请问：7 s8 W/ s9 }8 J! X
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？+ h. T: c+ I, U& h4 W
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; p. Y' ]$ X8 A$ S9 oturtles-own [ energy ]
# l' h" q. H+ Q n) u; kto setup
/ Y/ R( X; S( ]: tclear-all
9 e; a. a/ C/ q. z+ c/ S3 q8 Sset-default-shape turtles "square"0 w9 F: q' M, i; H$ O3 |
crt nutrition. p! V) Z, V4 F
ask turtles[
) f8 O' i% Z; g set color white$ n' G* S/ v& ^& o- F e
setxy random-pxcor random-pycor]
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ask n-of microbes-initialization patches6 `6 T6 T! X+ J! g: o* R
[ set pcolor green]1 `3 e2 {3 D6 B( E m
ask turtles [set energy 1]/ G- e' H* r* a7 p$ Z
end
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to go
5 }' s! p0 a/ `4 R s ask turtles [set heading 90 * random 4 fd 1]
+ \9 E9 B1 w+ V* I- A ask patches with [ any? turtles-here]
: }1 e2 F. ~+ y$ ?7 U; M2 p [ if pcolor = green and random 100 < chance-of-congregating [tt ]]
# l j7 p( n% | ask turtles [ if energy = 0 [die ]]
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ask patches [set pcolor gray ]
. O+ p' _) l2 e& Oask turtles [set energy energy - 1]
N" V; F2 ]3 `end
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发表于 2008-4-8 10:49:43
楼主
