1 files changed, 77 insertions, 0 deletions
diff --git a/dep/src/g3dlite/PhysicsFrame.cpp b/dep/src/g3dlite/PhysicsFrame.cpp
new file mode 100644
index 00000000000..28ba8f8d477
--- /dev/null
+++ b/dep/src/g3dlite/PhysicsFrame.cpp
@@ -0,0 +1,77 @@
+/**
+ @file PhysicsFrame.cpp
+
+ @maintainer Morgan McGuire, http://graphics.cs.williams.edu
+ 
+ @created 2002-07-09
+ @edited  2006-01-25
+*/
+
+#include "G3D/platform.h"
+#include "G3D/PhysicsFrame.h"
+#include "G3D/BinaryInput.h"
+#include "G3D/BinaryOutput.h"
+
+namespace G3D {
+
+PhysicsFrame::PhysicsFrame() {
+    translation = Vector3::zero();
+    rotation    = Quat();
+}
+
+
+PhysicsFrame::PhysicsFrame(
+    const CoordinateFrame& coordinateFrame) {
+
+    translation = coordinateFrame.translation;
+    rotation    = Quat(coordinateFrame.rotation);
+}
+
+
+PhysicsFrame PhysicsFrame::operator*(const PhysicsFrame& other) const {
+    PhysicsFrame result;
+
+    result.rotation = rotation * other.rotation;
+    result.translation = translation + rotation.toRotationMatrix() * other.translation;
+
+    return result;
+}
+
+
+CoordinateFrame PhysicsFrame::toCoordinateFrame() const {
+    CoordinateFrame f;
+    
+    f.translation = translation;
+    f.rotation    = rotation.toRotationMatrix();
+
+    return f;
+}
+
+
+PhysicsFrame PhysicsFrame::lerp(
+    const PhysicsFrame&     other,
+    float                   alpha) const {
+
+    PhysicsFrame result;
+
+    result.translation = translation.lerp(other.translation, alpha);
+    result.rotation    = rotation.slerp(other.rotation, alpha);
+
+    return result;
+}
+
+
+void PhysicsFrame::deserialize(class BinaryInput& b) {
+    translation.deserialize(b);
+    rotation.deserialize(b);
+}
+
+
+void PhysicsFrame::serialize(class BinaryOutput& b) const {
+    translation.serialize(b);
+    rotation.serialize(b);
+}
+
+
+}; // namespace
+