Better weightless yeeting and movement (#3573)

Co-authored-by: Metal Gear Sloth <metalgearsloth@gmail.com>

Content.Server/GameObjects/Components/Items/ThrowHelper.cs

@@ -17,7 +17,9 @@ namespace Content.Server.GameObjects.Components.Items
         /// </summary>
         /// <param name="entity"></param>
         /// <param name="direction">Will use the vector's magnitude as the strength of the impulse</param>
-        internal static void TryThrow(this IEntity entity, Vector2 direction, IEntity? user = null)
+        /// <param name="user"></param>
+        /// <param name="pushbackRatio">The ratio of impulse applied to the thrower</param>
+        internal static void TryThrow(this IEntity entity, Vector2 direction, IEntity? user = null, float pushbackRatio = 1.0f)
         {
             if (direction == Vector2.Zero || !entity.TryGetComponent(out PhysicsComponent? physicsComponent))
             {
@@ -45,6 +47,11 @@ namespace Content.Server.GameObjects.Components.Items
             }
 
             physicsComponent.ApplyLinearImpulse(direction);
+            // Give thrower an impulse in the other direction
+            if (user != null && pushbackRatio > 0.0f && user.TryGetComponent(out IPhysBody? body))
+            {
+                body.ApplyLinearImpulse(-direction * pushbackRatio);
+            }
         }
     }
 }

Content.Server/GameObjects/Components/Movement/AiControllerComponent.cs

@@ -90,7 +90,7 @@ namespace Content.Server.GameObjects.Components.Movement
 
         /// <inheritdoc />
         [ViewVariables(VVAccess.ReadWrite)]
-        public float PushStrength { get; set; }
+        public float PushStrength { get; set; } = 0.4f;
 
         /// <inheritdoc />
         [ViewVariables(VVAccess.ReadWrite)]

Content.Server/GameObjects/EntitySystems/HandsSystem.cs

@@ -6,6 +6,7 @@ using Content.Server.GameObjects.Components.Items.Storage;
 using Content.Server.GameObjects.Components.Stack;
 using Content.Server.GameObjects.EntitySystems.Click;
 using Content.Server.Interfaces.GameObjects.Components.Items;
+using Content.Shared.GameObjects.Components.Movement;
 using Content.Shared.GameObjects.EntitySystems;
 using Content.Shared.Input;
 using Content.Shared.Interfaces;
@@ -180,8 +181,17 @@ namespace Content.Server.GameObjects.EntitySystems
             if (direction == Vector2.Zero) return true;
 
             direction = direction.Normalized * MathF.Min(direction.Length, 8.0f);
+            var yeet = direction * ThrowForce * 15;
 
-            throwEnt.TryThrow(direction * ThrowForce * 15, playerEnt);
+            // Softer yeet in weightlessness
+            if (playerEnt.IsWeightless())
+            {
+                throwEnt.TryThrow(yeet / 4, playerEnt, 10.0f);
+            }
+            else
+            {
+                throwEnt.TryThrow(yeet, playerEnt);
+            }
 
             return true;
         }

Content.Shared/GameObjects/Components/Movement/SharedPlayerMobMoverComponent.cs

@@ -27,7 +27,7 @@ namespace Content.Shared.GameObjects.Components.Movement
         [DataField("grabRange")]
         private float _grabRange = 0.2f;
         [DataField("pushStrength")]
-        private float _pushStrength = 600.0f;
+        private float _pushStrength = 0.4f;
 
         [ViewVariables(VVAccess.ReadWrite)]
         public EntityCoordinates LastPosition { get; set; }

Content.Shared/Physics/Controllers/SharedMoverController.cs

@@ -83,6 +83,11 @@ namespace Content.Shared.Physics.Controllers
             // Target velocity.
             var total = (walkDir * mover.CurrentWalkSpeed + sprintDir * mover.CurrentSprintSpeed);
 
+            if (weightless)
+            {
+                total *= mobMover.PushStrength;
+            }
+
             if (total != Vector2.Zero)
             {
                 // This should have its event run during island solver soooo