2 USING: accessors arrays assocs calendar colors
3 combinators.short-circuit help.markup help.syntax kernel locals
4 math math.functions math.matrices math.order math.parser
5 math.trig math.vectors opengl opengl.demo-support opengl.gl
6 sbufs sequences strings threads ui.gadgets ui.gadgets.worlds
7 ui.gestures ui.render ui.tools.workspace ;
9 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
13 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
15 TUPLE: <turtle> pos ori angle length thickness color vertices saved ;
17 DEFER: default-L-parser-values
19 : reset-turtle ( turtle -- turtle )
21 3 identity-matrix >>ori
25 default-L-parser-values ;
27 : turtle ( -- turtle ) <turtle> new reset-turtle ;
29 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
31 :: step-turtle ( TURTLE LENGTH -- turtle )
34 TURTLE pos>> TURTLE ori>> { 0 0 LENGTH } m.v v+
37 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
41 [let | ANGLE [ ANGLE deg>rad ] |
43 [let | A [ ANGLE cos ]
56 [let | ANGLE [ ANGLE deg>rad ] |
58 [let | A [ ANGLE cos ]
71 [let | ANGLE [ ANGLE deg>rad ] |
73 [let | A [ ANGLE cos ]
84 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
86 :: apply-rotation ( TURTLE ROTATION -- turtle )
88 TURTLE TURTLE ori>> ROTATION m. >>ori ;
90 : rotate-x ( turtle angle -- turtle ) Rx apply-rotation ;
91 : rotate-y ( turtle angle -- turtle ) Ry apply-rotation ;
92 : rotate-z ( turtle angle -- turtle ) Rz apply-rotation ;
94 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
96 : pitch-up ( turtle angle -- turtle ) neg rotate-x ;
97 : pitch-down ( turtle angle -- turtle ) rotate-x ;
99 : turn-left ( turtle angle -- turtle ) rotate-y ;
100 : turn-right ( turtle angle -- turtle ) neg rotate-y ;
102 : roll-left ( turtle angle -- turtle ) neg rotate-z ;
103 : roll-right ( turtle angle -- turtle ) rotate-z ;
105 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
107 : V ( -- V ) { 0 1 0 } ;
109 : X ( turtle -- 3array ) ori>> [ first ] map ;
110 : Y ( turtle -- 3array ) ori>> [ second ] map ;
111 : Z ( turtle -- 3array ) ori>> [ third ] map ;
113 : set-X ( turtle seq -- turtle ) over ori>> [ set-first ] 2each ;
114 : set-Y ( turtle seq -- turtle ) over ori>> [ set-second ] 2each ;
115 : set-Z ( turtle seq -- turtle ) over ori>> [ set-third ] 2each ;
117 :: roll-until-horizontal ( TURTLE -- turtle )
121 V TURTLE Z cross normalize set-X
123 TURTLE Z TURTLE X cross normalize set-Y ;
125 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
127 :: strafe-up ( TURTLE LENGTH -- turtle )
128 TURTLE 90 pitch-up LENGTH step-turtle 90 pitch-down ;
130 :: strafe-down ( TURTLE LENGTH -- turtle )
131 TURTLE 90 pitch-down LENGTH step-turtle 90 pitch-up ;
133 :: strafe-left ( TURTLE LENGTH -- turtle )
134 TURTLE 90 turn-left LENGTH step-turtle 90 turn-right ;
136 :: strafe-right ( TURTLE LENGTH -- turtle )
137 TURTLE 90 turn-right LENGTH step-turtle 90 turn-left ;
139 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
141 : polygon ( vertices -- ) GL_POLYGON glBegin [ first3 glVertex3d ] each glEnd ;
143 : start-polygon ( turtle -- turtle ) dup vertices>> delete-all ;
145 : finish-polygon ( turtle -- turtle ) dup vertices>> polygon ;
147 : polygon-vertex ( turtle -- turtle ) dup [ pos>> ] [ vertices>> ] bi push ;
149 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
151 : record-vertex ( turtle -- turtle ) dup pos>> first3 glVertex3d ;
153 : draw-forward ( turtle length -- turtle )
154 GL_LINES glBegin [ record-vertex ] dip step-turtle record-vertex glEnd ;
156 : move-forward ( turtle length -- turtle ) step-turtle polygon-vertex ;
158 : sneak-forward ( turtle length -- turtle ) step-turtle ;
160 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
