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|
module Chelleport where
import Chelleport.AppShell (MonadAppShell (hideWindow, showWindow, shutdownApp), setupAppShell)
import Chelleport.Context (initializeContext)
import Chelleport.Control
( MonadControl (clickMouseButton, getMousePointerPosition, moveMousePointer, pressMouseButton, releaseMouseButton),
directionalIncrement,
eventToKeycode,
isKeyPressWith,
isKeyPressed,
isKeyReleaseWith,
withCtrl,
withShift,
)
import Chelleport.Draw (MonadDraw (windowPosition), cellSize)
import Chelleport.KeySequence (findMatchPosition, generateGrid, isKeycodeDigit, isValidKey, keycodeToInt, nextChars, toKeyChar)
import Chelleport.Types
import Chelleport.Utils (intToCInt)
import qualified Chelleport.View
import Control.Monad (forM_)
import Control.Monad.IO.Class (MonadIO)
import Control.Monad.Reader (ReaderT (runReaderT))
import Data.Maybe (fromMaybe, isJust)
import qualified SDL
run :: IO ()
run = do
ctx <- initializeContext
runAppWithCtx ctx $
setupAppShell
ctx
initialState
update
(const eventHandler)
Chelleport.View.render
where
runAppWithCtx :: (MonadIO m) => DrawContext -> AppM m x -> m x
runAppWithCtx ctx action = runReaderT (runAppM action) ctx
initialState :: (Monad m) => m State
initialState = do
let cells = fromMaybe (pure undefined) $ generateGrid 0 (rows, columns) hintKeys
pure $
State
{ stateGrid = cells,
stateKeySequence = [],
stateIsMatched = False,
stateIsShiftPressed = False,
stateIsDragging = False,
stateRepetition = 1
}
where
rows = 9
columns = 16
hintKeys = ['A' .. 'Z']
eventHandler :: SDL.Event -> Maybe AppAction
eventHandler event =
case SDL.eventPayload event of
SDL.QuitEvent -> Just ShutdownApp
SDL.KeyboardEvent ev
-- Escape
| isKeyPressWith ev SDL.KeycodeEscape ->
Just ShutdownApp
-- minus / underscore
| isKeyPressWith ev SDL.KeycodeMinus || isKeyPressWith ev SDL.KeycodeUnderscore ->
if withShift ev
then Just $ ChainMouseClick RightClick
else Just $ TriggerMouseClick RightClick
-- 0-9
| isKeycodeDigit (eventToKeycode ev) ->
Just $ UpdateRepetition (fromMaybe 0 $ keycodeToInt $ eventToKeycode ev)
-- Space / Shift+Space
| isKeyPressWith ev SDL.KeycodeSpace ->
if withShift ev
then Just $ ChainMouseClick LeftClick
else Just $ TriggerMouseClick LeftClick
-- Tab / Backspace
| isKeyPressWith ev SDL.KeycodeTab || isKeyPressWith ev SDL.KeycodeBackspace ->
Just ResetKeys
-- Ctrl + V
| withCtrl ev && isKeyPressWith ev SDL.KeycodeV ->
Just MouseDragToggle
-- A-Z
| isKeyPressed ev && isValidKey (eventToKeycode ev) ->
Just $ HandleKeyInput $ eventToKeycode ev
-- Shift press
| isKeyPressWith ev SDL.KeycodeLShift || isKeyPressWith ev SDL.KeycodeRShift ->
Just $ UpdateShiftState True
-- Shift release
| isKeyReleaseWith ev SDL.KeycodeLShift || isKeyReleaseWith ev SDL.KeycodeRShift ->
Just $ UpdateShiftState False
_ -> Nothing
update :: (MonadAppShell m, MonadDraw m, MonadControl m) => State -> AppAction -> m (State, Maybe AppAction)
-- Act on key inputs
update state (HandleKeyInput key) = do
case (toKeyChar key, validChars) of
(Just keyChar, Just validChars')
| stateIsMatched state && keyChar `elem` ("HJKL" :: String) -> do
incr <- incrementValue
let action = IncrementMouseCursor $ directionalIncrement incr keyChar
pure (state, Just action)
| keyChar `elem` validChars' -> do
let newKeySequence = stateKeySequence state ++ [keyChar]
let matchPosition = findMatchPosition newKeySequence $ stateGrid state
let state' = state {stateKeySequence = newKeySequence, stateIsMatched = isJust matchPosition}
pure (state', MoveMousePosition <$> matchPosition)
_ -> pure (state, Nothing)
where
validChars = nextChars (stateKeySequence state) (stateGrid state)
incrementValue = do
(wcell, hcell) <- cellSize state
if stateIsShiftPressed state
then pure (wcell `div` 4, hcell `div` 4)
else pure (wcell `div` 16, hcell `div` 16)
-- Move mouse incrementally
update state (IncrementMouseCursor (incX, incY)) = do
(curX, curY) <- getMousePointerPosition
let count = intToCInt $ case stateRepetition state of 0 -> 1; n -> n
moveMousePointer (curX + count * intToCInt incX) (curY + count * intToCInt incY)
pure (state {stateRepetition = 1}, Nothing)
-- Move mouse to given position
update state (MoveMousePosition (row, col)) = do
(x, y) <- getPosition
moveMousePointer x y
pure (state, Nothing)
where
getPosition = do
(wcell, hcell) <- cellSize state
let x = (wcell `div` 2) + wcell * intToCInt col
let y = (hcell `div` 2) + hcell * intToCInt row
(winx, winy) <- windowPosition
pure (winx + x, winy + y)
-- Reset entered key sequence and state
update state ResetKeys = do
pure (state {stateKeySequence = [], stateIsMatched = False, stateRepetition = 1}, Nothing)
-- Trigger click
update state (TriggerMouseClick btn) = do
hideWindow
let count = case stateRepetition state of 0 -> 1; n -> n
forM_ [1 .. count] $ \_ -> do
clickMouseButton btn
pure (state {stateRepetition = 1}, Just ShutdownApp)
-- Chain clicks
update state (ChainMouseClick btn) = do
hideWindow
let count = case stateRepetition state of 0 -> 1; n -> n
forM_ [1 .. count] $ \_ -> do
clickMouseButton btn
showWindow
pure (state {stateRepetition = 1}, Just ResetKeys)
-- Cleanup everything and exit
update state ShutdownApp = do
shutdownApp
pure (state, Nothing)
-- Mouse dragging
update state MouseDragToggle
| stateIsDragging state = pure (state {stateIsDragging = False}, Just MouseDragEnd)
| otherwise = do pure (state {stateIsDragging = True}, Just MouseDragStart)
-- Mouse button press
update state MouseDragStart = do
hideWindow
pressMouseButton
showWindow
pure (state {stateRepetition = 1}, Nothing)
-- Mouse button release
update state MouseDragEnd = do
hideWindow
releaseMouseButton
showWindow
pure (state {stateRepetition = 1}, Nothing)
-- Set repetition count
update state (UpdateRepetition count) = do
pure (state {stateRepetition = count}, Nothing)
-- Set/unset whether shift is pressed
update state (UpdateShiftState shift) =
pure (state {stateIsShiftPressed = shift}, Nothing)
|
