Harpy Flight System

Content.Client/Flight/Components/FlightVisualsComponent.cs

@@ -0,0 +1,40 @@
+using Robust.Client.Graphics;
+using Robust.Shared.GameStates;
+
+namespace Content.Client.Flight.Components;
+
+[RegisterComponent]
+public sealed partial class FlightVisualsComponent : Component
+{
+    /// <summary>
+    ///     How long does the animation last
+    /// </summary>
+    [DataField]
+    public float Speed;
+
+    /// <summary>
+    ///     How far it goes in any direction.
+    /// </summary>
+    [DataField]
+    public float Multiplier;
+
+    /// <summary>
+    ///     How much the limbs (if there are any) rotate.
+    /// </summary>
+    [DataField]
+    public float Offset;
+
+    /// <summary>
+    ///     Are we animating layers or the entire sprite?
+    /// </summary>
+    public bool AnimateLayer = false;
+    public int? TargetLayer;
+
+    [DataField]
+    public string AnimationKey = "default";
+
+    [ViewVariables(VVAccess.ReadWrite)]
+    public ShaderInstance Shader = default!;
+
+
+}

Content.Client/Flight/FlightSystem.cs

@@ -0,0 +1,67 @@
+using Robust.Client.GameObjects;
+using Content.Shared.Flight;
+using Content.Shared.Flight.Events;
+using Content.Client.Flight.Components;
+
+namespace Content.Client.Flight;
+public sealed class FlightSystem : SharedFlightSystem
+{
+    [Dependency] private readonly IEntityManager _entityManager = default!;
+    public override void Initialize()
+    {
+        base.Initialize();
+
+        SubscribeNetworkEvent<FlightEvent>(OnFlight);
+
+    }
+
+    private void OnFlight(FlightEvent args)
+    {
+        var uid = GetEntity(args.Uid);
+        if (!_entityManager.TryGetComponent(uid, out SpriteComponent? sprite)
+            || !args.IsAnimated
+            || !_entityManager.TryGetComponent(uid, out FlightComponent? flight))
+            return;
+
+
+        int? targetLayer = null;
+        if (flight.IsLayerAnimated && flight.Layer is not null)
+        {
+            targetLayer = GetAnimatedLayer(uid, flight.Layer, sprite);
+            if (targetLayer == null)
+                return;
+        }
+
+        if (args.IsFlying && args.IsAnimated && flight.AnimationKey != "default")
+        {
+            var comp = new FlightVisualsComponent
+            {
+                AnimateLayer = flight.IsLayerAnimated,
+                AnimationKey = flight.AnimationKey,
+                Multiplier = flight.ShaderMultiplier,
+                Offset = flight.ShaderOffset,
+                Speed = flight.ShaderSpeed,
+                TargetLayer = targetLayer,
+            };
+            AddComp(uid, comp);
+        }
+        if (!args.IsFlying)
+            RemComp<FlightVisualsComponent>(uid);
+    }
+
+    public int? GetAnimatedLayer(EntityUid uid, string targetLayer, SpriteComponent? sprite = null)
+    {
+        if (!Resolve(uid, ref sprite))
+            return null;
+
+        int index = 0;
+        foreach (var layer in sprite.AllLayers)
+        {
+            // This feels like absolute shitcode, isn't there a better way to check for it?
+            if (layer.Rsi?.Path.ToString() == targetLayer)
+                return index;
+            index++;
+        }
+        return null;
+    }
+}

