Class Chaser

java.lang.Object

core.GameObject

core.Character

entities.enemies.Enemy

entities.enemies.Chaser

All Implemented Interfaces:

Hittable

public class Chaser
extends Enemy

Represents a Chaser enemy in the game. The Chaser moves toward the player along one axis at a time, and charges at the player when aligned horizontally or vertically. Upon death, it spawns a coin and four bullets in four directions.

Field Summary

Fields

Modifier and Type	Field	Description
private static final double	baseSpeed	Normal movement speed in pixels per second.
private static final double	chargeSpeed	Charging speed when aligned with the player.
private static final javafx.scene.image.Image	CHASER_SPRITE	Static image used to render the Chaser sprite.
private Player	player	Reference to the player object.
private double	vx	Horizontal velocity component.
private double	vy	Vertical velocity component.

Fields inherited from class entities.enemies.Enemy

room

Fields inherited from class core.Character

diameter, isAlive

Fields inherited from class core.GameObject

x, y

Constructor Summary

Constructors

Constructor	Description
Chaser(double x, double y, Room room, Player player, int hp, int power, double diameter)	Constructs a new Chaser enemy.

Method Summary

Modifier and Type	Method	Description
Player	getPlayer()	Returns the player object that the Chaser is targeting.
void	onDead()	Called when the Chaser dies.
void	render(javafx.scene.canvas.GraphicsContext gc)	Renders the Chaser, including its sprite and damage flash.
void	setPlayer(Player player)	Sets the player object that the Chaser targets.
void	update(double dt)	Updates the Chaser's position and damage flash each frame.

Methods inherited from class entities.enemies.Enemy

getDamageFlash, getRoom, isAlive, isDead, onHit, setDamageFlash, setRoom

Methods inherited from class core.Character

getDiameter, getHitbox, getHp, getMaxHp, getPower, setAlive, setDiameter, setHp, setMaxHp, setPower

Methods inherited from class core.GameObject

getX, getY, setX, setY

Methods inherited from class java.lang.Object

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

Methods inherited from interface core.Hittable

getDiameter, getHitbox

Field Details

baseSpeed

private static final double baseSpeed

Normal movement speed in pixels per second.

See Also:

• Constant Field Values

chargeSpeed

private static final double chargeSpeed

Charging speed when aligned with the player.

See Also:

• Constant Field Values

vx

private double vx

Horizontal velocity component.

vy

private double vy

Vertical velocity component.

player

private Player player

Reference to the player object.

CHASER_SPRITE

private static final javafx.scene.image.Image CHASER_SPRITE

Static image used to render the Chaser sprite.

Constructor Details

Chaser

public Chaser(double x,
 double y,
 Room room,
 Player player,
 int hp,
 int power,
 double diameter)

Constructs a new Chaser enemy.

Parameters:

x - Initial X position.

y - Initial Y position.

room - Room the enemy is in.

player - Reference to the player.

hp - Health points of the Chaser.

power - Attack power of the Chaser.

diameter - Diameter of the Chaser for hitbox and rendering.

Method Details

onDead

public void onDead()

Called when the Chaser dies. Spawns bullets in four directions and drops a coin.

Specified by:

onDead in interface Hittable

Overrides:

onDead in class Enemy

update

public void update(double dt)

Updates the Chaser's position and damage flash each frame. Moves toward the player along one axis and charges if aligned.

Specified by:

update in class Enemy

Parameters:

dt - Delta time since last update (seconds).

render

public void render(javafx.scene.canvas.GraphicsContext gc)

Renders the Chaser, including its sprite and damage flash.

Specified by:

render in class Enemy

Parameters:

gc - GraphicsContext used for drawing.

getPlayer

public Player getPlayer()

Returns the player object that the Chaser is targeting.

Returns:

Player object.

setPlayer

public void setPlayer(Player player)

Sets the player object that the Chaser targets.

Parameters:

player - Player object.