511 lines
14 KiB
Factor
511 lines
14 KiB
Factor
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USING: accessors arrays assocs calendar colors
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combinators.short-circuit help.markup help.syntax kernel locals
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math math.functions math.matrices math.order math.parser
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math.trig math.vectors opengl opengl.demo-support opengl.gl
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sbufs sequences strings threads ui.gadgets ui.gadgets.worlds
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ui.gestures ui.render ui.tools.workspace ;
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! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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IN: L-system
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! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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TUPLE: <turtle> pos ori angle length thickness color vertices saved ;
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DEFER: default-L-parser-values
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: reset-turtle ( turtle -- turtle )
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{ 0 0 0 } clone >>pos
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3 identity-matrix >>ori
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V{ } clone >>vertices
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V{ } clone >>saved
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default-L-parser-values ;
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: turtle ( -- turtle ) <turtle> new reset-turtle ;
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! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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:: step-turtle ( TURTLE LENGTH -- turtle )
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TURTLE
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TURTLE pos>> TURTLE ori>> { 0 0 LENGTH } m.v v+
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>>pos ;
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! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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:: Rx ( ANGLE -- Rx )
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[let | ANGLE [ ANGLE deg>rad ] |
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[let | A [ ANGLE cos ]
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B [ ANGLE sin neg ]
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C [ ANGLE sin ]
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D [ ANGLE cos ] |
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{ { 1 0 0 }
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{ 0 A B }
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{ 0 C D } }
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] ] ;
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:: Ry ( ANGLE -- Ry )
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[let | ANGLE [ ANGLE deg>rad ] |
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[let | A [ ANGLE cos ]
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B [ ANGLE sin ]
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C [ ANGLE sin neg ]
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D [ ANGLE cos ] |
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{ { A 0 B }
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{ 0 1 0 }
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{ C 0 D } }
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] ] ;
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:: Rz ( ANGLE -- Rz )
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[let | ANGLE [ ANGLE deg>rad ] |
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[let | A [ ANGLE cos ]
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B [ ANGLE sin neg ]
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C [ ANGLE sin ]
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D [ ANGLE cos ] |
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{ { A B 0 }
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{ C D 0 }
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{ 0 0 1 } }
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] ] ;
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! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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:: apply-rotation ( TURTLE ROTATION -- turtle )
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TURTLE TURTLE ori>> ROTATION m. >>ori ;
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: rotate-x ( turtle angle -- turtle ) Rx apply-rotation ;
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: rotate-y ( turtle angle -- turtle ) Ry apply-rotation ;
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: rotate-z ( turtle angle -- turtle ) Rz apply-rotation ;
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! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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: pitch-up ( turtle angle -- turtle ) neg rotate-x ;
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: pitch-down ( turtle angle -- turtle ) rotate-x ;
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: turn-left ( turtle angle -- turtle ) rotate-y ;
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: turn-right ( turtle angle -- turtle ) neg rotate-y ;
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: roll-left ( turtle angle -- turtle ) neg rotate-z ;
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: roll-right ( turtle angle -- turtle ) rotate-z ;
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! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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: V ( -- V ) { 0 1 0 } ;
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: X ( turtle -- 3array ) ori>> [ first ] map ;
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: Y ( turtle -- 3array ) ori>> [ second ] map ;
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: Z ( turtle -- 3array ) ori>> [ third ] map ;
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: set-X ( turtle seq -- turtle ) over ori>> [ set-first ] 2each ;
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: set-Y ( turtle seq -- turtle ) over ori>> [ set-second ] 2each ;
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: set-Z ( turtle seq -- turtle ) over ori>> [ set-third ] 2each ;
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:: roll-until-horizontal ( TURTLE -- turtle )
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TURTLE
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V TURTLE Z cross normalize set-X
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TURTLE Z TURTLE X cross normalize set-Y ;
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! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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:: strafe-up ( TURTLE LENGTH -- turtle )
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TURTLE 90 pitch-up LENGTH step-turtle 90 pitch-down ;
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:: strafe-down ( TURTLE LENGTH -- turtle )
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TURTLE 90 pitch-down LENGTH step-turtle 90 pitch-up ;
