arkilis / EndlessInUnity

In Unity sometimes we want to move our characters in a endless background, such as Runner or Flappy Bird. Such game required infinite loop of scene.

One of the solutions comes to mind is moving the camera along with the background. To achieve this is quite simple, the whole idea is to attach the background to your main camera:. The following example shows you how to do this:

A project with the following game objects, and put Plane under the main camera.

For the main camera, create a script named CameraFollow with the below code

CameraFollow C# Script

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class CameraFollow : MonoBehaviour {

    // assign the player (pink cube)
    public Transform player;
    
    // offset is used to put the main camra a bit behind the player (pink cube)
    private Vector3 offset;

    void Start () {
        //Calculate and store the offset value by getting the distance between the player's position and camera's position.
        offset = transform.position - player.transform.position;
    }

    // Update is called once per frame
    void FixedUpdate () {
        transform.position = player.transform.position + offset;
        Debug.Log (transform.position);
    }
}

Reference

http://www.arkilis.me/?p=1049