Untitled

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

public class PuyoFall : MonoBehaviour
{
    int set = 1;
    int preSet = 0;
    public GameObject[] puyo;
    public GameObject[] puyo2;
    void Start()
    {
        if (transform.position.y == -5.4)
        { int puyoIndex = Random.Range(0, puyo.Length); Instantiate(puyo[puyoIndex], new Vector3(-12.5f, 5.5f, 0), puyo[puyoIndex].transform.rotation); }
        { int puyo2Index = Random.Range(0, puyo2.Length); Instantiate(puyo2[puyo2Index], new Vector3(-12.5f, 4.5f, 0), puyo2[puyo2Index].transform.rotation); }
    }
    void Update()
    {
        if (set == preSet + 1)
            if (transform.position.y > -5.5)
                transform.Translate(0, -0.05f, 0);

        if (Input.GetKey(KeyCode.LeftArrow))
            if (transform.position.x > -14.5)
                if (transform.position.y > -5.5)
                    transform.Translate(-1, 0, 0);

        if (Input.GetKey(KeyCode.RightArrow))
            if (transform.position.x < -9.5)
                if (transform.position.y > -5.5)
                    transform.Translate(1, 0, 0);
    }
    void OnTriggerEnter(Collider other)
    {
            { int puyoIndex = Random.Range(0, puyo.Length); Instantiate(puyo[puyoIndex], new Vector3(-12.5f, 5.5f, 0), puyo[puyoIndex].transform.rotation); }
            { int puyo2Index = Random.Range(0, puyo2.Length); Instantiate(puyo2[puyo2Index], new Vector3(-12.5f, 4.5f, 0), puyo2[puyo2Index].transform.rotation); }
    }

}