请问：1 e7 C3 i+ C3 }& T7 b+ }/ \# m
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？1 _+ H+ ?; M% d$ W
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1 j) ]5 F3 P$ Q. Y% j% v. o0 E7 zturtles-own [ energy ], T P, }9 H2 R. h0 O
to setup
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! Z) I; }' k! B; H7 `9 e/ S$ c0 [set-default-shape turtles "square"
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ask turtles[
- x' M! z4 x0 t6 X- K3 w8 m set color white
1 e8 {# P# g5 n% o setxy random-pxcor random-pycor]# Q" Z$ H% e& c& U3 W% S" K
* y7 x3 w: [9 Q& V6 h2 V) ~. Task n-of microbes-initialization patches+ f' r1 E4 U4 ] `( h
[ set pcolor green]
2 v- P( Q. b& K+ s ask turtles [set energy 1]
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to go
6 ~8 ?0 @ @& w9 O' E3 \ ask turtles [set heading 90 * random 4 fd 1]
6 D# J2 H; U- O9 x# X9 w ask patches with [ any? turtles-here]
/ L1 j5 e6 q) _7 v% X4 } [ if pcolor = green and random 100 < chance-of-congregating [tt ]]
) e8 A" ?1 ~& E# L) O! _8 X ask turtles [ if energy = 0 [die ]]
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ask patches [set pcolor gray ]
9 y. m# E% u7 G/ rask turtles [set energy energy - 1]% z. _3 u+ m2 s9 V- @
end
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发表于 2008-4-8 10:49:43
楼主
