Class MovingStars

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class MovingStars

extends Object

MovingStars - Displays stars that move at random speeds.

This class generates a variable number of stars, puts them at random locations, with random colors, and moves them at random speeds.

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color

height

i

length

maxXMove

maxYMove

r

For generating random Numbers.

width

x

xMove

y

yMove

MovingStars(int, int, int, int, int)

Creates All the data to draw MovingStars.

abs(int)

Returns the distance from zero.

genStart()

Generates the stars starting location, everything is random.

paint(Graphics)

Paints the stars.

update()

Updates the stars location.

x

 private int x[]

y

 private int y[]

xMove

 private int xMove[]

yMove

 private int yMove[]

color

 private Color color[]

height

 private int height

width

 private int width

maxXMove

 private int maxXMove

maxYMove

 private int maxYMove

length

 private int length

r

 Random r

For generating random Numbers.

i

 int i

MovingStars

 MovingStars(int width,
             int height,
             int maxX,
             int maxY,
             int count)

Creates All the data to draw MovingStars.

Parameters:

width - The width of the screen.

height - The height of the screen.

maxX - Max speed the stars move in the X direction.

maxY - Max speed the stars move in the Y direction.

count - The number of stars to display.

update

 public void update()

Updates the stars location. It will also generate a new star should the current one be outside of visual range.

paint

 public void paint(Graphics g)

Paints the stars.

Parameters:

g - Where to draw the stars.

genStart

 private void genStart()

Generates the stars starting location, everything is random.

abs

 private int abs(int i)

Returns the distance from zero.

Parameters:

i - The number to check.

Returns:

s an int of the distance from zero.