unity tutorial

MinoDetecter

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

public class MinoDetecter : MonoBehaviour {
	void Start () {
		
	}
	void Update () {
		
	}
	private void OnCollisionEnter(Collision other) {
		Debug.Log(other.gameObject.tag);
		if (other.gameObject.tag == this.tag) {
			return;
		}
	}
}

MinoMover.cs

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

public class MinoMover : MonoBehaviour {
	void Start () {
		
	}
	void Update () {
		if (Input.GetKeyDown(KeyCode.UpArrow)) {
			this.transform.localPosition = new Vector3(
				this.transform.localPosition.x,
				this.transform.localPosition.y,
				this.transform.localPosition.z + 1.0f
			);
		}
		if (Input.GetKeyDown(KeyCode.DownArrow)) {
			this.transform.localPosition = new Vector3(
				this.transform.localPosition.x,
				this.transform.localPosition.y,
				this.transform.localPosition.z - 1.0f
			);
		}
		if (Input.GetKeyDown(KeyCode.LeftArrow)) {
			this.transform.localPosition = new Vector3(
				this.transform.localPosition.x - 1.0f,
				this.transform.localPosition.y,
				this.transform.localPosition.z
			);
		}
		if (Input.GetKeyDown(KeyCode.RightArrow)) {
			this.transform.localPosition = new Vector3(
				this.transform.localPosition.x + 1.0f,
				this.transform.localPosition.y,
				this.transform.localPosition.z
			);
		}
	}
}

Spaner.cs

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

public class Spawner : MonoBehaviour {
	public GameObject prefabMinoB;
	public GameObject prefabMinoC;
	public GameObject prefabMinoL;
	public GameObject prefabMinoT;
	public GameObject prefabMinoZ;
	private List<GameObject> prefabList;

	void Start () {
		prefabList = new List<GameObject>() {
			prefabMinoB, prefabMinoC, prefabMinoL, prefabMinoT, prefabMinoZ	
		};
		this.StartCoroutine(this.Spawn());	
	}
	void Update () {
		
	}
	private IEnumerator Spawn() {
		Instantiate(prefabList[Random.Range(0, prefabList.Count)], this.transform);
		yield return new WaitForSeconds(3.0f);
		this.StartCoroutine(this.Spawn());
	}
}