TimeStep (dyn4j 4.0.0 API)

Object
- TimeStep

Direct Known Subclasses:

Step
```
public class TimeStep
extends Object
```
Class encapsulating the timestep information.
A time step represents the elapsed time since the last update.

Since:

1.0.0

Version:

4.0.0

Author:

William Bittle

Constructor Summary

Constructors
Constructor Description

TimeStep(double dt)
Default constructor.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`double`	`getDeltaTime()`	Returns the elapsed time since the last time step in seconds.
`double`	`getDeltaTimeRatio()`	Returns the ratio of the last elapsed time to the current elapsed time.
`double`	`getInverseDeltaTime()`	Returns the inverse of the elapsed time (in seconds) since the last time step.
`double`	`getPreviousInverseDeltaTime()`	Returns the previous frame's inverse elapsed time (in seconds).
`double`	`getPrevousDeltaTime()`	Returns the previous frame's elapsed time in seconds.
`String`	`toString()`
`void`	`update(double dt)`	Updates the current `TimeStep` using the new elapsed time.

Methods inherited from class Object
equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - TimeStep
```
public TimeStep(double dt)
```
    Default constructor.
    
    Parameters:
    
    dt - the initial delta time in seconds; must be positive or zero
- Method Detail
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object
  - update
```
public void update(double dt)
```
    Updates the current TimeStep using the new elapsed time.
    
    Parameters:
    
    dt - in delta time in seconds; must be positive or zero
  - getDeltaTime
```
public double getDeltaTime()
```
    Returns the elapsed time since the last time step in seconds.
    
    Returns:
    
    double
  - getInverseDeltaTime
```
public double getInverseDeltaTime()
```
    Returns the inverse of the elapsed time (in seconds) since the last time step.
    
    Returns:
    
    double
  - getDeltaTimeRatio
```
public double getDeltaTimeRatio()
```
    Returns the ratio of the last elapsed time to the current elapsed time.
    This is used to cope with a variable time step.
    
    Returns:
    
    double
  - getPrevousDeltaTime
```
public double getPrevousDeltaTime()
```
    Returns the previous frame's elapsed time in seconds.
    
    Returns:
    
    double
  - getPreviousInverseDeltaTime
```
public double getPreviousInverseDeltaTime()
```
    Returns the previous frame's inverse elapsed time (in seconds).
    
    Returns:
    
    double