How do you set a certain amount of patches a certain color?

Question

For example, like set the top ten layers of patches blue to make the sky?

Comments

You can use an "ifelse" or "if" statement. For example is used

;ground
ask patches [if pzcor = -16 [set pcolor 36]]
;river
ask patches [if pxcor > 5 and pxcor < 12 and pzcor = -16 [set pcolor blue]]

to make the ground and a river!

Answer 1

You can use the < and > signs and write the intervals that you want. For example

if pzcor <= -13 [ set pcolor brown - 3 + random 3]

Or

  if pzcor <= 13 and pzcor >= 10 [ set pcolor brown - 3 + random 3] 

Answer 2

try if this works

ask patches with [pzcor = -16 ]
 [
    set pcolor blue + random 3
  ]

and then repeat maybe

Answer 3

If you are looking to change the color of some patches, you also use:

if random 100 = 0 [
set pcolor list [0 0 255 30]
]

This is for a more translucent kind of look.

Comments

that worked for me.