Fix the singularity (#8890)

* Revert "Fixes the singularity bouncing off the station. (#8452)"

This reverts commit dc186f1e24.

* Fix singulo

Content.Shared/Singularity/SharedSingularitySystem.cs

@@ -12,7 +12,6 @@ namespace Content.Shared.Singularity
         [Dependency] private readonly FixtureSystem _fixtures = default!;
 
         public const string DeleteFixture = "DeleteCircle";
-        public const string CollideFixture = "ColliderCircle";
 
         private float GetFalloff(int level)
         {
@@ -116,10 +115,17 @@ namespace Content.Shared.Singularity
                 appearance.SetData(SingularityVisuals.Level, value);
             }
 
-            if (physics != null && _fixtures.GetFixtureOrNull(physics, DeleteFixture) is {Shape: PhysShapeCircle deleteCircle} && _fixtures.GetFixtureOrNull(physics, CollideFixture) is {Shape: PhysShapeCircle collideCircle})
+            if (physics != null)
             {
-                deleteCircle.Radius = value - 0.5f;
+                var fixture = _fixtures.GetFixtureOrNull(physics, DeleteFixture);
-                collideCircle.Radius = value;
+
+                if (fixture != null)
+                {
+                    var circle = (PhysShapeCircle) fixture.Shape;
+                    circle.Radius = value - 0.5f;
+
+                    fixture.Hard = value <= 4;
+                }
             }
 
             if (EntityManager.TryGetComponent(singularity.Owner, out SingularityDistortionComponent? distortion))

Resources/Prototypes/Entities/Structures/Power/Generation/Singularity/singularity.yml

@@ -19,19 +19,10 @@
           radius: 0.5
       restitution: 0.9
       mass: 99999
-      hard: false
       mask:
       - AllMask
       layer:
       - AllMask
-    - id: ColliderCircle
-      shape:
-        !type:PhysShapeCircle
-        radius: 0.5
-      restitution: 0.9
-      mass: 99999
-      mask:
-      - FullTileMask
   - type: Singularity
     radsPerLevel: 1 # determines RadiationPulse's radiation per second.
   - type: SingularityDistortion
@@ -45,10 +36,6 @@
     state: singularity_1
     shader: unshaded
     netsync: false
-  - type: Icon
-    sprite: Structures/Power/Generation/Singularity/singularity_1.rsi
-    state: singularity_1
-    drawdepth: Items
   - type: PointLight
     enabled: true
     radius: 10