162 : scale-length ( turtle m -- turtle ) over length>> * >>length ;
163 : scale-angle ( turtle m -- turtle ) over angle>> * >>angle ;
165 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
167 : set-thickness ( turtle i -- turtle ) dup glLineWidth >>thickness ;
169 : scale-thickness ( turtle m -- turtle )
170 over thickness>> * 0.5 max set-thickness ;
172 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
174 : color-table ( -- colors )
176 T{ rgba f 0 0 0 1 } ! black
177 T{ rgba f 0.5 0.5 0.5 1 } ! grey
178 T{ rgba f 1 0 0 1 } ! red
179 T{ rgba f 1 1 0 1 } ! yellow
180 T{ rgba f 0 1 0 1 } ! green
181 T{ rgba f 0.25 0.88 0.82 1 } ! turquoise
182 T{ rgba f 0 0 1 1 } ! blue
183 T{ rgba f 0.63 0.13 0.94 1 } ! purple
184 T{ rgba f 0.00 0.50 0.00 1 } ! dark green
185 T{ rgba f 0.00 0.82 0.82 1 } ! dark turquoise
186 T{ rgba f 0.00 0.00 0.50 1 } ! dark blue
187 T{ rgba f 0.58 0.00 0.82 1 } ! dark purple
188 T{ rgba f 0.50 0.00 0.00 1 } ! dark red
189 T{ rgba f 0.25 0.25 0.25 1 } ! dark grey
190 T{ rgba f 0.75 0.75 0.75 1 } ! medium grey
191 T{ rgba f 1 1 1 1 } ! white
194 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
196 ! : material-color ( color -- )
197 ! GL_FRONT_AND_BACK GL_AMBIENT_AND_DIFFUSE rot gl-material ;
199 : material-color ( color -- )
200 GL_FRONT_AND_BACK GL_AMBIENT_AND_DIFFUSE rot color>raw 4array gl-material ;
202 : set-color ( turtle i -- turtle )
203 dup color-table nth dup gl-color material-color >>color ;
205 : inc-color ( turtle -- turtle ) dup color>> 1 + set-color ;
207 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
209 : save-turtle ( turtle -- turtle ) dup clone over saved>> push ;
210 : restore-turtle ( turtle -- turtle ) saved>> pop ;
212 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
214 : default-L-parser-values ( turtle -- turtle )
215 1 >>length 45 >>angle 1 >>thickness 2 >>color ;
217 : L-parser-dialect ( -- commands )
220 { "+" [ dup angle>> turn-left ] }
221 { "-" [ dup angle>> turn-right ] }
222 { "&" [ dup angle>> pitch-down ] }
223 { "^" [ dup angle>> pitch-up ] }
224 { "<" [ dup angle>> roll-left ] }
225 { ">" [ dup angle>> roll-right ] }
227 { "|" [ 180.0 rotate-y ] }
228 { "%" [ 180.0 rotate-z ] }
229 { "$" [ roll-until-horizontal ] }
231 { "F" [ dup length>> draw-forward ] }
232 { "Z" [ dup length>> 2 / draw-forward ] }
233 { "f" [ dup length>> move-forward ] }
234 { "z" [ dup length>> 2 / move-forward ] }
235 { "g" [ dup length>> sneak-forward ] }
236 { "." [ polygon-vertex ] }
238 { "[" [ save-turtle ] }
239 { "]" [ restore-turtle ] }
241 { "{" [ start-polygon ] }
242 { "}" [ finish-polygon ] }
244 { "/" [ 1.1 scale-length ] } ! double quote command in lparser
245 { "'" [ 0.9 scale-length ] }
246 { ";" [ 1.1 scale-angle ] }
247 { ":" [ 0.9 scale-angle ] }
248 { "?" [ 1.4 scale-thickness ] }
249 { "!" [ 0.7 scale-thickness ] }
251 { "c" [ dup color>> 1 + color-table length mod set-color ] }
256 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
258 TUPLE: <L-system> < gadget
259 camera display-list pedestal paused commands axiom rules string ;
261 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
263 :: iterate-system ( GADGET -- ) GADGET pedestal>> 0.5 + GADGET (>>pedestal) ;
265 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
267 :: start-rotation-thread ( GADGET -- )
268 GADGET f >>paused drop
273 [ GADGET iterate-system GADGET relayout-1 25 milliseconds sleep t ]
280 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
282 : open-paren ( -- ch ) CHAR: ( ;
283 : close-paren ( -- ch ) CHAR: ) ;
285 : open-paren? ( obj -- ? ) open-paren = ;
286 : close-paren? ( obj -- ? ) close-paren = ;
288 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
290 :: read-instruction ( STRING -- next rest )
292 { [ STRING length 1 > ] [ STRING second open-paren? ] } 0&&
