Night and thermal vision device

Content.Client/_CorvaxNext/Overlays/BaseSwitchableOverlay.cs

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+using Content.Shared._CorvaxNext.Overlays;
+using Robust.Client.Graphics;
+using Robust.Client.Player;
+using Robust.Shared.Enums;
+using Robust.Shared.Prototypes;
+using System.Numerics;
+
+namespace Content.Client._CorvaxNext.Overlays;
+
+public class BaseSwitchableOverlay<TComp> : Overlay
+    where TComp : SwitchableOverlayComponent
+{
+    [Dependency] private readonly IPrototypeManager _prototype = default!;
+    [Dependency] private readonly IPlayerManager _player = default!;
+    [Dependency] private readonly IEntityManager _entity = default!;
+
+    public override bool RequestScreenTexture => true;
+    public override OverlaySpace Space => OverlaySpace.WorldSpace;
+    private readonly ShaderInstance _shader;
+
+    public BaseSwitchableOverlay()
+    {
+        IoCManager.InjectDependencies(this);
+        _shader = _prototype.Index<ShaderPrototype>("NightVision").Instance().Duplicate();
+    }
+
+    protected override void Draw(in OverlayDrawArgs args)
+    {
+        if (ScreenTexture is null
+            || _player.LocalEntity is null
+            || !_entity.TryGetComponent<TComp>(_player.LocalEntity.Value, out var component)
+            || !component.IsActive)
+            return;
+
+        _shader.SetParameter("SCREEN_TEXTURE", ScreenTexture);
+        _shader.SetParameter("tint", component.Tint);
+        _shader.SetParameter("luminance_threshold", component.Strength);
+        _shader.SetParameter("noise_amount", component.Noise);
+
+        var worldHandle = args.WorldHandle;
+
+        worldHandle.SetTransform(Matrix3x2.Identity);
+        worldHandle.UseShader(_shader);
+        worldHandle.DrawRect(args.WorldBounds, component.Color);
+        worldHandle.UseShader(null);
+    }
+}

Content.Client/_CorvaxNext/Overlays/NightVisionSystem.cs

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+using Content.Shared._CorvaxNext.Overlays;
+using Content.Shared.GameTicking;
+using Robust.Client.Graphics;
+using Robust.Client.Player;
+using Robust.Shared.Player;
+
+namespace Content.Client._CorvaxNext.Overlays;
+
+public sealed class NightVisionSystem : SwitchableOverlaySystem<NightVisionComponent, ToggleNightVisionEvent>
+{
+    [Dependency] private readonly IPlayerManager _player = default!;
+    [Dependency] private readonly IOverlayManager _overlayMan = default!;
+    [Dependency] private readonly ILightManager _lightManager = default!;
+
+    private BaseSwitchableOverlay<NightVisionComponent> _overlay = default!;
+
+    public override void Initialize()
+    {
+        base.Initialize();
+
+        SubscribeLocalEvent<NightVisionComponent, PlayerAttachedEvent>(OnPlayerAttached);
+        SubscribeLocalEvent<NightVisionComponent, PlayerDetachedEvent>(OnPlayerDetached);
+        SubscribeLocalEvent<RoundRestartCleanupEvent>(OnRestart);
+
+        _overlay = new BaseSwitchableOverlay<NightVisionComponent>();
+    }
+
+    private void OnPlayerAttached(EntityUid uid, NightVisionComponent component, PlayerAttachedEvent args)
+    {
+        if (!component.IsActive)
+            return;
+
+        UpdateVision(args.Player, component.IsActive);
+    }
+
+    private void OnPlayerDetached(EntityUid uid, NightVisionComponent component, PlayerDetachedEvent args)
+    {
+        UpdateVision(args.Player, false);
+    }
+
+    private void OnRestart(RoundRestartCleanupEvent ev)
+    {
+        _overlayMan.RemoveOverlay(_overlay);
+        _lightManager.DrawLighting = true;
+    }
+
+    protected override void UpdateVision(EntityUid uid, bool active)
+    {
+        if (_player.LocalSession?.AttachedEntity != uid)
+            return;
+
+        UpdateOverlay(active);
+        UpdateNightVision(active);
+    }
+
+    private void UpdateVision(ICommonSession player, bool active)
+    {
+        if (_player.LocalSession != player)
+            return;
+
+        UpdateOverlay(active);
+        UpdateNightVision(active);
+    }
+
+    private void UpdateNightVision(bool active)
+    {
+        _lightManager.DrawLighting = !active;
+    }
+
+    private void UpdateOverlay(bool active)
+    {
+        if (_player.LocalEntity == null)
+        {
+            _overlayMan.RemoveOverlay(_overlay);
+            return;
+        }
+
+        active |= TryComp<NightVisionComponent>(_player.LocalEntity.Value, out var component) && component.IsActive;
+
+        if (active)
+            _overlayMan.AddOverlay(_overlay);
+        else
+            _overlayMan.RemoveOverlay(_overlay);
+    }
+}

