62 lines
2.7 KiB
C#
62 lines
2.7 KiB
C#
using System.Collections.Immutable;
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using System.Text.Json;
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using PkmnLib.Dynamic.Libraries.DataLoaders.Models;
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using PkmnLib.Static;
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using PkmnLib.Static.Libraries;
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using PkmnLib.Static.Moves;
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using PkmnLib.Static.Utils;
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namespace PkmnLib.Dynamic.Libraries.DataLoaders;
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/// <summary>
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/// Loads item data from a JSON file.
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/// </summary>
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public static class ItemDataLoader
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{
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/// <summary>
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/// Loads the item library from a JSON file.
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/// </summary>
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public static ItemLibrary LoadItems(Stream stream, Action<List<SerializedItem>>? onAfterLoad = null)
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{
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var library = new ItemLibrary();
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var obj = JsonSerializer.Deserialize<List<SerializedItem>>(stream, JsonOptions.DefaultOptions);
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if (obj == null)
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throw new InvalidDataException("Item data is empty.");
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onAfterLoad?.Invoke(obj);
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var items = obj.Select(DeserializeItem);
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foreach (var i in items)
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library.Add(i);
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return library;
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}
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/// <summary>
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/// Factory delegate for creating items.
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/// </summary>
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public delegate IItem ItemFactoryDelegate(SerializedItem serialized, StringKey name, ItemCategory type,
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BattleItemCategory battleType, int price, ImmutableHashSet<StringKey> flags, ISecondaryEffect? effect,
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ISecondaryEffect? battleTriggerEffect, Dictionary<StringKey, object?> additionalData);
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/// <summary>
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/// The item constructor. This is used to create items from the JSON data.
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/// </summary>
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[PublicAPI]
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public static ItemFactoryDelegate ItemConstructor { get; set; } =
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(_, name, type, battleType, price, flags, effect, battleTriggerEffect, additionalData) => new ItemImpl(name,
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type, battleType, price, flags, effect, battleTriggerEffect, additionalData);
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private static IItem DeserializeItem(SerializedItem serialized)
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{
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if (!Enum.TryParse<ItemCategory>(serialized.ItemType, true, out var itemType))
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throw new InvalidDataException($"Item type {serialized.ItemType} is not valid for item {serialized.Name}.");
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Enum.TryParse(serialized.BattleType, true, out BattleItemCategory battleType);
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var effect = serialized.Effect?.ParseEffect();
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var battleTriggerEffect = serialized.BattleEffect?.ParseEffect();
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var additionalData =
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serialized.AdditionalData?.ToDictionary(x => (StringKey)x.Key, x => x.Value.ToParameter()) ??
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new Dictionary<StringKey, object?>();
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return ItemConstructor(serialized, serialized.Name, itemType, battleType, serialized.Price,
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serialized.Flags.Select(x => (StringKey)x).ToImmutableHashSet(), effect, battleTriggerEffect,
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additionalData);
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}
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} |