update method

WebXRController update(XRInputSource? inputSource, XRFrame frame, XRReferenceSpace? referenceSpace)

Implementation

WebXRController update(XRInputSource? inputSource, XRFrame frame, XRReferenceSpace? referenceSpace ) {
	XRPose? inputPose;
	XRPose? gripPose;
	bool handPose = false;

	final WebXRController? targetRay = _targetRay;
	final WebXRController? grip = _grip;
	final WebXRController? hand = _hand;

	if ( inputSource != null && frame.session.visibilityState != 'visible-blurred' ) {
		if ( targetRay != null ) {
			inputPose = frame.getPose( inputSource.targetRaySpace, referenceSpace );

			if ( inputPose != null ) {
				targetRay.matrix.copyFromUnknown( inputPose.transform.matrix );
				targetRay.matrix.decomposeEuler( targetRay.position, targetRay.rotation, targetRay.scale );

				if ( inputPose.linearVelocity != null) {
					targetRay.hasLinearVelocity = true;
					targetRay.linearVelocity.copyFromUnknown( inputPose.linearVelocity );
				}
          else {
					targetRay.hasLinearVelocity = false;
				}

				if ( inputPose.angularVelocity != null) {
					targetRay.hasAngularVelocity = true;
					targetRay.angularVelocity.copyFromUnknown( inputPose.angularVelocity );
				}
          else {
					targetRay.hasAngularVelocity = false;
				}

				dispatchEvent( _moveEvent );
			}
		}

		if ( hand != null && inputSource.hand != null) {
			handPose = true;

        final map = inputSource.hand!.dartify() as Map;

			for ( final inputjoint in map.keys) {
				// Update the joints groups with the XRJoint poses
				final jointPose = frame.getJointPose( inputjoint, referenceSpace );

				if ( hand.joints[ inputjoint['jointName'] ] == null ) {
					// The transform of this joint will be updated with the joint pose on each frame
					final joint = Group();
					joint.matrixAutoUpdate = false;
					joint.visible = false;
					hand.joints[ inputjoint['jointName'] ] = joint;
					// ??
					hand.add( joint );
				}

				final joint = hand.joints[ inputjoint['jointName'] ] as Object3D;

				if ( jointPose != null ) {
					joint.matrix.copyFromUnknown( jointPose.transform.matrix.dartify() );
					joint.matrix.decomposeEuler( joint.position, joint.rotation, joint.scale );
					joint.userData['jointRadius'] = jointPose.radius;
				}

				joint.visible = jointPose != null;
			}

			// Custom events

			// Check pinchz
			final indexTip = hand.joints[ 'index-finger-tip' ];
			final thumbTip = hand.joints[ 'thumb-tip' ];
			final distance = indexTip.position.distanceTo( thumbTip.position );

			const distanceToPinch = 0.02;
			const threshold = 0.005;

			if ( hand.inputState['pinching'] && distance > distanceToPinch + threshold ) {
				hand.inputState['pinching'] = false;
				dispatchEvent(Event(
					type: 'pinchend',
					handedness: inputSource.handedness,
					target: this
          ));
			}
        else if ( ! hand.inputState['pinching'] && distance <= distanceToPinch - threshold ) {

				hand.inputState['pinching'] = true;
				dispatchEvent(Event(
					type: 'pinchstart',
					handedness: inputSource.handedness,
					target: this
          ));
			}
		}
      else {
			if ( grip != null && inputSource.gripSpace != null) {
				gripPose = frame.getPose( inputSource.gripSpace!, referenceSpace );

				if ( gripPose != null ) {
					grip.matrix.copyFromUnknown( gripPose.transform.matrix );
					grip.matrix.decomposeEuler( grip.position, grip.rotation, grip.scale );

					if ( gripPose.linearVelocity != null) {
						grip.hasLinearVelocity = true;
						grip.linearVelocity.copyFromUnknown( gripPose.linearVelocity );
					}
            else {
						grip.hasLinearVelocity = false;
					}

					if ( gripPose.angularVelocity != null) {
						grip.hasAngularVelocity = true;
						grip.angularVelocity.copyFromUnknown( gripPose.angularVelocity );
					}
            else {
						grip.hasAngularVelocity = false;
					}
				}
			}
		}
	}

	if ( targetRay != null ) {
		targetRay.visible = ( inputPose != null );
	}

	if ( grip != null ) {
		grip.visible = ( gripPose != null );
	}

	if ( hand != null ) {
		hand.visible = handPose;
	}

	return this;
}