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Unity/Unity(C#์ค‘๊ธ‰)

Delegate

2021. 12. 25. 23:05
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Delegate ์œ„์ž„์ด๋ž€ ์ „์ฒด ์ž‘์—… ์ค‘ ์ผ๋ถ€๋ฅผ ๋ˆ„๊ตฐ๊ฐ€๋ฅผ ๋Œ€์‹ ํ•ด ํšจ์œจ์ ์œผ๋กœ ์ฒ˜๋ฆฌํ•˜๋Š” ํ˜•ํƒœ๋ฅผ ๋งํ•œ๋‹ค.

๋˜ ๋‹ค๋ฅธ ํ˜•ํƒœ์˜ ์œ„์ž„์œผ๋กœ C# ์ œ๋„ˆ๋ฆญ๊ณผ Action ๋˜๋Š” Action<T>๋ฅผ ์‚ฌ์šฉํ•˜๋Š” ๋ฐฉ์‹์ด ์žˆ๋‹ค.

์œ„์ž„์„ ์‚ฌ์šฉํ•˜๋Š” ์ฃผ์š”ํ•œ ๋‘ ๊ฐœ์˜ ํŒจํ„ด์€ ์„ค์ •๊ฐ€๋Šฅ๋ฉ”์†Œ๋“œ(Configurable method)ํŒจํ„ด๊ณผ

์œ„์ž„(delegation) ํŒจํ„ด์ด๋‹ค.

 

1. ์„ค์ • ๊ฐ€๋Šฅ ๋ฉ”์†Œ๋“œ ํŒจํ„ด

์ผ์ด๋‚˜ ํ•จ์ˆ˜์˜ ์ผ๋ถ€๋ฅผ ๋‹ค๋ฅธ ๋ฉ”์†Œ๋“œ๋กœ ์ „๋‹ฌํ•ด ์ž‘์—…์„ ์™„๋ฃŒํ•˜๋Š”๋ฐ ์‚ฌ์šฉํ•˜๋Š” ํŒจํ„ด์ด๋‹ค.

์ด ํŒจํ„ด์€ ๊ณ ์œ ํ•œ ๋ฐฉ์‹์„ ๊ฐ€์ง„ ๊ฐœ๋ณ„ ์ฝ”๋“œ๊ฐ€ ๊ณตํ†ต๋œ ์ž‘์—…์„ ์ˆ˜ํ–‰ํ•  ๋•Œ ์‚ฌ์šฉํ•œ๋‹ค.

์˜ˆ๋ฅผ ๋“ค๋ฉด ๊ฑท๊ธฐ, ๋›ฐ๊ธฐ, ํƒ์ƒ‰ ๋“ฑ์ด ์ด์— ํ•ด๋‹นํ•œ๋‹ค.

์ด ๋ชจ๋“  ์ž‘์—…์€ ์บ๋ฆญํ„ฐ์˜ ๊ธฐ๋ณธ ํ–‰์œ„๊ฐ€ ๋  ์ˆ˜ ์žˆ๋‹ค.

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

public class DeleTest : MonoBehaviour
{
    //์œ„์ž„ ๋ฉ”์†Œ๋“œ ์‹œ๊ทธ๋‹ˆ์ฒ˜ ์ •์˜
    delegate void RobotAction();
    //์œ„์ž„์„ ์œ„ํ•œ ํ”„๋ผ์ด๋น— ์†์„ฑ
    RobotAction myRobotAction;

    private void Start()
    {
        //์œ„์ž„์„ ์œ„ํ•œ ๊ธฐ๋ณธ ๋ฉ”์†Œ๋“œ ์„ค์ •
        myRobotAction = RobotWalk;
    }

    private void Update()
    {
        if (Input.GetKeyDown(KeyCode.W)) myRobotAction = RobotWalk;//์œ„์ž„ ๋ฉ”์†Œ๋“œ๋ฅผ ๊ฑท๊ธฐ๋กœ ์„ค์ •
        if (Input.GetKeyDown(KeyCode.R)) myRobotAction = RobotRun;//์œ„์ž„ ๋ฉ”์†Œ๋“œ๋ฅผ ๋›ฐ๊ธฐ๋กœ ์„ค์ •
        //์—…๋ฐ์ดํŠธ ๋•Œ ์„ ํƒ๋œ ์œ„์ž„์„ ์‹คํ–‰
        myRobotAction();
    }

