distance-to-next-segment-area ;
70 : distance-to-collision ( player -- distance )
71 dup nearest-segment>> (distance-to-collision) ;
73 : from ( player -- radius distance-from-centre )
74 [ nearest-segment>> dup radius>> swap ] [ location>> ] bi
75 distance-from-centre ;
77 : distance-from-wall ( player -- distance ) from - ;
78 : fraction-from-centre ( player -- fraction ) from swap / ;
79 : fraction-from-wall ( player -- fraction )
80 fraction-from-centre 1 swap - ;
82 : update-nearest-segment2 ( heading player -- )
83 2dup distance-to-heading-segment-area 0 <= [
84 [ tunnel>> ] [ nearest-segment>> rot heading-segment ]
85 [ (>>nearest-segment) ] tri
90 :: move-player-on-heading ( d-left player distance heading -- d-left' player )
91 [let* | d-to-move [ d-left distance min ]
92 move-v [ d-to-move heading n*v ] |
93 move-v player location+
94 heading player update-nearest-segment2
95 d-left d-to-move - player ] ;
97 : move-toward-wall ( d-left player d-to-wall -- d-left' player )
98 over [ forward>> ] keep distance-to-heading-segment-area min
99 over forward>> move-player-on-heading ;
101 : ?move-player-freely ( d-left player -- d-left' player )
103 dup distance-to-collision dup 0.2 > [ ! bug! should be 0, not 0.2
104 move-toward-wall ?move-player-freely
108 : drag-heading ( player -- heading )
109 [ forward>> ] [ nearest-segment>> forward>> proj ] bi ;
111 : drag-player ( d-left player -- d-left' player )
112 dup [ [ drag-heading ] keep distance-to-heading-segment-area ]
113 [ drag-heading move-player-on-heading ] bi ;
115 : (move-player) ( d-left player -- d-left' player )
116 ?move-player-freely over 0 > [
122 : move-player ( player -- )
123 [ update-time ] [ distance-to-move ] [ (move-player) 2drop ] tri ;
125 : update-player ( player -- )
126 [ move-player ] [ nearest-segment>> white swap (>>color) ] bi ;