tipgame.tracker
Class CompositeTracker

java.lang.Object
  tipgame.tracker.CompositeTracker

All Implemented Interfaces:

Tracker

public abstract class CompositeTracker
extends java.lang.Object
implements Tracker

Field Summary

private java.awt.geom.Point2D.Double	location
private CompositeTracker	next
private CompositeTracker	previous
private double	rotationAddition
private double	scaleFactor

Constructor Summary

CompositeTracker()

Method Summary

void	addCompositeTracker(CompositeTracker tracker)
void	advanceCompositeTime(double time)
void	advanceTime(double time) called every time time is advanced.
double	getCompositeRotationAddition()
double	getCompositeScaleFactor()
java.awt.geom.Point2D.Double	getLocation() determines the absolute location (i.e.
double	getRotationAddition() determines the relative rotation.
double	getScaleFactor() determines the relative scaling factor.
java.awt.geom.Point2D.Double	getTranslation()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

next

private CompositeTracker next

previous

private CompositeTracker previous

location

private java.awt.geom.Point2D.Double location

scaleFactor

private double scaleFactor

rotationAddition

private double rotationAddition

Constructor Detail

CompositeTracker

public CompositeTracker()

Method Detail

getTranslation

public java.awt.geom.Point2D.Double getTranslation()

getCompositeScaleFactor

public double getCompositeScaleFactor()

getCompositeRotationAddition

public double getCompositeRotationAddition()

advanceCompositeTime

public void advanceCompositeTime(double time)

addCompositeTracker

public final void addCompositeTracker(CompositeTracker tracker)
                               throws java.lang.Exception

Throws:

java.lang.Exception

getLocation

public final java.awt.geom.Point2D.Double getLocation()

Description copied from interface: Tracker

determines the absolute location (i.e. not necessarily relative to the Sprite's last location)

Specified by:

getLocation in interface Tracker

Returns:

the absolute location of the Sprite

getScaleFactor

public final double getScaleFactor()

Description copied from interface: Tracker

determines the relative scaling factor. This method will take the current size of the Sprite and scale it by the factor returned

Specified by:

getScaleFactor in interface Tracker

Returns:

the multiplicative scaling factor

getRotationAddition

public final double getRotationAddition()

Description copied from interface: Tracker

determines the relative rotation. This method will take the current orientation and rotate it by the value returned.

Specified by:

getRotationAddition in interface Tracker

Returns:

the amount to rotate in radians

advanceTime

public final void advanceTime(double time)

Description copied from interface: Tracker

called every time time is advanced. The amount of time which has passed since the last call. This method must also accept negative time intervals for reversing time. The magnitude of the negative time interval will not exceed the magnitude of the last positive time interval. Also, the keyboard and mouse inputs will remain constant when the interval is negative.

Specified by:

advanceTime in interface Tracker

Parameters:

time - the time in seconds since the last frame