haskelloids/src/Menu.hs
2017-12-19 06:49:41 +01:00

113 lines
2.8 KiB
Haskell

module Menu where
import Affection as A
import qualified SDL
import Debug.Trace
import Data.Maybe
import Control.Monad (when)
import Control.Monad.IO.Class (liftIO)
import qualified Data.Map as M
import NanoVG hiding (V2(..))
import Linear
import Foreign.C.Types
-- internal imports
import Types
import Commons
handleMenuEvent :: (Affection UserData ()) -> [SDL.EventPayload] -> Affection UserData ()
handleMenuEvent _ es = do
(Subsystems w k) <- subsystems <$> getAffection
_ <- consumeSDLEvents w =<< consumeSDLEvents k es
return ()
loadMenu :: Affection UserData ()
loadMenu = do
liftIO $ logIO A.Debug "Loading Menu"
ud <- getAffection
mhaskImage <- liftIO $
createImage (nano ud) (FileName "assets/haskelloid.svg") 0
when (isNothing mhaskImage) $
liftIO $ logIO Error "Failed to load asset haskelloid"
hs <- newHaskelloids (fromJust mhaskImage)
_ <- partSubscribe (subKeyboard $ subsystems ud)
(\kbdev -> case SDL.keysymKeycode (msgKbdKeysym kbdev) of
SDL.KeycodeEscape -> do
liftIO $ logIO A.Debug "seeya"
quit
SDL.KeycodeF -> do
when (msgKbdKeyMotion kbdev == SDL.Pressed) $ do
liftIO $ logIO A.Debug "screen toggling"
toggleScreen
_ -> return ()
)
putAffection ud
{ haskelloids = hs
, fade = FadeIn 1
, state = Menu
-- , shots = (shots ud)
-- { partSysParts = ParticleStorage Nothing [] }
}
updateMenu :: Double -> Affection UserData ()
updateMenu sec = do
ud <- getAffection
let nhs = map (updateHaskelloid sec) (haskelloids ud)
case fade ud of
FadeIn ttl -> do
putAffection ud
{ fade = if (ttl - sec) > 0 then FadeIn (ttl - sec) else FadeOut 1
, haskelloids = nhs
}
FadeOut ttl -> do
putAffection ud
{ fade = if (ttl - sec) > 0 then FadeOut (ttl - sec) else FadeIn 1
, haskelloids = nhs
}
drawMenu :: Affection UserData ()
drawMenu = do
ud <- getAffection
let V2 sx sy = fmap (CFloat . realToFrac) (sPos $ ship ud)
liftIO $ do
save (nano ud)
sPaint <- imagePattern (nano ud) 400 300 20 20 0 (sImg $ ship ud) 255
beginPath (nano ud)
rect (nano ud) 400 300 20 20
fillPaint (nano ud) sPaint
fill (nano ud)
restore (nano ud)
dt <- getElapsedTime
liftIO $
drawSpinner (nano ud) 100 100 100 (CFloat $ realToFrac dt)
drawSpinner :: Context -> CFloat -> CFloat -> CFloat -> CFloat -> IO ()
drawSpinner vg cx cy r t = do
let a0 = 0+t*6
a1 = pi + t*6
r0 = r
r1 = r*0.75
save vg
beginPath vg
arc vg cx cy r0 a0 a1 CW
arc vg cx cy r1 a1 a0 CCW
closePath vg
let ax = cx+cos a0 * (r0+r1)*0.5
ay = cy+sin a0 * (r0+r1)*0.5
bx = cx+cos a1 * (r0+r1)*0.5
by = cy+sin a1 * (r0+r1)*0.5
paint <- linearGradient vg ax ay bx by (rgba 255 255 255 0) (rgba 255 255 255 128)
fillPaint vg paint
fill vg
restore vg