Ludii Forum
03-27-2023, 02:02 AM
The count Groups counts the number of piece groups within the restrictions on to (the default condition of is Occupied (to) does not get overridden by the if: contents. Perhaps this is for backward compatibility.
It might be appropriate to create a new parameter instead:
(count Regions <Cells> <Adjacent> within:<region> excludeIf:<boolean>) This would give the number of disjoint regions within a region, not counting regions that met the boolean condition. Iterators (sites).
eg: Score a point for each region that each friendly group divides the board into, excluding fully surrounded regions:
(set Score Mover 0
(then
(forEach Group
if:(is Mover (who at:(to)))
(addScore Mover
(count Regions
within:(sites Around (sites)) // this (sites) refers to Group iterator above
excludeIf:(= 0 (size Array (array (intersection (sites) (sites Outer))))) // this (sites) refers to sites in each disjoint sub-region
)))))
Being able to use (sites) for the sub-region exclusion would be more intuitive than using (to) as (to) conditions would likey be misunderstood to be exclusions of sites in the sub-region, rather than exclusions of the entire sub-region in which they occurred. - as well as being much more difficult to formulate for the given example.
It might be appropriate to create a new parameter instead:
(count Regions <Cells> <Adjacent> within:<region> excludeIf:<boolean>) This would give the number of disjoint regions within a region, not counting regions that met the boolean condition. Iterators (sites).
eg: Score a point for each region that each friendly group divides the board into, excluding fully surrounded regions:
(set Score Mover 0
(then
(forEach Group
if:(is Mover (who at:(to)))
(addScore Mover
(count Regions
within:(sites Around (sites)) // this (sites) refers to Group iterator above
excludeIf:(= 0 (size Array (array (intersection (sites) (sites Outer))))) // this (sites) refers to sites in each disjoint sub-region
)))))
Being able to use (sites) for the sub-region exclusion would be more intuitive than using (to) as (to) conditions would likey be misunderstood to be exclusions of sites in the sub-region, rather than exclusions of the entire sub-region in which they occurred. - as well as being much more difficult to formulate for the given example.