diff --git a/Content.Client/Rootable/RootableSystem.cs b/Content.Client/Rootable/RootableSystem.cs
new file mode 100644
index 0000000000..33e68ae594
--- /dev/null
+++ b/Content.Client/Rootable/RootableSystem.cs
@@ -0,0 +1,5 @@
+using Content.Shared.Rootable;
+
+namespace Content.Client.Rootable;
+
+public sealed class RootableSystem : SharedRootableSystem;
diff --git a/Content.Server/Damage/Systems/DamageUserOnTriggerSystem.cs b/Content.Server/Damage/Systems/DamageUserOnTriggerSystem.cs
index 5051751be9..8a0ee51076 100644
--- a/Content.Server/Damage/Systems/DamageUserOnTriggerSystem.cs
+++ b/Content.Server/Damage/Systems/DamageUserOnTriggerSystem.cs
@@ -1,8 +1,6 @@
-using Content.Server.Damage.Components;
using Content.Server.Explosion.EntitySystems;
using Content.Shared.Damage;
-using Content.Shared.StepTrigger;
-using Content.Shared.StepTrigger.Systems;
+using Content.Shared.Damage.Components;
namespace Content.Server.Damage.Systems;
diff --git a/Content.Server/Rootable/RootableSystem.cs b/Content.Server/Rootable/RootableSystem.cs
new file mode 100644
index 0000000000..ce88f18dc3
--- /dev/null
+++ b/Content.Server/Rootable/RootableSystem.cs
@@ -0,0 +1,77 @@
+using Content.Server.Body.Components;
+using Content.Server.Body.Systems;
+using Content.Shared.Administration.Logs;
+using Content.Shared.Chemistry;
+using Content.Shared.Chemistry.Components;
+using Content.Shared.Chemistry.EntitySystems;
+using Content.Shared.Database;
+using Content.Shared.FixedPoint;
+using Content.Shared.Fluids.Components;
+using Content.Shared.Rootable;
+using Robust.Shared.Timing;
+
+namespace Content.Server.Rootable;
+
+///
+/// Adds an action to toggle rooting to the ground, primarily for the Diona species.
+///
+public sealed class RootableSystem : SharedRootableSystem
+{
+ [Dependency] private readonly ISharedAdminLogManager _logger = default!;
+ [Dependency] private readonly IGameTiming _timing = default!;
+ [Dependency] private readonly SharedSolutionContainerSystem _solutionContainer = default!;
+ [Dependency] private readonly ReactiveSystem _reactive = default!;
+ [Dependency] private readonly BloodstreamSystem _blood = default!;
+
+ public override void Update(float frameTime)
+ {
+ base.Update(frameTime);
+
+ var query = EntityQueryEnumerator();
+ var curTime = _timing.CurTime;
+ while (query.MoveNext(out var uid, out var rooted, out var bloodstream))
+ {
+ if (!rooted.Rooted || rooted.PuddleEntity == null || curTime < rooted.NextUpdate || !PuddleQuery.TryComp(rooted.PuddleEntity, out var puddleComp))
+ continue;
+
+ rooted.NextUpdate += rooted.TransferFrequency;
+
+ PuddleReact((uid, rooted, bloodstream), (rooted.PuddleEntity.Value, puddleComp!));
+ }
+ }
+
+ ///
+ /// Determines if the puddle is set up properly and if so, moves on to reacting.
+ ///
+ private void PuddleReact(Entity entity, Entity puddleEntity)
+ {
+ if (!_solutionContainer.ResolveSolution(puddleEntity.Owner, puddleEntity.Comp.SolutionName, ref puddleEntity.Comp.Solution, out var solution) ||
+ solution.Contents.Count == 0)
+ {
+ return;
+ }
+
+ ReactWithEntity(entity, puddleEntity, solution);
+ }
+
+ ///
+ /// Attempt to transfer an amount of the solution to the entity's bloodstream.
