RandomBlocks

using UnityEngine;
using System.Collections;

public class RandomBlocks : MonoBehaviour {

	public Transform block;
	public int tempJ;
	private float nextBlockTime = 0.0f;
	public float spawnRate;
	public Vector3 tempStartposition;
	public ArrayList blockPositionValue = new ArrayList();


	// Use this for initialization
	void Start () {
		// initiate positon and color
		tempStartposition = transform.position;

	}
	
	// Update is called once per frame
	void Update () {

		int numberOfBlocks = GameObject.FindGameObjectsWithTag("Block").Length;
	
		if (nextBlockTime < Time.time &&
		    numberOfBlocks < 40) {


			spwanBlock ();
			nextBlockTime = Time.time + spawnRate;	
			
						}

		if (numberOfBlocks > 99) {
				
			foreach(Vector3 i in blockPositionValue)
			{
				Debug.Log(i);

			}
			
		}
		
	}
	
	void spwanBlock(){

		//update block start position whith last one of last loop
		Vector3 blockPosition = tempStartposition; 


		int j = 0;


		for (int i=0; i < 10; i++) {
			
			j = Random.Range(1,7);

				// avoid block at spawned back to same position
				
				while(Mathf.Abs(j-tempJ) == 3)
				{
					j = Random.Range(1,7);
				}
				
				if(Mathf.Abs(j-tempJ) != 3){
					
					switch(j){
					case 1:
						blockPosition.x ++;
						break;
					case 2:
						blockPosition.y ++;
						break;
					case 3:
						blockPosition.z ++;
						break;
					case 4:
						blockPosition.x --;
						break;
					case 5:
						blockPosition.y --;
						break;
					case 6:
						blockPosition.z --;
						break;
						
					}

				}


			
			tempJ = j;


			block.renderer.material.color = Color.green;
			
			
			block.name = "block" + i;

			blockPositionValue.Add(blockPosition);
			
			
			Instantiate(block,blockPosition, Quaternion.identity);

			//transform.position;
		
		}

		tempStartposition = blockPosition;


	}
}