请问：( F1 s4 ^' W/ e% V
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 ]/ ?3 w. {( t$ Z4 c! ?
to setup
/ l9 Q! j) j0 L9 }7 sclear-all
- |# \2 w1 r. Y! g: Y( F: [set-default-shape turtles "square" l% @, n+ L% a, B! o
crt nutrition
/ u; x- {8 x$ b; ~+ ]# jask turtles[/ p2 R) p& O8 i1 v& m5 Y
set color white: o3 p) O% E1 E' S b4 g6 F; ~
setxy random-pxcor random-pycor]
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ask n-of microbes-initialization patches
" {8 m( l! F% N- Z2 C$ y [ set pcolor green]
, A8 G$ C0 e* P+ C0 T; Y* G! ` ask turtles [set energy 1]
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to go
% r V' h5 o; u ask turtles [set heading 90 * random 4 fd 1]- E$ z5 y( e! l1 I/ V
ask patches with [ any? turtles-here]
2 f& D( A! j$ S. |/ d4 b [ if pcolor = green and random 100 < chance-of-congregating [tt ]]
% q: w2 w8 f! Z6 I6 Q ask turtles [ if energy = 0 [die ]]1 ~6 N& v# w4 b) z) B% w
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to tt7 `5 l& o) L r8 x$ I
ask patches [set pcolor gray ]
* c2 J' g( D2 B( Lask turtles [set energy energy - 1]
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发表于 2008-4-8 10:49:43
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