core/src/ru/deadsoftware/cavedroid/game/mobs/player/Inventory.kt

   1 package ru.deadsoftware.cavedroid.game.mobs.player
   2
   3 import ru.deadsoftware.cavedroid.game.GameItemsHolder
   4 import ru.deadsoftware.cavedroid.game.model.item.InventoryItem
   5 import ru.deadsoftware.cavedroid.game.model.item.Item
   6 import ru.deadsoftware.cavedroid.game.objects.Drop
   7 import ru.deadsoftware.cavedroid.game.ui.TooltipManager
   8 import java.io.Serializable
   9
  10 class Inventory(
  11     val size: Int,
  12     val hotbarSize: Int,
  13     gameItemsHolder: GameItemsHolder,
  14     tooltipManager: TooltipManager,
  15 ) : Serializable {
  16
  17     @Transient
  18     private lateinit var tooltipManager: TooltipManager
  19
  20     @Transient
  21     private lateinit var fallbackItem: InventoryItem
  22
  23     init {
  24         fallbackItem = gameItemsHolder.fallbackItem.toInventoryItem()
  25         this.tooltipManager = tooltipManager
  26
  27         if (size < 0 || hotbarSize < 0 || hotbarSize > size) {
  28             throw IllegalArgumentException("Invalid inventory sizes: hotbarSize=$hotbarSize; size=$size")
  29         }
  30     }
  31
  32     private val _items = Array(size) { InventoryItem(gameItemsHolder.fallbackItem) }
  33
  34     val items get() = _items.asList() as MutableList<InventoryItem>
  35
  36     val hotbarItems get() = items.subList(0, hotbarSize)
  37
  38     var activeSlot = 0
  39         set(value) {
  40             if (value in 0 ..< hotbarSize) {
  41                 field = value
  42                 showCurrentItemTooltip()
  43             }
  44         }
  45
  46     fun showCurrentItemTooltip() {
  47         tooltipManager.showHotbarTooltip(activeItem.item.params.name)
  48     }
  49
  50     val activeItem get() = items[activeSlot]
  51
  52     fun initItems(gameItemsHolder: GameItemsHolder, tooltipManager: TooltipManager) {
  53         this.tooltipManager = tooltipManager
  54         fallbackItem = gameItemsHolder.fallbackItem.toInventoryItem()
  55         items.forEach { item ->
  56             item.init(gameItemsHolder)
  57         }
  58     }
  59
  60     private fun getItemPickSlot(item: Item): Int {
  61         for (i in items.indices) {
  62             val inventoryItem = items[i]
  63
  64             if (item == inventoryItem.item && inventoryItem.canBeAdded()) {
  65                 return i
  66             }
  67
  68             if (inventoryItem.item.isNone()) {
  69                 return i
  70             }
  71         }
  72
  73         return -1
  74     }
  75
  76     fun canPickItem(item: Item): Boolean {
  77         return getItemPickSlot(item) >= 0
  78     }
  79
  80     fun pickDrop(drop: Drop) {
  81         val slot = getItemPickSlot(drop.item).takeIf { it >= 0 } ?: return
  82         val inventoryItem = items[slot]
  83
  84         if (inventoryItem.item == drop.item) {
  85             inventoryItem.add(drop.amount)
  86         } else {
  87             _items[slot] = drop.item.toInventoryItem(drop.amount)
  88             if (slot == activeSlot) {
  89                 showCurrentItemTooltip()
  90             }
  91         }
  92
  93         drop.pickedUp = true
  94     }
  95
  96     fun addItem(item: Item) {
  97         _items.copyInto(
  98             destination = _items,
  99             destinationOffset = 1,
 100             startIndex = 0,
 101             endIndex = size - 1
 102         )
 103
 104         _items[0] = item.toInventoryItem(item.params.maxStack)
 105         showCurrentItemTooltip()
 106     }
 107
 108     @JvmOverloads
 109     fun decreaseItemAmount(slot: Int, count: Int = 1) {
 110         val item = _items[slot]
 111         item.subtract(count)
 112         if (item.amount <= 0) {
 113             _items[slot] = fallbackItem
 114         }
 115     }
 116
 117     @JvmOverloads
 118     fun decreaseCurrentItemAmount(count: Int = 1) {
 119         decreaseItemAmount(activeSlot, count)
 120     }
 121 }