Mime Powers (Vow + Invisible Wall) (#7653)

Content.Server/Abilities/Mime/MimePowersSystem.cs

@@ -0,0 +1,147 @@
+using Content.Server.Popups;
+using Content.Server.Coordinates.Helpers;
+using Content.Shared.Speech;
+using Content.Shared.Actions;
+using Content.Shared.Alert;
+using Content.Shared.Physics;
+using Content.Shared.Doors.Components;
+using Content.Shared.Maps;
+using Content.Shared.MobState.Components;
+using Content.Shared.Tag;
+using Robust.Shared.Player;
+using Robust.Shared.Physics;
+
+namespace Content.Server.Abilities.Mime
+{
+    public sealed class MimePowersSystem : EntitySystem
+    {
+        [Dependency] private readonly PopupSystem _popupSystem = default!;
+        [Dependency] private readonly SharedActionsSystem _actionsSystem = default!;
+        [Dependency] private readonly AlertsSystem _alertsSystem = default!;
+        [Dependency] private readonly TagSystem _tagSystem = default!;
+        public override void Initialize()
+        {
+            base.Initialize();
+            SubscribeLocalEvent<MimePowersComponent, ComponentInit>(OnComponentInit);
+            SubscribeLocalEvent<MimePowersComponent, SpeakAttemptEvent>(OnSpeakAttempt);
+            SubscribeLocalEvent<MimePowersComponent, InvisibleWallActionEvent>(OnInvisibleWall);
+        }
+        public override void Update(float frameTime)
+        {
+            base.Update(frameTime);
+            /// Queue to despawn invis walls
+            foreach (var invisWall in EntityQuery<InvisibleWallComponent>())
+            {
+                invisWall.Accumulator += frameTime;
+                if (invisWall.Accumulator < invisWall.DespawnTime.TotalSeconds)
+                {
+                    continue;
+                }
+                EntityManager.QueueDeleteEntity(invisWall.Owner);
+            }
+            /// Queue to track whether mimes can retake vows yet
+            foreach (var mime in EntityQuery<MimePowersComponent>())
+            {
+                if (!mime.VowBroken || mime.ReadyToRepent)
+                    return;
+
+                mime.Accumulator += frameTime;
+                if (mime.Accumulator < mime.VowCooldown.TotalSeconds)
+                {
+                    continue;
+                }
+                mime.ReadyToRepent = true;
+                _popupSystem.PopupEntity(Loc.GetString("mime-ready-to-repent"), mime.Owner, Filter.Entities(mime.Owner));
+            }
+        }
+
+        private void OnComponentInit(EntityUid uid, MimePowersComponent component, ComponentInit args)
+        {
+            _actionsSystem.AddAction(uid, component.InvisibleWallAction, uid);
+            _alertsSystem.ShowAlert(uid, AlertType.VowOfSilence);
+        }
+        private void OnSpeakAttempt(EntityUid uid, MimePowersComponent component, SpeakAttemptEvent args)
+        {
+            if (!component.Enabled)
+                return;
+
+            _popupSystem.PopupEntity(Loc.GetString("mime-cant-speak"), uid, Filter.Entities(uid));
+            args.Cancel();
+        }
+
+        /// <summary>
+        /// Creates an invisible wall in a free space after some checks.
+        /// </summary>
+        private void OnInvisibleWall(EntityUid uid, MimePowersComponent component, InvisibleWallActionEvent args)
+        {
+            if (!component.Enabled)
+                return;
+
+            var xform = Transform(uid);
+            /// Get the tile in front of the mime
+            var offsetValue = xform.LocalRotation.ToWorldVec().Normalized;
+            var coords = xform.Coordinates.Offset(offsetValue).SnapToGrid();
+            /// Check there are no walls or mobs there
+            foreach (var entity in coords.GetEntitiesInTile())
+            {
+                IPhysBody? physics = null; /// We use this to check if it's impassable
+                if ((HasComp<MobStateComponent>(entity) && entity != uid) || /// Is it a mob?
+                    ((Resolve(entity, ref physics, false) && (physics.CollisionLayer & (int) CollisionGroup.Impassable) != 0) // Is it impassable?
+                    &&  !(TryComp<DoorComponent>(entity, out var door) && door.State != DoorState.Closed))) // Is it a door that's open and so not actually impassable?
+                {
+                    _popupSystem.PopupEntity(Loc.GetString("mime-invisible-wall-failed"), uid, Filter.Entities(uid));
+                    return;
+                }
+            }
+            _popupSystem.PopupEntity(Loc.GetString("mime-invisible-wall-popup", ("mime", uid)), uid, Filter.Pvs(uid));
+            /// Make sure we set the invisible wall to despawn properly
+            var wall = EntityManager.SpawnEntity(component.WallPrototype, coords);
+            EnsureComp<InvisibleWallComponent>(wall);
+            /// Handle args so cooldown works
+            args.Handled = true;
+        }
+
+        /// <summary>
+        /// Break this mime's vow to not speak.
+        /// </summary>
+        public void BreakVow(EntityUid uid, MimePowersComponent? mimePowers = null)
+        {
+            if (!Resolve(uid, ref mimePowers))
+                return;
+
+            if (mimePowers.VowBroken)
+                return;
+
+            mimePowers.Enabled = false;
+            mimePowers.VowBroken = true;
+            _alertsSystem.ClearAlert(uid, AlertType.VowOfSilence);
+            _alertsSystem.ShowAlert(uid, AlertType.VowBroken);
+            _actionsSystem.RemoveAction(uid, mimePowers.InvisibleWallAction);
+        }
+
+        /// <summary>
+        /// Retake this mime's vow to not speak.
+        /// </summary>
+        public void RetakeVow(EntityUid uid, MimePowersComponent? mimePowers = null)
+        {
+            if (!Resolve(uid, ref mimePowers))
+                return;
+
+            if (!mimePowers.ReadyToRepent)
+            {
+                _popupSystem.PopupEntity(Loc.GetString("mime-not-ready-repent"), uid, Filter.Entities(uid));
+                return;
+            }
+
+            mimePowers.Enabled = true;
+            mimePowers.ReadyToRepent = false;
+            mimePowers.VowBroken = false;
+            mimePowers.Accumulator = 0f;
+            _alertsSystem.ClearAlert(uid, AlertType.VowBroken);
+            _alertsSystem.ShowAlert(uid, AlertType.VowOfSilence);
+            _actionsSystem.AddAction(uid, mimePowers.InvisibleWallAction, uid);
+        }
+    }
+
+    public sealed class InvisibleWallActionEvent : InstantActionEvent {}
+}