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:: strafe-left ( TURTLE LENGTH -- turtle )
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TURTLE 90 turn-left LENGTH step-turtle 90 turn-right ;
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:: strafe-right ( TURTLE LENGTH -- turtle )
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TURTLE 90 turn-right LENGTH step-turtle 90 turn-left ;
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! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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: polygon ( vertices -- ) GL_POLYGON glBegin [ first3 glVertex3d ] each glEnd ;
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: start-polygon ( turtle -- turtle ) dup vertices>> delete-all ;
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: finish-polygon ( turtle -- turtle ) dup vertices>> polygon ;
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: polygon-vertex ( turtle -- turtle ) dup [ pos>> ] [ vertices>> ] bi push ;
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! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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: record-vertex ( turtle -- turtle ) dup pos>> first3 glVertex3d ;
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: draw-forward ( turtle length -- turtle )
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GL_LINES glBegin [ record-vertex ] dip step-turtle record-vertex glEnd ;
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: move-forward ( turtle length -- turtle ) step-turtle polygon-vertex ;
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: sneak-forward ( turtle length -- turtle ) step-turtle ;
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! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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: scale-length ( turtle m -- turtle ) over length>> * >>length ;
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: scale-angle ( turtle m -- turtle ) over angle>> * >>angle ;
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! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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: set-thickness ( turtle i -- turtle ) dup glLineWidth >>thickness ;
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: scale-thickness ( turtle m -- turtle )
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over thickness>> * 0.5 max set-thickness ;
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! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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: color-table ( -- colors )
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{
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T{ rgba f 0 0 0 1 } ! black
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T{ rgba f 0.5 0.5 0.5 1 } ! grey
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T{ rgba f 1 0 0 1 } ! red
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T{ rgba f 1 1 0 1 } ! yellow
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T{ rgba f 0 1 0 1 } ! green
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T{ rgba f 0.25 0.88 0.82 1 } ! turquoise
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T{ rgba f 0 0 1 1 } ! blue
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T{ rgba f 0.63 0.13 0.94 1 } ! purple
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T{ rgba f 0.00 0.50 0.00 1 } ! dark green
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T{ rgba f 0.00 0.82 0.82 1 } ! dark turquoise
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T{ rgba f 0.00 0.00 0.50 1 } ! dark blue
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T{ rgba f 0.58 0.00 0.82 1 } ! dark purple
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T{ rgba f 0.50 0.00 0.00 1 } ! dark red
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T{ rgba f 0.25 0.25 0.25 1 } ! dark grey
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T{ rgba f 0.75 0.75 0.75 1 } ! medium grey
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T{ rgba f 1 1 1 1 } ! white
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} ;
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! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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! : material-color ( color -- )
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! GL_FRONT_AND_BACK GL_AMBIENT_AND_DIFFUSE rot gl-material ;
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: material-color ( color -- )
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GL_FRONT_AND_BACK GL_AMBIENT_AND_DIFFUSE rot color>raw 4array gl-material ;
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: set-color ( turtle i -- turtle )
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dup color-table nth dup gl-color material-color >>color ;
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: inc-color ( turtle -- turtle ) dup color>> 1 + set-color ;
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! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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: save-turtle ( turtle -- turtle ) dup clone over saved>> push ;
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: restore-turtle ( turtle -- turtle ) saved>> pop dup color>> set-color ;
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! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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: default-L-parser-values ( turtle -- turtle )
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1 >>length 45 >>angle 1 >>thickness 2 >>color ;
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: L-parser-dialect ( -- commands )
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{
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{ "+" [ dup angle>> turn-left ] }
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{ "-" [ dup angle>> turn-right ] }
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{ "&" [ dup angle>> pitch-down ] }
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{ "^" [ dup angle>> pitch-up ] }
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{ "<" [ dup angle>> roll-left ] }
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{ ">" [ dup angle>> roll-right ] }
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{ "|" [ 180.0 rotate-y ] }
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{ "%" [ 180.0 rotate-z ] }
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{ "$" [ roll-until-horizontal ] }
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{ "F" [ dup length>> draw-forward ] }
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{ "Z" [ dup length>> 2 / draw-forward ] }
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{ "f" [ dup length>> move-forward ] }
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{ "z" [ dup length>> 2 / move-forward ] }
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{ "g" [ dup length>> sneak-forward ] }
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{ "." [ polygon-vertex ] }
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{ "[" [ save-turtle ] }
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{ "]" [ restore-turtle ] }
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{ "{" [ start-polygon ] }
