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|
module Update.Story exposing
(
start,
select_choice,
handle_prompt_input
)
-- Elm -------------------------------------------------------------------------
import Array
import Html
-- Local Module ----------------------------------------------------------------
import Struct.Event
import Struct.Model
import Struct.UI
import Util.TonkadurToHtml
-- Tonkadur --------------------------------------------------------------------
import Tonkadur.Execute
import Tonkadur.Types
--------------------------------------------------------------------------------
-- TYPES -----------------------------------------------------------------------
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
-- LOCAL -----------------------------------------------------------------------
--------------------------------------------------------------------------------
step : Struct.Model.Type -> Struct.Model.Type
step model =
case model.tonkadur.last_instruction_effect of
Tonkadur.Types.MustContinue ->
case (Array.get model.tonkadur.program_counter model.tonkadur.code) of
(Just instruction) ->
(step
{model |
tonkadur =
(Tonkadur.Execute.execute instruction model.tonkadur)
}
)
Nothing ->
{model |
ui =
(Struct.UI.display_string_error
(
"[Programming error] Cannot 'step' Tonkadur story:"
++ " Not in MustContinue state."
)
model.ui
)
}
Tonkadur.Types.MustEnd -> model -- TODO, although that might be right.
(Tonkadur.Types.MustPromptCommand min max label) ->
{model |
tonkadur = (Tonkadur.Types.allow_continuing model.tonkadur),
ui =
(Struct.UI.prompt_command
(Tonkadur.Types.value_to_int min)
(Tonkadur.Types.value_to_int max)
(Struct.UI.display_text
(Util.TonkadurToHtml.convert label)
model.ui
)
)
}
(Tonkadur.Types.MustPromptFloat min max label) ->
{model |
tonkadur = (Tonkadur.Types.allow_continuing model.tonkadur),
ui =
(Struct.UI.prompt_float
(Tonkadur.Types.value_to_float min)
(Tonkadur.Types.value_to_float max)
(Struct.UI.display_text
(Util.TonkadurToHtml.convert label)
model.ui
)
)
}
(Tonkadur.Types.MustPromptInteger min max label) ->
{model |
tonkadur = (Tonkadur.Types.allow_continuing model.tonkadur),
ui =
(Struct.UI.prompt_integer
(Tonkadur.Types.value_to_int min)
(Tonkadur.Types.value_to_int max)
(Struct.UI.display_text
(Util.TonkadurToHtml.convert label)
model.ui
)
)
}
(Tonkadur.Types.MustPromptString min max label) ->
{model |
tonkadur = (Tonkadur.Types.allow_continuing model.tonkadur),
ui =
(Struct.UI.prompt_string
(Tonkadur.Types.value_to_int min)
(Tonkadur.Types.value_to_int max)
(Struct.UI.display_text
(Util.TonkadurToHtml.convert label)
model.ui
)
)
}
Tonkadur.Types.MustPromptChoice ->
let
(last_ix, new_ui) =
(List.foldl
(\option (ix, ui) ->
case option of
(Tonkadur.Types.TextOption rich_text) ->
(
(ix + 1),
(Struct.UI.display_choice
ix
(Util.TonkadurToHtml.convert
(Tonkadur.Types.TextValue rich_text)
)
ui
)
)
_ -> ((ix + 1), ui)
)
(0, model.ui)
model.tonkadur.available_options
)
in
{model |
tonkadur = (Tonkadur.Types.allow_continuing model.tonkadur),
ui = new_ui
}
(Tonkadur.Types.MustDisplay text) ->
(step
{model |
tonkadur = (Tonkadur.Types.allow_continuing model.tonkadur),
ui =
(Struct.UI.display_text
(Util.TonkadurToHtml.convert text)
model.ui
)
}
)
(Tonkadur.Types.MustDisplayError text) ->
(step
{model |
tonkadur = (Tonkadur.Types.allow_continuing model.tonkadur),
ui =
(Struct.UI.display_error
(Util.TonkadurToHtml.convert text)
model.ui
)
}
)
-- _ -> model
input_string : String -> Struct.Model.Type -> Struct.Model.Type
input_string string model =
let string_length = (String.length string) in
if ((string_length < model.ui.min) || (string_length > model.ui.max))
then
{model |
ui =
(Struct.UI.display_string_error
(
"Input string should be between "
++ (String.fromInt model.ui.min)
++ " and "
++ (String.fromInt model.ui.max)
++ " characters."
