Module technology.sola.engine

Package technology.sola.engine.physics.component.particle.emitter

Class TrapezoidEmitterShape

java.lang.Object

technology.sola.engine.physics.component.particle.emitter.ParticleEmitterShape

technology.sola.engine.physics.component.particle.emitter.TrapezoidEmitterShape

@NullMarked
public class TrapezoidEmitterShape
extends ParticleEmitterShape

TrapezoidEmitterShape is a ParticleEmitterShape that emits particles in the shape of a trapezoid.

Constructor Summary

Constructors

Constructor	Description
TrapezoidEmitterShape(Vector2D direction, float baseWidth, float height, float otherBaseWidth)	Creates a TrapezoidEmitterShape.

Method Summary

Modifier and Type	Method	Description
protected Vector2D	getCenter()
EmissionDetails	nextEmission()	Calculates the position and direction details for the next particle emitted.
protected Vector2D	randomPointInShape()
protected Vector2D	randomPointOnPerimeter()
TrapezoidEmitterShape	setEmitFromBase(boolean emitFromBase)	Sets whether particles should be emitted from the first base of the trapezoid.

Methods inherited from class technology.sola.engine.physics.component.particle.emitter.ParticleEmitterShape

isEmitFromShell, isRandomDirection, setEmitFromShell, setRandomDirection

Methods inherited from class java.lang.Object

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

Constructor Details

TrapezoidEmitterShape

public TrapezoidEmitterShape(Vector2D direction,
 float baseWidth,
 float height,
 float otherBaseWidth)

Creates a TrapezoidEmitterShape. The direction is the vector going from the first base of the trapezoid towards the other base. The height is the distance between the two bases.

 Ex: direction (0, -1) + baseWidth 2 + height 5 + otherBaseWidth 8
 ________
 \      /
  \    /
   \__/
 

Parameters:

direction - the direction of the trapezoid

baseWidth - the width of the first base of the trapezoid

height - the height of the trapezoid

otherBaseWidth - the width of the second base of the trapezoid

Method Details

nextEmission

public EmissionDetails nextEmission()

Description copied from class: ParticleEmitterShape

Calculates the position and direction details for the next particle emitted.

Overrides:

nextEmission in class ParticleEmitterShape

Returns:

the EmissionDetails for the next particle emitted.

setEmitFromBase

public TrapezoidEmitterShape setEmitFromBase(boolean emitFromBase)

Sets whether particles should be emitted from the first base of the trapezoid.

Parameters:

emitFromBase - whether particles should be emitted from the first base of the trapezoid

Returns:

this

getCenter

protected Vector2D getCenter()

Specified by:

getCenter in class ParticleEmitterShape

Returns:

the center point of the shape

randomPointInShape

protected Vector2D randomPointInShape()

Specified by:

randomPointInShape in class ParticleEmitterShape

Returns:

a random point inside the shape

randomPointOnPerimeter

protected Vector2D randomPointOnPerimeter()

Specified by:

randomPointOnPerimeter in class ParticleEmitterShape

Returns:

a random point on the perimeter of the shape