Initial commit.

room_object.cpp

@@ -0,0 +1,40 @@
+// -*- C++ -*-
+
+#include "physics/vector.h"
+#include "room_object.h"
+
+using namespace mbostock;
+
+bool RoomObject::dynamic() const {
+  return false;
+}
+
+Vector RoomObject::velocity(const Vector& x) const {
+  return Vector::ZERO();
+}
+
+float RoomObject::slip() const {
+  return 0.f;
+}
+
+void RoomObject::resetForces() {
+}
+
+void RoomObject::applyForce(UnaryForce& force) {
+}
+
+void RoomObject::applyWeight(float w, const Vector& x) {
+}
+
+void RoomObject::step(const ParticleSimulator& s) {
+}
+
+void RoomObject::constrainInternal() {
+}
+
+void RoomObject::reset() {
+}
+
+bool DynamicRoomObject::dynamic() const {
+  return true;
+}