Removed spaces from top-level directory names.

Spaces tend to cause annoyances in a Unix-style shell environment.
This change fixes that.

86_Target/csharp/Target/Explosion.cs

@@ -0,0 +1,22 @@
+namespace Target
+{
+    internal class Explosion
+    {
+        private readonly Point _position;
+
+        public Explosion(Point position, Offset targetOffset)
+        {
+            _position = position;
+            FromTarget = targetOffset;
+            DistanceToTarget = targetOffset.Distance;
+        }
+
+        public Point Position => _position;
+        public Offset FromTarget { get; }
+        public float DistanceToTarget { get; }
+        public string GetBearing() => _position.GetBearing();
+
+        public bool IsHit => DistanceToTarget <= 20;
+        public bool IsTooClose => _position.Distance < 20;
+    }
+}