[Unity 2D / 유니티 교과서] 5장 예제

PlayerController

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

public class PlayerController : MonoBehaviour
{
    public float radius;
    // Start is called before the first frame update
    void Start()
    {
        
    }

    // Update is called once per frame
    void Update()
    {
        if (Input.GetKeyDown(KeyCode.RightArrow))
        {
            this.transform.Translate(3, 0, 0);
        }
        else if (Input.GetKeyDown(KeyCode.LeftArrow))
        {
            this.transform.Translate(-3, 0, 0);
        }
    }

    public void LButtonDown()
    {
        this.transform.Translate(-3, 0, 0);
    }
    public void RButtonDown()
    {
        this.transform.Translate(3, 0, 0);
    }

    private void OnDrawGizmos()
    {
        Gizmos.color = Color.red;
        Gizmos.DrawWireSphere(this.transform.position, 1f);
    }
}

 

ArrowController

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

public class ArrowController : MonoBehaviour
{
    GameObject player;
    public float radius;
    public const float GROUND = -5.1f;
    // Start is called before the first frame update
    void Start()
    {
        this.player = GameObject.Find("player");
        
    }

    // Update is called once per frame
    void Update()
    {
        //프레임 베이스
        transform.Translate(0, -0.1f, 0);

        //시간 베이스
        //방향*속도*시간
        float speed = 1f;
        var movement = -1 * speed * Time.deltaTime;
        this.transform.Translate(0, movement, 0);

        if (transform.position.y < GROUND)
        {
            Destroy(gameObject);
        }

        Vector2 p1 = transform.position;
        Vector2 p2 = this.player.transform.position;
        float distance = Vector2.Distance(p1, p2);

        var r = this.radius + this.player.GetComponent<PlayerController>().radius;

        if (distance < r)
        {
            //감독관에 알려주기
            GameObject director = GameObject.Find("GameDirector");
            director.GetComponent<GameDirector>().DecreaseHp();

            //충돌 
            Destroy(this.gameObject);   //게임 오브젝트 제거 
        }

        if (this.transform.position.y < GROUND)
        {
            Destroy(this.gameObject);   //게임 오브젝트 제거 
            //Destroy(this);   //ArrowController의 인스턴스 제거 : 컴포넌트 제거 
        }
    }
    private void OnDrawGizmos()
    {
        Gizmos.color = Color.red;
        Gizmos.DrawWireSphere(this.transform.position, this.radius);
    }
}

 

ArrowGenerator

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

public class ArrowGenerator : MonoBehaviour
{
    public GameObject arrowPrefab;
    bool isRun = true;
    // Start is called before the first frame update
    void Start()
    {
        Debug.LogFormat("{0}", arrowPrefab);
    }

    float delta;
    // Update is called once per frame
    void Update()
    {
        if (isRun==true)
        {
            //시간누적
            this.delta += Time.deltaTime;       //매 프레임 간격 시간을 누적

            if (this.delta > 1)     //1초 지남
            {
                this.delta = 0;
                Debug.Log("화살 생성");
                //arrowPrefab의 인스턴스 생성
                GameObject go = Instantiate(this.arrowPrefab);
                //랜덤 x 좌표로 위치 변경
                //-6~6
                var x = Random.Range(-6, 7);
                //생성된 화살 오브젝트의 위치로 사용
                go.transform.position = new Vector3(x, 6, 0);
            }
        }
    }
    public void Stop()
    {
        isRun = false;
    }
}

 

GameDirector

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

public class GameDirector : MonoBehaviour
{
    GameObject timeGo;
    private GameObject hpGauge;
    public ArrowGenerator arrowGen;
    Text textTime;
    float delta = 10;
    bool gameover = false;
    // Start is called before the first frame update
    void Start()
    {
        this.timeGo = GameObject.Find("Time");
        this.hpGauge = GameObject.Find("hpGauge");
        textTime = this.timeGo.GetComponent<Text>();
    }

    // Update is called once per frame
    void Update()
    {
        if (gameover == false)
        {
            delta -= Time.deltaTime;
            if (delta < 0)
            {
                delta = 0.0f;
                gameover = true;
                Debug.Log("Gameover");
                this.arrowGen.Stop();
            }
            textTime.text = string.Format("남은 시간 : {0:F2}", delta);
        }
    }
    public void DecreaseHp()
    {
        var img = this.hpGauge.GetComponent<Image>();
        img.fillAmount -= 0.1f;
    }
}