BlackboardValueView.cs

// Copyright (c) 2019-2020 Vladimir Popov zor1994@gmail.com https://github.com/ZorPastaman/Event-Based-Blackboard

using System;

namespace Zor.EventBasedBlackboard.BlackboardValueViews
{
	/// <summary>
	/// <para>View for a blackboard value.</para>
	/// <para>Inherit this to make a drawer for a value of
	/// <see cref="Zor.EventBasedBlackboard.Core.Blackboard"/>.</para>
	/// </summary>
	/// <typeparam name="T">Value type.</typeparam>
	/// <remarks>
	/// Blackboard values are drawn by this class because Unity draws properties by itself only if the property is
	/// serialized by Unity which is not true for the Blackboard system.
	/// </remarks>
	public abstract class BlackboardValueView<T> : IBlackboardValueView
	{
		/// <inheritdoc/>
		public Type valueType => typeof(T);

		/// <summary>
		/// Draws <paramref name="value"/> in the editor and returns new value.
		/// </summary>
		/// <param name="label">Label which is used in the editor.</param>
		/// <param name="value">Current value.</param>
		/// <returns>New value.</returns>
		public abstract T DrawValue(string label, T value);
	}
}