Releases internal resources or subscriptions.
Tells If the emitter has finished emitting particles. If lifetime is -1, this will always be false
If particles should be emitted during update() calls. Setting this to false stops new particles from being created, but allows existing ones to die out.
Callback is invoked when emitter animation completes. This is supported only when emitter has valid lifetime, If lifetime is -1, callback won't be invoked.
Update loop
Scalar representing the delta time factor (value between 0 to 1)
Changes the spawn position of the emitter. Changing spawn position will restart the emitter
The new x value of the spawn position for the emitter.
The new y value of the spawn position for the emitter.
Sets the rotation of the emitter to a new value. This rotates the spawn position in addition to particle direction.
Particle Emitter Implementation is based on pixi-particles https://github.com/pixijs-userland/particle-emitter