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 ru.deadsoftware.cavedroid.game.model.block.Block as BlockModel
   6 import kotlin.contracts.ExperimentalContracts
   7 import kotlin.contracts.contract
   8
   9 @OptIn(ExperimentalContracts::class)
  10 sealed class Item {
  11
  12     abstract val params: CommonItemParams
  13     abstract val sprite: Sprite
  14
  15     override fun hashCode(): Int {
  16         return params.key.hashCode()
  17     }
  18
  19     override fun equals(other: Any?): Boolean {
  20         return params.key == (other as Item).params.key
  21     }
  22
  23     fun isNone(): Boolean {
  24         contract { returns(true) implies (this@Item is None) }
  25         return this is None
  26     }
  27
  28     fun isPlaceable(): Boolean {
  29         contract { returns(true) implies (this@Item is Placeable) }
  30         return this is Placeable
  31     }
  32
  33     fun isSlab(): Boolean {
  34         contract { returns(true) implies (this@Item is Slab) }
  35         return this is Slab
  36     }
  37
  38
  39     fun isTool(): Boolean {
  40         contract { returns(true) implies (this@Item is Tool) }
  41         return this is Tool
  42     }
  43
  44     fun isUsable(): Boolean {
  45         contract { returns(true) implies (this@Item is Placeable) }
  46         return this is Placeable
  47     }
  48
  49     @JvmOverloads
  50     fun toInventoryItem(amount: Int = 1): InventoryItem {
  51         return InventoryItem(this, amount)
  52     }
  53
  54     sealed class Tool : Item() {
  55         abstract val mobDamageMultiplier: Float
  56         abstract val blockDamageMultiplier: Float
  57     }
  58
  59     sealed class Usable : Item() {
  60         abstract val useActionKey: String
  61     }
  62
  63     sealed class Placeable : Item() {
  64         abstract val block: BlockModel
  65         override val sprite: Sprite get() = block.sprite
  66     }
  67
  68     data class None(
  69         override val params: CommonItemParams,
  70     ): Item() {
  71         override val sprite: Sprite
  72             get() = throw IllegalAccessException("Trying to get sprite of None")
  73     }
  74
  75     data class Block(
  76         override val params: CommonItemParams,
  77         override val block: BlockModel
  78     ) : Placeable()
  79
  80     data class Slab(
  81         override val params: CommonItemParams,
  82         val topPartBlock: BlockModel.Slab,
  83         val bottomPartBlock: BlockModel.Slab
  84     ) : Placeable() {
  85         override val block get() = bottomPartBlock
  86     }
  87
  88     data class Sword(
  89         override val params: CommonItemParams,
  90         override val sprite: Sprite,
  91         override val mobDamageMultiplier: Float,
  92         override val blockDamageMultiplier: Float,
  93     ) : Tool()
  94
  95     data class Shovel(
  96         override val params: CommonItemParams,
  97         override val sprite: Sprite,
  98         override val mobDamageMultiplier: Float,
  99         override val blockDamageMultiplier: Float,
 100     ) : Tool()
 101
 102     data class Bucket(
 103         override val params: CommonItemParams,
 104         override val sprite: Sprite,
 105         override val useActionKey: String
 106     ) : Usable()
 107
 108 }