+ ///
+ private void ReactWithEntity(Entity entity, Entity puddleEntity, Solution solution)
+ {
+ if (!_solutionContainer.ResolveSolution(entity.Owner, entity.Comp2.ChemicalSolutionName, ref entity.Comp2.ChemicalSolution, out var chemSolution) || chemSolution.AvailableVolume <= 0)
+ return;
+
+ var availableTransfer = FixedPoint2.Min(solution.Volume, entity.Comp1.TransferRate);
+ var transferAmount = FixedPoint2.Min(availableTransfer, chemSolution.AvailableVolume);
+ var transferSolution = _solutionContainer.SplitSolution(puddleEntity.Comp.Solution!.Value, transferAmount);
+
+ _reactive.DoEntityReaction(entity, transferSolution, ReactionMethod.Ingestion);
+
+ if (_blood.TryAddToChemicals(entity, transferSolution, entity.Comp2))
+ {
+ // Log solution addition by puddle
+ _logger.Add(LogType.ForceFeed, LogImpact.Medium, $"{ToPrettyString(entity):target} absorbed puddle {SharedSolutionContainerSystem.ToPrettyString(transferSolution)}");
+ }
+ }
+}
diff --git a/Content.Server/Damage/Components/DamageUserOnTriggerComponent.cs b/Content.Shared/Damage/Components/DamageUserOnTriggerComponent.cs
similarity index 77%
rename from Content.Server/Damage/Components/DamageUserOnTriggerComponent.cs
rename to Content.Shared/Damage/Components/DamageUserOnTriggerComponent.cs
index 2a30374709..87adc0cc90 100644
--- a/Content.Server/Damage/Components/DamageUserOnTriggerComponent.cs
+++ b/Content.Shared/Damage/Components/DamageUserOnTriggerComponent.cs
@@ -1,6 +1,4 @@
-using Content.Shared.Damage;
-
-namespace Content.Server.Damage.Components;
+namespace Content.Shared.Damage.Components;
[RegisterComponent]
public sealed partial class DamageUserOnTriggerComponent : Component
diff --git a/Content.Shared/Rootable/RootableComponent.cs b/Content.Shared/Rootable/RootableComponent.cs
new file mode 100644
index 0000000000..94f8dbcea9
--- /dev/null
+++ b/Content.Shared/Rootable/RootableComponent.cs
@@ -0,0 +1,76 @@
+using Content.Shared.Alert;
+using Content.Shared.FixedPoint;
+using Robust.Shared.Audio;
+using Robust.Shared.GameStates;
+using Robust.Shared.Prototypes;
+using Robust.Shared.Serialization.TypeSerializers.Implementations.Custom;
+
+namespace Content.Shared.Rootable;
+
+///
+/// A rooting action, for Diona.
+///
+[RegisterComponent, NetworkedComponent, AutoGenerateComponentState, AutoGenerateComponentPause]
+public sealed partial class RootableComponent : Component
+{
+ ///
+ /// The action prototype that toggles the rootable state.
+ ///
+ [DataField]
+ public EntProtoId Action = "ActionToggleRootable";
+
+ ///
+ /// Entity to hold the action prototype.
+ ///
+ [DataField, AutoNetworkedField]
+ public EntityUid? ActionEntity;
+
+ ///
+ /// The prototype for the "rooted" alert, indicating the user that they are rooted.
+ ///
+ [DataField]
+ public ProtoId RootedAlert = "Rooted";
+
+ ///
+ /// Is the entity currently rooted?
+ ///
+ [DataField, AutoNetworkedField]
+ public bool Rooted;
+
+ ///
+ /// The puddle that is currently affecting this entity.
+ ///
+ [DataField, AutoNetworkedField]
+ public EntityUid? PuddleEntity;
+
+ ///
+ /// The time at which the next absorption metabolism will occur.
+ ///
+ [DataField(customTypeSerializer: typeof(TimeOffsetSerializer)), AutoNetworkedField]
+ [AutoPausedField]
+ public TimeSpan NextUpdate;
+
+ ///
+ /// The max rate (in reagent units per transfer) at which chemicals are transferred from the puddle to the rooted entity.
+ ///
+ [DataField]
+ public FixedPoint2 TransferRate = 0.75;
+
+ ///
+ /// The frequency of which chemicals are transferred from the puddle to the rooted entity.
+ ///
+ [DataField]
+ public TimeSpan TransferFrequency = TimeSpan.FromSeconds(1);
+
+ ///
+ /// The movement speed modifier for when rooting is active.
