Custom Traits

.gitignore

@@ -604,5 +604,6 @@ FodyWeavers.xsd
 
 !COTL_API/Debug/
 build/
+.idea
 
 global.json

COTL_API/CustomTraits/CustomTrait.cs

@@ -0,0 +1,39 @@
+using I2.Loc;
+using UnityEngine;
+
+namespace FoodPlus.CustomTraits;
+
+public abstract class CustomTrait
+{
+    public abstract string InternalName { get; }
+
+    internal FollowerTrait.TraitType TraitType;
+    internal string ModPrefix = "";
+
+    public virtual string LocalizedTitle() => LocalizationManager.GetTranslation($"Traits/{ModPrefix}.{InternalName}");
+
+    public virtual string LocalizedDescription() => LocalizationManager.GetTranslation($"Traits/{InternalName}.description");
+
+    public virtual bool IsTraitUnavailable() => false;
+
+    public virtual TraitFlags TraitFlags => TraitFlags.NONE;
+
+    public virtual List<FollowerTrait.TraitType> ExclusiveTraits => [];
+    public virtual Sprite Icon => TextureHelper.CreateSpriteFromPath(PluginPaths.ResolveAssetPath("placeholder.png"));
+    public virtual bool Positive => true;
+
+}
+
+[Flags]
+public enum TraitFlags
+{
+    NONE = 0,
+    STARTING_TRAIT = 1 << 0,
+    FAITHFUL_TRAIT = 1 << 1,
+    RARE_STARTING_TRAIT = 1 << 2,
+    SINGLE_TRAIT = 1 << 3,
+    EXCLUDE_FROM_MATING = 1 << 4,
+    SIN_TRAIT = 1 << 5,
+    PURE_BLOOD_TRAIT = 1 << 6,
+    REQUIRES_ONBOARDING_COMPLETE = 1 << 7,
+}

COTL_API/CustomTraits/CustomTraitManager.cs

@@ -0,0 +1,51 @@
+using System.Reflection;
+using COTL_API.Guid;
+
+namespace FoodPlus.CustomTraits;
+
+public static partial class CustomTraitManager
+{
+    private static Dictionary<FollowerTrait.TraitType, CustomTrait> CustomTraitList { get; } = [];
+
+    public static FollowerTrait.TraitType Add(CustomTrait trait)
+    {
+        var guid = TypeManager.GetModIdFromCallstack(Assembly.GetCallingAssembly());
+
+        var traitType = GuidManager.GetEnumValue<FollowerTrait.TraitType>(guid, trait.InternalName);
+        trait.TraitType = traitType;
+        trait.ModPrefix = guid;
+
+        HandleTraitFlags(trait);
+        foreach (var exclusive in trait.ExclusiveTraits)
+        {
+            FollowerTrait.ExclusiveTraits.Add(traitType, exclusive);
+        }
+
+        CustomTraitList.Add(traitType, trait);
+
+        return traitType;
+    }
+
+    private static void HandleTraitFlags(CustomTrait item)
+    {
+        var flagActions = new Dictionary<TraitFlags, Action>
+        {
+            { TraitFlags.STARTING_TRAIT, () => FollowerTrait.StartingTraits.Add(item.TraitType) },
+            { TraitFlags.FAITHFUL_TRAIT, () => FollowerTrait.FaithfulTraits.Add(item.TraitType) },
+            { TraitFlags.RARE_STARTING_TRAIT, () => FollowerTrait.RareStartingTraits.Add(item.TraitType) },
+            { TraitFlags.SINGLE_TRAIT, () => FollowerTrait.SingleTraits.Add(item.TraitType) },
+            { TraitFlags.SIN_TRAIT, () => FollowerTrait.SinTraits.Add(item.TraitType) },
+            { TraitFlags.EXCLUDE_FROM_MATING, () => FollowerTrait.ExcludedFromMating.Add(item.TraitType) },
+            { TraitFlags.PURE_BLOOD_TRAIT, () => FollowerTrait.PureBloodTraits.Add(item.TraitType) },
+            { TraitFlags.REQUIRES_ONBOARDING_COMPLETE, () => FollowerTrait.RequiresOnboardingCompleted.Add(item.TraitType) }
+        };
+
+        foreach (var flagAction in flagActions)
+        {
+            if (item.TraitFlags.HasFlag(flagAction.Key))
+            {
+                flagAction.Value();
+            }
+        }
+    }
+}

COTL_API/CustomTraits/CustomTraitPatches.cs

@@ -0,0 +1,48 @@
+using HarmonyLib;
+using UnityEngine;
+
+namespace FoodPlus.CustomTraits;
+
+[HarmonyPatch]
+public static partial class CustomTraitManager
+{
+    [HarmonyPatch(typeof(FollowerTrait), nameof(FollowerTrait.GetIcon))]
+    [HarmonyPostfix]
+    private static void FollowerTrait_GetIcon(FollowerTrait.TraitType Type, ref Sprite __result)
+    {
+        if (!CustomTraitList.TryGetValue(Type, out var value)) return;
+        __result = value.Icon;
+    }
+
+    [HarmonyPatch(typeof(FollowerTrait), nameof(FollowerTrait.IsPositiveTrait))]
+    [HarmonyPostfix]
+    private static void FollowerTrait_IsPositiveTrait(FollowerTrait.TraitType traitType, ref bool __result)
+    {
+        if (!CustomTraitList.TryGetValue(traitType, out var value)) return;
+        __result = value.Positive;
+    }
+
+    [HarmonyPatch(typeof(FollowerTrait), nameof(FollowerTrait.GetLocalizedTitle))]
+    [HarmonyPostfix]
+    private static void FollowerTrait_GetLocalizedTitle(FollowerTrait.TraitType Type, ref string __result)
+    {
+        if (!CustomTraitList.TryGetValue(Type, out var value)) return;
+        __result = value.LocalizedTitle();
+    }
+
+    [HarmonyPatch(typeof(FollowerTrait), nameof(FollowerTrait.GetLocalizedDescription))]
+    [HarmonyPostfix]
+    private static void FollowerTrait_GetLocalizedDescription(FollowerTrait.TraitType Type, ref string __result)
+    {
+        if (!CustomTraitList.TryGetValue(Type, out var value)) return;
+        __result = value.LocalizedDescription();
+    }
+
+    [HarmonyPatch(typeof(FollowerTrait), nameof(FollowerTrait.IsTraitUnavailable))]
+    [HarmonyPostfix]
+    private static void FollowerTrait_IsTraitUnavailable(FollowerTrait.TraitType trait, ref bool __result)
+    {
+        if (!CustomTraitList.TryGetValue(trait, out var value)) return;
+        __result = value.IsTraitUnavailable();
+    }
+}