Finding and deleting objects

Unity Engine
1

Hello
I’m making mapeditor for my game, so first thing you have to assign how big ground plane you want to have on your map,

in this example I have made ground with 1x1 size:

680983--24466--$nest1.png

Now I want to change size of ground to 5x6 so I get this:

680983--24465--$nest2.png

but the problem is what this old block still exists:

680983--24464--$nest3.png

so I have to make deleting objects tagged with “groundchunk” before the new chunks are made.
How to make code that will do something like:
Pick all objects in scene tagged with “groundchunk” and destroy them

this “picking” is the problem, I have never used something similar before so I really don’t know how to do it

this is the code for “OK” button on window where you enter new values of ground size:

if (GUI.Button(new Rect(Screen.width/2 +5, 200, 90, 20), "Ok"))
{
	SizeX = SizeXint;   [COLOR="seagreen"]//sets number of chunks on x-direction[/COLOR]
	SizeZ = SizeZint;   [COLOR="seagreen"]//sets number of chunks on z-direction[/COLOR]
	MapSize = false;   [COLOR="seagreen"]//closes window[/COLOR]
	Groundbuild();       [COLOR="seagreen"]//calls part of code for creating recently assigned sizes [/COLOR]
}

and this is “Groundbuild();” part which creates and align new set of ground chunks

void Groundbuild ()
{
	for (int i = Mathf.FloorToInt(SizeX * SizeZ); i>0; i--)
	{
		float xi = -1*(SizeX-1)*3/2 + (i - Mathf.FloorToInt((i-1)/SizeX)*SizeX -1) * 3;
		float zi = (SizeZ-1) * 3/2 - 3 * Mathf.FloorToInt((i-1)/SizeX);
		Instantiate ( Groundchunk, new Vector3(xi, 0, zi), Quaternion.identity);
	}
}
2 
void ClearGroundTiles()
{
	GameObject[] groundTiles = GameObject.FindGameObjectsWithTag("groundchunk");
	for (int i = 0; i < groundTiles.Length; i++)
	{
		Destroy(groundTiles[i]);
	}
}
3

ty it’s working :slight_smile: