Obstacle speed

Hello, im making endless runer for android devices. It's my first game and i have a problem. I want to obstacles go faster as time goes. Now my obstacles is moving at same time forever, i want them to become faster and faster every second / 10 seconds. I don't know how to do this bcz i have 2 scripts for obstacles, 1 is for spawning, 2 is for moving and game over scene.
Here's script for moving:

Code (CSharp):

1. using UnityEngine;
2. using System.Collections;
3.  
4. public class ObstacleScript : MonoBehaviour {
5.     public float moveSpeed = 5f;
6.  
7.     void Update () {
8.         transform.Translate (Vector3.back * moveSpeed * Time.deltaTime);
9.     }
10.  
11.     void OnCollisionEnter(Collision other) {
12.         if (other.gameObject.tag == "Player") {
13.             StartCoroutine (GameOver());
14.         }
15.     }
16.    
17.     IEnumerator GameOver(){
18.         yield return new WaitForSeconds(2f);
19.         Application.LoadLevel("Scene_GameOver");
20.     }
21. }

And here is script for spawning (it's spawning 1 of 5 random objects every 2 seconds at 1 of 2 random positions):

Code (CSharp):

1. using UnityEngine;
2. using System.Collections;
3. using System.Collections.Generic;
4.  
5. public class ObstacleSpawnScript : MonoBehaviour {
6.     public Transform[] points;
7.     public float InvokeRate = 2f;
8.  
9.     List<GameObject> obstacleList = new List<GameObject>();
10.     public GameObject Car1;
11.     public GameObject Car2;
12.     public GameObject Car3;
13.     public GameObject Car4;
14.     public GameObject Car5;
15.  
16.    
17.     void Start () {
18.         InvokeRepeating ("pickPoints", 2.0f, InvokeRate);
19.  
20.         obstacleList.Add(Car1);
21.         obstacleList.Add(Car2);
22.         obstacleList.Add(Car3);
23.         obstacleList.Add(Car4);
24.         obstacleList.Add(Car5);
25.     }
26.  
27.     void pickPoints(){
28.         int indexNumber = Random.Range(0, points.Length);
29.         int obstacleIndex = UnityEngine.Random.Range(0,obstacleList.Count);
30.         Instantiate(obstacleList[obstacleIndex], points[indexNumber].position, Car1.transform.rotation);
31.     }
32. }

Can some one write a code for it? Please help!

 

What you want to do is add a timer, that increments moveSpeed by 'x' each 'y' seconds.
Something like:

Code (CSharp):

1. private float _moveSpeed = 5.0f;
2. private float _speedIncrement = 0.2f;
3. private float _timeToIncrement = 10.0f;
4. private float _timer = 0.0f;
5. void Update{
6.     _timer += time.deltaTime;
7.     if(_timer >= _timeToIncrement)
8.     {
9.         _moveSpeed += _speedIncrement;
10.         _timer = 0.0f;
11.     }
12. }

 

It would work i guess but the problem is that when if i add that script to the first script(moving script) then it will increment the speed for that object not for all spawning objects i guess.

 

If you implement it to the ObstacleSpawnScript script it would indeed work on a object basis, you could also make a script that loops through all active Obstacles and then modify the speed that way using the same timer principle.

 

How to make that loop script? 0_o I realy don't know much about unity/c#, as i said it's my first game...

 

Okay, i realized what i have to do, but how can i use that _moveSpeed value in ObstacleScript(Move Script)?

 

What you most likely want is have a property that encapsulates your private _moveSpeed field on your ObstacleScript that the script the loop is in an call. http://www.tutorialspoint.com/csharp/csharp_encapsulation.htm