请问：
' F" N, F( {! O6 r$ K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？5 v) `+ K0 t$ K' J( ]
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6 x( }7 O1 ?! nturtles-own [ energy ]
( O5 f# o0 {$ p. P F+ c5 H, eto setup2 E' \9 _2 M8 Y8 e
clear-all" R5 Q# o* X9 M
set-default-shape turtles "square"
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ask turtles[
3 U5 T+ A. i+ Q2 q$ e- L( } set color white
4 N3 N ], m1 f3 F# u setxy random-pxcor random-pycor]/ A& X4 G( `9 A6 Z
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ask n-of microbes-initialization patches; V2 f! G0 _: g0 f0 K
[ set pcolor green]" a4 S# U e: M* t
ask turtles [set energy 1]7 b4 A) p( q5 Y9 S# q6 l3 m* W( g
end7 X- S t4 m1 Y% M: N( L7 T
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to go
8 Z3 [# v: P. E8 O/ L4 m5 I ask turtles [set heading 90 * random 4 fd 1]$ `5 i9 H& A8 Z7 [
ask patches with [ any? turtles-here]6 P+ Z% }2 _6 Z3 a5 W. i# b! d& R
[ if pcolor = green and random 100 < chance-of-congregating [tt ]]
4 `, s5 i' V# W# v$ ?3 P, S! R7 w ask turtles [ if energy = 0 [die ]]
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ask patches [set pcolor gray ]! U" {! N/ b: `5 A/ N
ask turtles [set energy energy - 1]
3 }+ v+ b; B- L! qend
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发表于 2008-4-8 10:49:43
楼主
