如何在统一 2d 中创建随机生成器？

Question

I am making a game in Unity2D i which you have to match the correct projectiles with the enemies but I can't randomly spawn them, it just spawns one... (btw this is my first game)

   {
       timeBTWSpawn = StartTimeBTWSpawn;

       private void Update()
   {

       if(timeBTWSpawn <= 0 )
       {
           rand = Random.Range(0, enemies.Length);
           Instantiate(enemies[0], SpawnPoint.transform.position, Quaternion.identity);```
           timeBTWSpawn = StartTimeBTWSpawn;
       }
       else
       {
           timeBTWSpawn -= Time.deltaTime;
       }
   }
}

i expect 3 different enemies to be randomly spawned but it only spawns the first one in the array.

Answer 1

there is one minor mistake. You are not actually using "rand" variable inside the instantiate method. having 0 in the index will always spawn the first element inside enemies array.it should be like this:

Code:

       Instantiate(enemies[rand], SpawnPoint.transform.position, Quaternion.identity);

this will fix:)