Initial commit.

ball.h

@@ -0,0 +1,30 @@
+// -*- C++ -*-
+
+#ifndef MBOSTOCK_BALL_H
+#define MBOSTOCK_BALL_H
+
+#include "model.h"
+#include "physics/shape.h"
+#include "room_object.h"
+
+namespace mbostock {
+
+  class Ball : public RoomObject {
+  public:
+    Ball(const Vector& x, float radius);
+
+    virtual Model& model();
+    virtual const Shape& shape() const;
+    virtual float slip() const;
+
+    inline void setMaterial(const Material& m) { model_.setMaterial(m); }
+
+  private:
+    const Sphere sphere_;
+    SphereModel model_;
+  };
+
+}
+
+
+#endif