[L]

I’m just going through the first few tutorials for Vplay, and I’m having a problem with particles. The StackBox demo works fine, but even when I copy its code into my own experiment, the particle section throws up this error:

“Could not open \qml\Vplay\particles\ParticleVplayInternal.qml for reading. Either the file does not exist or you do not have permissions to open it.”

I already tried various permutations of where to put the .json and .png for the particle. Copying the demo arrangement, they’re in the entities folder which is in the qml folder. I also tried putting them in the assets folder, same error. Current qml file:

 

import Felgo 3.0
import QtQuick 2.0
import "entities"

GameWindow {
  id: gameWindow

  onSplashScreenFinished: world.running = true

    EntityManager {
        id: entityManager
        entityContainer: scene
    }

    Scene {
        id: scene

        PhysicsWorld {
            id: world
            running: false
            gravity.y: 9.81
            z: 10 // draw the debugDraw on top of the entities

            // these are performance settings to avoid boxes colliding too far together
            // set them as low as possible so it still looks good
            updatesPerSecondForPhysics: 60
            velocityIterations: 5
            positionIterations: 5

            // set this to true to see the debug draw of the physics system
            // this displays all bodies, joints and forces which is great for debugging
            debugDrawVisible: false
        }

        EntityBase {
            entityId: "ground1"
            entityType: "ground"
            height: 20
            width: scene.width
            anchors {
                bottom: scene.bottom
            }

            Rectangle {
                anchors.fill: parent
                color: "white"
            }

            BoxCollider {
                anchors.fill: parent
                bodyType: Body.Static
            }
        }

        EntityBase {
            entityId: "box1"
            entityType: "box"
            x: scene.width/2

            Image {
                id: boxImage
                source: "../assets/box.png"
                anchors.fill: boxCollider
            }
            BoxCollider {
                id: boxCollider
                width: 40
                height: 40
                anchors.centerIn: parent

                fixture.onBeginContact: {
                    collisionSound.play();
                    collisionParticleEffect.start();
                }
            }
            SoundEffectVPlay {
                id: collisionSound
                source: "...assets/test.wav"
            }
            ParticleVPlay {
                id: collisionParticleEffect
                fileName: "SmokeParticle.json"
            }
        }
    }
}

…and upon further inspection, the audio isn’t working either, but my main concern at the moment is the particle error.

 

[GüntherFelgo Team]

Hi,

regarding sound: You specify “…assets/test.wav” as source. As the Main.qml lies in the qml folder of the project, the correct relative path would be “../assets/test.wav”. It is also recommended to specify asset paths with Qt.resolvedUrl(…):

Qt.resolvedUrl("../assets/test.wav")

You should specify the correct fileName path for SmokeParticle.json in the same manner. You current setup refers to the file qml/SmokeParticle.json of your project.

As particles work for the StackTheBox demo, the issue probably lies in your custom project’s setup of assets and code.