    void RobotWalk()
    {
        Debug.Log("๋šœ ๋‘‘.. ๋šœ ๋š.. ๊ฑท๋Š”๋‹ค.. ๋กœ๋ณดํŠธ..");
    }

    void RobotRun()
    {
        Debug.Log("๋šœ๋‘‘ ๋šœ๋š ๋›ด๋‹ค ๋กœ๋ด‡..");
    }
}

2. ์œ„์ž„ ํŒจํ„ด

์œ„์ž„ ํŒจํ„ด์€ ๋ฉ”์†Œ๋“œ๊ฐ€ ํ—ฌํผ ๋ผ์ด๋ธŒ๋Ÿฌ๋ฆฌ๋ฅผ ํ˜ธ์ถœํ•˜๋Š” ์ƒํ™ฉ์—์„œ ์‚ฌ์šฉ๋œ๋‹ค.

์š”์ฒญํ•œ ์ž‘์—…์ด ์™„๋ฃŒ๋˜๋ฉด ๋‹ค์‹œ ๋ฉ”์ธ ํ•จ์ˆ˜๋กœ ๋Œ์•„์˜จ๋‹ค.

์›น์—์„œ ์ž๋ฃŒ๋ฅผ ๋‹ค์šด๋กœ๋“œํ•  ๋•Œ ์ด ํŒจํ„ด์„ ์ฃผ๋กœ ์‚ฌ์šฉํ•œ๋‹ค.

๋‹ค์šด๋กœ๋“œ๊ฐ€ ๋๋‚˜๋ฉด ๋ฐ›์€ ๋‚ด์šฉ์„ ๊ฐ€์ง€๊ณ  ํŠน์ •ํ•œ ํ›„์† ์ฒ˜๋ฆฌ๋ฅผ ์ง„ํ–‰ํ•˜๋Š” ํ˜•ํƒœ์ด๋‹ค.

(์ฝ”๋“œ ์ƒ๋žต)

 

 

3. ํ•ฉ์„ฑ ์œ„์ž„

๋‹ค์ˆ˜์˜ ํ•จ์ˆ˜๋ฅผ ํ•˜๋‚˜์˜ ์œ„์ž„์— ์ง€์ •ํ•  ์ˆ˜ ์žˆ๋‹ค.

์ด ๊ธฐ๋Šฅ์€ ๋‹ค์ˆ˜์˜ ๊ณต์šฉ ํ•จ์ˆ˜๋ฅผ ์—ฐ๊ฒฐํ•ด ์‹คํ–‰ํ•˜๋ ค๊ณ  ํ•  ๋–„ ๋งค์šฐ ์œ ์šฉํ•˜๋‹ค.

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

public class DeleTest : MonoBehaviour
{
        //WorkerManager์œ„์ž„
        delegate void MyDelegateHook();
        MyDelegateHook ActionTodo;
        public string WorkerType = "Peon";

        //์‹œ์ž‘ํ•  ๋•Œ ์›Œ์ปค์—๊ฒŒ ์ž‘์—…์„ ํ• ๋‹นํ•œ๋‹ค
        void Start()
        {
            //์ง์›์€ ํ• ์ผ์ด ๋งŽ๋‹ค
            if(WorkerType == "Peon")
            {
                ActionTodo += DoJob1;
                ActionTodo += DoJob2;
            }
            //๊ทธ ์™ธ ๋‚˜๋จธ์ง€๋Š” ๋‹ค๋ฅธ ์ผ์„ ํ•œ๋‹ค
            else
            {
                ActionTodo += DoJob3;
            }
        }

        //์—…๋ฐ์ดํŠธ์—์„œ ActionToDo์— ์ง€์ •๋œ ์ผ์„ ์ˆ˜ํ–‰ํ•œ๋‹ค
        void Update()
        {
            ActionTodo();
        }

        void DoJob1()
        {
            Debug.Log("์ผ์ •๊ฒ€ํ† ");
        }
        void DoJob2()
        {
            Debug.Log("์„œ๋ฅ˜์ œ์ถœ");
        }
        void DoJob3()
        {
            Debug.Log("๋ชฐ๋ž˜ ๋ชจ๋ฐ”์ผ๊ฒŒ์ž„!");
        }
    }
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