语法看不懂，能帮忙解释一下吗？

etamina

下面的语句中ask patch和create-initial-turtles 后面接的[ ]中的语句是什么含义，其中非原语的都是定义的全局或者外部变量。语法有点奇怪，谁能帮我解释一下吗？多谢
to make-turtles
$ U9 w$ j) ~1 S; f9 _3 s) E    ask patch 0 0 [
( m4 d! b/ L; t8 M5 B/ n3 M      create-initial-turtles num-random-min   "random-min"   violet
      create-initial-turtles num-random       "random"       brown
      create-initial-turtles num-random-away  "random-away"  pink
      create-initial-turtles num-open-min     "open-min"     blue
7 S7 [. y. ]2 b# Y1 y, o      create-initial-turtles num-open-min-max "open-min-max" orange ]
  set-common-variables
" ~: J; H1 r; D; a6 Fend

to create-initial-turtles [n turtle-rule turtle-color]
  ask n-of n (patches in-radius initial-radius with [not any? turtles-here])
4 g! a% P- N2 W- t. C0 X  [ sprout 1
: n* Q& c' i, d- V4 f( c    [ set rule turtle-rule
      set color turtle-color ] ]
end
1 p/ V9 z3 e* D  r" F$ o( |* h" C
- T2 J8 m. V$ |# P[ 本帖最后由 etamina 于 2008-4-30 13:05 编辑 ]