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|
module Struct.Tile exposing
(
Ref,
Type,
Instance,
new,
new_instance,
error_tile_instance,
get_id,
get_name,
get_range_minimum,
get_range_maximum,
get_cost,
get_instance_cost,
get_location,
get_icon_id,
get_type_id,
get_variant_id,
solve_tile_instance,
decoder
)
-- Elm -------------------------------------------------------------------------
import List
import Json.Decode
import Json.Decode.Pipeline
-- Map -------------------------------------------------------------------
import Constants.UI
import Constants.Movement
import Struct.Location
--------------------------------------------------------------------------------
-- TYPES -----------------------------------------------------------------------
--------------------------------------------------------------------------------
type alias Ref = Int
type alias PartiallyDecoded =
{
id : Int,
nam : String,
ct : Int,
rmi : Int,
rma : Int
}
type alias Type =
{
id : Int,
name : String,
crossing_cost : Int,
range_minimum : Int,
range_maximum : Int
}
type alias Instance =
{
location : Struct.Location.Type,
icon_id : Int,
crossing_cost : Int,
type_id : Int
}
--------------------------------------------------------------------------------
-- LOCAL -----------------------------------------------------------------------
--------------------------------------------------------------------------------
noise_function : Int -> Int -> Int -> Int
noise_function a b c =
(round (radians (toFloat ((a + 1) * 2 + (b + 1) * 3 + c))))
finish_decoding : PartiallyDecoded -> Type
finish_decoding add_tile =
{
id = add_tile.id,
name = add_tile.nam,
crossing_cost = add_tile.ct,
range_minimum = add_tile.rmi,
range_maximum = add_tile.rma
}
seek_tile_instance_type : Instance -> Type -> (Maybe Type) -> (Maybe Type)
seek_tile_instance_type instance candidate current_sol =
if (current_sol == Nothing)
then
let
icon_id = instance.icon_id
in
if
(
(icon_id >= candidate.range_minimum)
&& (icon_id <= candidate.range_maximum)
)
then
(Just candidate)
else
current_sol
else
current_sol
--------------------------------------------------------------------------------
-- EXPORTED --------------------------------------------------------------------
--------------------------------------------------------------------------------
new : Int -> String -> Int -> Int -> Int -> Type
new id name crossing_cost range_minimum range_maximum =
{
id = id,
name = name,
crossing_cost = crossing_cost,
range_minimum = range_minimum,
range_maximum = range_maximum
}
new_instance : Int -> Int -> Int -> Int -> Int -> Instance
new_instance x y icon_id crossing_cost type_id =
{
location = {x = x, y = y},
icon_id = icon_id,
crossing_cost = crossing_cost,
type_id = type_id
}
error_tile_instance : Int -> Int -> Instance
error_tile_instance x y =
{
location = {x = x, y = y},
icon_id = -1,
type_id = -1,
crossing_cost = Constants.Movement.cost_when_out_of_bounds
}
get_id : Type -> Int
get_id tile = tile.id
get_cost : Type -> Int
get_cost tile = tile.crossing_cost
get_instance_cost : Instance -> Int
get_instance_cost tile_inst = tile_inst.crossing_cost
get_name : Type -> String
get_name tile = tile.name
get_range_minimum : Type -> Int
get_range_minimum tile = tile.range_minimum
get_range_maximum : Type -> Int
get_range_maximum tile = tile.range_maximum
get_location : Instance -> Struct.Location.Type
get_location tile_inst = tile_inst.location
get_icon_id : Instance -> String
get_icon_id tile_inst = (toString tile_inst.icon_id)
get_type_id: Instance -> Int
get_type_id tile_inst = tile_inst.type_id
get_variant_id : Instance -> Int
get_variant_id tile_inst =
(
(noise_function
tile_inst.location.x
tile_inst.location.y
tile_inst.crossing_cost
)
% Constants.UI.variants_per_tile
)
solve_tile_instance : (List Type) -> Instance -> Instance
solve_tile_instance tiles tile_instance =
let
maybe_type =
(List.foldr (seek_tile_instance_type tile_instance) Nothing tiles)
in
case maybe_type of
(Just tile) ->
{tile_instance |
type_id = tile.id,
crossing_cost = tile.crossing_cost
}
Nothing ->
(error_tile_instance
tile_instance.location.x
tile_instance.location.y
)
decoder : (Json.Decode.Decoder Type)
decoder =
(Json.Decode.map
(finish_decoding)
(Json.Decode.Pipeline.decode
PartiallyDecoded
|> (Json.Decode.Pipeline.required "id" Json.Decode.int)
|> (Json.Decode.Pipeline.required "nam" Json.Decode.string)
|> (Json.Decode.Pipeline.required "ct" Json.Decode.int)
|> (Json.Decode.Pipeline.required "rmi" Json.Decode.int)
|> (Json.Decode.Pipeline.required "rma" Json.Decode.int)
)
)
|
