Initial commit.

switch.cpp

@@ -0,0 +1,49 @@
+// -*- C++ -*-
+
+#include "material.h"
+#include "physics/transform.h"
+#include "physics/vector.h"
+#include "switch.h"
+
+using namespace mbostock;
+
+Switch::Switch(const Vector& min, const Vector& max)
+    : AxisAlignedBlock(min, max), activeMaterial_(NULL) {
+}
+
+bool Switch::dynamic() const {
+  return (activeMaterial_ != NULL);
+}
+
+void Switch::addTarget(Transform& t) {
+  t.enable(false);
+  targets_.push_back(&t);
+}
+
+void Switch::setActiveMaterial(const Material& m) {
+  activeMaterial_ = &m;
+  inactiveMaterial_ = &model_.material();
+  inactiveTopMaterial_ = &model_.topMaterial();
+}
+
+void Switch::reset() {
+  if (activeMaterial_ != NULL) {
+    setMaterial(*inactiveMaterial_);
+    setTopMaterial(*inactiveTopMaterial_);
+  }
+  std::vector<Transform*>::const_iterator i;
+  for (i = targets_.begin(); i != targets_.end(); i++) {
+    (*i)->enable(false);
+  }
+}
+
+void Switch::applyWeight(float w, const Vector& x) {
+  if (activeMaterial_ != NULL) {
+    setMaterial(*activeMaterial_);
+    setTopMaterial(*activeMaterial_);
+  }
+  std::vector<Transform*>::const_iterator i;
+  for (i = targets_.begin(); i != targets_.end(); i++) {
+    (*i)->enable();
+  }
+}