// Copyright (C) 2021 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only

import QtQuick
import QtQuick3D
import QtQuick3D.Particles3D

ParticleSystem3D {
    id: wanderSystem
    ParticleEmitter3D {
        id: wanderSpriteEmitter
        particle: wanderSpriteParticle
        position: wanderTarget.position
        emitRate: 100
        particleScale: 20
        particleScaleVariation: 5
        particleEndScale: 30
        particleEndScaleVariation: 10
        lifeSpanVariation: 1000

        SpriteParticle3D {
            id: wanderSpriteParticle
            sprite: spriteTexture
            particleScale: 0.2
            maxAmount: 600
            billboard: true
            fadeInEffect: Particle3D.FadeScale
            fadeInDuration: 100
            fadeOutEffect: Particle3D.FadeOpacity
            fadeOutDuration: 1500
            Texture {
                id: spriteTexture
            }
        }
    }

    Wander3D {
        uniquePace.z: 0.1
        uniquePace.y: 0.1
        uniquePace.x: 0.1
        uniqueAmount.z: 40
        uniqueAmount.y: 40
        uniqueAmount.x: 40
        uniqueAmountVariation: 1
        uniquePaceVariation: 1
        fadeInDuration: 3000
    }

    Node {
        id: wanderTarget
    }
}