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Question by nyanku · Sep 11, 2018 at 07:44 PM · movementtranslatewallsgaps

How to move a GameObject one after the other without having any gaps?

I'm trying to build a clone to this game. (http://gprime.net/game.php/copter), but I'm having trouble creating the walls.

I have two groups of 30 GameObjects. One for the top wall and another group for the bottom wall. Like so:


alt text


Each one has a script that moves the wall to the left, Here is the script:


     public static float lvl = 0f;
 
     private void Update()
     {
         float amtToMove = Time.deltaTime * LevelManager.Instance.wallSpeed;
 
         if(!MasterManager.Instance.gameOver)
             transform.Translate(Vector3.left * amtToMove);
             if(transform.localPosition.x < 0)
                 Reset();
     }
 
     public void Reset()
     {
         lvl += 0.09f;
         transform.localPosition = new Vector3(30f, transform.localPosition.y + Mathf.Sin(lvl), 0); 
     }



As the game continues LevelManager.Instance.wallSpeed changes value.

The problem with this, is that eventually it "breaks" and leaves a gap between each wall. Like so:


alt text


Is there a fix for this? I don't quite understand what I'm doing wrong.


screen-shot-2018-09-11-at-32659-pm.png (35.8 kB)
screen-shot-2018-09-11-at-32618-pm.png (19.6 kB)
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Answer by eses · Sep 12, 2018 at 06:03 PM

Hi @nyanku

One solution could be like this:
If your wall blocks move towards left, check when the leftmost wall block removes itself.

When this happens, create a new block. New block should be placed relative to first block on right. If all your blocks are 1m wide, then place the new piece to rightMostPiece.transform.position + Vector3.right (one unit from it's position). This way I think it doesn't matter if blocks are moving faster than default speed, new block will just line up itself with the previously newest block.

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avatar image nyanku · Sep 13, 2018 at 02:36 PM 1
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Yup, this works great. Thanks!.

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