Minigame map/arena library to hold & store data.
minecraft
minecraft-lib
minecraft-library
Add JsonWorldDataStore
* Added a json serializer/deserializer using Kotlinx's JSON
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src/main/kotlin/me/lukiiy/mapling/provided/JsonWorldDataStore.kt
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src/main/kotlin/me/lukiiy/mapling/provided/JsonWorldDataStore.kt
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package me.lukiiy.mapling.provided
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import kotlinx.serialization.json.Json
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import kotlinx.serialization.json.JsonArray
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import kotlinx.serialization.json.JsonElement
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import kotlinx.serialization.json.JsonObject
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import kotlinx.serialization.json.JsonPrimitive
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import kotlinx.serialization.json.booleanOrNull
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import kotlinx.serialization.json.doubleOrNull
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import kotlinx.serialization.json.jsonObject
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import kotlinx.serialization.json.longOrNull
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import me.lukiiy.mapling.Position
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import me.lukiiy.mapling.WorldData
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import me.lukiiy.mapling.WorldDataStore
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import java.io.File
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import kotlin.collections.component1
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import kotlin.collections.component2
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import kotlin.collections.iterator
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import kotlin.collections.map
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class JsonWorldDataStore : WorldDataStore {
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override fun load(file: File): WorldData {
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if (!file.exists()) return WorldData()
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return deserialize(Json.parseToJsonElement(file.readText()).jsonObject)
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}
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override fun save(file: File, data: WorldData) {
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if (data.isEmpty()) return
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file.parentFile?.mkdirs()
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file.writeText(Json.encodeToString(JsonObject.serializer(), serialize(data)))
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}
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private fun serialize(data: WorldData): JsonObject {
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fun encode(value: Any): JsonElement = when (value) {
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is Position -> JsonPrimitive(value.serialize())
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is Boolean -> JsonPrimitive(value)
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is Long -> JsonPrimitive(value)
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is Int -> JsonPrimitive(value)
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is Double -> JsonPrimitive(value)
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is String -> JsonPrimitive(value)
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is List<*> -> JsonArray(value.map { encode(requireNotNull(it)) })
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else -> error("Unsupported value.")
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}
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return JsonObject(buildMap {
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for ((key, value) in data.values()) put(key, encode(value))
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for ((key, section) in data.sections()) put(key, serialize(section))
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})
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}
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private fun deserialize(obj: JsonObject): WorldData {
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fun decode(element: JsonElement): Any = when (element) {
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is JsonPrimitive -> when {
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element.content.startsWith("pos:") -> Position.deserialize(element.content)
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!element.isString -> element.booleanOrNull ?: element.longOrNull ?: element.doubleOrNull ?: element.content
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else -> element.content
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}
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is JsonArray -> element.map(::decode)
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else -> error("Unsupported value.")
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}
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fun read(obj: JsonObject, target: WorldData) {
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for ((key, element) in obj) {
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when (element) {
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is JsonObject -> read(element, target.section(key))
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else -> target.set(key, decode(element))
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}
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}
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}
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return WorldData().also { read(obj, it) }
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}
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}