import { Particle } from '../Particle' ; import { BehaviorEditorConfig } from './editor/Types' ; /**
 * All behaviors instances must implement this interface, and the class must match the
 *  IEmitterBehaviorClass interface. All behaviors must have an order property and
 * `initParticles` method. Implementing the `updateParticle` or `recycleParticle` methods is optional.
  export interface IEmitterBehavior { /**
     * Order in which the behavior will be handled. Lower numbers are handled earlier, with an order of 0 getting
     * special treatment before the Emitter's transformation is applied.
     */ order : number ; param first initParticles ( first ) : void ; param particle param deltaSec updateParticle ? ( particle , deltaSec ) : void | boolean ; param particle param natural recycleParticle ? ( particle , natural ) : void ; } /**
 * All behavior classes must match this interface. The instances need to implement the  IEmitterBehavior interface.
  export interface IEmitterBehaviorClass { /**
     * The unique type name that the behavior is registered under.
     */ type : string ; /**
     * Configuration data for an editor to display this behavior. Does not need to exist in production code.
     */ editorConfig ? : BehaviorEditorConfig ; param config new ( config ) : IEmitterBehavior ; } /**
 * Standard behavior order values, specifying when/how they are used. Other numeric values can be used,
 * but only the Spawn value will be handled in a special way. All other values will be sorted numerically.
 * Behaviors with the same value will not be given any specific sort order, as they are assumed to not
 * interfere with each other.
 */ export enum BehaviorOrder { /**
     * Spawn - initial placement and/or rotation. This happens before rotation/translation due to
     * emitter rotation/position is applied.
     */ Spawn = 0 , /**
     * Normal priority, for things that don't matter when they are applied.
     */ Normal = 2 , /**
     * Delayed priority, for things that need to read other values in order to act correctly.
     */ Late = 5 }