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{ "}" [ finish-polygon ] }
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{ "/" [ 1.1 scale-length ] } ! double quote command in lparser
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{ "'" [ 0.9 scale-length ] }
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{ ";" [ 1.1 scale-angle ] }
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{ ":" [ 0.9 scale-angle ] }
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{ "?" [ 1.4 scale-thickness ] }
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{ "!" [ 0.7 scale-thickness ] }
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{ "c" [ dup color>> 1 + color-table length mod set-color ] }
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}
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;
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! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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TUPLE: <L-system> < gadget
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camera display-list pedestal paused
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turtle-values
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commands axiom rules string ;
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! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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:: iterate-system ( GADGET -- ) GADGET pedestal>> 0.5 + GADGET (>>pedestal) ;
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! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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:: start-rotation-thread ( GADGET -- )
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GADGET f >>paused drop
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[
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[
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GADGET paused>>
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[ f ]
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[ GADGET iterate-system GADGET relayout-1 25 milliseconds sleep t ]
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if
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]
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loop
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]
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in-thread ;
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! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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: open-paren ( -- ch ) CHAR: ( ;
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: close-paren ( -- ch ) CHAR: ) ;
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: open-paren? ( obj -- ? ) open-paren = ;
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: close-paren? ( obj -- ? ) close-paren = ;
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! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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:: read-instruction ( STRING -- next rest )
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{ [ STRING length 1 > ] [ STRING second open-paren? ] } 0&&
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[ STRING close-paren STRING index 1 + cut ]
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[ STRING 1 cut ]
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if ;
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! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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:: iterate-string-loop ( STRING RULES ACCUM -- )
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STRING empty? not
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[
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STRING read-instruction
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[let | REST [ ] NEXT [ ] |
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NEXT 1 head RULES at NEXT or ACCUM push-all
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REST RULES ACCUM iterate-string-loop ]
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]
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when ;
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! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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:: iterate-string ( STRING RULES -- string )
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[let | ACCUM [ STRING length 10 * <sbuf> ] |
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STRING RULES ACCUM iterate-string-loop
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ACCUM >string ] ;
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! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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:: interpret-string ( STRING COMMANDS -- )
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STRING empty? not
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[
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STRING read-instruction
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[let | REST [ ] NEXT [ ] |
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[let | COMMAND [ NEXT 1 head COMMANDS at ] |
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COMMAND
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[
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NEXT length 1 =
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[ COMMAND call ]
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[
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NEXT 2 tail 1 head* string>number
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COMMAND 1 tail*
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call
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]
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if
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]
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when ]
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REST COMMANDS interpret-string ]
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]
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when ;
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! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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:: iterate-L-system-string ( L-SYSTEM -- )
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L-SYSTEM string>> L-SYSTEM axiom>> or
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L-SYSTEM rules>>
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iterate-string
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L-SYSTEM (>>string) ;
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! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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:: do-camera-look-at ( CAMERA -- )
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[let | EYE [ CAMERA pos>> ]
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FOCUS [ CAMERA clone 1 step-turtle pos>> ]
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UP [ CAMERA clone 90 pitch-up 1 step-turtle pos>> CAMERA pos>> v- ]
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EYE FOCUS UP gl-look-at ] ;
