请问：2 P1 `! V* Y5 i
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？, ]% }: K# x5 c5 J2 @
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9 u! w2 K6 E8 M2 f* Cturtles-own [ energy ]
) G |: N7 u& Oto setup
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set-default-shape turtles "square"
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ask turtles[; O# C8 J9 H7 g
set color white
. {; G# }3 I9 z: q setxy random-pxcor random-pycor]
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2 S7 n9 L) g/ g2 O' L" F) eask n-of microbes-initialization patches
. R- [7 K* y0 d& A% s/ m& H [ set pcolor green]
1 c# v5 g" |( l0 k0 @, e ask turtles [set energy 1]# s+ ^' P {# @6 V/ `
end# e0 H H' m7 R" f7 _
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to go
& M0 P- ~6 d7 B! e3 a' h8 Z ask turtles [set heading 90 * random 4 fd 1]6 V; o! l% @) [: V5 P& N
ask patches with [ any? turtles-here]
% A! k& t8 V4 A8 d2 p( j8 L [ if pcolor = green and random 100 < chance-of-congregating [tt ]]' m7 I9 ?0 f4 A! a" z) ?+ _
ask turtles [ if energy = 0 [die ]]
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to tt) h% Q$ a G7 f# N/ B- }. ?
ask patches [set pcolor gray ]
4 X X5 B% l5 o" c( ?ask turtles [set energy energy - 1]: ?- b5 L% ]+ a! C5 |
end2 l0 E; q6 r# c4 Z# p8 G! o
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发表于 2008-4-8 10:49:43
楼主