293 [ STRING close-paren STRING index 1 + cut ]
297 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
299 :: iterate-string-loop ( STRING RULES ACCUM -- )
302 STRING read-instruction
304 [let | REST [ ] NEXT [ ] |
306 NEXT 1 head RULES at NEXT or ACCUM push-all
308 REST RULES ACCUM iterate-string-loop ]
312 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
314 :: iterate-string ( STRING RULES -- string )
316 [let | ACCUM [ STRING length 10 * <sbuf> ] |
318 STRING RULES ACCUM iterate-string-loop
322 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
324 :: interpret-string ( STRING COMMANDS -- )
328 STRING read-instruction
330 [let | REST [ ] NEXT [ ] |
332 [let | COMMAND [ NEXT 1 head COMMANDS at ] |
339 NEXT 2 tail 1 head* string>number
347 REST COMMANDS interpret-string ]
351 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
353 :: iterate-L-system-string ( L-SYSTEM -- )
354 L-SYSTEM string>> L-SYSTEM axiom>> or
357 L-SYSTEM (>>string) ;
359 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
361 :: do-camera-look-at ( CAMERA -- )
363 [let | EYE [ CAMERA pos>> ]
364 FOCUS [ CAMERA clone 1 step-turtle pos>> ]
365 UP [ CAMERA clone 90 pitch-up 1 step-turtle pos>> CAMERA pos>> v- ]
368 EYE FOCUS UP gl-look-at ] ;
370 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
372 :: generate-display-list ( L-SYSTEM -- )
374 L-SYSTEM find-gl-context
376 L-SYSTEM display-list>> GL_COMPILE glNewList
379 L-SYSTEM string>> L-SYSTEM axiom>> or
386 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
388 M:: <L-system> draw-gadget* ( L-SYSTEM -- )
394 GL_PROJECTION glMatrixMode
396 -1 1 -1 1 1.5 200 glFrustum
398 GL_MODELVIEW glMatrixMode
402 L-SYSTEM camera>> do-camera-look-at
404 GL_FRONT_AND_BACK GL_LINE glPolygonMode
407 white gl-color GL_LINES glBegin { 0 0 0 } gl-vertex { 0 0 1 } gl-vertex glEnd
411 L-SYSTEM pedestal>> 0 0 1 glRotated
413 L-SYSTEM display-list>> glCallList ;
415 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
417 M:: <L-system> graft* ( L-SYSTEM -- )
419 L-SYSTEM find-gl-context
421 1 glGenLists L-SYSTEM (>>display-list) ;
423 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
425 M:: <L-system> pref-dim* ( L-SYSTEM -- dim ) { 400 400 } ;
427 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
429 :: with-camera ( L-SYSTEM QUOT -- )
430 L-SYSTEM camera>> QUOT call drop
431 L-SYSTEM relayout-1 ;
433 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
437 { T{ key-down f f "LEFT" } [ [ 5 turn-left ] with-camera ] }
438 { T{ key-down f f "RIGHT" } [ [ 5 turn-right ] with-camera ] }
439 { T{ key-down f f "UP" } [ [ 5 pitch-down ] with-camera ] }
440 { T{ key-down f f "DOWN" } [ [ 5 pitch-up ] with-camera ] }
442 { T{ key-down f f "a" } [ [ 1 step-turtle ] with-camera ] }
443 { T{ key-down f f "z" } [ [ -1 step-turtle ] with-camera ] }
445 { T{ key-down f f "q" } [ [ 5 roll-left ] with-camera ] }
446 { T{ key-down f f "w" } [ [ 5 roll-right ] with-camera ] }
448 { T{ key-down f f "r" } [ start-rotation-thread ] }
451 T{ key-down f f "x" }
453 dup iterate-L-system-string
454 dup generate-display-list
460 { T{ key-down f f "F1" } [ drop "L-system" help-window ] }
465 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
467 : L-system ( -- L-system )
469 <L-system> new-gadget
473 ! turtle 45 turn-left 45 pitch-up 5 step-turtle 180 turn-left >>camera ;
475 turtle 90 pitch-down -5 step-turtle 2 strafe-up >>camera
477 dup start-rotation-thread
481 ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
483 ARTICLE: "L-system" "L-system"
485 "Press 'x' to iterate the L-system." $nl
494 { "LEFT" "Turn left" }
495 { "RIGHT" "Turn right" }
496 { "UP" "Pitch down" }
497 { "DOWN" "Pitch up" }
500 { "w" "Roll right" } } ;