Game Physics Engine Development, 2nd Edition

244 Chapter 11 The Rigid-Body Physics Engine

Our buoyancy force generator can be updated to take an attachment point;

otherwise, it is as befo re:

Excerpt from file include/cyclone/fgen.h

/**

* A force generator to apply a buoyant force to a rigid body.

*/

class Buoyancy : public ForceGenerator

{

/**

* The maximum submersion depth of the object before

* it generates its maximum buoyancy force.

*/

real maxDepth;

/**

* The volume of the object.

*/

real volume;

/**

* The height of the water plane above y=0. The plane will be

* parallel to the XZ plane.

*/

real waterHeight;

/**

* The density of the liquid. Pure water has a density of

* 1000 kg per cubic meter.

*/

real liquidDensity ...