TriggerMarker.cs

#region [Copyright (c) 2018 Cristian Alexandru Geambasu]
//	Distributed under the terms of an MIT-style license:
//
//	The MIT License
//
//	Copyright (c) 2018 Cristian Alexandru Geambasu
//
//	Permission is hereby granted, free of charge, to any person obtaining a copy of this software 
//	and associated documentation files (the "Software"), to deal in the Software without restriction, 
//	including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, 
//	and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, 
//	subject to the following conditions:
//
//	The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
//
//	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, 
//	INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR 
//	PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE 
//	FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 
//	ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#endregion
using UnityEngine;

public class TriggerMarker : MonoBehaviour
{
	[SerializeField]
	private Color m_color;
	[SerializeField]
	public bool m_drawGizmo;
	[SerializeField]
	public bool m_drawSolidGizmo;

	private void Reset()
	{
		m_color = new Color32(229, 102, 223, 122);
		m_drawGizmo = true;
		m_drawSolidGizmo = true;
	}

	private void OnDrawGizmos()
	{
		if(m_drawGizmo)
		{
			BoxCollider boxCollider = GetComponent<BoxCollider>();
			SphereCollider sphereCollider = GetComponent<SphereCollider>();

			if(boxCollider != null)
				DrawBoxTriggerMarker(boxCollider);
			if(sphereCollider != null)
				DrawSphereTriggerMarker(sphereCollider);
		}
	}

	private void DrawBoxTriggerMarker(BoxCollider collider)
	{
		Color color = Gizmos.color;
		Matrix4x4 matrix = Gizmos.matrix;

		Gizmos.color = m_color;
		Gizmos.matrix = transform.localToWorldMatrix;

		if(m_drawSolidGizmo)
			Gizmos.DrawCube(collider.center, collider.size);
		else
			Gizmos.DrawWireCube(collider.center, collider.size);

		Gizmos.color = color;
		Gizmos.matrix = matrix;
	}

	private void DrawSphereTriggerMarker(SphereCollider collider)
	{
		Color color = Gizmos.color;
		Matrix4x4 matrix = Gizmos.matrix;

		Gizmos.color = m_color;
		Gizmos.matrix = transform.localToWorldMatrix;

		if(m_drawSolidGizmo)
			Gizmos.DrawSphere(collider.center, collider.radius);
		else
			Gizmos.DrawWireSphere(collider.center, collider.radius);

		Gizmos.color = color;
		Gizmos.matrix = matrix;
	}
}