Re-organize all projects (#4166)

Content.Server/Explosion/Components/ExplosiveProjectileComponent.cs

@@ -0,0 +1,27 @@
+using Robust.Shared.GameObjects;
+using Robust.Shared.Physics.Collision;
+using Robust.Shared.Physics.Dynamics;
+
+namespace Content.Server.Explosion.Components
+{
+    [RegisterComponent]
+    public class ExplosiveProjectileComponent : Component, IStartCollide
+    {
+        public override string Name => "ExplosiveProjectile";
+
+        public override void Initialize()
+        {
+            base.Initialize();
+
+            Owner.EnsureComponent<ExplosiveComponent>();
+        }
+
+        void IStartCollide.CollideWith(Fixture ourFixture, Fixture otherFixture, in Manifold manifold)
+        {
+            if (Owner.TryGetComponent(out ExplosiveComponent? explosive))
+            {
+                explosive.Explosion();
+            }
+        }
+    }
+}