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

   1 package ru.deadsoftware.cavedroid.game.model.item
   2
   3 import com.badlogic.gdx.graphics.g2d.Sprite
   4 import ru.deadsoftware.cavedroid.game.model.block.Block
   5 import kotlin.contracts.ExperimentalContracts
   6 import kotlin.contracts.contract
   7
   8 @OptIn(ExperimentalContracts::class)
   9 sealed class Item {
  10
  11     abstract val params: CommonItemParams
  12     abstract val sprite: Sprite
  13
  14     override fun hashCode(): Int {
  15         return params.key.hashCode()
  16     }
  17
  18     override fun equals(other: Any?): Boolean {
  19         return params.key == (other as Item).params.key
  20     }
  21
  22     fun isPlaceable(): Boolean {
  23         contract { returns(true) implies (this@Item is Placeable) }
  24         return this is Placeable
  25     }
  26
  27     fun isTool(): Boolean {
  28         contract { returns(true) implies (this@Item is Tool) }
  29         return this is Tool
  30     }
  31
  32     fun isUsable(): Boolean {
  33         contract { returns(true) implies (this@Item is Placeable) }
  34         return this is Placeable
  35     }
  36
  37     @JvmOverloads
  38     fun toInventoryItem(amount: Int = 1): InventoryItem {
  39         return InventoryItem(this, amount)
  40     }
  41
  42     sealed class Tool : Item() {
  43         abstract val mobDamageMultiplier: Float
  44         abstract val blockDamageMultiplier: Float
  45     }
  46
  47     sealed class Usable : Item() {
  48         abstract val useActionKey: String
  49     }
  50
  51     data class Placeable(
  52         override val params: CommonItemParams,
  53         val block: Block
  54     ) : Item() {
  55         override val sprite: Sprite get() = block.sprite
  56     }
  57
  58     data class Sword(
  59         override val params: CommonItemParams,
  60         override val sprite: Sprite,
  61         override val mobDamageMultiplier: Float,
  62         override val blockDamageMultiplier: Float,
  63     ) : Tool()
  64
  65     data class Shovel(
  66         override val params: CommonItemParams,
  67         override val sprite: Sprite,
  68         override val mobDamageMultiplier: Float,
  69         override val blockDamageMultiplier: Float,
  70     ) : Tool()
  71
  72     data class Bucket(
  73         override val params: CommonItemParams,
  74         override val sprite: Sprite,
  75         override val useActionKey: String
  76     ) : Usable()
  77
  78 }