Octopus_Carnival/hosaka/cards.ml
Francesco Mecca 3beaec0cfd see todo
2019-08-19 18:24:38 +02:00

102 lines
3.1 KiB
OCaml

open List;;
(* Random.self_init ();; *)
type card_type =
| Hearts
| Tiles
| Clovers
| Pikes
| Nothing
let card_type_to_string = function
| Hearts -> "Hearts"
| Tiles -> "Tiles"
| Clovers -> "Clovers"
| Pikes-> "Pikes"
| Nothing-> "Nothing"
let string_to_card_type = function
| "Hearts" -> Hearts
| "Tiles" -> Tiles
| "Clovers" -> Clovers
| "Pikes" -> Pikes
| "Nothing" -> Nothing
| _ -> assert false
type card = { seed: card_type ; value: int }
let make seed value =
{ seed=seed; value=value }
let value_cmp a b = if a.value < b.value then -1 else if a.value = b.value then 0 else 1 (* TFW TODO *)
let seed_cmp = fun a b -> if card_type_to_string a.seed > card_type_to_string b.seed then 1 else
if card_type_to_string a.seed = card_type_to_string b.seed then 0 else -1
let make_set tp =
let rec range start _end accum = if start < _end then range (start+1) _end accum@[start] else accum in
List.map (fun x -> { seed=tp; value=x }) (range 1 14 []);; (* make a set of cards of one seed *)
let init =
List.concat [make_set Hearts ; make_set Tiles ; make_set Clovers ; make_set Pikes ;
make_set Hearts ; make_set Tiles ; make_set Clovers ; make_set Pikes] |>
List.map (fun e -> Random.bits (), e) |>
List.sort (fun a b -> if fst a > fst b then 1 else -1) |>
List.map snd
let draw deck = match deck with
| [] as l -> {seed=Nothing ; value=0}, l
| hd::tl -> hd, tl
let no_double_seed cards =
List.sort_uniq seed_cmp cards |> List.length = List.length cards
let is_only_one_seed cards =
List.sort_uniq seed_cmp cards |> List.length = 1
let no_double_value cards =
List.sort_uniq value_cmp cards |> List.length = List.length cards
let is_tris cards =
match (List.sort_uniq value_cmp cards) with
| [_] -> no_double_seed cards (* only one value, check for right seeds *)
| _::_ -> false
| [] -> assert false
let rec split l fst =
match l with
| hd::hd'::tl when hd=hd'-1 -> split (hd'::tl) (fst@[hd])
| hd::tl -> fst@[hd], tl
| [] -> assert false
let is_straight _cards =
let rec _is_straight cards =
match cards with
| hd::hd'::tl when hd=hd'-1 -> _is_straight (hd'::tl)
| [] -> assert false
| [_] -> true (* list was consumed *)
| _::_ -> false in
if (not (no_double_value _cards && is_only_one_seed _cards)) then
false
else
let ocards = List.sort value_cmp _cards in
let last = List.rev ocards |> hd in
let cards = List.map (fun c -> c.value) ocards (* use only values *) in
if last.value = 13 && (hd cards) = 1 then (* circolare *)
let fst, snd = split cards [] in (_is_straight fst) && (_is_straight snd)
else
(* let res = _is_straight cards in
* List.iter (fun c -> Printf.printf "%d:%s - " c.value (card_type_to_string c.seed)) _cards ; Printf.printf "%b\n" res;
* res *) (* TODO : remove *)
_is_straight cards
let is_valid _cards =
let cards = List.sort value_cmp _cards in
if List.length cards < 3 then
false
else
match cards with
| a::b::_ when value_cmp a b = 0 -> is_tris cards
| _ -> is_straight cards;;