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Newbie Unity3D/C# developer here.
I've tried learning Unity3D during my May/June college vacation and came across a problem:

Code 1:

CameraObj returnVoid;

void Start () 
{
    returnVoid = GameObject.Find ("Main Camera").GetComponent<CameraObj> ();
    returnVoid.ComponentType ();
}


Code 2: 

GameObject returnDirectLight;

void Start () 
{
    returnDirectLight = GameObject.Find ("Directional Light");
    Debug.Log (returnDirectLight.GetComponent<DRLight>().directionString);
}


CameraObj is my custom component.
As far as I know, GetComponent is actually a public method. I understand the logic behind Code 2. What I fail to understand is Code 1. How does GetComponent become a static function here? Does it become abstract in my CameraObj class?

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That's not using GetComponent() on the class GameObject, it's using GetComponent() on the result of GameObject.Find()

GameObject.Find() is a static function, but it returns a specific object. Note that Code 2 is also using GameObject.Find() but then you store the result object in a variable. Code 1 uses the exact same functions but doesn't store the result of GameObject.Find() that's the only difference.

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  • \$\begingroup\$ So why can't I use returnDirectLight = GameObject.Find ("Directional Light").GetComponent<DRLight> (); instead of using returnDirectLight = GameObject.Find ("Directional Light"); in code 2? That's where my confusion lies \$\endgroup\$ Commented May 24, 2015 at 7:57
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    \$\begingroup\$ Because returnDirectLight is a gameObject, not a component. Make returnDirectLight a DRLight and it will work. \$\endgroup\$ Commented May 24, 2015 at 11:57
  • \$\begingroup\$ Additional clarification: a GameObject is a type of object that is simply a container for a bunch of components. GameObject.Find() returns a GameObject instance, not the components contained by that GameObject. \$\endgroup\$ Commented May 25, 2015 at 0:57

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