请问：
" Q" j6 M" i, g/ b- |( d* S+ Q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？) r" C4 n# W* i5 x6 l9 B/ \( F/ q
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turtles-own [ energy ]
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clear-all6 D4 W" a" i6 B- ]
set-default-shape turtles "square"( k, O* \0 M k' V/ c
crt nutrition8 j4 V- N+ _: s; f
ask turtles[
$ v _* B7 G4 Z: b, h8 k2 C" Z set color white W. j% _/ v F/ F( ^: `
setxy random-pxcor random-pycor]
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ask n-of microbes-initialization patches, N/ G: g2 b# ~6 A& _# A# o% N
[ set pcolor green]7 d9 f! r# r' V1 F" U, I# w
ask turtles [set energy 1]
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to go
, U: U' R; ~& k8 I( j: l9 k* r ask turtles [set heading 90 * random 4 fd 1]
b9 _6 y, i) K' ]3 g# ~ ask patches with [ any? turtles-here]1 s5 Q; m1 M. w) W
[ if pcolor = green and random 100 < chance-of-congregating [tt ]]# m/ Q" N. m- y& i' ?4 P% I
ask turtles [ if energy = 0 [die ]]
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ask patches [set pcolor gray ]& Z6 _9 ?. H$ N, q4 V; \2 A
ask turtles [set energy energy - 1], G, u4 [" n9 V
end
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发表于 2008-4-8 10:49:43
楼主
