Cult spells update (#607)

* - add: CultSystem.BloodSpells.

* - add: Cleanup.

Content.Server/_White/Cult/Runes/Systems/CultSystem.BloodSpells.cs

@@ -0,0 +1,87 @@
+using System.Linq;
+using Content.Server.Body.Components;
+using Content.Shared._White.Cult;
+using Content.Shared._White.Cult.Components;
+using Content.Shared.DoAfter;
+using Robust.Shared.Player;
+
+namespace Content.Server._White.Cult.Runes.Systems;
+
+public sealed partial class CultSystem
+{
+    public void InitializeSpells()
+    {
+        SubscribeLocalEvent<CultistComponent, CultEmpowerSelectedBuiMessage>(OnCultistEmpowerSelected);
+        SubscribeLocalEvent<CultistComponent, CultEmpowerRemoveBuiMessage>(OnCultistEmpowerRemove);
+        SubscribeLocalEvent<CultistComponent, SpellCreatedEvent>(OnSpellCreated);
+    }
+
+    private void OnCultistEmpowerRemove(Entity<CultistComponent> ent, ref CultEmpowerRemoveBuiMessage args)
+    {
+        var entity = GetEntity(args.ActionType);
+        ent.Comp.SelectedEmpowers.Remove(args.ActionType);
+        _actionsSystem.RemoveAction(entity);
+        Dirty(ent);
+    }
+
+    private void OnSpellCreated(EntityUid ent, CultistComponent comp, SpellCreatedEvent args)
+    {
+        if (args.Cancelled || comp.SelectedEmpowers.Count >= 2)
+            return;
+
+        var action = CultistComponent.CultistActions.FirstOrDefault(x => x.Equals(args.Spell));
+
+        if (action == null)
+            return;
+
+        var howMuchBloodTake = HasComp<CultBuffComponent>(ent) ? -10f : -20f;
+
+        if (!TryComp<BloodstreamComponent>(ent, out var bloodstreamComponent))
+            return;
+
+        _bloodstreamSystem.TryModifyBloodLevel(ent, howMuchBloodTake, bloodstreamComponent, createPuddle: false);
+
+        comp.SelectedEmpowers.Add(GetNetEntity(_actionsSystem.AddAction(ent, args.Spell)));
+
+        Dirty(ent, comp);
+    }
+
+    private void OnCultistEmpowerSelected(EntityUid ent, CultistComponent comp, CultEmpowerSelectedBuiMessage args)
+    {
+        var action = CultistComponent.CultistActions.FirstOrDefault(x => x.Equals(args.ActionType));
+
+        if (action == null)
+            return;
+
+        if (comp.SelectedEmpowers.Count >= 2)
+        {
+            _popupSystem.PopupEntity(Loc.GetString("blood-spell-create-too-much"), ent, ent);
+            return;
+        }
+
+        var creationTime = HasComp<CultBuffComponent>(ent) ? 2.5f : 5f;
+
+        _doAfterSystem.TryStartDoAfter(
+            new DoAfterArgs(_entityManager, ent, creationTime, new SpellCreatedEvent {Spell = action}, ent)
+            {
+                BreakOnDamage = true,
+                BreakOnMove = true
+            });
+    }
+
+    public void CreateSpell(Entity<CultistComponent> ent, ICommonSession session)
+    {
+        _ui.TryOpen(ent, CultEmpowerUiKey.Key, session);
+    }
+
+    public void RemoveSpell(Entity<CultistComponent> ent, ICommonSession session)
+    {
+        if (ent.Comp.SelectedEmpowers.Count == 0)
+        {
+            _popupSystem.PopupEntity(Loc.GetString("blood-spell-remove-no-spells"), ent, ent);
+            return;
+        }
+
+        _ui.TryOpen(ent, CultEmpowerRemoveUiKey.Key, session);
+    }
+}