Add support for motion controllers

[libs/vr.git] / source / motioncontroller.cpp

diff --git a/source/motioncontroller.cpp b/source/motioncontroller.cpp
new file mode 100644 (file)
index 0000000..0f82911
--- /dev/null
+++ b/source/motioncontroller.cpp
@@ -0,0 +1,43 @@
+#include <stdexcept>
+#include "headtrackingcamera.h"
+#include "motioncontroller.h"
+#include "stereoview.h"
+
+using namespace std;
+
+namespace Msp {
+namespace VR {
+
+MotionController::MotionController():
+       view(0)
+{ }
+
+MotionController::~MotionController()
+{
+       detach_from_view();
+}
+
+void MotionController::attach_to_view(StereoView &v)
+{
+       detach_from_view();
+       view = &v;
+       view->add_controller(*this);
+}
+
+void MotionController::detach_from_view()
+{
+       if(view)
+               view->remove_controller(*this);
+       view = 0;
+}
+
+void MotionController::update_from_matrix(const GL::Matrix &m)
+{
+       matrix = m;
+       if(view)
+               if(const HeadTrackingCamera *head_camera = view->get_head_camera())
+                       matrix = head_camera->get_base_matrix()*matrix;
+}
+
+} // namespace VR
+} // namespace Msp