TupleTest.cs

using UnityEngine;

sealed class Test : MonoBehaviour
{
    float life;

    void Test1()
    {
        (float, int) attack = (3.5f, 8);
        life -= attack.Item1 * attack.Item2;
    }

    void Test2()
    {
        (float power, int count) attack = (3.5f, 8);
        life -= attack.power * attack.count;
    }

    void Test3()
    {
        var (power, count) = (3.5f, 8);
        life -= power * count;
    }

    void Test4()
    {
        var attack = (power: 3.5f, count: 8);
        life -= attack.power * attack.count;
    }

    bool CheckCollision(Vector3 c, float r, out Vector3 point)
    {
        point = Vector3.zero;
        return true;
    }

    (bool hit, Vector3 point) CheckCollision(Vector3 c, float r)
    {
        return (true, c);
    }

    struct Data { public bool hit; public Vector3 point; }

    bool Test5()
    {
        Data obj1, obj2;
        (obj1.hit, obj2.point) = CheckCollision(Vector3.zero, 1);
        return obj1.hit;
    }

    bool Test6()
    {
        var (hit, _) = CheckCollision(Vector3.zero, 1);
        return hit;
    }

    void Swap1(ref int a, ref int b)
    {
        var temp = a;
        a = b;
        b = a;
    }

    void Swap2(ref int a, ref int b)
    {
        (a, b) = (b, a);
    }

    void Start()
    {
    }
}