koobas.hobune.stream
Making a GetComponent array
I am working on a projectile manager for my 2D space shooter iPhone game. And im trying at the start off the level make a array with all the ProjectileController script that is attached to the projectile gameobjects. But i get a NullReferenceException error on the line in the second for loop. How can i make this function work? Or is there a better way of achiving what im trying to do?
private var maxNumProjectiles : int = 100; private var projectilesArray : ProjectileController[];
function InitializeProjectiles() // Initializes all the projectiles and adds their ProjectileController script to the projectilesArray { for(i=0; i<maxNumProjectiles; i++) { var clone : GameObject; clone = Instantiate(projectilePrefab, projectileIntPosition, Quaternion.identity); }
var tempArray : GameObject[] = GameObject.FindGameObjectsWithTag("Projectile");
for(i=0; i<maxNumProjectiles; i++) { projectilesArray[i] = tempArray[i].GetComponent("ProjectileController"); } }
There isn't any more code concerning the array then what i posted here, so i guess not. How do i do initialize it?
It looks like the projectilesArray is not initialized to anything, so when you try to access the i'th element it doesn't like that.
Also, you can use the "clone" return value to get the component right there, e.g.
private var maxNumProjectiles : int = 100; private var projectilesArray : ProjectileController[];
function InitializeProjectiles() // Initializes all the projectiles and adds their ProjectileController script to the projectilesArray { projectilesArray = new ProjectileController[maxNumProjectiles]; for(i=0; i<maxNumProjectiles; i++) { var clone : GameObject; clone = Instantiate(projectilePrefab, projectileIntPosition, Quaternion.identity); projectilesArray[i] = clone.GetComponent("ProjectileController"); } }
