Class Defender

java.lang.Object

Defender

public class Defender
extends java.lang.Object

A Lunar lander that can fire lasers

Author:

Jim Skrentny modified, Tim Bahls

Constructor Summary

Constructors

Constructor and Description
Defender(int startX, int startY, java.lang.String imageName) Constructs a Defender at the given location with the given image

Method Summary

Modifier and Type	Method and Description
Laser	fireWeapon() Return the bullet this Defender is about to fire.
int	getHitPoints() Returns the number of hit points for this Defender.
java.lang.String	getImageName() Returns the filename of this Defender's image
int	getXPosition() Get the current x coordinate of the center of this Defender.
int	getYPosition() Get the current y coordinate of the center of this Defender.
boolean	isHitByLaser(Laser theLaser) Returns whether this Defender intersects this Laser
void	paint(java.awt.Graphics g) Paint this Defender onto the given Graphics object
void	recordHit() Updates the Object to record that it has been hit by a Laser.
boolean	removeMeFromGame() Returns true if this Defender is dead.
void	setHitPoints(int hitPoints) Set the number of hit points for this Defender.
void	setXPosition(int newXPosition) Sets the x position to the given position

Methods inherited from class java.lang.Object

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

Constructor Detail

Defender

public Defender(int startX,
                int startY,
                java.lang.String imageName)

Constructs a Defender at the given location with the given image

Parameters:

startX - the x position to start at

startY - the y position to start at

imageName - the filename for the image to use

Method Detail

setHitPoints

public void setHitPoints(int hitPoints)

Set the number of hit points for this Defender. Only changes hitPoints if positive.

Parameters:

hitPoints - The new number of hitPoints

getHitPoints

public int getHitPoints()

Returns the number of hit points for this Defender.

Returns:

The current number of hitPoints

setXPosition

public void setXPosition(int newXPosition)

Sets the x position to the given position

Parameters:

newXPosition - The x position of this Defender

fireWeapon

public Laser fireWeapon()

Return the bullet this Defender is about to fire.

Returns:

The bullet this Defender is about to fire.

getImageName

public java.lang.String getImageName()

Returns the filename of this Defender's image

Returns:

the filename of this Defender's image

getXPosition

public int getXPosition()

Get the current x coordinate of the center of this Defender.

Returns:

The current x coordinate of the center of this Defender.

getYPosition

public int getYPosition()

Get the current y coordinate of the center of this Defender.

Returns:

The current y coordinate of the center of this Defender.

isHitByLaser

public boolean isHitByLaser(Laser theLaser)

Returns whether this Defender intersects this Laser

Parameters:

theLaser - The laser to check position against.

Returns:

true if this Defender intersects this Laser

removeMeFromGame

public boolean removeMeFromGame()

Returns true if this Defender is dead.

Returns:

true if the Defender is dead

recordHit

public void recordHit()

Updates the Object to record that it has been hit by a Laser. This method is called every time the Defender is struck by a Laser.

paint

public void paint(java.awt.Graphics g)

Paint this Defender onto the given Graphics object

Parameters:

g - the Graphics object to draw onto