请问：
! T7 H* \) w9 c随机产生的turtle 已经在patch的坐标上上下左右一格格运动，当turtle碰到一个随即分布的patch以一定概率粘合,patch变色，其他turtle经过也还是以一定概率粘合的，粘合后turtle的能量就会转变到patch上，并且以一定速率消耗它，怎么编写这个过程？下面是我编写的，运行时就出错了。怎么改正呢？ \9 |# b5 q( X- p( {
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turtles-own [ energy ]
: D H" Q9 |8 p7 G, rto setup
! z1 x( s& x9 l. c1 S* Qclear-all; x* E* p% N& h& p
set-default-shape turtles "square"
! { b* m# M+ S- C# B/ w: n6 Ocrt nutrition
! Z. O- G, Y1 e+ a: jask turtles[
1 C5 G# i+ C8 J% C set color white
' ?/ o( t' j1 D1 h! Z setxy random-pxcor random-pycor]
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ask n-of microbes-initialization patches" {! A7 \8 o( E* R
[ set pcolor green]
7 ]4 v: m+ Q" M8 j7 Q7 k1 s. } ask turtles [set energy 1]
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to go
" f) l7 B, k7 ^7 U& X1 b9 ` ask turtles [set heading 90 * random 4 fd 1]
' M! F& @* x5 y0 g7 B4 @ ask patches with [ any? turtles-here]% C) X8 A- P) ? n
[ if pcolor = green and random 100 < chance-of-congregating [tt ]]
9 A3 t; H5 z& e- v ask turtles [ if energy = 0 [die ]]# u) B9 m3 \* g7 m4 v; ?0 M% ]
end7 h! A5 b' h( B' v2 u$ g3 G
' w: y8 M: }8 Xto tt
( q+ `- E; A! I cask patches [set pcolor gray ]" h, z9 y3 [. ]! E' U
ask turtles [set energy energy - 1]
8 P# o5 Q2 J$ O: R- d1 Y( oend
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发表于 2008-4-8 10:49:43
楼主
