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

   1 package ru.deadsoftware.cavedroid.game.input.handler.mouse
   2
   3 import ru.deadsoftware.cavedroid.misc.annotations.multibinding.BindMouseInputHandler
   4 import com.badlogic.gdx.math.MathUtils
   5 import ru.deadsoftware.cavedroid.MainConfig
   6 import ru.deadsoftware.cavedroid.game.GameItemsHolder
   7 import ru.deadsoftware.cavedroid.game.GameScope
   8 import ru.deadsoftware.cavedroid.game.GameUiWindow
   9 import ru.deadsoftware.cavedroid.game.ui.windows.GameWindowsManager
  10 import ru.deadsoftware.cavedroid.game.input.IMouseInputHandler
  11 import ru.deadsoftware.cavedroid.game.input.action.MouseInputAction
  12 import ru.deadsoftware.cavedroid.game.input.action.keys.MouseInputActionKey
  13 import ru.deadsoftware.cavedroid.game.input.isInsideWindow
  14 import ru.deadsoftware.cavedroid.misc.Assets
  15 import javax.inject.Inject
  16 import kotlin.math.abs
  17
  18 @GameScope
  19 @BindMouseInputHandler
  20 class CreativeInventoryScrollMouseInputHandler @Inject constructor(
  21     private val mainConfig: MainConfig,
  22     private val gameWindowsManager: GameWindowsManager,
  23     private val gameItemsHolder: GameItemsHolder,
  24 ) : IMouseInputHandler {
  25
  26     private val creativeInventoryTexture get() = requireNotNull(Assets.textureRegions["creative"])
  27
  28     private var dragStartY = 0f
  29
  30     override fun checkConditions(action: MouseInputAction): Boolean {
  31         return gameWindowsManager.getCurrentWindow() == GameUiWindow.CREATIVE_INVENTORY &&
  32                 (gameWindowsManager.isDragging || isInsideWindow(action, creativeInventoryTexture)) &&
  33                 (checkStartDragConditions(action) || checkEndDragConditions(action) ||
  34                         checkDragConditions(action) || action.actionKey is MouseInputActionKey.Scroll)
  35
  36     }
  37
  38     private fun checkStartDragConditions(action: MouseInputAction): Boolean {
  39         return (action.actionKey is MouseInputActionKey.Screen) &&
  40                 !action.actionKey.touchUp && !gameWindowsManager.isDragging
  41     }
  42
  43     private fun checkEndDragConditions(action: MouseInputAction): Boolean {
  44         return action.actionKey is MouseInputActionKey.Screen &&
  45                 action.actionKey.touchUp && gameWindowsManager.isDragging
  46     }
  47
  48     private fun checkDragConditions(action: MouseInputAction): Boolean {
  49         return mainConfig.isTouch && action.actionKey is MouseInputActionKey.Dragged &&
  50                 abs(action.screenY - dragStartY) >= DRAG_SENSITIVITY
  51     }
  52
  53     private fun clampScrollAmount() {
  54         gameWindowsManager.creativeScrollAmount =
  55             MathUtils.clamp(gameWindowsManager.creativeScrollAmount, 0, gameItemsHolder.getMaxCreativeScrollAmount())
  56     }
  57
  58     private fun handleStartOrEndDrag(action: MouseInputAction) {
  59         if (gameWindowsManager.isDragging) {
  60             gameWindowsManager.isDragging = false
  61         } else {
  62             dragStartY = action.screenY
  63         }
  64     }
  65
  66     private fun handleDrag(action: MouseInputAction) {
  67         gameWindowsManager.isDragging = true
  68         gameWindowsManager.creativeScrollAmount += ((dragStartY - action.screenY) / DRAG_SENSITIVITY).toInt()
  69         clampScrollAmount()
  70         dragStartY = action.screenY
  71     }
  72
  73     private fun handleScroll(action: MouseInputAction) {
  74         gameWindowsManager.creativeScrollAmount += (action.actionKey as MouseInputActionKey.Scroll).amountY.toInt()
  75         clampScrollAmount()
  76     }
  77
  78     override fun handle(action: MouseInputAction) {
  79         when (action.actionKey) {
  80             is MouseInputActionKey.Screen -> handleStartOrEndDrag(action)
  81             is MouseInputActionKey.Dragged -> handleDrag(action)
  82             is MouseInputActionKey.Scroll -> handleScroll(action)
  83             else -> return
  84         }
  85     }
  86
  87     companion object {
  88         private const val DRAG_SENSITIVITY = 16f
  89     }
  90 }