Netlogo 随机 ycor

Question

如何使随机 ycor 高于/低于某个值？我有交通 2 样本，我在草地上添加了一些羊，但我希望它们重生，并且只在草地上随机重生，而不是在路上。应该怎么做我改变了，让羊永远不能上街？

breed [sheeps sheep]

to setup
  clear-all
  draw-road
  setup-vans
  create-or-remove-cars
  set selected-car one-of turtles
  ask selected-car [ set color red ]
  set selected-van one-of turtles
  ask selected-van [ set color red ]
  reset-ticks
  set-default-shape turtles "sheep"
  create-sheeps number-of-sheeps [ 
    set color white
    set xcor random-pxcor
    set ycor -4
    set energy random 10
  ]
end



to-report free [ road-patches ] ; turtle procedure
  let this-car self
  report road-patches with [
    not any? turtles-here with [ self != this-car ]
  ]
end



to go

  ask turtles [ move-forward ]

  ask turtles with [ ycor != target-lane ] [ move-to-target-lane ]
  ask sheeps
  [
    move
    forward 1
  ]
  tick
end
to move  
  rt random 100
  lt random 100
  fd 20
  set energy energy - 0.5
end

Answer 1

您有两个问题。先回答一下吧。

set ycor some-value + random-float (max-pycor + 0.5 - some-value)

其中 some-value 是您希望 pycor 大于的值。同样，

set ycor some-value - random-float (some-value - min-pycor - 0.5)

其中 some-value 是您希望 pycor 小于的值。 max-pycor + 0.5 是 ycor 的最大可能值，min-pycor - 0.5 是最小可能值。