The VR object details will update in the GameForm component state when the user changes input values in any of the VRObjectForm fields. To register this update, the GameForm passes the handleObjectChange method to the VRObjectForm component.
mern-vrgame/client/game/GameForm.js:
handleObjectChange = (index, type, name, val) => { var newGame = this.state.game newGame[type][index][name] = val this.setState({game: newGame}) }
The handleObjectChange method updates the field value of the specific object at the index in the array with the given type, so it is reflected in the game object stored in the state in GameForm.
