我编的程序如下turtles-own [energy]
* ?3 N- }, [! d# {" tto setup3 g" P" u$ G- C( ]2 }5 D
clear-all
9 \$ X+ P+ y4 r M5 T. m setup-patches
^- k u5 {* r# [1 p7 B! k create-turtles 100
8 }2 P+ l5 G8 {% ^" s. a do-plots! z3 w" J; \6 f4 L/ Q5 I; ]
ask turtles [ setxy random-xcor random-ycor ]
+ t# p+ {& r# K! N* n: c0 G8 kend% o1 i* q/ d/ w1 y- J
to go
# E0 w* F5 y' C8 v9 x4 }0 i move-turtles) X. R/ C% G O9 l! H
eat-grass
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check-death
2 L! G. b9 ]5 S' o regrow-grass8 w; @7 z8 u/ A+ r9 g
do-plots) R+ p$ a: G1 P
end
$ w5 V5 S* }; ]+ W% [! ~8 pto move-turtles0 r3 L9 H9 g+ i$ U) d* ?4 L
ask turtles [6 v% ?( D/ l2 N
right random 360( G7 ~, e3 h5 H8 _* e
forward 1( v5 Q, U6 X* b4 c% P
set energy energy - 1
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end
T3 u9 n% j, z* j" a R" xto setup-patches( @; l, b6 G6 b
ask patches [ set pcolor green ]+ D, U! n" U; S7 _
end
. @- I0 Q" f2 n1 F, y: Wto setup-turtles
1 [) g1 O1 o s9 @& B create-turtles 100
) V+ B7 N: T6 x' j, k ask turtles [ setxy random-xcor random-ycor ]
/ q) I4 w h" i8 Jend
/ M0 P. [6 d5 o" Q, vto eat-grass% E. _) Z: |8 p# c7 f, `4 z0 t
ask turtles [7 ~) ?' i9 w" O7 q8 X
if pcolor = green [
/ `! \5 G& m8 v' Q. s set pcolor black* e1 }. @9 D9 \% t9 F$ @
set energy (energy + 10)
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ifelse show-energy?
0 ]/ j' }4 N9 ` [ set label energy ]
* v6 c+ \& _6 U a( D8 R- e, h [ set label "" ]
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end0 S$ z, a6 _ @+ ~4 m# z' @1 O
to reproduce S& u; G7 B4 b
ask turtles [
1 }7 v8 K: l7 Z- R9 f4 u; w* t# E if energy > 50 [) `( Q% z2 w( K! }( G' I
set energy energy - 50
: o5 ~. E, n, l$ v3 G% H w4 X hatch 1 [ set energy 50 ]* _- {3 ?, A( L" P$ r
]
' n- s/ U* V2 H ]
2 X& o2 [5 Y% b+ `end
* A/ ^2 `! N0 cto check-death
) W, z* @! {# V4 E3 [# [$ Q ask turtles [
q5 ^: J0 a" [5 y( O: |) g# l if energy <= 0 [ die ]" z" i: {$ H* l0 j& g
]
2 j! V/ U- z7 Z& j2 P% p+ i; Iend: d( ]; X+ n$ p0 O; z
to regrow-grass
1 L* G3 j9 I. c) S2 W# W/ y2 P! E) J9 g4 i ask patches [
+ z0 E( F3 i D4 L if random 100 < 3 [ set pcolor green ]
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end: M; ], ]7 g; J
to do-plots2 [9 f: k" j" P" K6 ~( ~) B8 a
set-current-plot "Totals") q i% g; ~: i8 c- O) N( L
set-current-plot-pen "turtles"
% U2 U9 V( g4 r# a plot count turtles* I* z8 b, W/ u
set-current-plot-pen "grass"
& B: v3 m- a g( F3 C/ L plot count patches with [pcolor = green]
$ k# p9 ]+ i9 b! t! lend8 {1 o+ S) h" W
可是运行时提示no such plot: "Totals"
D6 M* f& Q" {, ~ o, xerror while observer running SET-CURRENT-PLOT1 J# A9 O& C7 b6 Y/ I I
called by procedure DO-PLOTS, A7 ?' b. Z$ `5 Q: A& N. J4 x
called by procedure SETUP9 z" m2 u2 h) y# Q. ]
called by 按钮 'setup'
& b2 Q0 r- h8 E$ b, C4 W) h* @' d8 y求大神解答啊 |
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楼主
发表于 2013-5-29 00:25:38
