* Creates a default tree trunk state with given radius and height and default 3D state. The id is incremented from
* a sequence.
*/
public TreeTrunkState createRandomTreeTrunkState(float radius, float height) {
int age = Randomizer.randomBetween(0, 100);
TreeTrunk3DStateFactory trunk3DStateFactory = new TreeTrunk3DStateFactory();
TreeTrunk3DState leaf3dState = trunk3DStateFactory.createRandomTreeTrunk3DState();
return new TreeTrunkState(TRUNK_COUNT++, age, radius, height, leaf3dState);
}