Writing an if statement depending on an attribute of an agent to command agents of a different agentset

Question

I am trying to make an agentset do something, if an agent(of a different agentset) has a particular shape.

Here, if the shape of a particular

• ghost (say Ghost 1) is circle,

• then all rabbits are supposed to move forward 1. (<-This is the intended behavior)

where

• ghosts are agentset A
• rabbits are agentset B

I have tried along these lines:

ask rabbits
[
 if (shape ghost 1 = "circle")
  [
   forward 1
  ]
]

For this code I get,

"Expected a closing paranthesis here."

with a highlighter on ghost. I'm aware that this code is wrong but I can't think of how else this should be written to get the desired result.

Answer 1

This will (I think - can't test) get the syntax correct:

ask rabbits
[
 if ([shape] of ghost 1 = "circle")
  [
   forward 1
  ]
]

but you also have an ordering error and will have every rabbit check the shape of chost 1. I think what you really want is:

if ([shape] of ghost 1 = "circle")
[ ask rabbits
  [ forward 1
  ]
]