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/** |
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* @class StuntDouble StuntDouble.hpp "Primitives/StuntDouble.hpp" |
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* @brief |
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* "Don't move, or you're dead! Stand up! Captain, we've got them!" |
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* |
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* "Spectacular stunt, my friends, but all for naught. Turn around |
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* please. Ha. What a pity. What a pity. So, Princess, you thought |
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* you could outwit the imperious forces of...." |
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* |
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* "You idiots! These are not them. You've captured their stunt |
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* doubles! Search the area. Find them! Find them!" |
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* |
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* StuntDouble is a very strange idea. A StuntDouble stands in for |
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* some object that can be manipulated by the Integrators or |
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* Minimizers. Some of the manipulable objects are Atoms, some are |
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* DirectionalAtoms, and some are RigidBodies. StuntDouble |
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* provides an interface for the Integrators and Minimizers to use, |
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* and does some preliminary sanity checking so that the program |
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< |
* doesn't try to do something stupid like torque an Atom |
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* doesn't try to do something stupid like torque an Atom (The |
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* quotes above are from Spaceballs...) |
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* |
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* @note the dynamic data of stuntdouble will be stored outside of the class |
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*/ |
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class StuntDouble{ |
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*/ |
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bool isDirectional(){ |
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return isDirectionalAtom() || isRigidBody(); |
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} |
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|
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/** |
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* Freezes out all velocity, angular velocity, forces and torques |
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* on this StuntDouble. Also computes the number of frozen degrees |
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* of freedom. |
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* @return the total number of frozen degrees of freedom |
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*/ |
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int freeze() { |
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|
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int fdf = 3; |
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|
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setVel(V3Zero); |
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setFrc(V3Zero); |
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if (isDirectional()){ |
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setJ(V3Zero); |
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setTrq(V3Zero); |
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if (isLinear()) |
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fdf +=2; |
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else |
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fdf +=3; |
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} |
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return fdf; |
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} |
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|
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/** |
