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
9 _: B2 H& H1 A. J$ ^; eto make-turtles
    ask patch 0 0 [
- C& Z0 v2 c0 u. l      create-initial-turtles num-random-min   "random-min"   violet
      create-initial-turtles num-random       "random"       brown
) j" i% M5 o6 T% G8 w& Z2 n      create-initial-turtles num-random-away  "random-away"  pink
      create-initial-turtles num-open-min     "open-min"     blue
; z! N% z1 Y2 {' y* f& }      create-initial-turtles num-open-min-max "open-min-max" orange ]
  set-common-variables
8 L) n3 T  r3 \; p+ ?4 b& Fend

to create-initial-turtles [n turtle-rule turtle-color]
  ask n-of n (patches in-radius initial-radius with [not any? turtles-here])
8 j; w! f0 d+ {, {0 m' C  [ sprout 1
    [ set rule turtle-rule
      set color turtle-color ] ]
* a% A# S) G3 R  G. Gend

8 N4 [7 ~5 k8 e) ~0 Z[ 本帖最后由 etamina 于 2008-4-30 13:05 编辑 ]