请问：
; g5 M# e1 y3 R6 u' V% W5 h3 t7 P6 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？" x' U+ R9 G5 M& M
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, B( T" V# i: H) S9 t- mturtles-own [ energy ]
/ Q& I5 Q. p! Tto setup7 U. @4 y9 m8 i8 D/ o, p1 p
clear-all: u. B3 C: l0 r. E7 g1 o
set-default-shape turtles "square"( b% w$ G4 x6 E( p7 X) V
crt nutrition
- \# \; d3 I8 J, F3 ?- s/ }ask turtles[
6 q. y9 |' _( ` set color white, X. J" u$ R1 t3 R' B
setxy random-pxcor random-pycor]
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ask n-of microbes-initialization patches
, s* h% D K% R [ set pcolor green]0 K) m- f5 W) }# o) P
ask turtles [set energy 1]4 J+ p" x( Y( B
end
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to go
9 o( }" {" m4 @* a2 n( @: H4 r! g. G ask turtles [set heading 90 * random 4 fd 1]- Q/ q6 p4 O; _" o
ask patches with [ any? turtles-here]
& s( W0 r0 s# n# _0 ~ [ if pcolor = green and random 100 < chance-of-congregating [tt ]]
4 a7 ?& e: O/ _8 D3 N, _1 V ask turtles [ if energy = 0 [die ]]
: w; y+ O. j# M( d, `* z end
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to tt
. p0 e+ z9 \% Z& K% o/ t/ cask patches [set pcolor gray ]9 i: {: l9 d! A# ~( H
ask turtles [set energy energy - 1]
- w: _% y6 [; g; b& |6 i \end
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发表于 2008-4-8 10:49:43
楼主
