Spawned Cubes go crazy and sometimes move away from the player.

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Basically I have a player and two empty game objects . When the cubes spawn they move away from the player in a crooked line any way to fix this.

 

Can you show your script? Or screenshot or more info how they are moved?

 

OK code.

Code (CSharp):

1. using UnityEngine;
2. using System.Collections;
3.  
4. public class CreateCube : MonoBehaviour {
5.     public GameObject Car;
6.     public Transform Player;
7.  
8.     // Use this for initialization
9.     void Start () {
10.         StartCoroutine (EnemySpawn ());
11.     }
12.    
13.     IEnumerator EnemySpawn()
14.     {
15.         while (true) {
16.             Instantiate (Car, transform.position, Quaternion.identity);
17.             yield return new WaitForSeconds (1);
18.         }
19.  
20.     }
21. }
22.  

 

Photo

 

How the cubes are getting moved?
Or you want to spawn in straight line?

 

Yeah , I want them to move in a straight line so the player can dodge them.

 

*Straight line towards the player.

 

Movement code please

 

Here is the deal , I created a script where the object moves forward automatically in a straight line.Tried it out on a cube it worked. Attached it to the empty game objects that the objects were spawning off of.It worked now the "cars" move straight , so I figured that out, but it moves away from the player. Any ideas how to fix that?

 

No idea, post the code which makes it happen.

 

Attached this to the empty gameobjects which spawn the cubes , and they move in a straight line now, but away from the player.

Code (CSharp):

1. using UnityEngine;
2. using System.Collections;
3.  
4. public class MoveFoward : MonoBehaviour {
5.     public float moveSpeed = 10f;
6.  
7.     // Use this for initialization
8.     void Start () {
9.    
10.     }
11.    
12.     // Update is called once per frame
13.     void Update () {
14.  
15.         transform.position += transform.forward * Time.deltaTime * moveSpeed;
16.     }
17. }
18.  

 

Are you sure the forward direction is towards the player? The cubes may not be oriented correctly when spawning.

 

This might help you understand a little better.

Code (JavaScript):

1. var prefab : GameObject;
2. var gridX = 5;
3. var gridY = 5;
4. var gridZ = 5;
5. var spacing = 1;
6.  
7. function Start ()
8. {
9.                 for (var y = 0; y < gridY; y++){
10.                 for (var x = 0; x < gridX; x++){
11.                 for (var z = 0; z < gridZ; z++){
12.        
13.                 var pos = Vector3(x,y,z) * spacing;
14.                 Instantiate(prefab, pos, Quaternion.identity);
15.        
16.        
17.        
18.             }
19.         }
20.     }
21. }
22.  

 

That's exactly my point the cubes are moving AWAY from the player instead of looking right at him and heading towards him.

 

It helped me a bit , but I don't understand much JS as I use C#.

 

Wait, you never specified what direction the cube should look. You just said quaternion.identity is the rotation.

Instead of doing that, in the start method, make the cube turn to face the player. Because apparently right now it's just spawning with a rotation of 0,0,0,0, and that will only be the direction of the player if they specifically step in that line.

You could also turn the spawning object to face the player, and when you instantiate the objects, set them to have the same rotation as the parent.

 

Ok , I get what you're saying, would transform.lookat(Player) work?

 

For sure. Well, I think it takes a vector 3 but still

 

Vector 3 what exactly 0,2,0?

 

Yup you are probably right, I hope you can correct my script. I used transform.Lookat(Player) Cubes started spawning EVERYWHERE , on the player ,In the sky LOL.

Code (CSharp):

1. using UnityEngine;
2. using System.Collections;
3.  
4. public class CreateCube : MonoBehaviour {
5.     public GameObject Car;
6.     public Transform Player;
7.  
8.     // Use this for initialization
9.     void Start () {
10.         StartCoroutine (EnemySpawn ());
11.     }
12.    
13.     IEnumerator EnemySpawn()
14.     {
15.         while (true) {
16.             Instantiate (Car, transform.position, Quaternion.identity);
17.             yield return new WaitForSeconds (1);
18.             transform.LookAt(Player);
19.         }
20.  
21.     }
22. }
23.  

 

You're not setting the car's transform to look at the player, you're setting the spawner object to look at the player

Change line 16 to "GameObject newcar = (GameObject)Instantiate(Car, transform.position,Quaternion.identity);"
This will save the reference so you can use it later, so you can use this to tell the newly spawned car to look at the player.

newcar.transform.LookAt(player);

 

Ok , the cubes spawned ,but only the first two came forward to the player and then crossed paths.And sometimes all the cubes come forward and basically jumble together.This is gonna cause a problem considering I am doing a car game.The spawn "cars" follow the player I see, which is not really what I want, I just want the objects to spawn far away from another so the player can dodge them, Should I scrap this and just let the objects spawn randomly on the map? I hope I can get your feedback.

Code (CSharp):

1. using UnityEngine;
2. using System.Collections;
3.  
4. public class CreateCube : MonoBehaviour {
5.     public GameObject Car;
6.     public Transform Player;
7.  
8.     // Use this for initialization
9.     void Start () {
10.         StartCoroutine (EnemySpawn ());
11.     }
12.  
13.     IEnumerator EnemySpawn()
14.     {
15.         while (true) {
16.             GameObject newcar = (GameObject)Instantiate(Car,transform.position,Quaternion.identity);
17.             yield return new WaitForSeconds (1);
18.             newcar.transform.LookAt(Player);
19.         }
20.  
21.     }
22. }
23.  

