tipgame.sprite
Class BlurSprite

java.lang.Object
  tipgame.Sprite
      tipgame.sprite.BlurSprite

public class BlurSprite
extends Sprite

This class provides a mechanism for showing the path of fast moving Sprites in which it is useful to draw the position of Sprites in intermediate frames between screen refresh. The Sprites are drawn with increasing opacity with time. The opacity works only for single color Sprites. In order to make an existing Sprite display motion blur, simply extend this class instead of the Sprite class.

Author:

Jam Jenkins

Field Summary

private static int	DEFAULT_FRAMES the default number of previous frames to store
private static int	DEFAULT_PER_FRAME the default number of Shapes to store per frame
private int	drawNumber used to indicate how many Shapes have been drawn
private int	numFrames the number of Shapes to store per frame
private int	numPerFrame the number of previous frames to store
private java.util.LinkedList<java.awt.Shape>	previous the previous Sprites as Shapes

Fields inherited from class tipgame.Sprite

color, tracker

Constructor Summary

BlurSprite()

Method Summary

void	paint(java.awt.Graphics2D brush) paints the current Sprite after painting the Sprite's previous locations in increasing opacity
void	setEnabled(boolean enabled) enables the sprite blur
void	setHistory(int frames, int perFrame) updates the number of previous frames to store and how many Shapes to store per frame
void	update(double time) adds to the list of previous Shapes

Methods inherited from class tipgame.Sprite

flipAlongHorizontalAxis, flipAlongVerticalAxis, getBounds2D, getColor, getLocation, getNormalVector, getRotation, getScale, getShape, getTracker, getUseBoundingBox, intersects, isDestroyed, isEnabled, isVisible, kill, normalize, paintInternal, rotate, scale, setColor, setLocation, setLocation, setRotation, setScale, setShape, setTracker, setUseBoundingBox, setVisible, translate, updateInternal

Methods inherited from class java.lang.Object

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

Field Detail

previous

private java.util.LinkedList<java.awt.Shape> previous

the previous Sprites as Shapes

DEFAULT_PER_FRAME

private static int DEFAULT_PER_FRAME

the default number of Shapes to store per frame

DEFAULT_FRAMES

private static int DEFAULT_FRAMES

the default number of previous frames to store

numFrames

private int numFrames

the number of Shapes to store per frame

numPerFrame

private int numPerFrame

the number of previous frames to store

drawNumber

private int drawNumber

used to indicate how many Shapes have been drawn

Constructor Detail

BlurSprite

public BlurSprite()

Method Detail

setEnabled

public void setEnabled(boolean enabled)

enables the sprite blur

Overrides:

setEnabled in class Sprite

Parameters:

enabled - true indicates the Sprite can display and update, false otherwise

See Also:

Sprite.setEnabled(boolean)

setHistory

public void setHistory(int frames,
                       int perFrame)

updates the number of previous frames to store and how many Shapes to store per frame

Parameters:

frames - the number of previous frames to store

perFrame - the number of Shapes per frame

update

public void update(double time)

adds to the list of previous Shapes

Overrides:

update in class Sprite

See Also:

tipgame.Sprite#update()

paint

public void paint(java.awt.Graphics2D brush)

paints the current Sprite after painting the Sprite's previous locations in increasing opacity

Overrides:

paint in class Sprite

Parameters:

brush - the Graphics used to draw the shape

See Also:

Sprite.paint(java.awt.Graphics2D)