import { Texture } from '@pixi/core' ; import { Particle } from '../Particle' ; import { IEmitterBehavior , BehaviorOrder } from './Behaviors' ; import { GetTextureFromString } from '../ParticleUtils' ; import { BehaviorEditorConfig } from './editor/Types' ; /**
 * A Texture behavior that assigns a texture to each particle from its list, in order, before looping around to the first
 * texture again. String values will be converted to textures with  ParticleUtils . GetTextureFromString .
 *
 * Example config:
 * ```javascript
 * {
 *     type: 'textureOrdered',
 *     config: {
 *         textures: ["myTex1Id", "myTex2Id", "myTex3Id", "myTex4Id"],
 *     }
 * }
 * ```
  export class OrderedTextureBehavior implements IEmitterBehavior { public static type = 'textureOrdered' ; public static editorConfig : BehaviorEditorConfig = null ; public order = BehaviorOrder . Normal ; private textures : Texture [ ] ; private index : number ; constructor ( config ) { this . index = 0 ; this . textures = config . textures . map ( ( tex ) => ( typeof tex === 'string' ? GetTextureFromString ( tex ) : tex ) ) ; } initParticles ( first ) { let next = first ; while ( next ) { next . texture = this . textures [ this . index ] ; if ( ++ this . index >= this . textures . length ) { this . index = 0 ; } next = next . next ; } } }