Refactor event handling. Allow mouse movement in menus

2021-04-07 21:59:44 +02:00
parent d42cb89dd2
commit 294f2509d0
12 changed files with 319 additions and 317 deletions
@@ -0,0 +1,152 @@
+{-# LANGUAGE DeriveGeneric #-}
+{-# LANGUAGE OverloadedStrings #-}
+module Dodge.LoadConfig.KeyConfig
+  where
+import Data.Aeson
+import Foreign.C.Types
+import GHC.Generics
+import qualified GHC.Int
+import qualified SDL
+import SDL.Internal.Numbered as SDL.Internal.Numbered
+
+import System.Directory
+
+data KeyConfig = KeyConfig
+  { moveUpBinding :: Int,
+    moveDownBinding :: Int,
+    moveLeftBinding :: Int,
+    moveRightBinding :: Int,
+    pauseBinding :: Int,
+    escapeBinding :: Int,
+    dropItemBinding :: Int,
+    toggleMapBinding :: Int,
+    reloadBinding :: Int,
+    testEventBinding :: Int,
+    spaceActionBinding :: Int,
+    rotateCameraPlusBinding :: Int,
+    rotateCameraMinusBinding :: Int,
+    zoomInBinding :: Int,
+    zoomOutBinding :: Int,
+    newBinding :: Int
+  }
+  deriving (Generic, Show)
+
+data KeyConfigSDL = KeyConfigSDL
+  { moveUpKey :: SDL.Scancode,
+    moveDownKey :: SDL.Scancode,
+    moveLeftKey :: SDL.Scancode,
+    moveRightKey :: SDL.Scancode,
+    pauseKey :: SDL.Scancode,
+    escapeKey :: SDL.Scancode,
+    dropItemKey :: SDL.Scancode,
+    toggleMapKey :: SDL.Scancode,
+    reloadKey :: SDL.Scancode,
+    testEventKey :: SDL.Scancode,
+    spaceActionKey :: SDL.Scancode,
+    rotateCameraPlusKey :: SDL.Scancode,
+    rotateCameraMinusKey :: SDL.Scancode,
+    zoomInKey :: SDL.Scancode,
+    zoomOutKey :: SDL.Scancode,
+    newKey :: SDL.Scancode 
+  }
+  deriving (Generic, Show)
+
+defaultKeyConfigSDL =
+  KeyConfigSDL
+    { moveUpKey = SDL.ScancodeW,
+      moveDownKey = SDL.ScancodeS,
+      moveLeftKey = SDL.ScancodeA,
+      moveRightKey = SDL.ScancodeD,
+      pauseKey = SDL.ScancodeP,
+      escapeKey = SDL.ScancodeEscape,
+      dropItemKey = SDL.ScancodeF,
+      toggleMapKey = SDL.ScancodeM,
+      reloadKey = SDL.ScancodeR,
+      testEventKey = SDL.ScancodeT,
+      spaceActionKey = SDL.ScancodeSpace,
+      rotateCameraPlusKey = SDL.ScancodeQ,
+      rotateCameraMinusKey = SDL.ScancodeE,
+      zoomInKey = SDL.ScancodeJ,
+      zoomOutKey = SDL.ScancodeK,
+      newKey = SDL.ScancodeN
+    }
+
+instance ToJSON KeyConfig where
+  toEncoding = genericToEncoding defaultOptions
+
+instance FromJSON KeyConfig where
+  parseJSON = withObject "KeyConfig" $ \o -> do
+    moveUpBinding <- o .:? "moveUp" .!= 119
+    moveDownBinding <- o .:? "moveDown" .!= 115
+    moveLeftBinding <- o .:? "moveLeft" .!= 97
+    moveRightBinding <- o .:? "moveRight" .!= 100
+    pauseBinding <- o .:? "pause" .!= 112
+    escapeBinding <- o .:? "escape" .!= 27
+    dropItemBinding <- o .:? "dropItem" .!= 102
+    toggleMapBinding <- o .:? "toggleMap" .!= 109
+    reloadBinding <- o .:? "reload" .!= 114
+    testEventBinding <- o .:? "testEvent" .!= 116
+    spaceActionBinding <- o .:? "spaceAction" .!= 32
+    rotateCameraPlusBinding <- o .:? "rotateCameraPlus" .!= 113
+    rotateCameraMinusBinding <- o .:? "rotateCameraMinus" .!= 101
+    zoomInBinding <- o .:? "zoomIn" .!= 106
+    zoomOutBinding <- o .:? "zoomOut" .!= 107
+    newBinding <- o .:? "new" .!= 110
+    return
+      KeyConfig
+        { moveUpBinding = moveUpBinding,
+          moveDownBinding = moveDownBinding,
+          moveLeftBinding = moveLeftBinding,
+          moveRightBinding = moveRightBinding,
+          pauseBinding = pauseBinding,
+          escapeBinding = escapeBinding,
+          dropItemBinding = dropItemBinding,
+          toggleMapBinding = toggleMapBinding,
+          reloadBinding = reloadBinding,
+          testEventBinding = testEventBinding,
+          spaceActionBinding = spaceActionBinding,
+          rotateCameraPlusBinding = rotateCameraPlusBinding,
+          rotateCameraMinusBinding = rotateCameraMinusBinding,
+          zoomInBinding = zoomInBinding,
+          zoomOutBinding = zoomOutBinding,
+          newBinding = newBinding
+        }
+
+loadKeyConfig :: IO KeyConfigSDL
+loadKeyConfig = do
+    fExists <- doesFileExist "keys.json"
+    if fExists
+    then do
+        mayConfig <- decodeFileStrict "keys.json"
+        print mayConfig
+        case mayConfig of
+          Just config ->
+            return
+              KeyConfigSDL
+                { moveUpKey = getSdlScancode $ moveUpBinding config,
+                  moveDownKey = getSdlScancode $ moveDownBinding config,
+                  moveLeftKey = getSdlScancode $ moveLeftBinding config,
+                  moveRightKey = getSdlScancode $ moveRightBinding config,
+                  pauseKey = getSdlScancode $ pauseBinding config,
+                  escapeKey = getSdlScancode $ escapeBinding config,
+                  dropItemKey = getSdlScancode $ dropItemBinding config,
+                  toggleMapKey = getSdlScancode $ toggleMapBinding config,
+                  reloadKey = getSdlScancode $ reloadBinding config,
+                  testEventKey = getSdlScancode $ testEventBinding config,
+                  spaceActionKey = getSdlScancode $ spaceActionBinding config,
+                  rotateCameraPlusKey = getSdlScancode $ rotateCameraPlusBinding config,
+                  rotateCameraMinusKey = getSdlScancode $ rotateCameraMinusBinding config,
+                  zoomInKey = getSdlScancode $ zoomInBinding config,
+                  zoomOutKey = getSdlScancode $ zoomOutBinding config,
+                  newKey = getSdlScancode $ newBinding config
+                }
+          Nothing -> do
+            putStrLn "invalid keys.json, loading default config"
+            -- This is duplicated but not sure how to reduce
+            return defaultKeyConfigSDL
+    else do
+        putStrLn "No keys.json found, loading default config"
+        return defaultKeyConfigSDL
+
+getSdlScancode :: Int -> SDL.Scancode
+getSdlScancode x = SDL.Internal.Numbered.fromNumber (fromIntegral x) :: SDL.Scancode