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|
module Update exposing (update, Msg(..))
import Model exposing (Model, model)
import Battlemap exposing (apply_to_all_tiles, apply_to_tile_unsafe)
import Battlemap.Direction exposing (Direction)
import Battlemap.Navigator as Nr exposing (go, reset_navigation)
import Dict as Dt exposing (get, update)
import Character exposing (CharacterRef)
type Msg =
DirectionRequest Direction
| SelectCharacter CharacterRef
| EndTurn
handle_direction_request : Model -> Direction -> Model
handle_direction_request model dir =
(case (model.selection, model.navigator) of
(Nothing, _) -> model
(_ , Nothing) -> model
((Just char_id), (Just nav)) ->
let
(new_bmap, new_nav) =
(Nr.go
model.battlemap
nav
dir
)
in
{model |
battlemap = new_bmap,
navigator = (Just new_nav)
}
)
handle_select_character : Model -> CharacterRef -> Model
handle_select_character model char_id =
{model |
selection = (Just char_id),
battlemap =
(apply_to_all_tiles
model.battlemap
(reset_navigation)
),
navigator =
(case (Dt.get char_id model.characters) of
Nothing -> Nothing
(Just char) ->
(Just (Nr.new_navigator char.location))
)
}
handle_end_turn : Model -> Model
handle_end_turn model =
case (model.navigator, model.selection) of
(_, Nothing) -> model
(Nothing, _) -> model
((Just nav), (Just char_id)) ->
(case (Dt.get char_id model.characters) of
Nothing -> model
(Just char) ->
{model |
navigator =
(Just (Nr.new_navigator nav.current_location)),
battlemap =
(apply_to_all_tiles
(apply_to_tile_unsafe
(apply_to_tile_unsafe
model.battlemap
char.location
(\t -> {t | char_level = Nothing})
)
nav.current_location
(\t -> {t | char_level = (Just char_id)})
)
(reset_navigation)
),
characters =
(Dt.update
char_id
(\mc ->
case mc of
Nothing -> Nothing
(Just c) ->
(Just {c | location = nav.current_location})
)
model.characters
)
}
)
update : Msg -> Model -> Model
update msg model =
case msg of
(DirectionRequest d) ->
(handle_direction_request model d)
(SelectCharacter char_id) ->
(handle_select_character model char_id)
EndTurn ->
(handle_end_turn model)
--_ -> model
|
