core/src/ru/deadsoftware/cavedroid/game/input/handler/mouse/CreativeInventoryScrollMouseInputHandler.kt

   1 package ru.deadsoftware.cavedroid.game.input.handler.mouse
   2
   3 import com.badlogic.gdx.math.MathUtils
   4 import ru.deadsoftware.cavedroid.MainConfig
   5 import ru.deadsoftware.cavedroid.game.GameItemsHolder
   6 import ru.deadsoftware.cavedroid.game.GameScope
   7 import ru.deadsoftware.cavedroid.game.GameUiWindow
   8 import ru.deadsoftware.cavedroid.game.windows.GameWindowsManager
   9 import ru.deadsoftware.cavedroid.game.input.IGameInputHandler
  10 import ru.deadsoftware.cavedroid.game.input.action.MouseInputAction
  11 import ru.deadsoftware.cavedroid.game.input.action.keys.MouseInputActionKey
  12 import ru.deadsoftware.cavedroid.game.input.isInsideWindow
  13 import ru.deadsoftware.cavedroid.misc.Assets
  14 import javax.inject.Inject
  15 import kotlin.math.abs
  16
  17 @GameScope
  18 class CreativeInventoryScrollMouseInputHandler @Inject constructor(
  19     private val mainConfig: MainConfig,
  20     private val gameWindowsManager: GameWindowsManager,
  21     private val gameItemsHolder: GameItemsHolder,
  22 ) : IGameInputHandler<MouseInputAction> {
  23
  24     private val creativeInventoryTexture get() = requireNotNull(Assets.textureRegions["creative"])
  25
  26     private var dragStartY = 0f
  27
  28     override fun checkConditions(action: MouseInputAction): Boolean {
  29         return gameWindowsManager.getCurrentWindow() == GameUiWindow.CREATIVE_INVENTORY &&
  30                 (gameWindowsManager.isDragging || isInsideWindow(action, creativeInventoryTexture)) &&
  31                 (checkStartDragConditions(action) || checkEndDragConditions(action) ||
  32                         checkDragConditions(action) || action.actionKey is MouseInputActionKey.Scroll)
  33
  34     }
  35
  36     private fun checkStartDragConditions(action: MouseInputAction): Boolean {
  37         return (action.actionKey is MouseInputActionKey.Touch) &&
  38                 !action.actionKey.touchUp && !gameWindowsManager.isDragging
  39     }
  40
  41     private fun checkEndDragConditions(action: MouseInputAction): Boolean {
  42         return action.actionKey is MouseInputActionKey.Touch &&
  43                 action.actionKey.touchUp && gameWindowsManager.isDragging
  44     }
  45
  46     private fun checkDragConditions(action: MouseInputAction): Boolean {
  47         return mainConfig.isTouch && action.actionKey is MouseInputActionKey.Dragged &&
  48                 abs(action.screenY - dragStartY) >= DRAG_SENSITIVITY
  49     }
  50
  51     private fun clampScrollAmount() {
  52         gameWindowsManager.creativeScrollAmount =
  53             MathUtils.clamp(gameWindowsManager.creativeScrollAmount, 0, gameItemsHolder.getMaxCreativeScrollAmount())
  54     }
  55
  56     private fun handleStartOrEndDrag(action: MouseInputAction) {
  57         if (gameWindowsManager.isDragging) {
  58             gameWindowsManager.isDragging = false
  59         } else {
  60             dragStartY = action.screenY
  61         }
  62     }
  63
  64     private fun handleDrag(action: MouseInputAction) {
  65         gameWindowsManager.isDragging = true
  66         gameWindowsManager.creativeScrollAmount += ((dragStartY - action.screenY) / DRAG_SENSITIVITY).toInt()
  67         clampScrollAmount()
  68         dragStartY = action.screenY
  69     }
  70
  71     private fun handleScroll(action: MouseInputAction) {
  72         gameWindowsManager.creativeScrollAmount += (action.actionKey as MouseInputActionKey.Scroll).amountY.toInt()
  73         clampScrollAmount()
  74     }
  75
  76     override fun handle(action: MouseInputAction) {
  77         when (action.actionKey) {
  78             is MouseInputActionKey.Touch -> handleStartOrEndDrag(action)
  79             is MouseInputActionKey.Dragged -> handleDrag(action)
  80             is MouseInputActionKey.Scroll -> handleScroll(action)
  81             else -> return
  82         }
  83     }
  84
  85     companion object {
  86         private const val DRAG_SENSITIVITY = 16f
  87     }
  88 }