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
  w0 @. K- s$ s1 _8 R5 {9 |to make-turtles
    ask patch 0 0 [
0 w2 z) H/ w! ?; x! l+ X& W      create-initial-turtles num-random-min   "random-min"   violet
# G/ e% y7 W) Y7 d" v2 P; i5 I. j      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
      create-initial-turtles num-open-min-max "open-min-max" orange ]
  set-common-variables
7 ]  R7 g; v# b1 vend
4 F8 F+ _6 E/ E2 u# x/ ?8 g
4 @" O, b4 H# U2 g- \to create-initial-turtles [n turtle-rule turtle-color]
  ask n-of n (patches in-radius initial-radius with [not any? turtles-here])
  [ sprout 1
4 P, }5 U6 j  L2 [) {    [ set rule turtle-rule
      set color turtle-color ] ]
end

! i1 S/ i$ b7 _- h[ 本帖最后由 etamina 于 2008-4-30 13:05 编辑 ]