+ ///
+ [DataField]
+ public float SpeedModifier = 0.8f;
+
+ ///
+ /// Sound that plays when rooting is toggled.
+ ///
+ [DataField]
+ public SoundSpecifier RootSound = new SoundPathSpecifier("/Audio/Voice/Diona/diona_salute.ogg");
+}
diff --git a/Content.Shared/Rootable/SharedRootableSystem.cs b/Content.Shared/Rootable/SharedRootableSystem.cs
new file mode 100644
index 0000000000..9a6697cf97
--- /dev/null
+++ b/Content.Shared/Rootable/SharedRootableSystem.cs
@@ -0,0 +1,177 @@
+using Content.Shared.Damage.Components;
+using Content.Shared.Actions;
+using Content.Shared.Actions.Components;
+using Content.Shared.Alert;
+using Content.Shared.Coordinates;
+using Content.Shared.Fluids.Components;
+using Content.Shared.Gravity;
+using Content.Shared.Mobs;
+using Content.Shared.Movement.Systems;
+using Content.Shared.Slippery;
+using Content.Shared.Toggleable;
+using Robust.Shared.Audio.Systems;
+using Robust.Shared.Physics.Components;
+using Robust.Shared.Physics.Events;
+using Robust.Shared.Physics.Systems;
+using Robust.Shared.Timing;
+
+namespace Content.Shared.Rootable;
+
+///
+/// Adds an action to toggle rooting to the ground, primarily for the Diona species.
+/// Being rooted prevents weighlessness and slipping, but causes any floor contents to transfer its reagents to the bloodstream.
+///
+public abstract class SharedRootableSystem : EntitySystem
+{
+ [Dependency] private readonly IGameTiming _timing = default!;
+ [Dependency] private readonly SharedActionsSystem _actions = default!;
+ [Dependency] private readonly SharedGravitySystem _gravity = default!;
+ [Dependency] private readonly SharedPhysicsSystem _physics = default!;
+ [Dependency] private readonly MovementSpeedModifierSystem _movementSpeedModifier = default!;
+ [Dependency] private readonly AlertsSystem _alerts = default!;
+ [Dependency] private readonly SharedAudioSystem _audio = default!;
+
+ protected EntityQuery PuddleQuery;
+ protected EntityQuery PhysicsQuery;
+
+ public override void Initialize()
+ {
+ base.Initialize();
+
+ PuddleQuery = GetEntityQuery();
+ PhysicsQuery = GetEntityQuery();
+
+ SubscribeLocalEvent(OnRootableMapInit);
+ SubscribeLocalEvent(OnRootableShutdown);
+ SubscribeLocalEvent(OnStartCollide);
+ SubscribeLocalEvent(OnEndCollide);
+ SubscribeLocalEvent(OnRootableToggle);
+ SubscribeLocalEvent(OnMobStateChanged);
+ SubscribeLocalEvent(OnIsWeightless);
+ SubscribeLocalEvent(OnSlipAttempt);
+ SubscribeLocalEvent(OnRefreshMovementSpeed);
+ }
+
+ private void OnRootableMapInit(Entity entity, ref MapInitEvent args)
+ {
+ if (!TryComp(entity, out ActionsComponent? comp))
+ return;
+
+ entity.Comp.NextUpdate = _timing.CurTime;
+ _actions.AddAction(entity, ref entity.Comp.ActionEntity, entity.Comp.Action, component: comp);
+ }
+
+ private void OnRootableShutdown(Entity entity, ref ComponentShutdown args)
+ {
+ if (!TryComp(entity, out ActionsComponent? comp))
+ return;
+
+ var actions = new Entity(entity, comp);
+ _actions.RemoveAction(actions, entity.Comp.ActionEntity);
+ }
+
+ private void OnRootableToggle(Entity entity, ref ToggleActionEvent args)
+ {
+ args.Handled = TryToggleRooting((entity, entity));
+ }
+
+ private void OnMobStateChanged(Entity entity, ref MobStateChangedEvent args)
+ {
+ if (entity.Comp.Rooted)
+ TryToggleRooting((entity, entity));
+ }
+
+ public bool TryToggleRooting(Entity entity)
+ {
+ if (!Resolve(entity, ref entity.Comp))
+ return false;
+
+ entity.Comp.Rooted = !entity.Comp.Rooted;
+ _movementSpeedModifier.RefreshMovementSpeedModifiers(entity);
+ Dirty(entity);
+
+ if (entity.Comp.Rooted)
+ {
+ _alerts.ShowAlert(entity, entity.Comp.RootedAlert);
+ var curTime = _timing.CurTime;
+ if (curTime > entity.Comp.NextUpdate)
+ {
+ entity.Comp.NextUpdate = curTime;
+ }
+ }
+ else
+ {
+ _alerts.ClearAlert(entity, entity.Comp.RootedAlert);
+ }
+
+ _audio.PlayPredicted(entity.Comp.RootSound, entity.Owner.ToCoordinates(), entity);
+
+ return true;
+ }
+
+ private void OnIsWeightless(Entity ent, ref IsWeightlessEvent args)
+ {
+ if (args.Handled || !ent.Comp.Rooted)
+ return;
+
+ // do not cancel weightlessness if the person is in off-grid.