Content.Client/Flight/FlyingVisualizerSystem.cs

@@ -0,0 +1,64 @@
+using Content.Client.Flight.Components;
+using Robust.Client.GameObjects;
+using Robust.Client.Graphics;
+using Robust.Shared.Prototypes;
+
+namespace Content.Client.Flight;
+
+/// <summary>
+/// Handles offsetting an entity while flying
+/// </summary>
+public sealed class FlyingVisualizerSystem : EntitySystem
+{
+    [Dependency] private readonly IPrototypeManager _protoMan = default!;
+    [Dependency] private readonly SpriteSystem _spriteSystem = default!;
+    public override void Initialize()
+    {
+        base.Initialize();
+        SubscribeLocalEvent<FlightVisualsComponent, ComponentStartup>(OnStartup);
+        SubscribeLocalEvent<FlightVisualsComponent, ComponentShutdown>(OnShutdown);
+        SubscribeLocalEvent<FlightVisualsComponent, BeforePostShaderRenderEvent>(OnBeforeShaderPost);
+    }
+
+    private void OnStartup(EntityUid uid, FlightVisualsComponent comp, ComponentStartup args)
+    {
+        comp.Shader = _protoMan.Index<ShaderPrototype>(comp.AnimationKey).InstanceUnique();
+        AddShader(uid, comp.Shader, comp.AnimateLayer, comp.TargetLayer);
+        SetValues(comp, comp.Speed, comp.Offset, comp.Multiplier);
+    }
+
+    private void OnShutdown(EntityUid uid, FlightVisualsComponent comp, ComponentShutdown args)
+    {
+        AddShader(uid, null, comp.AnimateLayer, comp.TargetLayer);
+    }
+
+    private void AddShader(Entity<SpriteComponent?> entity, ShaderInstance? shader, bool animateLayer, int? layer)
+    {
+        if (!Resolve(entity, ref entity.Comp, false))
+            return;
+
+        if (!animateLayer)
+            entity.Comp.PostShader = shader;
+
+        if (animateLayer && layer is not null)
+            entity.Comp.LayerSetShader(layer.Value, shader);
+
+        entity.Comp.GetScreenTexture = shader is not null;
+        entity.Comp.RaiseShaderEvent = shader is not null;
+    }
+
+    /// <summary>
+    ///     This function can be used to modify the shader's values while its running.
+    /// </summary>
+    private void OnBeforeShaderPost(EntityUid uid, FlightVisualsComponent comp, ref BeforePostShaderRenderEvent args)
+    {
+        SetValues(comp, comp.Speed, comp.Offset, comp.Multiplier);
+    }
+
+    private void SetValues(FlightVisualsComponent comp, float speed, float offset, float multiplier)
+    {
+        comp.Shader.SetParameter("Speed", speed);
+        comp.Shader.SetParameter("Offset", offset);
+        comp.Shader.SetParameter("Multiplier", multiplier);
+    }
+}

Content.Server/Flight/FlightSystem.cs

@@ -0,0 +1,158 @@
+
+using Content.Shared.Cuffs.Components;
+using Content.Shared.Damage.Components;
+using Content.Shared.DoAfter;
+using Content.Shared.Flight;
+using Content.Shared.Flight.Events;
+using Content.Shared.Mobs;
+using Content.Shared.Popups;
+using Content.Shared.Stunnable;
+using Content.Shared.Zombies;
+using Robust.Shared.Audio.Systems;
+
+namespace Content.Server.Flight;
+public sealed class FlightSystem : SharedFlightSystem
+{
+    [Dependency] private readonly SharedAudioSystem _audio = default!;
+    [Dependency] private readonly SharedDoAfterSystem _doAfter = default!;
+    [Dependency] private readonly SharedPopupSystem _popupSystem = default!;
+
+    public override void Initialize()
+    {
+        base.Initialize();
+
+        SubscribeLocalEvent<FlightComponent, ToggleFlightEvent>(OnToggleFlight);
+        SubscribeLocalEvent<FlightComponent, FlightDoAfterEvent>(OnFlightDoAfter);
+        SubscribeLocalEvent<FlightComponent, MobStateChangedEvent>(OnMobStateChangedEvent);
+        SubscribeLocalEvent<FlightComponent, EntityZombifiedEvent>(OnZombified);
+        SubscribeLocalEvent<FlightComponent, KnockedDownEvent>(OnKnockedDown);
+        SubscribeLocalEvent<FlightComponent, StunnedEvent>(OnStunned);
+        SubscribeLocalEvent<FlightComponent, SleepStateChangedEvent>(OnSleep);
+    }
+    public override void Update(float frameTime)
+    {
+        base.Update(frameTime);
+
+        var query = EntityQueryEnumerator<FlightComponent>();
+        while (query.MoveNext(out var uid, out var component))
+        {
+            if (!component.On)
+                continue;
+
+            component.TimeUntilFlap -= frameTime;
+
+            if (component.TimeUntilFlap > 0f)
+                continue;
+
+            _audio.PlayPvs(component.FlapSound, uid);
+            component.TimeUntilFlap = component.FlapInterval;
+
+        }
+    }
+
+    #region Core Functions
+    private void OnToggleFlight(EntityUid uid, FlightComponent component, ToggleFlightEvent args)
+    {
+        // If the user isnt flying, we check for conditionals and initiate a doafter.
+        if (!component.On)
+        {
+            if (!CanFly(uid, component))
+                return;
+
+            var doAfterArgs = new DoAfterArgs(EntityManager,
+            uid, component.ActivationDelay,
+            new FlightDoAfterEvent(), uid, target: uid)
+            {
+                BlockDuplicate = true,
+                BreakOnTargetMove = true,
+                BreakOnUserMove = true,
+                BreakOnDamage = true,
+                NeedHand = true
+            };
+
+            if (!_doAfter.TryStartDoAfter(doAfterArgs))
+                return;
+        }
+        else
+            ToggleActive(uid, false, component);
+    }
+
+    private void OnFlightDoAfter(EntityUid uid, FlightComponent component, FlightDoAfterEvent args)
+    {
+        if (args.Handled || args.Cancelled)
+            return;
+
+        ToggleActive(uid, true, component);
+        args.Handled = true;
+    }
+
+    #endregion
+
+    #region Conditionals
+
+    private bool CanFly(EntityUid uid, FlightComponent component)
+    {
+        if (TryComp<CuffableComponent>(uid, out var cuffableComp) && !cuffableComp.CanStillInteract)
+        {
+            _popupSystem.PopupEntity(Loc.GetString("no-flight-while-restrained"), uid, uid, PopupType.Medium);
+            return false;
+        }
+
+        if (HasComp<ZombieComponent>(uid))
+        {
+            _popupSystem.PopupEntity(Loc.GetString("no-flight-while-zombified"), uid, uid, PopupType.Medium);
+            return false;
+        }
+        return true;
+    }
+
+    private void OnMobStateChangedEvent(EntityUid uid, FlightComponent component, MobStateChangedEvent args)
+    {
+        if (!component.On
+            || args.NewMobState is MobState.Critical or MobState.Dead)
+            return;
+
+        ToggleActive(args.Target, false, component);
+    }
+
+    private void OnZombified(EntityUid uid, FlightComponent component, ref EntityZombifiedEvent args)
+    {
+        if (!component.On)
+            return;
+
+        ToggleActive(args.Target, false, component);
+        if (!TryComp<StaminaComponent>(uid, out var stamina))
+            return;
+        Dirty(uid, stamina);
+    }
+
+    private void OnKnockedDown(EntityUid uid, FlightComponent component, ref KnockedDownEvent args)
+    {
+        if (!component.On)
+            return;
+
+        ToggleActive(uid, false, component);
+    }
+
+    private void OnStunned(EntityUid uid, FlightComponent component, ref StunnedEvent args)
+    {
+        if (!component.On)
+            return;
+
+        ToggleActive(uid, false, component);
+    }
+
+    private void OnSleep(EntityUid uid, FlightComponent component, ref SleepStateChangedEvent args)
+    {
+        if (!component.On
+            || !args.FellAsleep)
+            return;
+
+        ToggleActive(uid, false, component);
+        if (!TryComp<StaminaComponent>(uid, out var stamina))
+            return;
+
+        Dirty(uid, stamina);
+    }
+    #endregion
+}

