// 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: lightRain
    y: 2000
    ParticleEmitter3D {
        id: lightRainEmitter
        emitRate: 50
        lifeSpan: 500
        particle: lightRainParticle
        particleScale: 0.75
        particleScaleVariation: 0.25
        velocity: lightRainDirection
        shape: lightRainShape
        depthBias: -200

        VectorDirection3D {
            id: lightRainDirection
            direction.y: -(lightRain.y * 2)
        }

        SpriteParticle3D {
            id: lightRainParticle
            color: "#90e6f4ff"
            maxAmount: 100
            particleScale: 85
            fadeInDuration: 0
            fadeOutDuration: 10
            fadeOutEffect: Particle3D.FadeOpacity
            sortMode: Particle3D.SortDistance
            sprite: lightRainTexture
            offsetY: particleScale / 2
            billboard: true

            Texture {
                id: lightRainTexture
                source: "rain.png"
            }

            SpriteSequence3D {
                id: lightRainSequence
                duration: 15
                randomStart: true
                animationDirection: SpriteSequence3D.Normal
                frameCount: 3
                interpolate: true
            }
        }
    }

    ParticleShape3D {
        id: lightRainShape
        extents.x: 500
        extents.y: 0.01
        extents.z: 500
        type: ParticleShape3D.Cube
        fill: true
    }

    TrailEmitter3D {
        id: lightRainSplashEmitter
        emitRate: 0
        lifeSpan: 800
        particle: lightRainSplashParticle
        particleScale: 15
        particleScaleVariation: 15
        follow: lightRainParticle
        emitBursts: lightRainSplashBurst
        depthBias: -10

        SpriteParticle3D {
            id: lightRainSplashParticle
            color: "#8bc0e7fb"
            maxAmount: 250
            sprite: lightRainSplashTexture
            spriteSequence: lightRainSplashSequence
            fadeInDuration: 450
            fadeOutDuration: 800
            fadeInEffect: Particle3D.FadeScale
            fadeOutEffect: Particle3D.FadeOpacity
            sortMode: Particle3D.SortDistance
            billboard: true
            offsetY: particleScale / 2

            Texture {
                id: lightRainSplashTexture
                source: "splash7.png"
            }

            SpriteSequence3D {
                id: lightRainSplashSequence
                duration: 800
                frameCount: 6
            }
        }

        DynamicBurst3D {
            id: lightRainSplashBurst
            amount: 1
            triggerMode: DynamicBurst3D.TriggerEnd
        }
    }
}