koobas.hobune.stream
Remove GameObject From Array if it already exists?
This one has been stumping me for a while now. Essentially, I have a script setup that Creates a new GameObject Array for every letter typed into a string. The problem I having now is that every time I type something the GameObject gets added too and KEEPS the original GameObject. So for example... if I type "hi". The "h" will be created twice and the "i" once.
I only want to create the "h" once... so my idea was to delete the object if it exists before instantiating it again. I should note that if I delete the string entirely, the object still remains, so I'm hoping his solves that issue as well. Here is what I have so far in the update() function.
byte[] ASCIIBytes = Encoding.ASCII.GetBytes(test);
float po = 0;
foreach (byte b in ASCIIBytes)
{
Debug.Log(test);
// check if certain "letter" already exists, if it does..
// delete it before creating it again
Instantiate(testObj[b], new Vector3(po, 0, 0), Quaternion.Euler(270, -180, 0));
po += kerning;
testObj[b].transform.tag = "Word";
}
Any help or advice would greatly appreciated. Thank you!
You are correct, I don't understand gameobject array too well. I think I know what are you are saying though. How would I create an array element in this example? Would this allow me to create "one" gameobject in the scene with several subobjects?
Yes that would happen! You will need to delete all of the letters you created before. When you instantiate them add them to a List<GameObject> and the next time - delete all the existing ones before creating the new ones.
Thanks for the response $$anonymous$$ike! I think I understand what are suggesting. I just have never used List<> before. How would I add the gameObjects to a List?
Would something like this work?
List<GameObject> temp = new List<GameObject>(b);
You would create the list as a private variable of the class:
List<GameObject> currentLetters = new List<GameObject>();
You would add them as you instantiate them:
currentLetters.Add(Instantiate(testObj[b]...));
But before you created the new ones you would do:
foreach(var letter in currentLetters)
Destroy(letter);
currentLetters.Clear();
Now this all presumes that testObj[] is an array of GameObjects - it it's something else then you would need to get the gameObject from it. Eg. testObj[] is an array of Transform then:
currentLetters.Add((Instantiate(...) as Transform).gameObject);
There info on using Lists here
Thanks so much $$anonymous$$ike!!
I was able to use this
currentLetters.Add((Instantiate(testObj[b], new Vector3(po, 0, 0), Quaternion.Euler(270, -180, 0)) as GameObject));
and it did the trick perfectly! In combination with your suggested foreach code.
=)
