Class ShapeParticle

java.lang.Object

de.gurkenlabs.litiengine.graphics.emitters.particles.Particle

de.gurkenlabs.litiengine.graphics.emitters.particles.ShapeParticle

All Implemented Interfaces:

ITimeToLive

Direct Known Subclasses:

EllipseParticle, LineParticle, PolygonParticle, RectangleParticle

public abstract class ShapeParticle
extends Particle

Represents a particle with a specific shape.

This abstract class defines the behavior and rendering logic for particles that are represented by geometric shapes. Subclasses must implement the getShape(Point2D) method to define the specific shape of the particle.

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	ShapeParticle(float width, float height)	Creates a new shape particle with the specified dimensions.

Method Summary

Modifier and Type	Method	Description
Rectangle2D	getBoundingBox(Point2D origin)	Retrieves the bounding box of the particle.
protected abstract Shape	getShape(Point2D emitterOrigin)	Retrieves the shape of the particle based on the emitter's origin.
void	render(Graphics2D g, Point2D emitterOrigin)	Renders the particle on the specified graphics context.

Methods inherited from class Particle

getAbsoluteLocation, getAbsoluteX, getAbsoluteY, getAccelerationX, getAccelerationY, getAliveTime, getAngle, getCollisionType, getColor, getCustomRenderType, getDeltaAngle, getDeltaHeight, getDeltaWidth, getHeight, getOpacity, getOutlineThickness, getRenderLocation, getTimeToLive, getVelocityX, getVelocityY, getWidth, getX, getY, hasRayCastCollision, init, isAntiAliased, isContinuousCollisionEnabled, isFading, isFadingOnCollision, isOutlineOnly, isStoppingOnCollision, setAccelerationX, setAccelerationY, setAngle, setAntiAliasing, setCollisionType, setColor, setContinuousCollision, setCustomRenderType, setDeltaAngle, setDeltaHeight, setDeltaWidth, setFade, setFadeOnCollision, setHeight, setOutlineOnly, setOutlineThickness, setStopOnCollision, setTimeToLive, setVelocityX, setVelocityY, setWidth, setX, setY, timeToLiveReached, update, usesCustomRenderType

Methods inherited from class Object

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

Constructor Details

ShapeParticle

protected ShapeParticle(float width,
 float height)

Creates a new shape particle with the specified dimensions.

Parameters:

width - the width of the particle

height - the height of the particle

Method Details

getShape

protected abstract Shape getShape(Point2D emitterOrigin)

Retrieves the shape of the particle based on the emitter's origin.

This method must be implemented by subclasses to define the specific shape of the particle.

Parameters:

emitterOrigin - the origin point of the emitter

Returns:

the shape of the particle

getBoundingBox

public Rectangle2D getBoundingBox(Point2D origin)

Retrieves the bounding box of the particle.

The bounding box is calculated based on the particle's shape and the specified origin point.

Overrides:

getBoundingBox in class Particle

Parameters:

origin - the origin point of the emitter

Returns:

the bounding box of the particle as a Rectangle2D

render

public void render(Graphics2D g,
 Point2D emitterOrigin)

Renders the particle on the specified graphics context.

The rendering behavior depends on whether the particle is outline-only or a specific subclass such as LineParticle. The particle's color, opacity, and anti-aliasing settings are applied during rendering.

Specified by:

render in class Particle

Parameters:

g - the graphics context to render on

emitterOrigin - the origin point of the emitter

classgraphicsapijava