Collecting data from children

Unity Engine
1

(using C#)
So I have a class IcarusBaseObject with a variable uint Health;

How would I retrieve the Health of all children who have an IcarusBaseObject?

2 
foreach (IcarusBaseObject ibo in GetComponentsInChildren(typeof(IcarusBaseObject))) {
    Debug.Log(ibo.Health);
}

Note that it’ll also print the Health of object the script this is attached to, if it has IcarusBaseObject. You can ignore that by something like…

if (ibo.gameObject != gameObject)
…

Cheers,
-Jon

3

First create a property for your health in the IcarusBaseObject script:

private uint health;

public uint Health
{
   get { return health; }
   set { health = value; } //if you also need a set
}

Now get and reference to all gameObjects with a IcarusBaseObject script:

Component[] icarusBaseArray;
icarusBaseArray = gameObject.GetComponentsInChildren( typeof(IcarusBaseObject) ) as Component[];

Then run through the array in the parent:

foreach ( IcarusBaseObject icarusBase in icarusBaseArray )
{
   uint retrievedHealth = icarusBase.Health;
   // do something with retrievedHealth...
}

EDIT: Harrr… Jonathan was faster… :slight_smile:

4

ahh, I see what I did wrong. I needed to do typeof(IcarusBaseObject)

By the way, ALL THESE REFERENCES TO ICARUS ARE JUST COINCIDENCES I SWEAR :wink:

5

My solution. Should give me what I want. Recursion is scary.

public uint getTotalHealth()
	{
		uint tHealth = getHealth();
		Component[] AllHealths = GetComponentsInChildren(typeof(IcarusBaseObject));	
		foreach(IcarusBaseObject x in AllHealths)
		{
			// don't include ourselves, or we infinitely recurse
			if(x.gameObject != gameObject)
				tHealth+=x.getTotalHealth();
		}
		return tHealth;
	}