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|
module BattleMap.Struct.Marker exposing
(
Type,
new,
get_locations,
set_locations,
is_in_locations,
decoder,
encode
)
-- Elm -------------------------------------------------------------------------
import Set
import Json.Decode
import Json.Encode
import List
-- Battle Map ------------------------------------------------------------------
import BattleMap.Struct.Location
--------------------------------------------------------------------------------
-- TYPES -----------------------------------------------------------------------
--------------------------------------------------------------------------------
type alias MeleeAttackZoneStruct =
{
character_ix : Int
}
type alias SpawnZoneStruct =
{
player_ix : Int
}
type DataType =
MeleeAttackZone MeleeAttackZoneStruct
| SpawnZone SpawnZoneStruct
| None
type alias Type =
{
locations : (Set.Set BattleMap.Struct.Location.Ref),
data : DataType
}
--------------------------------------------------------------------------------
-- LOCAL -----------------------------------------------------------------------
--------------------------------------------------------------------------------
decoder_internals : String -> (Json.Decode.Decoder DataType)
decoder_internals t =
case t of
"matk" ->
(Json.Decode.map
(\e -> (MeleeAttackZone e))
(Json.Decode.map
MeleeAttackZoneStruct
(Json.Decode.field "cix" (Json.Decode.int))
)
)
"spawn" ->
(Json.Decode.map
(\e -> (SpawnZone e))
(Json.Decode.map
SpawnZoneStruct
(Json.Decode.field "pix" (Json.Decode.int))
)
)
_ -> (Json.Decode.succeed None)
--------------------------------------------------------------------------------
-- EXPORTED --------------------------------------------------------------------
--------------------------------------------------------------------------------
new : Type
new =
{
locations = (Set.empty),
data = None
}
get_locations : Type -> (Set.Set BattleMap.Struct.Location.Ref)
get_locations marker = marker.locations
set_locations : (Set.Set BattleMap.Struct.Location.Ref) -> Type -> Type
set_locations locations marker = {marker | locations = locations}
is_in_locations : BattleMap.Struct.Location.Ref -> Type -> Bool
is_in_locations loc_ref marker = (Set.member loc_ref marker.locations)
decoder : (Json.Decode.Decoder Type)
decoder =
(Json.Decode.map2
Type
(Json.Decode.field
"l"
(Json.Decode.map
(Set.fromList)
(Json.Decode.list
(Json.Decode.map
(BattleMap.Struct.Location.get_ref)
(BattleMap.Struct.Location.decoder)
)
)
)
)
(Json.Decode.andThen
(decoder_internals)
(Json.Decode.field "t" (Json.Decode.string))
)
)
encode : Type -> Json.Encode.Value
encode marker =
(Json.Encode.object
[
(
"l",
(Json.Encode.list
(\e ->
(BattleMap.Struct.Location.encode
(BattleMap.Struct.Location.from_ref e)
)
)
(Set.toList marker.locations)
)
),
(
"d",
(
case marker.data of
SpawnZone zone ->
(Json.Encode.object
[
("t", (Json.Encode.string "spawn")),
("pix", (Json.Encode.int zone.player_ix))
]
)
MeleeAttackZone zone ->
(Json.Encode.object
[
("t", (Json.Encode.string "matk")),
("cix", (Json.Encode.int zone.character_ix))
]
)
None ->
(Json.Encode.object
[
("t", (Json.Encode.string "none"))
]
)
)
)
]
)
|