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! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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:: generate-display-list ( L-SYSTEM -- )
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L-SYSTEM find-gl-context
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L-SYSTEM display-list>> GL_COMPILE glNewList
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turtle
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L-SYSTEM turtle-values>> [ ] or call
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L-SYSTEM string>> L-SYSTEM axiom>> or
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L-SYSTEM commands>>
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interpret-string
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drop
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glEndList ;
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! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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M:: <L-system> draw-gadget* ( L-SYSTEM -- )
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black gl-clear
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GL_FLAT glShadeModel
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GL_PROJECTION glMatrixMode
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glLoadIdentity
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-1 1 -1 1 1.5 200 glFrustum
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GL_MODELVIEW glMatrixMode
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glLoadIdentity
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L-SYSTEM camera>> do-camera-look-at
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GL_FRONT_AND_BACK GL_LINE glPolygonMode
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! draw axis
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white gl-color GL_LINES glBegin { 0 0 0 } gl-vertex { 0 0 1 } gl-vertex glEnd
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! rotate pedestal
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L-SYSTEM pedestal>> 0 0 1 glRotated
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L-SYSTEM display-list>> glCallList ;
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! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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M:: <L-system> graft* ( L-SYSTEM -- )
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L-SYSTEM find-gl-context
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1 glGenLists L-SYSTEM (>>display-list) ;
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! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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M:: <L-system> pref-dim* ( L-SYSTEM -- dim ) { 400 400 } ;
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! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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:: with-camera ( L-SYSTEM QUOT -- )
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L-SYSTEM camera>> QUOT call drop
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L-SYSTEM relayout-1 ;
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! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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<L-system>
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H{
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{ T{ key-down f f "LEFT" } [ [ 5 turn-left ] with-camera ] }
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{ T{ key-down f f "RIGHT" } [ [ 5 turn-right ] with-camera ] }
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{ T{ key-down f f "UP" } [ [ 5 pitch-down ] with-camera ] }
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{ T{ key-down f f "DOWN" } [ [ 5 pitch-up ] with-camera ] }
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{ T{ key-down f f "a" } [ [ 1 step-turtle ] with-camera ] }
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{ T{ key-down f f "z" } [ [ -1 step-turtle ] with-camera ] }
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{ T{ key-down f f "q" } [ [ 5 roll-left ] with-camera ] }
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{ T{ key-down f f "w" } [ [ 5 roll-right ] with-camera ] }
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{ T{ key-down f { A+ } "LEFT" } [ [ 1 strafe-left ] with-camera ] }
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{ T{ key-down f { A+ } "RIGHT" } [ [ 1 strafe-right ] with-camera ] }
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{ T{ key-down f { A+ } "UP" } [ [ 1 strafe-up ] with-camera ] }
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{ T{ key-down f { A+ } "DOWN" } [ [ 1 strafe-down ] with-camera ] }
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{ T{ key-down f f "r" } [ start-rotation-thread ] }
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{
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T{ key-down f f "x" }
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[
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dup iterate-L-system-string
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dup generate-display-list
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dup relayout-1
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drop
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]
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}
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{ T{ key-down f f "F1" } [ drop "L-system" help-window ] }
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}
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set-gestures
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! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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: L-system ( -- L-system )
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<L-system> new-gadget
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0 >>pedestal
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! turtle 45 turn-left 45 pitch-up 5 step-turtle 180 turn-left >>camera ;
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turtle 90 pitch-down -5 step-turtle 2 strafe-up >>camera
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dup start-rotation-thread
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;
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! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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ARTICLE: "L-system" "L-system"
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"Press 'x' to iterate the L-system." $nl
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"Camera control:"
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{ $table
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{ "a" "Forward" }
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{ "z" "Backward" }
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{ "LEFT" "Turn left" }
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{ "RIGHT" "Turn right" }
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{ "UP" "Pitch down" }
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{ "DOWN" "Pitch up" }
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{ "q" "Roll left" }
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{ "w" "Roll right" } } ;
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ABOUT: "L-system" |