game_LT2
Class ProjectileSprite

java.lang.Object
  extended by game_LT2.ProjectileSprite
All Implemented Interfaces:
Sprite

public class ProjectileSprite
extends java.lang.Object
implements Sprite

This class encapsulates an on-screen sprite that represents a projectile in our game. A projectile is either live or dead. Only live projectiles are shown on-screen. It has a linear trajectory that is represented by an x and y displacement per frame.

Author:
mb

Constructor Summary
ProjectileSprite(java.awt.Dimension dimensionOfDrawingRegion, java.awt.Point initialPosition, int xDisplacement, int yDisplacement)
          Constructs a sprite located at the 0,0 position
 
Method Summary
 int getCurrentX()
          Accessor for this sprite's current x position
 int getCurrentY()
          Accessor for this sprite's current y position
 void move()
          Mutate the position of this projectile.
 void setAnchor(int x, int y)
          Mutates this sprite's anchor position
 void specifyDrawing(java.awt.Graphics2D g)
          This method takes the passed Graphics2D object and specifies how this sprite should be drawn on it.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

ProjectileSprite

public ProjectileSprite(java.awt.Dimension dimensionOfDrawingRegion,
                        java.awt.Point initialPosition,
                        int xDisplacement,
                        int yDisplacement)
Constructs a sprite located at the 0,0 position

Parameters:
dimensionOfDrawingRegion -
Method Detail

setAnchor

public void setAnchor(int x,
                      int y)
Mutates this sprite's anchor position

Parameters:
x -
y -

getCurrentX

public int getCurrentX()
Accessor for this sprite's current x position

Returns:
as specified above

getCurrentY

public int getCurrentY()
Accessor for this sprite's current y position

Returns:
as specified above

move

public void move()
Mutate the position of this projectile. The projectile will die off after it has been drawn a certain number of frames (the lifetime, given in terms of number of frames, is given by a class attribute).


specifyDrawing

public void specifyDrawing(java.awt.Graphics2D g)
This method takes the passed Graphics2D object and specifies how this sprite should be drawn on it.

Specified by:
specifyDrawing in interface Sprite