72 lines
2.1 KiB
C#
72 lines
2.1 KiB
C#
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// Copyright (c) Pixel Crushers. All rights reserved.
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using UnityEngine;
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using System;
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namespace PixelCrushers
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{
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/// <summary>
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/// Always keeps the GameObject facing the main camera.
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/// </summary>
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[AddComponentMenu("")] // Use wrapper instead.
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public class AlwaysFaceCamera : MonoBehaviour
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{
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[Tooltip("Leave Y rotation untouched.")]
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[SerializeField]
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private bool m_yAxisOnly = false;
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[Tooltip("Flip 180 degrees.")]
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[SerializeField]
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private bool m_rotate180 = false;
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/// <summary>
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/// Set `true` to leave Y rotation untouched.
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/// </summary>
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public bool yAxisOnly
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{
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get { return m_yAxisOnly; }
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set { m_yAxisOnly = value; }
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}
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public bool rotate180
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{
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get { return m_rotate180; }
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set { m_rotate180 = value; }
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}
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private Camera m_mainCamera = null;
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private void Update()
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{
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if (m_mainCamera == null || !m_mainCamera.enabled || !m_mainCamera.gameObject.activeInHierarchy) m_mainCamera = Camera.main;
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if (m_mainCamera == null || !m_mainCamera.enabled || !m_mainCamera.gameObject.activeInHierarchy) return;
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if (rotate180)
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{
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if (yAxisOnly)
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{
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transform.rotation = Quaternion.Euler(transform.rotation.eulerAngles.x, (m_mainCamera.transform.rotation.eulerAngles + 180f * Vector3.up).y, transform.rotation.eulerAngles.z);
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}
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else
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{
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transform.rotation = Quaternion.LookRotation(-m_mainCamera.transform.forward, m_mainCamera.transform.up);
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}
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}
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else
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{
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if (yAxisOnly)
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{
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transform.rotation = Quaternion.Euler(transform.rotation.eulerAngles.x, m_mainCamera.transform.rotation.eulerAngles.y, transform.rotation.eulerAngles.z);
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}
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else
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{
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transform.rotation = m_mainCamera.transform.rotation;
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}
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}
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}
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}
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}
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