实例化一定数量的预制件，统一C＃

Question

I wondered how i can instantiate a certain amount of prefabs c#.

ex:

if(Input.GetKeyDown(KeyCode.K))
{
//Instantiate 20 prefabs
}

Answer 1

When the button is pressed, run a loop that loops until the Space value -1 is reached then instantiate a prefab each time in the loop. This should be done in the Update function. It shouldn't keep instantiating if you do this correctly.

int Space = 20;
public GameObject prefab;

void Update()
{
    if (Input.GetKeyDown(KeyCode.K))
    {
        //Instantiate 20 prefabs
        for (int i = 0; i < Space; i++)
        {
            GameObject obj = Instantiate(prefab);
            obj.transform.position = new Vector3(0, 0, 0);
        }
    }
}

Answer 2

I would create a simple method with a single integer parameter, allowing for you to specify how many enemies you would like to create. You are most likely going to need to handle their position with some other logic, unless it is being handled within the inventory slot object itself.

public GameObject enemyPrefab;

//runs every frame, to check for the key press in this case
public void Update ()
{
    //did we press the specified key? (C)
    if (Input.GetKeyDown(KeyCode.C))
    {
        //call our method to create our enemies!
        CreateEnemies(20);
    }
}    

public void CreateEnemies (int enemies)
{
    //the amount of enemies we want to have
    //run through this loop until we hit the amount of enemies we want
    for (int i = 0; i < enemies; i++)
    {
        //create the new enemy based on the provided prefab
        Instantiate(enemyPrefab, Vector3.zero, Quaternion.identity);
    }
}