SpaceInvaders
Class Score

java.lang.Object
  |
  +--SpaceInvaders.Score

public class Score

extends java.lang.Object

Maintains and displays the game score.

Version:

1.0, 30 October 2001

Author:

Susan B. Cavanaugh

Field Summary

private int	oldScore the previous game score
private Point	screenPos screen position of score display
private int	theScore the current game's score

Constructor Summary

Score()
Default constructor initializes score to zero and sets the screen position of score display to (10, 10).

Score(int startingScore, Point onScreen)
Accepts score and screen position.

Method Summary

void	draw(java.awt.Graphics g) Draws the score on the screen.
void	increment() Increments the score by 1, the default increment.
void	increment(int i) Increments the score by a specified amount.

Methods inherited from class java.lang.Object

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

Field Detail

theScore

private int theScore

the current game's score

oldScore

private int oldScore

the previous game score

screenPos

private Point screenPos

screen position of score display

Constructor Detail

Score

public Score()

Default constructor initializes score to zero and sets the screen position of score display to (10, 10).

Score

public Score(int startingScore,
             Point onScreen)

Accepts score and screen position.

Parameters:

startingScore - the score setting

onScreen - the screen position of score display

Method Detail

draw

public void draw(java.awt.Graphics g)

Draws the score on the screen. To eliminate flicker, the old score is overwritten in background color, then the new one is drawn in white.

Parameters:

g - the Graphics context

increment

public void increment()

Increments the score by 1, the default increment.

increment

public void increment(int i)

Increments the score by a specified amount.

Parameters:

i - score increment