xrfragment-haxe/src/3rd/js/three/xrf/q.js

xrf.frag.q = function(v, opts){
  let { frag, mesh, model, camera, scene, renderer, THREE} = opts
  console.log("   └ running query ")
  let qobjs = Object.keys(v.query)

  const instanceScene = () => {
    v.scene = new THREE.Group()
    for ( let i in v.query  ) {
      let target = v.query[i]
      if( !scene.getObjectByName(i) && i != '*' ) return console.log(`     └ mesh not found: ${i}`)
      if( i == '*' ){
        let cloneScene = scene.clone()
        cloneScene.children.forEach( (child) => v.scene.getObjectByName(child.name) ? null : v.scene.add(child) ) 
        target.mesh = v.scene
      }else{
        console.log(`     └ query-ing mesh: ${i}`)
        if( !v.scene.getObjectByName(i) && target.id === true ){ 
          v.scene.add( target.mesh = scene.getObjectByName(i).clone() )
        }
      }
      if( target.id != undefined && target.mesh  ){  
          target.mesh.position.set(0,0,0)
          target.mesh.rotation.set(0,0,0)
      }
    }
    // remove negative selectors
    let remove = []
    v.scene.traverse( (mesh) => {
      for ( let i in v.query  ) {
        if( mesh.name == i && v.query[i].id === false ) remove.push(mesh)
      }
    })
    remove.map( (mesh) => mesh.parent.remove( mesh ) )
  }

  const showHide = () => {
    let q = frag.q.query 
    scene.traverse( (mesh) => {
      for ( let i in q ) {
        if( i == mesh.name           && q[i].id    != undefined ) mesh.visible = q[i].id 
        if( i == mesh.userData.class && q[i].class != undefined ) mesh.visible = q[i].class
      }
    })
  }

  if( opts.embedded && opts.embedded.fragment == "src" ) instanceScene()
  else showHide() // href
}