Content.Client/_CorvaxNext/Overlays/ThermalVisionOverlay.cs

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+using System.Linq;
+using System.Numerics;
+using Content.Client.Stealth;
+using Content.Shared._CorvaxNext.Overlays;
+using Content.Shared.Body.Components;
+using Content.Shared.Stealth.Components;
+using Robust.Client.GameObjects;
+using Robust.Client.Graphics;
+using Robust.Client.Player;
+using Robust.Shared.Enums;
+using Robust.Shared.Map;
+
+namespace Content.Client._CorvaxNext.Overlays;
+
+public sealed class ThermalVisionOverlay : Overlay
+{
+    [Dependency] private readonly IEntityManager _entity = default!;
+    [Dependency] private readonly IPlayerManager _players = default!;
+
+    private readonly TransformSystem _transform;
+    private readonly OccluderSystem _occluder;
+    private readonly StealthSystem _stealth;
+    private readonly ContainerSystem _container;
+
+    public override bool RequestScreenTexture => true;
+    public override OverlaySpace Space => OverlaySpace.WorldSpace;
+
+    private readonly List<ThermalVisionRenderEntry> _entries = [];
+
+    public ThermalVisionOverlay()
+    {
+        IoCManager.InjectDependencies(this);
+
+        _container = _entity.System<ContainerSystem>();
+        _transform = _entity.System<TransformSystem>();
+        _occluder = _entity.System<OccluderSystem>();
+        _stealth = _entity.System<StealthSystem>();
+
+        ZIndex = -1;
+    }
+
+    protected override void Draw(in OverlayDrawArgs args)
+    {
+        if (ScreenTexture is null
+            || _players.LocalEntity is null
+            || !_entity.TryGetComponent<ThermalVisionComponent>(_players.LocalEntity.Value, out var component)
+            || !component.IsActive)
+            return;
+
+        var worldHandle = args.WorldHandle;
+        var eye = args.Viewport.Eye;
+
+        if (eye is null)
+            return;
+
+        var mapId = eye.Position.MapId;
+        var eyeRot = eye.Rotation;
+
+        _entries.Clear();
+        var entities = _entity.EntityQueryEnumerator<BodyComponent, SpriteComponent, TransformComponent>();
+        while (entities.MoveNext(out var uid, out var body, out var sprite, out var xform))
+        {
+            if (!CanSee(uid, sprite, body))
+                continue;
+
+            var entity = uid;
+
+            if (_container.TryGetOuterContainer(uid, xform, out var container))
+            {
+                var owner = container.Owner;
+                if (_entity.TryGetComponent<SpriteComponent>(owner, out var ownerSprite)
+                    && _entity.TryGetComponent<TransformComponent>(owner, out var ownerXform))
+                {
+                    entity = owner;
+                    sprite = ownerSprite;
+                    xform = ownerXform;
+                }
+            }
+
+            if (_entries.Any(e => e.Ent.Item1 == entity))
+                continue;
+
+            _entries.Add(new ThermalVisionRenderEntry((entity, sprite, xform, body), mapId, eyeRot));
+        }
+
+        foreach (var entry in _entries)
+        {
+            Render(entry.Ent, entry.Map, worldHandle, entry.EyeRot);
+        }
+
+        worldHandle.SetTransform(Matrix3x2.Identity);
+    }
+
+    private void Render(Entity<SpriteComponent, TransformComponent, BodyComponent> ent,
+        MapId? map,
+        DrawingHandleWorld handle,
+        Angle eyeRot)
+    {
+        var (uid, sprite, xform, body) = ent;
+        if (xform.MapID != map || HasOccluders(uid) || !CanSee(uid, sprite, body))
+            return;
+
+        var position = _transform.GetWorldPosition(xform);
+        var rotation = _transform.GetWorldRotation(xform);
+
+        sprite.Render(handle, eyeRot, rotation, position: position);
+    }
+
+    private bool CanSee(EntityUid uid, SpriteComponent sprite, BodyComponent body)
+    {
+        return sprite.Visible
+               && !_entity.HasComponent<ThermalInvisibilityComponent>(uid)
+               && (!_entity.TryGetComponent(uid, out StealthComponent? stealth)
+                   || _stealth.GetVisibility(uid, stealth) > 0.5f);
+    }
+
+    private bool HasOccluders(EntityUid uid)
+    {
+        var mapCoordinates = _transform.GetMapCoordinates(uid);
+        var occluders = _occluder.QueryAabb(mapCoordinates.MapId,
+            Box2.CenteredAround(mapCoordinates.Position, new Vector2(0.3f, 0.3f)));
+
+        return occluders.Any(o => o.Component.Enabled);
+    }
+}
+
+public record struct ThermalVisionRenderEntry(
+    (EntityUid, SpriteComponent, TransformComponent, BodyComponent) Ent,
+    MapId? Map,
+    Angle EyeRot);

