[Unity2D] Shooting Game 구조 만들기 연습

 

 

 

DontDestroyOnReoad : Scene이 바뀌어도 제거되지 않음

 

! Scene 만들면 가장 먼저 Scene이름의 Empty, Script 만들기 !

 

lifetime 

<Awake - Init - Start - Update>

 

transform.SetParent(transform)

 

Camera.main.orthographicSize -> bullet.transform.position.y가 카메라 사이즈를 넘어가면 사라지게 활용

---

 

App

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

public class App : MonoBehaviour
{
    private string version = "Version 0.0.1";
    private void Awake()
    {
        DontDestroyOnLoad(this.gameObject);
    }

    void Start()
    {
        AsyncOperation oper = SceneManager.LoadSceneAsync("TitleScene");
        oper.completed += (obj) => {

            TitleMain titlemain = GameObject.FindObjectOfType<TitleMain>();
            titlemain.Init(this.version);
        };
    }
}

Title Main

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

public class TitleMain : MonoBehaviour
{
    public Text txtVersion;

    public void Init(string message)
    {
        this.txtVersion.text = message;
    }

    private void Update()
    {
        if (Input.GetMouseButtonDown(0))
        {
            SceneManager.LoadScene("LobbyScene");
        }
    }
}

LobbyMain

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

public class LobbyMain : MonoBehaviour
{
    public Button btnStart;
    public Button btnGun1;      //기본
    public Button btnGun2;      //멀티
    public Text textSelectedGun;

    private GameEnums. eGunType selectedGunType;

    public GameEnums.eGunType SelectedGunType
    {
        set
        {
            this.selectedGunType = value;
            this.textSelectedGun.text = string.Format("{0}을 선택했습니다. ", this.selectedGunType);
        }
    }

    void Start()
    {
        this.SelectedGunType = GameEnums.eGunType.Default;

        this.btnStart.onClick.AddListener(() =>
        {
            Debug.Log("게임 시작;");
            //선택된 건의 타입 출력
            AsyncOperation oper = SceneManager.LoadSceneAsync("GameScene");
            oper.completed += (obj) =>
            {
                //Game씬일 로드됨
                GameMain gameMain = GameObject.FindObjectOfType<GameMain>();
                gameMain.Init(selectedGunType);
            };
        });

        this.btnGun1.onClick.AddListener(() =>
        {
            Debug.Log("기본 Gun을 선택했습니다.");
            this.SelectedGunType = GameEnums.eGunType.Default;
        });

        this.btnGun2.onClick.AddListener(() =>
        {
            Debug.Log("MultiGun을 선택했습니다.");
            this.SelectedGunType = GameEnums.eGunType.Multiple;
        });
    }
}

GameMain

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

public class GameMain : MonoBehaviour
{
    public GameObject[] gunPrefabs;
    public PlayerController player;

    //Awake - Init - Start - Update
    public void Init(GameEnums.eGunType selectedGunType)
    {
        //총을 만든다
        Gun gun =this.CreateGun(selectedGunType);

        //플레이어에게 총을 지급한다
        this.player.Init(gun);
    }

    private Gun CreateGun(GameEnums.eGunType gunType)
    {
        int index = (int)gunType;
        GameObject prefab = this.gunPrefabs[index];
        GameObject go = Instantiate(prefab);
        Gun gun =  go.GetComponent<Gun>();

        return gun;
    }
}

GameEnums

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

public class GameEnums : MonoBehaviour
{
    public enum eGunType
    {
        Default,
        Multiple
    }

}

PlayerController

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

public class PlayerController : MonoBehaviour
{
    public GameObject bulletPrefab;
    public GameObject bullet2Prefab;
    public float speed = 1f;
    public Gun gun;

    public void Init(Gun gun)
    {
        this.gun = gun;
        this.gun.transform.SetParent(this.transform);
        this.gun.transform.localPosition = Vector3.zero;
    }

    void Start()
    {
    }


    void Update()
    {
        float h = Input.GetAxisRaw("Horizontal");     //-1, 0, 1
        float v = Input.GetAxisRaw("Vertical");
        Vector3 dir = new Vector3(h, v, 0);
        this.transform.Translate(dir.normalized * speed * Time.deltaTime);

        if (Input.GetKeyDown(KeyCode.Space))
        {
            this.Shoot();
        }

    }

    private void Shoot()
    {
        //내가 가지고 있는 Gun이 총알을 발사
        this.gun.Shoot();
    }
}

PlayerBullet

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

public class PlayerBullet : MonoBehaviour
{
    public float speed;
    private float cameraSize;

    private void Start()
    {
        cameraSize = Camera.main.orthographicSize;
    }
    void Update()
    {
        this.transform.Translate(this.transform.up * this.speed * Time.deltaTime);

        if (this.transform.position.y >= cameraSize)
        {
            Destroy(this.gameObject);
        }
    }
}

Gun

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

public class Gun : MonoBehaviour
{
    public Transform firePoint1;
    public GameObject bulletPrefab;

    public virtual void Shoot()
    {
        //총알 생성
        GameObject go = Instantiate(this.bulletPrefab);
        //위치 설정
        go.transform.position = this.firePoint1.position;
    }
}

MultiGun

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

public class MultiGun : Gun
{
    [Tooltip("right fire point")]
    public Transform firePoint2;    //right
    public override void Shoot()
    {
        //총알 생성
        GameObject go1 = Instantiate(this.bulletPrefab);        //left
        GameObject go2 = Instantiate(this.bulletPrefab);        //right
        //위치 설정
        go1.transform.position = this.firePoint1.position;
        go2.transform.position = this.firePoint2.position;
    }
}