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import {
Group,
Matrix4,
Raycaster,
Vector2
} from 'three';
const _pointer = new Vector2();
const _event = { type: '', data: _pointer };
class InteractiveGroup extends Group {
constructor( renderer, camera ) {
super();
const scope = this;
const raycaster = new Raycaster();
const tempMatrix = new Matrix4();
// Pointer Events
const element = renderer.domElement;
function onPointerEvent( event ) {
event.stopPropagation();
const rect = renderer.domElement.getBoundingClientRect();
_pointer.x = ( event.clientX - rect.left ) / rect.width * 2 - 1;
_pointer.y = - ( event.clientY - rect.top ) / rect.height * 2 + 1;
raycaster.setFromCamera( _pointer, camera );
const intersects = raycaster.intersectObjects( scope.children, false );
if ( intersects.length > 0 ) {
const intersection = intersects[ 0 ];
const object = intersection.object;
const uv = intersection.uv;
_event.type = event.type;
_event.data.set( uv.x, 1 - uv.y );
object.dispatchEvent( _event );
}
}
element.addEventListener( 'pointerdown', onPointerEvent );
element.addEventListener( 'pointerup', onPointerEvent );
element.addEventListener( 'pointermove', onPointerEvent );
element.addEventListener( 'mousedown', onPointerEvent );
element.addEventListener( 'mouseup', onPointerEvent );
element.addEventListener( 'mousemove', onPointerEvent );
element.addEventListener( 'click', onPointerEvent );
// WebXR Controller Events
// TODO: Dispatch pointerevents too
const events = {
'move': 'mousemove',
'select': 'click',
'selectstart': 'mousedown',
'selectend': 'mouseup'
};
function onXRControllerEvent( event ) {
const controller = event.target;
tempMatrix.identity().extractRotation( controller.matrixWorld );
raycaster.ray.origin.setFromMatrixPosition( controller.matrixWorld );
raycaster.ray.direction.set( 0, 0, - 1 ).applyMatrix4( tempMatrix );
const intersections = raycaster.intersectObjects( scope.children, false );
if ( intersections.length > 0 ) {
const intersection = intersections[ 0 ];
const object = intersection.object;
const uv = intersection.uv;
_event.type = events[ event.type ];
_event.data.set( uv.x, 1 - uv.y );
object.dispatchEvent( _event );
}
}
const controller1 = renderer.xr.getController( 0 );
controller1.addEventListener( 'move', onXRControllerEvent );
controller1.addEventListener( 'select', onXRControllerEvent );
controller1.addEventListener( 'selectstart', onXRControllerEvent );
controller1.addEventListener( 'selectend', onXRControllerEvent );
const controller2 = renderer.xr.getController( 1 );
controller2.addEventListener( 'move', onXRControllerEvent );
controller2.addEventListener( 'select', onXRControllerEvent );
controller2.addEventListener( 'selectstart', onXRControllerEvent );
controller2.addEventListener( 'selectend', onXRControllerEvent );
}
}
export { InteractiveGroup };