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+--- Thread: How to return different regions depending on the player number? (/showthread.php?tid=1537)
How to return different regions depending on the player number? - RubixOne - 04-11-2023
I need help figuring out how to return different regions depending on the. input.
Here is the base function I am trying to modify (the Two Pawns function for Yonin Shogi, which needs fixed):
(define "OnePawnPerColumn"
(=
(count Sites in:(sites Occupied by:#1 container:"Board" component:"Fuhyo"))
(count Sites in:(difference (sites Occupied by:#1 container:"Board" component:"Fuhyo") (sites Column (column of:(to)))))
)
)
I want "(sites Column (column of:(to)))" to be "(sites Row (row of:(to)))" when #1 is even.
RE: How to return different regions depending on the player number? - dale walton - 04-12-2023
The documentation shows if is valid for booleans. I have had problems with it sometimes, but in theory:
(define "OnePawnPerColumn"
(if
(= 0 (% #1 2)) // #1 is even
(=
(count Sites in:(sites Occupied by:#1 container:"Board" component:"Fuhyo"))
(count Sites in:(difference (sites Occupied by:#1 container:"Board" component:"Fuhyo") (sites Row (row of:(to)))))
)
(=
(count Sites in:(sites Occupied by:#1 container:"Board" component:"Fuhyo"))
(count Sites in:(difference (sites Occupied by:#1 container:"Board" component:"Fuhyo") (sites Column (column of:(to)))))
) ) )
If not, you could use:
(define "OnePawnPerColumn"
(or
(and
(= 0 (% #1 2)) // #1 is even
(=
(count Sites in:(sites Occupied by:#1 container:"Board" component:"Fuhyo"))
(count Sites in:(difference (sites Occupied by:#1 container:"Board" component:"Fuhyo") (sites Row (row of:(to)))))
) )
(and
(= 1 (% #1 2)) // #1 is odd
(=
(count Sites in:(sites Occupied by:#1 container:"Board" component:"Fuhyo"))
(count Sites in:(difference (sites Occupied by:#1 container:"Board" component:"Fuhyo") (sites Column (column of:(to)))))
) ) ) )
RE: How to return different regions depending on the player number? - RubixOne - 04-12-2023
These work in theory, but if I try to compile Yonin Shogi.lud with either of these functions implemented, Ludii spits out this error message:
Unexpected syntax 'Mover' in '(% Mover 2)'.
Edit: I see what is going on. It needs Mover for the rule enforcement portion and (mover) for the modulus operation. Thanks for the help.
Edit: It works now, but now I noticed another bug, and as luck would have it, it involves the Drop Pawn Mate rule, specifically for the players who are not next in line to move.
Edit: I still can't believe it, but I actually managed to fix the Drop Pawn Mate bug all by myself:
// Fixed PlacePawn by RubixOne
(define "PlacePawn"
(do
(move
(from (sites Occupied by:#1 container:"Hand" component:"Fuhyo"))
(to (difference (sites Empty) (sites #1 "LastRank"))
if:("OnePawnPerColumn" #1 #2)
)
)
ifAfterwards:(not (or {
(and ("IsInCheck" "Osho" P1) ("CanNotMove" P1 1))
(and ("IsInCheck" "Osho" P2) ("CanNotMove" P2 2))
(and ("IsInCheck" "Osho" P3) ("CanNotMove" P3 3))
(and ("IsInCheck" "Osho" P4) ("CanNotMove" P4 4))
}))
)
)
RE: How to return different regions depending on the player number? - dale walton - 04-13-2023
Right.
If using 1, 2 or (mover), use (sites Occupied by:(player #1) ...
If using P1, P2 or Mover, use (= 0 (% (id #1) 2))
Do you need to pass Mover into the define or can you simply put in (mover) and Mover instead of #1 at the appropriate places?
RE: How to return different regions depending on the player number? - RubixOne - 05-01-2023
I solved it by just using an extra parameter for the (mover) attribute.