 

Photo of cubes going crazy.

 

Anyone?

 

Asked around but it seems my issue is unfixable.

 

Code (CSharp):

1.  GameObject newcar = (GameObject)Instantiate(Car,transform.position,Quaternion.identity);

For the position of the spawned cars to be separated, you should write a method to generate position (i.e return a Vector3 around the player, multiply a distance by Random.AroundUnitCircle etc..), and replace transform.position with the result of that method.

For the problem of moving toward player, just plug a negative sign and play around with the direction you observe. You have to do some experiment.

P/s: Avoid double|triple post as those are signals of someone unfriendly.

 

@tomowale,

Consider making a copy of your project and reducing it to the bare minimum that demonstrates your issues.
Upload the package here ( or elsewhere and provide a link)
This will reduce confusion and guessing (you will need to provide an unambiguous description of your expectations and problems ) ...

Regards,

 

@louisgv Is there any documentation on the Random.AroundUnitCircle?(Because If I don't have any , I would just have to ask what it is which would be annoying for you) Couldn't seem to find any .Oh and also for Vector 3 do you mean just replace transform.position with Vector3 (0,2,0) or something like that?

P.s Won't do that again then, didn't know it meant so much, really was just desperate for an answer.

 

@kdub Good idea.What would you say is the bare minimum?

 

Just enough to demonstrate the issue ... without all the bandwidth gobbling extras

... but test it in case you accidentally have fixed the problem.

 

Sorry for the wrong name . What you wanted to experiment with is this guy:
http://docs.unity3d.com/ScriptReference/Random-insideUnitCircle.html

Yeah. But that Vector3 (0,2,0) you declared won't be dynamic enough, i.e you will just have your car spawn at that one point only.

Pass in Random.insideUnitCircle multiplied by a delta distance should do the trick

P/s: To avoid triple|double post, just click edit your post. Unless your thread was abandoned for more than a week then it would be reasonable to pull it up by double post

 

If this is what you meant.Tried it out , cubes just decided not to spawn at all (cuz of transform.position missing)

Code (CSharp):

1. GameObject newcar = (GameObject)Instantiate(Car,Random.insideUnitCircle*5,Quaternion.identity);

 

One question though what does Random.InsideUnitCircle exactly do? Does it spawn objects in a specific area?

 

Returns a random point inside a circle with radius 1 (Read Only).
http://docs.unity3d.com/ScriptReference/Random-insideUnitCircle.html

https://www.google.com.au/search?q=...rome..69i57&sourceid=chrome&es_sm=93&ie=UTF-8

 

"with radius 1" not to sure what that means. But will post some code that I tried out later ( Lol Unity refused to let me post some code so will try later)

 

I made some new code but no cubes appear.

Code (CSharp):

1. using UnityEngine;
2. using System.Collections;
3.  
4. public class CreateCube : MonoBehaviour {
5.     public GameObject Car;
6.     public Transform Player;
7.     public Vector3 newPosition = Random.insideUnitCircle * 6;
8.     // Use this for initialization
9.     void Start () {
10.         StartCoroutine (EnemySpawn ());
11.     }
12.    
13.     IEnumerator EnemySpawn()
14.     {
15.         while (true) {
16.             GameObject newcar = (GameObject)Instantiate(Car,transform.position,Quaternion.identity);
17.             yield return new WaitForSeconds (1);
18.             newcar.transform.LookAt(Player);
19.         }
20.         transform.position.x = newPosition.x;
21.         transform.position.y = newPosition.y;
22.        
23.  
24. }
25. }

 

Unity gives me the errors of the new code is unreachable , and
"Cannot modify a value type return value of `UnityEngine.Transform.position'. Consider storing the value in a temporary variable". Here is the new code.

Code (CSharp):

1. using UnityEngine;
2. using System.Collections;
3.  
4. public class CreateCube : MonoBehaviour {
5.     public GameObject Car;
6.     public Transform Player;
7.     public Vector3 newPosition = Random.insideUnitCircle * 6;
8.     // Use this for initialization
9.     void Start () {
10.         StartCoroutine (EnemySpawn ());
11.     }
12.    
13.     IEnumerator EnemySpawn()
14.     {
15.         while (true) {
16.             GameObject newcar = (GameObject)Instantiate(Car,transform.position,Quaternion.identity);
17.             yield return new WaitForSeconds (1);
18.             newcar.transform.LookAt(Player);
19.         }
20.         transform.position.x = newPosition.x;
21.         transform.position.y = newPosition.y;
22.        
23.  
24. }
25. }

 

Well the cubes don't actually spawn after I used your code , 2 cubes just appear infront of each other (heading away from the player) and the old 2 cubes disappear. Some even fall off the edge, it kinda looks cool though lol. Did you test the code?
Should I upload footage of the issue? If so how.
OR
Should I move onto the the actual building of my game and use a new method to spawn cars,now or continue prototyping?

 

Does anyone know how some creators manage to make cars come and go in different directions and spawn flawlessly into the scene view and then start moving?