请问：$ ^6 d& C/ d" i
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 ]' p0 U7 W5 G8 C2 ~
to setup; {" Q& A1 [6 R5 h9 V7 o
clear-all0 v+ E% j* n2 f% q6 s* Y8 G' Z
set-default-shape turtles "square"
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ask turtles[) ]9 d) [' }1 Q" {
set color white$ M9 z3 M5 y$ [4 j
setxy random-pxcor random-pycor]; t+ d( k2 M+ f6 ~2 M% P
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ask n-of microbes-initialization patches) ]2 ^4 X8 Y/ _. I
[ set pcolor green]# n( l& m9 y! a. \8 U; m
ask turtles [set energy 1]
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to go
g* R g2 s. _$ Q" B ask turtles [set heading 90 * random 4 fd 1]0 F6 f V' x: n" e& D- Q+ ?
ask patches with [ any? turtles-here]
: V8 K3 q# R C$ v. y# l& R [ if pcolor = green and random 100 < chance-of-congregating [tt ]]
* o# ]: ?) i# R" o% G ask turtles [ if energy = 0 [die ]]
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to tt/ K8 m6 b% ]. _0 ^- X
ask patches [set pcolor gray ]) y, i4 O# z' b8 ~" x. R- B
ask turtles [set energy energy - 1]
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发表于 2008-4-8 10:49:43
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