Hi,
I'm rewriting my game from SceneKit to RealityKit, and I'm having trouble implementing the following scenario:
I tap on the iPhone screen to select an Entity that I want to drag.
If an Entity was tapped, it should then be possible to drag it left, right, etc.
SceneKit solution:
func CGPointToSCNVector3(_ view: SCNView, depth: Float, point: CGPoint) -> SCNVector3 {
let projectedOrigin = view.projectPoint(SCNVector3Make(0, 0, Float(depth)))
let locationWithz = SCNVector3Make(Float(point.x), Float(point.y), Float(projectedOrigin.z))
return view.unprojectPoint(locationWithz)
}
and then I was calling:
SCNView().hitTest(location, options: [SCNHitTestOption.firstFoundOnly:true])
the code was called inside of the UIPanGestureRecognizer in my UIViewController.
Could I reuse that code or should I go with the SwiftUI approach - something like that:
var body: some View {
RealityView {
....
} .gesture(TapGesture().onEnded {
})
?
I already have this code:
@State private var location: CGPoint?
.onTapGesture { location in
self.location = location
}
I'm trying to identify the entity that was tapped within the RealityView like that:
RealityView { content in
let box: ModelEntity = createBox() // for now there is only one box, however there will be many boxes
content.add(box)
let anchor = AnchorEntity(world: [0, 0, 0])
content.add(anchor)
_ = content.subscribe(to: SceneEvents.Update.self) { event in
//TODO: find tapped entity, so that it could be dragged inside of the DragGesture()
}
Any help would be appreciated.
I also noticed that if I create a TapGesture like that:
TapGesture(count: 1)
.targetedToAnyEntity()
and add it to my view using .gesture() then it is not triggered.
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