Content.Client/_CorvaxNext/Overlays/ThermalVisionSystem.cs

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+using Content.Shared._CorvaxNext.Overlays;
+using Content.Shared.GameTicking;
+using Robust.Client.Graphics;
+using Robust.Client.Player;
+using Robust.Shared.Player;
+
+namespace Content.Client._CorvaxNext.Overlays;
+
+public sealed class ThermalVisionSystem : SwitchableOverlaySystem<ThermalVisionComponent, ToggleThermalVisionEvent>
+{
+    [Dependency] private readonly IPlayerManager _player = default!;
+    [Dependency] private readonly IOverlayManager _overlayMan = default!;
+
+    private ThermalVisionOverlay _thermalOverlay = default!;
+    private BaseSwitchableOverlay<ThermalVisionComponent> _overlay = default!;
+
+    public override void Initialize()
+    {
+        base.Initialize();
+
+        SubscribeLocalEvent<ThermalVisionComponent, PlayerAttachedEvent>(OnPlayerAttached);
+        SubscribeLocalEvent<ThermalVisionComponent, PlayerDetachedEvent>(OnPlayerDetached);
+        SubscribeLocalEvent<RoundRestartCleanupEvent>(OnRestart);
+
+        _thermalOverlay = new ThermalVisionOverlay();
+        _overlay = new BaseSwitchableOverlay<ThermalVisionComponent>();
+    }
+
+    private void OnPlayerAttached(EntityUid uid, ThermalVisionComponent component, PlayerAttachedEvent args)
+    {
+        if (!component.IsActive)
+            return;
+
+        UpdateVision(args.Player, component.IsActive);
+    }
+
+    private void OnPlayerDetached(EntityUid uid, ThermalVisionComponent component, PlayerDetachedEvent args)
+    {
+        UpdateVision(args.Player, false);
+    }
+
+    private void OnRestart(RoundRestartCleanupEvent ev)
+    {
+        _overlayMan.RemoveOverlay(_thermalOverlay);
+        _overlayMan.RemoveOverlay(_overlay);
+    }
+
+    protected override void UpdateVision(EntityUid uid, bool active)
+    {
+        if (_player.LocalSession?.AttachedEntity != uid)
+            return;
+
+        UpdateOverlay(active, _thermalOverlay);
+        UpdateOverlay(active, _overlay);
+    }
+
+    private void UpdateVision(ICommonSession player, bool active)
+    {
+        if (_player.LocalSession != player)
+            return;
+
+        UpdateOverlay(active, _thermalOverlay);
+        UpdateOverlay(active, _overlay);
+    }
+
+    private void UpdateOverlay(bool active, Overlay overlay)
+    {
+        if (_player.LocalEntity == null)
+        {
+            _overlayMan.RemoveOverlay(overlay);
+            return;
+        }
+
+        active |= TryComp<ThermalVisionComponent>(_player.LocalEntity.Value, out var component) && component.IsActive;
+
+        if (active)
+            _overlayMan.AddOverlay(overlay);
+        else
+            _overlayMan.RemoveOverlay(overlay);
+    }
+}

Content.Server/_CorvaxNext/Overlays/NightVisionSystem.cs

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+using Content.Shared._CorvaxNext.Overlays;
+
+namespace Content.Server._CorvaxNext.Overlays;
+
+public sealed class NightVisionSystem : SwitchableOverlaySystem<NightVisionComponent, ToggleNightVisionEvent>;

Content.Server/_CorvaxNext/Overlays/ThermalVisionSystem.cs

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+using Content.Shared._CorvaxNext.Overlays;
+
+namespace Content.Server._CorvaxNext.Overlays;
+
+public sealed class ThermalVisionSystem : SwitchableOverlaySystem<ThermalVisionComponent, ToggleThermalVisionEvent>;

Content.Shared/_CorvaxNext/Clothing/Components/ClothingGrantComponentComponent.cs

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+using Robust.Shared.Prototypes;
+
+namespace Content.Shared._CorvaxNext.Clothing
+{
+    [RegisterComponent]
+    public sealed partial class ClothingGrantComponentComponent : Component
+    {
+        [DataField("component")]
+        [AlwaysPushInheritance]
+        public ComponentRegistry Components { get; private set; } = new();
+
+        public bool IsActive = false;
+    }
+}

Content.Shared/_CorvaxNext/Clothing/Components/ClothingGrantTagComponent.cs

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+namespace Content.Shared._CorvaxNext.Clothing;
+
+[RegisterComponent]
+public sealed partial class ClothingGrantTagComponent : Component
+{
+    [DataField("tag")]
+    public string Tag = "";
+
+    public bool IsActive = false;
+}