)
model.ui
)
}
else
(step
{model |
tonkadur =
(Tonkadur.Types.set_target_from_string
string
model.tonkadur
),
ui =
(Struct.UI.clear_prompt
(Struct.UI.display_prompt_content model.ui)
)
}
)
input_float : String -> Struct.Model.Type -> Struct.Model.Type
input_float string model =
case (String.toFloat string) of
Nothing ->
{model |
ui =
(Struct.UI.display_string_error
"Input expects a float."
model.ui
)
}
(Just float) ->
if ((float < model.ui.min_float) || (float > model.ui.max_float))
then
{model |
ui =
(Struct.UI.display_string_error
(
"Input float should be between "
++ (String.fromFloat model.ui.min_float)
++ " and "
++ (String.fromFloat model.ui.max_float)
++ "."
)
model.ui
)
}
else
(step
{model |
tonkadur =
(Tonkadur.Types.set_target_from_float
float
model.tonkadur
),
ui =
(Struct.UI.clear_prompt
(Struct.UI.display_prompt_content model.ui)
)
}
)
input_integer : String -> Struct.Model.Type -> Struct.Model.Type
input_integer string model =
case (String.toInt string) of
Nothing ->
{model |
ui =
(Struct.UI.display_string_error
"Input expects an integer."
model.ui
)
}
(Just int) ->
if ((int < model.ui.min) || (int > model.ui.max))
then
{model |
ui =
(Struct.UI.display_string_error
(
"Input integer should be between "
++ (String.fromInt model.ui.min)
++ " and "
++ (String.fromInt model.ui.max)
++ "."
)
model.ui
)
}
else
(step
{model |
tonkadur =
(Tonkadur.Types.set_target_from_integer
int
model.tonkadur
),
ui =
(Struct.UI.clear_prompt
(Struct.UI.display_prompt_content model.ui)
)
}
)
input_command : String -> Struct.Model.Type -> Struct.Model.Type
input_command string model =
let string_length = (String.length string) in
if ((string_length < model.ui.min) || (string_length > model.ui.max))
then
{model |
ui =
(Struct.UI.display_string_error
(
"Input string should be between "
++ (String.fromInt model.ui.min)
++ " and "
++ (String.fromInt model.ui.max)
++ " characters."
)
model.ui
)
}
else
(step
{model |
tonkadur =
(Tonkadur.Types.set_target_from_command
(String.words string)
model.tonkadur
),
ui =
(Struct.UI.clear_prompt
(Struct.UI.display_prompt_content model.ui)
)
}
)
--------------------------------------------------------------------------------
-- EXPORTED --------------------------------------------------------------------
--------------------------------------------------------------------------------
start : Struct.Model.Type -> Struct.Model.Type
start model = (step model)
select_choice : Int -> Struct.Model.Type -> Struct.Model.Type
select_choice ix model =
(step
{model |
tonkadur =
(Tonkadur.Types.clear_all_options
(Tonkadur.Types.set_last_choice_index
ix
model.tonkadur
)
),
ui =
(Struct.UI.clear_prompt
(Struct.UI.display_chosen_option_label ix model.ui)
)
}
)
handle_prompt_input : Struct.Model.Type -> Struct.Model.Type
handle_prompt_input model =
case model.ui.input of
Struct.UI.NoInput -> model
Struct.UI.FloatInput ->
(input_float (Struct.UI.get_field_content model.ui) model)
Struct.UI.IntegerInput ->
(input_integer (Struct.UI.get_field_content model.ui) model)
Struct.UI.StringInput ->
(input_string (Struct.UI.get_field_content model.ui) model)
Struct.UI.CommandInput ->
(input_command (Struct.UI.get_field_content model.ui) model)
|
