请问：4 l9 M+ w8 C$ ^4 t8 f8 b8 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 ]
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clear-all1 q0 l8 G2 W1 P( H: T
set-default-shape turtles "square"
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ask turtles[
" m7 x% o6 d: j; h set color white" Q( x& W% \2 g. a$ X
setxy random-pxcor random-pycor]& [5 o" k6 K; f
7 q# l" d! s" v) {$ k$ Pask n-of microbes-initialization patches
1 g, P- n$ H0 [1 J2 ?7 h4 }5 ~# ` [ set pcolor green]
5 t" @2 ~7 @7 s& A: B9 t ask turtles [set energy 1]
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to go
. h" ~% l9 m4 N$ ^) K8 k) I B ask turtles [set heading 90 * random 4 fd 1]9 X: D( x+ S4 a& D& b
ask patches with [ any? turtles-here]# F' v* }/ N1 k7 u
[ if pcolor = green and random 100 < chance-of-congregating [tt ]]
- N+ ]# T0 O" @9 Q ask turtles [ if energy = 0 [die ]]1 A+ j# S; v+ h' \
end
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( v- u- p! O6 nask patches [set pcolor gray ]1 u: {7 b) m. U6 r8 T- {) x
ask turtles [set energy energy - 1]5 x) B4 Y$ Y) p7 Z5 \- C# K6 O' y
end
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发表于 2008-4-8 10:49:43
楼主
