请问：1 C7 ^. `; ~( K7 y' [" k( I( c
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？, i3 e l4 F9 h
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turtles-own [ energy ]
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clear-all# K/ y0 ~ x, {
set-default-shape turtles "square"
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ask turtles[1 K; n {2 a+ p* W
set color white
3 x' j9 }6 t! O ]% D2 \$ g5 J7 J6 k setxy random-pxcor random-pycor]
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ask n-of microbes-initialization patches
1 Z4 R9 c. l. @5 ? [ set pcolor green]
" _) U& ?& W! O$ v: R" v ask turtles [set energy 1]
. H$ _ v5 P% fend
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- D, \* P0 M8 Q- L' pto go
8 t& ]6 t" d- E: } ask turtles [set heading 90 * random 4 fd 1], m6 Q, i8 V& [, O" ^5 I% \
ask patches with [ any? turtles-here]- C5 M/ T- J5 f' y+ S/ q
[ if pcolor = green and random 100 < chance-of-congregating [tt ]]
/ Z+ U% z# i I1 m8 p6 \) } ask turtles [ if energy = 0 [die ]]
0 J, O/ c: I" E2 M* U# Z# Z end
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to tt ]& d- N: X, y
ask patches [set pcolor gray ]
! {+ l$ @4 R4 H7 p: h4 pask turtles [set energy energy - 1]
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发表于 2008-4-8 10:49:43
楼主
