EmitterShape class abstract Particles

Decides where a freshly spawned particle starts and which way it initially heads.

sample writes the spawn position into the storage's pos* columns and a unit emission direction into the vel* columns at index; the owning system scales that direction by the start speed to produce the launch velocity. Positions and directions are in the emitter's local space.

Shapes draw their randomness from ParticleStorage.randomFor with salts in the 20+ range, kept disjoint from the salts the system uses for its other spawn properties so values do not correlate.

Implementers

• BoxEmitterShape
• ConeEmitterShape
• PointEmitterShape
• SphereEmitterShape

Constructors

EmitterShape()

Creates an emitter shape.

const

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

sample(ParticleStorage storage, int index) → void

Writes the spawn position and unit emission direction for particle index into storage.

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited