请问：
' e. K. y2 q+ l3 U; H/ B$ ]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？" [& o0 f8 L8 A% W+ x4 [7 n# I& a y
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turtles-own [ energy ]6 M# C' d+ C2 C1 r- \
to setup
. V) C1 s; Q8 r$ s, Q1 Q; R0 lclear-all
* A8 r1 V: ]9 m/ p! V2 h: d( x1 Oset-default-shape turtles "square"
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ask turtles[
* n# Q0 j W2 v set color white
3 h. I U9 n. d! E0 t$ ? setxy random-pxcor random-pycor]" R V" l0 a4 }
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ask n-of microbes-initialization patches7 b' Q& r4 T+ H' `; c
[ set pcolor green]
+ b0 I! d2 p L+ N8 I0 V ask turtles [set energy 1]
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to go0 }2 @3 r4 O) d3 X- u1 l
ask turtles [set heading 90 * random 4 fd 1]% R" W6 T0 o2 `) j
ask patches with [ any? turtles-here]0 K' T; \6 h# G! S
[ if pcolor = green and random 100 < chance-of-congregating [tt ]]
3 ^$ ?5 r& ?! e5 y ask turtles [ if energy = 0 [die ]]
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ask patches [set pcolor gray ]- B! Z7 c$ U" O1 f* M% p, F# t. `( a7 |
ask turtles [set energy energy - 1]4 T0 ~8 v/ e5 h: i
end3 {& z# f }1 C, C# [) X3 D2 {* R
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发表于 2008-4-8 10:49:43
楼主
