public static PerformanceCounter getPerformanceCounter() { return PERFORMANCE_COUNTER; }
public static PerformanceCounter getStepPerformanceCounter() { return STEP_PERFORMANCE_COUNTER; }
public static PerformanceCounter getGravityProjectionPerformanceCounter() { return GRAVITY_PROJECTION_PERFORMANCE_COUNTER; }
public static void disposeCounter(PerformanceCounter counter) { counters.remove(counter.name); }