* modules/Location.h, modules/Location.cpp: Add members to store
box diagonal size and bounding radius.
* tests/Locationtest.cpp: Test that the diagonal size and bounding
radius are updated correctly.
* modules/Location.cpp, modules/Location.h:
Add const accessors for location data, in preparation for
adding cached collision data which must be updated every
time data is modified.
* physics/Collision.cpp, rulesets/Character.cpp, rulesets/Entity.cpp,
rulesets/Entity.h, rulesets/MemMap.cpp, rulesets/Movement.cpp,
rulesets/Pedestrian.cpp, rulesets/Plant.cpp,
rulesets/Py_Location.cpp, rulesets/Thing.cpp, rulesets/World.cpp,
server/Account.cpp, server/EntityFactory.cpp, server/Persistor.cpp,
server/Persistor_impl.h, server/Restorer_impl.h,
server/WorldRouter.cpp, tests/Locationtest.cpp:
Use the const accessors whenver reading data from Location.
* physics/Vector3D.h, physics/Vector3D.cpp, modules/Location.h,
modules/Location.cpp: Convert to using WFMath::Point instead of
WFMath::Vector for position.
* physics/Collision.h, physics/Collision.cpp: Update collision code
to use new pos type.
* rulesets/Py_Point3D.h, rulesets/Py_Point3D.cpp: New python
wrappers for WFMath::Point.
* rulesets/Py_Location.cpp, rulesets/Py_Vector3D.cpp,
rulesets/Python_API.cpp:
Update python wrappers to take into account new pos type.
Ensure that only apropriate functionality is available for
point and vector.
* rulesets/Character.cpp, rulesets/Entity.cpp, rulesets/Entity.h,
rulesets/Line.cpp, rulesets/Movement.cpp, rulesets/Movement.h,
rulesets/Pedestrian.cpp, rulesets/Pedestrian.h,
rulesets/Plant.cpp, rulesets/Thing.cpp, rulesets/World.cpp,
server/EntityFactory.cpp, server/WorldRouter.cpp,
server/WorldRouter.h: Update the rest of the code for new pos
type, converting all places where entity parenting is changed
to use WFMath toParentCoords() and toLocalCoords() methods,
so that orientation is handled correctly.
* tests/transformtest.cpp: New test to ensure that toParentCoords()
and toLocalCoords() perform as expected.
* tests/Creatortest.cpp, tests/Locationtest.cpp, tests/Worldtest.cpp,
tests/collisiontest.cpp, tests/emergencetest.cpp:
Update the rest of the tests.
