Attaching Camera to a Moving Object: Ride Vehicle Example with Ghost Train Controls Enabled
In this article, we will cover the process of attaching a camera to a moving object, specifically a ride vehicle, and enabling controls that will give it a ghost train-like appearance.
Prerequisites
Before we begin, it is assumed that you have a basic understanding of the following concepts:
- 3D game development
- Unity engine
- C# programming
Attaching the Camera to the Ride Vehicle
The first step in creating a ghost train effect is to attach the camera to the ride vehicle. This can be done by creating a new GameObject as a child of the ride vehicle and attaching the camera to that GameObject.
public GameObject rideVehicle;
void Start()
{
GameObject cameraParent = new GameObject("Camera Parent");
cameraParent.transform.parent = rideVehicle.transform;
Camera mainCamera = GetComponent();
mainCamera.transform.parent = cameraParent.transform;
}
In the above code, a new GameObject called "Camera Parent" is created and made a child of the ride vehicle. The main camera is then made a child of the "Camera Parent" GameObject. This will ensure that the camera moves with the ride vehicle.
Enabling Ghost Train Controls
To give the ride vehicle a ghost train-like appearance, we need to enable controls that will make it seem like the camera is moving through a haunted house or ghost train ride.
One way to achieve this effect is by using a series of waypoints that the camera will follow. These waypoints can be created in the Unity editor and assigned to a List in your script.
public List waypoints;
private int currentWaypoint = 0;
void Update()
{
if (Vector3.Distance(transform.position, waypoints[currentWaypoint].position) < 0.1f)
{
currentWaypoint++;
if (currentWaypoint >= waypoints.Count)
{
currentWaypoint = 0;
}
}
transform.position = Vector3.Lerp(transform.position, waypoints[currentWaypoint].position, Time.deltaTime * speed);
transform.LookAt(waypoints[currentWaypoint]);
}
In the above code, the camera's position is updated to move towards the next waypoint in the list. Once it reaches a waypoint, it moves on to the next one. The LookAt function is used to make the camera look towards the current waypoint, giving the effect of moving through a haunted house or ghost train.
In this article, we have covered the process of attaching a camera to a moving object, specifically a ride vehicle, and enabling ghost train controls that give it a haunted house-like appearance.
- We created a new GameObject as a child of the ride vehicle and attached the camera to it.
- We used a series of waypoints to move the camera through the scene, giving it a ghost train-like appearance.