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CrowdControl/Assets/Feel/MMTools/Tools/MMExtensions/MMBoundsExtensions.cs

111 lines
3.3 KiB
C#

using UnityEngine;
using System.Collections;
namespace MoreMountains.Tools
{
/// <summary>
/// Bounds helpers
/// </summary>
public class MMBoundsExtensions : MonoBehaviour
{
/// <summary>
/// Returns a random point within the bounds set as parameter
/// </summary>
/// <param name="bounds"></param>
/// <returns></returns>
public static Vector3 MMRandomPointInBounds(Bounds bounds)
{
return new Vector3(
Random.Range(bounds.min.x, bounds.max.x),
Random.Range(bounds.min.y, bounds.max.y),
Random.Range(bounds.min.z, bounds.max.z)
);
}
/// <summary>
/// Gets collider bounds for an object (from Collider2D)
/// </summary>
/// <param name="theObject"></param>
/// <returns></returns>
public static Bounds GetColliderBounds(GameObject theObject)
{
Bounds returnBounds;
// if the object has a collider at root level, we base our calculations on that
if (theObject.GetComponent<Collider>()!=null)
{
returnBounds = theObject.GetComponent<Collider>().bounds;
return returnBounds;
}
// if the object has a collider2D at root level, we base our calculations on that
if (theObject.GetComponent<Collider2D>()!=null)
{
returnBounds = theObject.GetComponent<Collider2D>().bounds;
return returnBounds;
}
// if the object contains at least one Collider we'll add all its children's Colliders bounds
if (theObject.GetComponentInChildren<Collider>()!=null)
{
Bounds totalBounds = theObject.GetComponentInChildren<Collider>().bounds;
Collider[] colliders = theObject.GetComponentsInChildren<Collider>();
foreach (Collider col in colliders)
{
totalBounds.Encapsulate(col.bounds);
}
returnBounds = totalBounds;
return returnBounds;
}
// if the object contains at least one Collider2D we'll add all its children's Collider2Ds bounds
if (theObject.GetComponentInChildren<Collider2D>()!=null)
{
Bounds totalBounds = theObject.GetComponentInChildren<Collider2D>().bounds;
Collider2D[] colliders = theObject.GetComponentsInChildren<Collider2D>();
foreach (Collider2D col in colliders)
{
totalBounds.Encapsulate(col.bounds);
}
returnBounds = totalBounds;
return returnBounds;
}
returnBounds = new Bounds(Vector3.zero, Vector3.zero);
return returnBounds;
}
/// <summary>
/// Gets bounds of a renderer
/// </summary>
/// <param name="theObject"></param>
/// <returns></returns>
public static Bounds GetRendererBounds(GameObject theObject)
{
Bounds returnBounds;
// if the object has a renderer at root level, we base our calculations on that
if (theObject.GetComponent<Renderer>()!=null)
{
returnBounds = theObject.GetComponent<Renderer>().bounds;
return returnBounds;
}
// if the object contains at least one renderer we'll add all its children's renderer bounds
if (theObject.GetComponentInChildren<Renderer>()!=null)
{
Bounds totalBounds = theObject.GetComponentInChildren<Renderer>().bounds;
Renderer[] renderers = theObject.GetComponentsInChildren<Renderer>();
foreach (Renderer renderer in renderers)
{
totalBounds.Encapsulate(renderer.bounds);
}
returnBounds = totalBounds;
return returnBounds;
}
returnBounds = new Bounds(Vector3.zero, Vector3.zero);
return returnBounds;
}
}
}