+ if (!_gravity.EntityOnGravitySupportingGridOrMap(ent.Owner))
+ return;
+
+ args.IsWeightless = false;
+ args.Handled = true;
+ }
+
+ private void OnSlipAttempt(Entity ent, ref SlipAttemptEvent args)
+ {
+ if (!ent.Comp.Rooted)
+ return;
+
+ if (args.SlipCausingEntity != null && HasComp(args.SlipCausingEntity))
+ return;
+
+ args.NoSlip = true;
+ }
+
+ private void OnStartCollide(Entity entity, ref StartCollideEvent args)
+ {
+ if (!PuddleQuery.HasComp(args.OtherEntity))
+ return;
+
+ entity.Comp.PuddleEntity = args.OtherEntity;
+
+ if (entity.Comp.NextUpdate < _timing.CurTime) // To prevent constantly moving to new puddles resetting the timer
+ entity.Comp.NextUpdate = _timing.CurTime;
+ }
+
+ private void OnEndCollide(Entity entity, ref EndCollideEvent args)
+ {
+ if (entity.Comp.PuddleEntity != args.OtherEntity)
+ return;
+
+ var exists = Exists(args.OtherEntity);
+
+ if (!PhysicsQuery.TryComp(entity, out var body))
+ return;
+
+ foreach (var ent in _physics.GetContactingEntities(entity, body))
+ {
+ if (exists && ent == args.OtherEntity)
+ continue;
+
+ if (!PuddleQuery.HasComponent(ent))
+ continue;
+
+ entity.Comp.PuddleEntity = ent;
+ return; // New puddle found, no need to continue
+ }
+
+ entity.Comp.PuddleEntity = null;
+ }
+
+ private void OnRefreshMovementSpeed(Entity entity, ref RefreshMovementSpeedModifiersEvent args)
+ {
+ if (entity.Comp.Rooted)
+ args.ModifySpeed(entity.Comp.SpeedModifier);
+ }
+}
diff --git a/Content.Shared/Slippery/SlipperySystem.cs b/Content.Shared/Slippery/SlipperySystem.cs
index bedf05536b..40d12d9ebe 100644
--- a/Content.Shared/Slippery/SlipperySystem.cs
+++ b/Content.Shared/Slippery/SlipperySystem.cs
@@ -95,7 +95,7 @@ public sealed class SlipperySystem : EntitySystem
if (HasComp(other) && !component.SlipData.SuperSlippery)
return;
- var attemptEv = new SlipAttemptEvent();
+ var attemptEv = new SlipAttemptEvent(uid);
RaiseLocalEvent(other, attemptEv);
if (attemptEv.SlowOverSlippery)
_speedModifier.AddModifiedEntity(other);
@@ -148,7 +148,14 @@ public sealed class SlipAttemptEvent : EntityEventArgs, IInventoryRelayEvent
public bool SlowOverSlippery;
+ public EntityUid? SlipCausingEntity;
+
public SlotFlags TargetSlots { get; } = SlotFlags.FEET;
+
+ public SlipAttemptEvent(EntityUid? slipCausingEntity)
+ {
+ SlipCausingEntity = slipCausingEntity;
+ }
}
///
diff --git a/Resources/Locale/en-US/actions/actions/rootable.ftl b/Resources/Locale/en-US/actions/actions/rootable.ftl
new file mode 100644
index 0000000000..ac853a06af
--- /dev/null
+++ b/Resources/Locale/en-US/actions/actions/rootable.ftl
@@ -0,0 +1,2 @@
+action-name-toggle-rootable = Rootable
+action-description-toggle-rootable = Begin or stop being rooted to the floor.
