(JeanShaw)Unity中常用的GameObject辅助类

版权声明:本文为博主原创文章,未经博主允许不得转载。 https://blog.csdn.net/JeanShaw/article/details/82801607

通过GameObject的名字查找方法,传入查找的对象与名字,不管是父集还是子集,都可以使用

public static GameObject FindGameObjectByName(GameObject obj,string name)
	{
		if(obj == null)
			return null;
		GameObject findObj = null;
		if(obj.name == name)
		{
			findObj = obj;
			return findObj;
		}
		
		for(int i = 0; i < obj.transform.childCount; ++i)
		{
			findObj = FindGameObjectByName(obj.transform.GetChild(i).gameObject,name);
			if(findObj != null)
			{
				return findObj;
			}
		}
		return null;
	}

设置对象包括对象子集的层级的方法

​
​
public static void SetGameObjectLayer(GameObject obj,int layer)
	{
		if(obj == null)
			return;
		obj.layer = layer;
		for(int i = 0; i < obj.transform.childCount; ++i)
		{
			SetGameObjectLayer(obj.transform.GetChild(i).gameObject,layer);
		}
	}
​

设置对象是否显示的方法

public static void SetGameObjectRenderState(GameObject obj,bool b)
	{
		if(obj == null)
			return;
		obj.GetComponent<Renderer>().enabled = b;
		for(int i = 0; i < obj.transform.childCount;++i)
		{
			SetGameObjectRenderState(obj.transform.GetChild(i).gameObject,b);		
		}
	}

对象的本地坐标与世界坐标相互转换的方法  

​
public static Vector3 LocalPosToWorldPosForGameObject(GameObject obj,Vector3 pos)
	{
		Vector3 worldPos = pos;
		if(obj.transform.parent != null)
		{
			worldPos.x = obj.transform.parent.localPosition.x + worldPos.x*obj.transform.parent.localScale.x;
			worldPos.y = obj.transform.parent.localPosition.y + worldPos.y*obj.transform.parent.localScale.y;
			worldPos.z = obj.transform.parent.localPosition.z + worldPos.z*obj.transform.parent.localScale.z;
			worldPos = LocalPosToWorldPosForGameObject(obj.transform.parent.gameObject,worldPos);
		}
		return worldPos;
	}

​public static Vector3 WorldPosToLocalPosForGameObject(Camera mainCamera,Camera NGUICamera, Vector3 pos)
	{
		Vector2 screenPos = mainCamera.WorldToScreenPoint(pos);
		Vector3 loaclPos = NGUICamera.ScreenToWorldPoint(screenPos);
		return loaclPos;
	}

 删除所有子集对象的方法 

public static void DestroyGameObjectAllChildrens(GameObject obj)
	{
		if(obj == null)
		{
			return;
		}
		if(obj.transform.childCount == 0)
		{
			return;
		}
		int count = obj.transform.childCount;
		for(int i = 0; i < count;++i)
		{
			GameObject child = obj.transform.GetChild(i).gameObject;
			if(child != null)
			{
				GameObject.DestroyImmediate(child);
			}
		}
	}

修改对象的父集方法 

public static void GameObjectAttachToParent(GameObject obj,GameObject parentObj,bool useSelfScale = false)
	{
		float selfScaleX = obj.transform.localScale.x;
		float selfScaleY = obj.transform.localScale.y;
		float selfScaleZ = obj.transform.localScale.z;
		obj.transform.parent = parentObj.transform;
		obj.transform.localPosition = Vector3.zero;
		obj.transform.localRotation = Quaternion.identity;
		if(!useSelfScale)
		{
			obj.transform.localScale = new Vector3(1,1,1);
		}
		else
		{
			obj.transform.localScale = new Vector3(selfScaleX,selfScaleY,selfScaleZ);
		}
		obj.layer = parentObj.layer;
	}

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转载自blog.csdn.net/JeanShaw/article/details/82801607
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