Skill requirements (#1085)

* prerequites refactor

* tiefling only spells

* metamagic update

* sort trying

* goblin speed port

Content.Shared/_CP14/Skill/Effects/AddAction.cs

@@ -0,0 +1,46 @@
+using Content.Shared.Actions;
+using Robust.Shared.Prototypes;
+
+namespace Content.Shared._CP14.Skill.Effects;
+
+public sealed partial class AddAction : CP14SkillEffect
+{
+    [DataField(required: true)]
+    public EntProtoId Action;
+
+    public override void AddSkill(IEntityManager entManager, EntityUid target)
+    {
+        var actionsSystem = entManager.System<SharedActionsSystem>();
+
+        actionsSystem.AddAction(target, Action);
+    }
+
+    public override void RemoveSkill(IEntityManager entManager, EntityUid target)
+    {
+        var actionsSystem = entManager.System<SharedActionsSystem>();
+
+        foreach (var (uid, _) in actionsSystem.GetActions(target))
+        {
+            if (!entManager.TryGetComponent<MetaDataComponent>(uid, out var metaData))
+                continue;
+
+            if (metaData.EntityPrototype == null)
+                continue;
+
+            if (metaData.EntityPrototype != Action)
+                continue;
+
+            actionsSystem.RemoveAction(target, uid);
+        }
+    }
+
+    public override string? GetName(IEntityManager entMagager, IPrototypeManager protoManager)
+    {
+        return !protoManager.TryIndex(Action, out var indexedAction) ? string.Empty : indexedAction.Name;
+    }
+
+    public override string? GetDescription(IEntityManager entMagager, IPrototypeManager protoManager)
+    {
+        return !protoManager.TryIndex(Action, out var indexedAction) ? string.Empty : indexedAction.Description;
+    }
+}