diff --git a/Resources/Locale/en-US/alerts/alerts.ftl b/Resources/Locale/en-US/alerts/alerts.ftl
index 800e8950a5..eb6d179027 100644
--- a/Resources/Locale/en-US/alerts/alerts.ftl
+++ b/Resources/Locale/en-US/alerts/alerts.ftl
@@ -113,3 +113,6 @@ alerts-revenant-essence-desc = The power of souls. It sustains you and is used f
alerts-revenant-corporeal-name = Corporeal
alerts-revenant-corporeal-desc = You have manifested physically. People around you can see and hurt you.
+
+alerts-rooted-name = Rooted
+alerts-rooted-desc = You are attached to the ground. You can't slip, but you absorb fluids under you.
diff --git a/Resources/Prototypes/Actions/types.yml b/Resources/Prototypes/Actions/types.yml
index f276c295d9..279608293b 100644
--- a/Resources/Prototypes/Actions/types.yml
+++ b/Resources/Prototypes/Actions/types.yml
@@ -399,6 +399,18 @@
useDelay: 1
itemIconStyle: BigAction
+- type: entity
+ parent: BaseToggleAction
+ id: ActionToggleRootable
+ name: action-name-toggle-rootable
+ description: action-description-toggle-rootable
+ components:
+ - type: Action
+ icon: Interface/Actions/rooting.png
+ iconOn: Interface/Actions/rooting.png
+ itemIconStyle: NoItem
+ useDelay: 1
+
- type: entity
id: ActionChameleonController
name: Control clothing
diff --git a/Resources/Prototypes/Alerts/alerts.yml b/Resources/Prototypes/Alerts/alerts.yml
index 471ece63ee..60a23294d3 100644
--- a/Resources/Prototypes/Alerts/alerts.yml
+++ b/Resources/Prototypes/Alerts/alerts.yml
@@ -24,6 +24,7 @@
- category: Hunger
- category: Thirst
- alertType: Magboots
+ - alertType: Rooted
- alertType: Pacified
- type: entity
diff --git a/Resources/Prototypes/Alerts/rooted.yml b/Resources/Prototypes/Alerts/rooted.yml
new file mode 100644
index 0000000000..088e4be2b6
--- /dev/null
+++ b/Resources/Prototypes/Alerts/rooted.yml
@@ -0,0 +1,5 @@
+- type: alert
+ id: Rooted
+ icons: [ /Textures/Interface/Alerts/Rooted/rooted.png ]
+ name: alerts-rooted-name
+ description: alerts-rooted-desc
diff --git a/Resources/Prototypes/Entities/Mobs/Species/diona.yml b/Resources/Prototypes/Entities/Mobs/Species/diona.yml
index 1e39eaec76..c2939347a8 100644
--- a/Resources/Prototypes/Entities/Mobs/Species/diona.yml
+++ b/Resources/Prototypes/Entities/Mobs/Species/diona.yml
@@ -112,6 +112,7 @@
32:
sprite: Mobs/Species/Human/displacement.rsi
state: jumpsuit-female
+ - type: Rootable
- type: entity
parent: BaseSpeciesDummy
diff --git a/Resources/Textures/Interface/Actions/rooting.png b/Resources/Textures/Interface/Actions/rooting.png
new file mode 100644
index 0000000000..4fc05fb3f3
Binary files /dev/null and b/Resources/Textures/Interface/Actions/rooting.png differ
diff --git a/Resources/Textures/Interface/Alerts/Rooted/rooted.png b/Resources/Textures/Interface/Alerts/Rooted/rooted.png
new file mode 100644
index 0000000000..a68a1009c0
Binary files /dev/null and b/Resources/Textures/Interface/Alerts/Rooted/rooted.png differ