= TRACKMANAGER =
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The !TrackManager handles the flow of the Players through the game.

The !TrackManager works as followed:

  * Initialize it, by setting up the Graph. You can do this by using the following Commands.
   * workOn(): changes the ID that will be altered through the changes.
   * setCurveType(): lets you set the !CurveType of the Curve we are Working on. (default is !BezierCurve, set this as early as possible, for his uses resources).
   * setDuration(): sets the length of the current path in seconds.
   * addPoint(): adds a point to the Curve.
   * addHotPoint(): adds save/splitpoint.
   * fork(): adds some interessting non-linear movments through the level (fork will force addHotPoint if not done then).
   * condition(): decides under what condition a certain Path will be chosen.
   * join(): joins some tracks together again. Join will set the localTime to the longest time a Path has to get to this Point)
   * setSavePoint(): Sets a !HotPoint into a savePoint. A Savepoint can be used as a rollbackpoint if a Player gets shot.
!HotPoints and Joins are at the beginning of a !TrackElement.
!SavePoints and Forks are at the end of a !TrackElement.
Look out: SAVEPOINTS CAN NOT BE FORKS (but joins), because the condition is really hard to guess if you do not give some impuls.
  * Runtime knows the following:
   * calcPos(): returns the current position on the track
   * calcDir(): returns the current Direction the track is flying on.
   * tick(): makes a Step on the Path. increases localTime by dt.
   * choosePath(): a Function that decides which Path we should follow.
!TrackManager can be handled as a !StateMachine.
  * Names:
   * !TrackManager: handles Tracks
   * Track: The Track that the ship can follow
   * Path: one way through the Level, that is dependent on conditionals.
   * Conditional: A decition making device, that chooses betwen different TrackElements for the Path.
   * !TrackElement: A Part of A whole Track