请问：$ _5 F# T+ K' W8 U, T' a+ J
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？) B9 r4 v: ^5 z
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/ k9 f5 l$ |0 R6 V: D* Pturtles-own [ energy ]9 o2 \- b0 c, a5 r, {
to setup4 G; ]$ Z4 P/ p8 i
clear-all; ]& h; G$ [5 I( }) m) `
set-default-shape turtles "square"
' h$ e: y! @+ e7 L9 e) m- Hcrt nutrition
, u$ e' I: r4 M8 _) @( B" ^9 S/ T+ Fask turtles[
' I3 m) \5 X; x4 L4 {7 @; S( h set color white
9 p. H. U: G% E t* j setxy random-pxcor random-pycor]
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ask n-of microbes-initialization patches1 P( W3 ^) |6 m* N& u) a
[ set pcolor green]- k5 r# D" R7 x8 g. u! T5 |7 U
ask turtles [set energy 1]$ g C+ y3 v" d
end+ `7 Y( `3 m' C1 S8 \3 w
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ask turtles [set heading 90 * random 4 fd 1]
. P* u4 l# X7 L2 Z1 F8 O; ^# ?& A0 [ ask patches with [ any? turtles-here]
6 d7 r( M4 V7 p! u8 P1 j5 w$ h ? [ if pcolor = green and random 100 < chance-of-congregating [tt ]]
& @. _8 U N* w+ V x9 y3 Q ask turtles [ if energy = 0 [die ]]
: |' V( g) O l! m5 q( V2 d end
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+ X) O9 q& y3 n5 \to tt
: e5 } E9 t. ?8 w" a) yask patches [set pcolor gray ]
( G$ o) B9 l K. {6 W! \ask turtles [set energy energy - 1]
+ \" t$ y5 c6 C7 S8 kend
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发表于 2008-4-8 10:49:43
楼主
