Re-organize all projects (#4166)

Content.Server/Flash/Components/FlashProjectileComponent.cs

@@ -0,0 +1,39 @@
+using Content.Server.Projectiles.Components;
+using Robust.Shared.GameObjects;
+using Robust.Shared.Physics.Collision;
+using Robust.Shared.Physics.Dynamics;
+using Robust.Shared.Serialization.Manager.Attributes;
+
+namespace Content.Server.Flash.Components
+{
+    /// <summary>
+    /// Upon colliding with an object this will flash in an area around it
+    /// </summary>
+    [RegisterComponent]
+    public class FlashProjectileComponent : Component, IStartCollide
+    {
+        public override string Name => "FlashProjectile";
+
+        [DataField("range")]
+        private float _range = 1.0f;
+        [DataField("duration")]
+        private float _duration = 8.0f;
+
+        private bool _flashed;
+
+        public override void Initialize()
+        {
+            base.Initialize();
+            // Shouldn't be using this without a ProjectileComponent because it will just immediately collide with thrower
+            Owner.EnsureComponent<ProjectileComponent>();
+        }
+
+        void IStartCollide.CollideWith(Fixture ourFixture, Fixture otherFixture, in Manifold manifold)
+        {
+            if (_flashed) return;
+
+            FlashableComponent.FlashAreaHelper(Owner, _range, _duration);
+            _flashed = true;
+        }
+    }
+}