Add "rarity" select type

Author: lowercasebtw

README.md

@@ -17,6 +17,10 @@ A vanilla-like implementation of Optifine's CIT, shaped how I believe it would b
     - fields:
         - enchantment: Enchantment Identifier [REQUIRED]
 
+#### Select:
+
+- rarity (value of the stack rarity component)
+
 ## Examples
 
 diamond_sword.json
@@ -62,4 +66,28 @@ enchanted_book.json
 		}
 	}
 }
+```
+
+golden_apple.json
+
+```json
+{
+	"model": {
+		"type": "minecraft:select",
+		"property": "chit:rarity",
+		"cases": [
+			{
+				"when": "rare",
+				"model": {
+					"type": "minecraft:model",
+					"model": "minecraft:item/apple"
+				}
+			}
+		],
+		"fallback": {
+			"type": "minecraft:model",
+			"model": "minecraft:item/golden_apple"
+		}
+	}
+}
 ```

src/main/kotlin/btw/lowercase/chit/ChitClientMod.kt

@@ -2,16 +2,25 @@ package btw.lowercase.chit
 
 import btw.lowercase.chit.property.conditional.HasEnchantmentConditional
 import btw.lowercase.chit.property.numeric.EnchantmentLevelNumeric
+import btw.lowercase.chit.property.select.RaritySelect
 import net.fabricmc.api.ClientModInitializer
 import net.minecraft.client.renderer.item.properties.conditional.ConditionalItemModelProperties
 import net.minecraft.client.renderer.item.properties.numeric.RangeSelectItemModelProperties
+import net.minecraft.client.renderer.item.properties.select.SelectItemModelProperties
 import net.minecraft.resources.ResourceLocation
 
 object ChitClientMod : ClientModInitializer {
     override fun onInitializeClient() {
         // Enchantments
         ConditionalItemModelProperties.ID_MAPPER.put(id("has_enchantment"), HasEnchantmentConditional.CODEC)
         RangeSelectItemModelProperties.ID_MAPPER.put(id("enchantment_level"), EnchantmentLevelNumeric.CODEC)
+
+        // Components
+        SelectItemModelProperties.ID_MAPPER.put(id("rarity"), RaritySelect.CODEC)
+
+        // Custom Data
+
+        // Other
     }
 
     fun id(path: String): ResourceLocation {

src/main/kotlin/btw/lowercase/chit/property/select/RaritySelect.kt

@@ -0,0 +1,30 @@
+package btw.lowercase.chit.property.select
+
+import com.mojang.serialization.MapCodec
+import net.minecraft.client.multiplayer.ClientLevel
+import net.minecraft.client.renderer.item.properties.select.SelectItemModelProperty
+import net.minecraft.client.renderer.item.properties.select.SelectItemModelProperty.Type
+import net.minecraft.world.entity.LivingEntity
+import net.minecraft.world.item.ItemDisplayContext
+import net.minecraft.world.item.ItemStack
+import net.minecraft.world.item.Rarity
+
+class RaritySelect() : SelectItemModelProperty<Rarity> {
+    companion object {
+        val CODEC = Type.create(MapCodec.unit(RaritySelect()), Rarity.CODEC)
+    }
+
+    override fun get(
+        stack: ItemStack,
+        clientLevel: ClientLevel?,
+        livingEntity: LivingEntity?,
+        layer: Int,
+        itemDisplayContext: ItemDisplayContext,
+    ): Rarity? {
+        return stack.rarity
+    }
+
+    override fun type(): Type<RaritySelect, Rarity> {
+        return CODEC
+    }
+}