GenerateGrid.cs

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

public class GenerateGrid : MonoBehaviour {
	public float spawnSpeed;
	public GameObject block1;
	public uint MaxTotalGridSize = 200;
	public uint griddistance = 8;
	public bool resetgrid1 = false;
	public uint GridSize = 0;


	void Start () {
		CreateWorld();
	}

	void Update () {



		GridSize = MaxTotalGridSize;

		if (resetgrid1 == true) {
			ResetGrid ();
		}

	}





//	IEnumerator CreateWorld() {

//		yield return new WaitForSeconds (spawnSpeed);
//		for(uint x =0; x<GridSize; x+=griddistance) {
//			yield return new WaitForSeconds (spawnSpeed);
//			for(uint z =0; z<GridSize; z+=griddistance) {
//				yield return new WaitForSeconds (spawnSpeed);
//				GameObject block = Instantiate(block1);
//				block.transform.position = new Vector3(this.transform.position.x + x, this.transform.position.y, this.transform.position.z + z);
//				block.transform.parent = this.transform;
//			}
//		}
//	}




	void CreateWorld() {


		for(uint x =0; x<GridSize; x+=griddistance) {

			for(uint z =0; z<GridSize; z+=griddistance) {

				GameObject block = Instantiate(block1);
				block.transform.position = new Vector3(this.transform.position.x + x, this.transform.position.y, this.transform.position.z + z);
				block.transform.parent = this.transform;
			}
		}
	}



	public void ResetGrid(){
		foreach (Transform child in transform) {
			GameObject.Destroy(child.gameObject);
		}
//		StartCoroutine(CreateWorld());
		CreateWorld ();
	}

}