init mod

src/RecipeData.cs

@@ -0,0 +1,50 @@
+using System.Collections.Generic;
+using System.Linq;
+using Cthangover.Core.Factories.Impls;
+using Cthangover.Core.Items;
+
+namespace Cthangover.Core.Settings
+{
+    /// <summary>
+    /// Tracks which crafting recipes the player has unlocked. Internally
+    /// a <see cref="HashSet{String}"/> of recipe IDs that provides <c>O(1)</c>
+    /// lookup. Recipes can be queried by <see cref="IRecipe.WorkbenchType"/>
+    /// via <see cref="GetRecipesByType"/>, which resolves each ID through
+    /// <see cref="Cthangover.Core.Factories.Impls.RecipeFactory"/> and
+    /// filters the resulting <see cref="IRecipe"/> objects.
+    /// </summary>
+	public class RecipeData : IRecipeData
+	{
+        /// <summary>Set of known recipe IDs (duplicate insertion is silently ignored).</summary>
+		public HashSet<string> Data { get; set; } = new();
+
+        /// <summary>
+        /// Unlocks a recipe by ID. Returns <c>false</c> if the recipe
+        /// was already known (duplicate).
+        /// </summary>
+		public bool Add(string id)
+		{
+			return Data.Add(id);
+		}
+
+        /// <summary><c>true</c> if the recipe with the given ID is already unlocked.</summary>
+		public bool Has(string id)
+		{
+			return Data.Contains(id);
+		}
+
+        /// <summary>
+        /// Returns all known recipes that belong to the specified
+        /// <see cref="WorkbenchType"/>. Each ID is resolved via
+        /// <see cref="Cthangover.Core.Factories.Impls.RecipeFactory.Instance"/>
+        /// and filtered; IDs that resolve to <c>null</c> are silently
+        /// dropped.
+        /// </summary>
+		public List<IRecipe> GetRecipesByType(WorkbenchType type)
+		{
+			return Data.Select(o => RecipeFactory.Instance.Get(o))
+				.Where(o => o.WorkbenchType == type)
+				.ToList();
+		}
+	}
+}