Changeset 2303 for code/branches/physics/src/orxonox/objects/worldentities/collisionshapes

• Added support for attaching physical WorldEntities to each other. Currently you can only add static objects to kinematic/dynamic/static other objects. Future plans involve attaching kinematic objects to static/kinematic ones. All other combinations don't make sense at all.
• Added CollisionShape, SphereCollisionShape and CompoundCollisionShape

Usage for collision shapes (example):

<LinearEntity collisionType="kinematic">

<attached>

<Model position="0,0,0" scale=10 mesh="ast1.mesh" />
<StaticEntity position="0,10,0" collisionType="static"> # Everything else than "static" fails!

<collisionShapes>

<SphereCollisionShape radius=40 position="10,10,-10"/>
<CompoundCollisionShape position="4,4,4"> # You can also make compound shapes directly

<SphereCollisionShape radius=10/>

</CompoundCollisionShape>

</collisionShapes>

</StaticEntity>

</attached>

</LinearEntity>