请问：
3 z0 n0 X# |! K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？
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* L* E% n/ [9 B H# O6 C1 tturtles-own [ energy ]
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clear-all
& e; q4 }( s, `. A5 z A2 @2 ?set-default-shape turtles "square"
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ask turtles[
0 S; k/ N7 z: u( u. ]& T set color white
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ask n-of microbes-initialization patches: ?: O9 i/ g! G+ J
[ set pcolor green]# a, I" U3 Q3 T* `
ask turtles [set energy 1]
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ask turtles [set heading 90 * random 4 fd 1]6 B# U- {* a( [' U Z7 D" o/ e
ask patches with [ any? turtles-here]! |& i2 ~- p3 c6 K) v0 g
[ if pcolor = green and random 100 < chance-of-congregating [tt ]]3 G" p+ V3 c$ z6 C# e
ask turtles [ if energy = 0 [die ]]
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to tt
9 r# f' l* }* x4 j) jask patches [set pcolor gray ]
4 g% S- l$ u! g2 N }0 Sask turtles [set energy energy - 1]+ m& x" D, s8 z% y" V0 m7 n/ d
end
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发表于 2008-4-8 10:49:43
楼主
