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package moe.nea.firmament.features.texturepack
import com.google.gson.JsonObject
import kotlinx.serialization.KSerializer
import kotlinx.serialization.descriptors.SerialDescriptor
import kotlinx.serialization.encoding.Decoder
import kotlinx.serialization.encoding.Encoder
import net.minecraft.item.ItemStack
import net.minecraft.util.Identifier
object CustomModelOverrideParser {
object FirmamentRootPredicateSerializer : KSerializer<FirmamentModelPredicate> {
val delegateSerializer = kotlinx.serialization.json.JsonObject.serializer()
override val descriptor: SerialDescriptor
get() = SerialDescriptor("FirmamentModelRootPredicate", delegateSerializer.descriptor)
override fun deserialize(decoder: Decoder): FirmamentModelPredicate {
val json = decoder.decodeSerializableValue(delegateSerializer).intoGson() as JsonObject
return AndPredicate(parsePredicates(json).toTypedArray())
}
override fun serialize(encoder: Encoder, value: FirmamentModelPredicate) {
TODO("Cannot serialize firmament predicates")
}
}
val predicateParsers = mutableMapOf<Identifier, FirmamentModelPredicateParser>()
fun registerPredicateParser(name: String, parser: FirmamentModelPredicateParser) {
predicateParsers[Identifier.of("firmament", name)] = parser
}
init {
registerPredicateParser("display_name", DisplayNamePredicate.Parser)
registerPredicateParser("lore", LorePredicate.Parser)
registerPredicateParser("all", AndPredicate.Parser)
registerPredicateParser("any", OrPredicate.Parser)
registerPredicateParser("not", NotPredicate.Parser)
registerPredicateParser("item", ItemPredicate.Parser)
registerPredicateParser("extra_attributes", ExtraAttributesPredicate.Parser)
registerPredicateParser("pet", PetPredicate.Parser)
}
private val neverPredicate = listOf(
object : FirmamentModelPredicate {
override fun test(stack: ItemStack): Boolean {
return false
}
}
)
fun parsePredicates(predicates: JsonObject): List<FirmamentModelPredicate> {
val parsedPredicates = mutableListOf<FirmamentModelPredicate>()
for (predicateName in predicates.keySet()) {
if (!predicateName.startsWith("firmament:")) continue
val identifier = Identifier.of(predicateName)
val parser = predicateParsers[identifier] ?: return neverPredicate
val parsedPredicate = parser.parse(predicates[predicateName]) ?: return neverPredicate
parsedPredicates.add(parsedPredicate)
}
return parsedPredicates
}
@JvmStatic
fun parseCustomModelOverrides(jsonObject: JsonObject): Array<FirmamentModelPredicate>? {
val predicates = (jsonObject["predicate"] as? JsonObject) ?: return null
val parsedPredicates = parsePredicates(predicates)
if (parsedPredicates.isEmpty())
return null
return parsedPredicates.toTypedArray()
}
}
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