Re-organize all projects (#4166)

Content.Server/Throwing/ThrowHelper.cs

@@ -0,0 +1,61 @@
+#nullable enable
+using Content.Server.Interaction;
+using Content.Server.Items;
+using Content.Shared.MobState;
+using Content.Shared.Throwing;
+using Robust.Shared.GameObjects;
+using Robust.Shared.Log;
+using Robust.Shared.Maths;
+using Robust.Shared.Physics;
+
+namespace Content.Server.Throwing
+{
+    internal static class ThrowHelper
+    {
+        private const float ThrowAngularImpulse = 3.0f;
+
+        /// <summary>
+        ///     Tries to throw the entity if it has a physics component, otherwise does nothing.
+        /// </summary>
+        /// <param name="entity"></param>
+        /// <param name="direction">Will use the vector's magnitude as the strength of the impulse</param>
+        /// <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 (entity.Deleted || direction == Vector2.Zero || !entity.TryGetComponent(out PhysicsComponent? physicsComponent))
+            {
+                return;
+            }
+
+            if (physicsComponent.BodyType == BodyType.Static)
+            {
+                Logger.Warning("Tried to throw entity {entity} but can't throw static bodies!");
+                return;
+            }
+
+            if (entity.HasComponent<IMobStateComponent>())
+            {
+                Logger.Warning("Throwing not supported for mobs!");
+                return;
+            }
+
+            if (entity.HasComponent<ItemComponent>())
+            {
+                entity.EnsureComponent<ThrownItemComponent>().Thrower = user;
+                // Give it a l'il spin.
+                physicsComponent.ApplyAngularImpulse(ThrowAngularImpulse);
+
+                if (user != null)
+                    EntitySystem.Get<InteractionSystem>().ThrownInteraction(user, entity);
+            }
+
+            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);
+            }
+        }
+    }
+}