请问：
; }. \7 w% J7 l. c+ p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 ]
r3 a1 ` Y4 [" t6 z$ [; g2 R" eto setup6 g- q8 S- u: v8 d; i5 R9 E' @0 Z
clear-all
; x9 T2 T& P; z+ p& ?set-default-shape turtles "square"
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ask turtles[
( h1 H2 B/ ]" T: c5 \/ }. y! y9 Z( K& h set color white
& I! ^# W' M$ G) s setxy random-pxcor random-pycor]( q* w3 [ Y6 r( o8 ]6 a
# @- W: C: r/ @; f5 s+ Dask n-of microbes-initialization patches5 ^1 V4 w8 K5 T& G" J: W
[ set pcolor green]% u4 H* @9 l9 H
ask turtles [set energy 1]
; ^% Y ^- `7 kend
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ask turtles [set heading 90 * random 4 fd 1]) s; G4 W" \2 x: {, o
ask patches with [ any? turtles-here]
0 {$ M# ^& a( O! i1 X! J [ if pcolor = green and random 100 < chance-of-congregating [tt ]]
- r6 G* [- L1 ^% @% q ask turtles [ if energy = 0 [die ]]0 s+ a" a9 f5 k4 ^
end
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$ W5 r7 Y: y2 u) qto tt
% ~" d" u# J. \# M4 Sask patches [set pcolor gray ]6 g* O6 i" M* t) g9 B
ask turtles [set energy energy - 1]* f1 I- T% v5 o, {4 L/ v5 u- a1 O! @
end! i3 \* B1 D( e' [4 P7 G) @
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发表于 2008-4-8 10:49:43
楼主