Content.Shared/Cuffs/SharedCuffableSystem.cs

@@ -7,6 +7,7 @@
 using Content.Shared.Contests;
 using Content.Shared.Cuffs.Components;
 using Content.Shared.Database;
+using Content.Shared.Flight;
 using Content.Shared.DoAfter;
 using Content.Shared.Hands;
 using Content.Shared.Hands.Components;
@@ -479,6 +480,13 @@ public bool TryCuffing(EntityUid user, EntityUid target, EntityUid handcuff, Han
                 return true;
             }
 
+            if (TryComp<FlightComponent>(target, out var flight) && flight.On)
+            {
+                _popup.PopupClient(Loc.GetString("handcuff-component-target-flying-error",
+                    ("targetName", Identity.Name(target, EntityManager, user))), user, user);
+                return true;
+            }
+
             var cuffTime = handcuffComponent.CuffTime;
 
             if (HasComp<StunnedComponent>(target))
@@ -731,4 +739,4 @@ private sealed partial class AddCuffDoAfterEvent : SimpleDoAfterEvent
         {
         }
     }
-}
+}

Content.Shared/Damage/Components/StaminaComponent.cs

@@ -39,6 +39,13 @@ public sealed partial class StaminaComponent : Component
     [ViewVariables(VVAccess.ReadWrite), DataField, AutoNetworkedField]
     public float CritThreshold = 100f;
 
+    /// <summary>
+    /// A dictionary of active stamina drains, with the key being the source of the drain,
+    /// DrainRate how much it changes per tick, and ModifiesSpeed if it should slow down the user.
+    /// </summary>
+    [DataField, AutoNetworkedField]
+    public Dictionary<EntityUid, (float DrainRate, bool ModifiesSpeed)> ActiveDrains = new();
+
     /// <summary>
     /// How long will this mob be stunned for?
     /// </summary>
@@ -63,4 +70,4 @@ public sealed partial class StaminaComponent : Component
     /// </summary>
     [DataField, AutoNetworkedField]
     public float SlowdownMultiplier = 0.75f;
-}
+}