frog.demo
Class UFOSprite

java.lang.Object
  frog.demo.UFOSprite

All Implemented Interfaces:

Sprite

public class UFOSprite
extends Object
implements Sprite

Represents a single UFO in the DemoGame. A UFOSprite is responsible for a UFO's behavior which includes swooping in from the top of the screen, moving towards a CowSprite. If it abducts a CowSprite, it heads back to the top of the screen and disappears.

UFOSprites are responsible for keeping track of a UFO's sounds, images, and states. UFOSprites come in five different types: circle, triangle, square, X, and Z. UFOSprites can be destroyed by a Player making a matching gesture and will reward that Player with 100 points.

Author:

Team Better Recognize

Field Summary

static int	ABDUCTION_TIME The amount of time it takes for a cow to be abducted given HOVER_HEIGHT and CowSprite.ABDUCT_SPEED.
static int	EXPLODING_TIME Frames for UFO exploding
static float	HOVER_HEIGHT Height at which the UFO will hover over a cow target
static float	SPEEDX UFO movement speed
static float	SPEEDY UFO movement speed
int	type Type of gesture shown on this UFO
static int	UFO_SCORE Points killing a UFO is worth

Constructor Summary

UFOSprite(DemoGame game, int type)
Constructs a new UFOSprite.

Method Summary

void	draw(Graphics g) Draws this sprite to the given Graphics context.
boolean	equals(Object other)
void	giveTarget(CowSprite cow) Gives a new target CowSprite for the UFO to approach.
int	kill() Disables this sprite's draw method.
void	setKillColor(Color color)
void	update() Causes this sprite update its current state.

Methods inherited from class java.lang.Object

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

Field Detail

UFO_SCORE

public static final int UFO_SCORE

Points killing a UFO is worth

See Also:

Constant Field Values

SPEEDX

public static final float SPEEDX

UFO movement speed

See Also:

Constant Field Values

SPEEDY

public static final float SPEEDY

UFO movement speed

See Also:

Constant Field Values

HOVER_HEIGHT

public static final float HOVER_HEIGHT

Height at which the UFO will hover over a cow target

See Also:

Constant Field Values

ABDUCTION_TIME

public static final int ABDUCTION_TIME

The amount of time it takes for a cow to be abducted given HOVER_HEIGHT and CowSprite.ABDUCT_SPEED.

See Also:

Constant Field Values

EXPLODING_TIME

public static final int EXPLODING_TIME

Frames for UFO exploding

See Also:

Constant Field Values

type

public final int type

Type of gesture shown on this UFO

Constructor Detail

UFOSprite

public UFOSprite(DemoGame game,
                 int type)

Constructs a new UFOSprite.

Parameters:

game - the DemoGame this UFOSprite is a part of.

type - the gesture type of this UFO.

Method Detail

draw

public void draw(Graphics g)

Description copied from interface: Sprite

Draws this sprite to the given Graphics context.

Specified by:

draw in interface Sprite

Parameters:

g - the Graphics context this sprite should draw itself to.

equals

public boolean equals(Object other)

Overrides:

equals in class Object

giveTarget

public void giveTarget(CowSprite cow)

Gives a new target CowSprite for the UFO to approach.

Parameters:

cow - a CowSprite to chase after.

kill

public int kill()

Description copied from interface: Sprite

Disables this sprite's draw method. Performs any necessary clean up and displays any effects that need to appear upon this object's death. Some sprites may be worth points when they are killed. If this is the case, kill will return those points as an integer.

Specified by:

kill in interface Sprite

Returns:

number of points this sprite is worth, if any.

setKillColor

public void setKillColor(Color color)

update

public void update()

Description copied from interface: Sprite

Causes this sprite update its current state. This may be moving by one step or adjusting it's current display picture.

Specified by:

update in interface Sprite