请问：0 P' ?, M0 T5 H. `
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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turtles-own [ energy ]
7 S5 y; x' _1 C, @! zto setup
/ H. s9 d1 K1 D7 e8 Hclear-all1 \" I6 |: w. r8 u. P% i
set-default-shape turtles "square"
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ask turtles[
4 z9 m' |3 @: U+ D' f set color white
" \9 `9 R6 J- H; g' ]' S setxy random-pxcor random-pycor]
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6 Y# U, D. Y" F* ^6 G7 G2 ~. L' gask n-of microbes-initialization patches' p! e. ?- d% G! y% e( l
[ set pcolor green]
3 q4 r2 _8 `+ h5 ? ask turtles [set energy 1]3 Y5 a' ^: T3 z V! k' S
end
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ask turtles [set heading 90 * random 4 fd 1]1 S# D g1 Y/ V! G- n& Y1 \" k$ \
ask patches with [ any? turtles-here]
7 i0 J( Q% b! B4 |: _. p% K [ if pcolor = green and random 100 < chance-of-congregating [tt ]]6 L1 s3 I, Y. u5 T" [: C/ I0 m' L6 `% {' F
ask turtles [ if energy = 0 [die ]]
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ask patches [set pcolor gray ]
, s/ L# ^) A, i. g- T2 ?ask turtles [set energy energy - 1]( W; G) S: u3 |
end# W1 f5 B" M! o% z8 c* n
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发表于 2008-4-8 10:49:43
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