core/src/ru/deadsoftware/cavedroid/game/model/item/InventoryItem.kt

   1 package ru.deadsoftware.cavedroid.game.model.item
   2
   3 import com.badlogic.gdx.graphics.Color
   4 import com.badlogic.gdx.graphics.g2d.SpriteBatch
   5 import com.badlogic.gdx.graphics.glutils.ShapeRenderer
   6 import ru.deadsoftware.cavedroid.game.GameItemsHolder
   7 import ru.deadsoftware.cavedroid.game.mobs.player.Inventory
   8 import ru.deadsoftware.cavedroid.misc.Assets
   9 import ru.deadsoftware.cavedroid.misc.utils.drawSprite
  10 import ru.deadsoftware.cavedroid.misc.utils.drawString
  11 import ru.deadsoftware.cavedroid.misc.utils.px
  12 import java.io.Serializable
  13
  14 class InventoryItem @JvmOverloads constructor(
  15     val itemKey: String,
  16     _amount: Int = 1,
  17 ) : Serializable {
  18
  19     var amount = _amount
  20         set(value) {
  21             field = if (value < 0) {
  22                 0
  23             } else {
  24                 value
  25             }
  26         }
  27
  28     @Transient
  29     lateinit var item: Item
  30         private set
  31
  32     @JvmOverloads
  33     constructor(_item: Item, amount: Int = 1) : this(_item.params.key, amount) {
  34         item = _item
  35     }
  36
  37     fun init(gameItemsHolder: GameItemsHolder) {
  38         if (this::item.isInitialized) {
  39             return
  40         }
  41         item = gameItemsHolder.getItem(itemKey)
  42     }
  43
  44     @JvmOverloads
  45     fun add(count: Int = 1) {
  46         if (count > 0 && Int.MAX_VALUE - count < amount) {
  47             throw IllegalArgumentException("$amount + $count exceeds Int.MAX_VALUE")
  48         }
  49
  50         amount += count
  51     }
  52
  53     @JvmOverloads
  54     fun subtract(count: Int = 1) {
  55         if (count < 0) {
  56             throw IllegalArgumentException("Can't subtract negative amount")
  57         }
  58
  59         add(-count)
  60     }
  61
  62     @JvmOverloads
  63     fun canBeAdded(count: Int = 1): Boolean {
  64         return amount + count <= item.params.maxStack
  65     }
  66
  67     private fun drawAmountText(spriteBatch: SpriteBatch, text: String,  x: Float, y: Float) {
  68         spriteBatch.drawString(text, x + 1, y + 1, Color.BLACK)
  69         spriteBatch.drawString(text, x, y, Color.WHITE)
  70     }
  71
  72     fun drawSelected(spriteBatch: SpriteBatch, x: Float, y: Float) {
  73         if (item.isNone()) {
  74             return
  75         }
  76
  77         val sprite = item.sprite
  78         val amountString = amount.toString()
  79         spriteBatch.drawSprite(sprite, x - 10f, y - 10f, rotation = 0f, width = 20f, height = 20f)
  80         drawAmountText(
  81             spriteBatch = spriteBatch,
  82             text = amountString,
  83             x = x + 10f - Assets.getStringWidth(amountString) + 1f,
  84             y = y + 10f - Assets.getStringHeight(amountString) + 1f
  85         )
  86     }
  87
  88     fun draw(spriteBatch: SpriteBatch, shapeRenderer: ShapeRenderer, x: Float, y: Float) {
  89         if (item.isNone()) {
  90             return
  91         }
  92
  93         val sprite = item.sprite
  94         val placeableMarginTop = (item as? Item.Placeable)?.block?.params?.spriteMargins?.top ?: 0
  95         val placeableMarginLeft = (item as? Item.Placeable)?.block?.params?.spriteMargins?.left ?: 0
  96         spriteBatch.drawSprite(sprite, x + placeableMarginLeft, y + placeableMarginTop)
  97
  98         if (amount < 2) {
  99             return
 100         }
 101
 102         if (item.isTool()) {
 103             spriteBatch.end()
 104             shapeRenderer.begin(ShapeRenderer.ShapeType.Filled)
 105             shapeRenderer.color = Color.GREEN
 106             shapeRenderer.rect(
 107                 /* x = */ x,
 108                 /* y = */ y + 1.px - 2,
 109                 /* width = */ 1.px * (amount.toFloat() / item.params.maxStack.toFloat()),
 110                 /* height = */ 2f
 111             )
 112             shapeRenderer.end()
 113             spriteBatch.begin()
 114         } else {
 115             val amountString = amount.toString()
 116             drawAmountText(
 117                 spriteBatch = spriteBatch,
 118                 text = amountString,
 119                 x = x + 1.px - Assets.getStringWidth(amountString),
 120                 y = y + 1.px - Assets.getStringHeight(amountString)
 121             )
 122         }
 123     }
 124
 125     companion object {
 126         fun InventoryItem?.isNoneOrNull() = this?.item == null || this.item.isNone()
 127     }
 128 }