Gets screen bounds based on camera.

NaplandCamera.cs

using UnityEngine;
using System.Collections;


[RequireComponent(typeof(Camera))]
public class NaplandCamera : MonoBehaviour {

#pragma warning disable 0414
	public static float minX;
	public static float maxX;
	public static float minY;
	public static float maxY;

	// Use this for initialization
	void Awake () {
        UpdateValues();
	}


    public static void UpdateValues()
    {
        float vertExtent = Camera.main.camera.orthographicSize;
        float horzExtent = vertExtent * Screen.width / Screen.height;
        minX = -horzExtent;
        maxX = horzExtent;
        minY = -vertExtent;
        maxY = vertExtent;
    }

#pragma warning restore 0414


	void OnGUI()
	{
		//For debugging screen bounds
		/*
		char nl = (char) 10;
		string label = "minX: " + minX.ToString() + nl + "maxX: " + maxX.ToString() + nl + "minY: " + minY.ToString() + nl + "maxY: " + maxY.ToString(); 
		GUI.Label(new Rect(0,0,200,200), label);
		*/
	}

	public virtual void OnDrawGizmos() {
		Matrix4x4 temp = Gizmos.matrix;
		Gizmos.matrix = Matrix4x4.TRS(transform.position, transform.rotation, Vector3.one);
		if (GetComponent<Camera>().orthographic) {
			float spread = GetComponent<Camera>().farClipPlane - GetComponent<Camera>().nearClipPlane;
			float center = (GetComponent<Camera>().farClipPlane + GetComponent<Camera>().nearClipPlane)*0.5f;
			Gizmos.color = Color.yellow;
			Gizmos.DrawWireCube(new Vector3(0,0,center), new Vector3(GetComponent<Camera>().orthographicSize*2*GetComponent<Camera>().aspect, GetComponent<Camera>().orthographicSize*2, spread));
		} else {
			Gizmos.DrawFrustum(Vector3.zero, GetComponent<Camera>().fieldOfView, GetComponent<Camera>().farClipPlane, GetComponent<Camera>().nearClipPlane, GetComponent<Camera>().aspect);
		}
		Gizmos.matrix = temp;
	}
}