PkmnLib.NET/PkmnLib.Dynamic/ScriptHandling/ScriptResolver.cs

72 lines
2.2 KiB
C#

using System.Diagnostics.CodeAnalysis;
using PkmnLib.Static;
using PkmnLib.Static.Utils;
namespace PkmnLib.Dynamic.ScriptHandling;
/// <summary>
/// Class responsible for the creation of <see cref="Script"/> instances.
/// </summary>
public class ScriptResolver
{
private IReadOnlyDictionary<(ScriptCategory, StringKey), Func<Script>> _scriptCtors;
private IReadOnlyDictionary<StringKey, Func<IItem, ItemScript>> _itemScriptCtors;
private readonly Dictionary<IItem, ItemScript> _itemBattleScripts = new();
/// <inheritdoc cref="ScriptResolver"/>
public ScriptResolver(IReadOnlyDictionary<(ScriptCategory, StringKey), Func<Script>> scriptCtors,
IReadOnlyDictionary<StringKey, Func<IItem, ItemScript>> itemScriptCtors)
{
_scriptCtors = scriptCtors;
_itemScriptCtors = itemScriptCtors;
}
/// <summary>
/// Try and create a new script for the given category and key. If the script does not exist, return false.
/// </summary>
public bool TryResolve(ScriptCategory category, StringKey key, IReadOnlyDictionary<StringKey, object?>? parameters,
[MaybeNullWhen(false)] out Script script)
{
if (!_scriptCtors.TryGetValue((category, key), out var scriptCtor))
{
script = null;
return false;
}
script = scriptCtor();
if (parameters != null)
{
script.OnInitialize(parameters);
}
return true;
}
/// <summary>
/// Try and resolve an item script for the given item. If the item does not have a script, return false.
/// </summary>
public bool TryResolveBattleItemScript(IItem item, [MaybeNullWhen(false)] out ItemScript script)
{
if (_itemBattleScripts.TryGetValue(item, out script))
{
return true;
}
var effect = item.BattleEffect;
if (effect == null)
{
script = null;
return false;
}
if (!_itemScriptCtors.TryGetValue(effect.Name, out var scriptCtor))
{
script = null;
return false;
}
script = scriptCtor(item);
script.OnInitialize(effect.Parameters);
_itemBattleScripts[item] = script;
return true;
}
}