Anomalies (#13371)

Content.Client/Anomaly/AnomalySystem.cs

@@ -0,0 +1,59 @@
+using Content.Shared.Anomaly;
+using Content.Shared.Anomaly.Components;
+using Robust.Client.GameObjects;
+using Robust.Shared.Timing;
+
+namespace Content.Client.Anomaly;
+
+public sealed class AnomalySystem : SharedAnomalySystem
+{
+    [Dependency] private readonly IGameTiming _timing = default!;
+
+    /// <inheritdoc/>
+    public override void Initialize()
+    {
+        base.Initialize();
+
+        SubscribeLocalEvent<AnomalyComponent, AppearanceChangeEvent>(OnAppearanceChanged);
+    }
+
+    private void OnAppearanceChanged(EntityUid uid, AnomalyComponent component, ref AppearanceChangeEvent args)
+    {
+        if (args.Sprite is not { } sprite)
+            return;
+
+        if (!Appearance.TryGetData(uid, AnomalyVisuals.IsPulsing, out bool pulsing, args.Component))
+            pulsing = false;
+
+        if (Appearance.TryGetData(uid, AnomalyVisuals.IsPulsing, out bool super, args.Component) && super)
+            pulsing = super;
+
+        if (HasComp<AnomalySupercriticalComponent>(uid))
+            pulsing = true;
+
+        if (!sprite.LayerMapTryGet(AnomalyVisualLayers.Base, out var layer) ||
+            !sprite.LayerMapTryGet(AnomalyVisualLayers.Animated, out var animatedLayer))
+            return;
+
+        sprite.LayerSetVisible(layer, !pulsing);
+        sprite.LayerSetVisible(animatedLayer, pulsing);
+    }
+
+    public override void Update(float frameTime)
+    {
+        base.Update(frameTime);
+
+        foreach (var (super, sprite) in EntityQuery<AnomalySupercriticalComponent, SpriteComponent>())
+        {
+            var completion = 1f - (float) ((super.EndTime - _timing.CurTime) / super.SupercriticalDuration);
+            var scale = completion * (super.MaxScaleAmount - 1f) + 1f;
+            sprite.Scale = new Vector2(scale, scale);
+
+            var transparency = (byte) (65 * (1f - completion) + 190);
+            if (transparency < sprite.Color.AByte)
+            {
+                sprite.Color = sprite.Color.WithAlpha(transparency);
+            }
+        }
+    }
+}