EditorGUILayout.BeginToggleGroup 开始开关组

// C# Example
// Simple script that lets you align GameObjects
// position/rotation/scale wise with the selected active transform
//对齐选择变换的位置/旋转/缩放。
using UnityEngine;
using UnityEditor;

public class Aligner : EditorWindow {
	bool[] pos = new bool[3] { true, true, true };
	bool[] rot = new bool[3] { true, true, true };
	bool[] scale = new bool[3] { true, true, true };

	bool posGroupEnabled = true;
	bool rotGroupEnabled = true;
	bool scaleGroupEnabled = false;

	void OnGUI() {
		posGroupEnabled = EditorGUILayout.BeginToggleGroup("Align position", posGroupEnabled);
		pos[0] = EditorGUILayout.Toggle("x", pos[0]);
		pos[1] = EditorGUILayout.Toggle("y", pos[1]);
		pos[2] = EditorGUILayout.Toggle("z", pos[2]);
		EditorGUILayout.EndToggleGroup();

		rotGroupEnabled = EditorGUILayout.BeginToggleGroup("Align rotation", rotGroupEnabled);
		rot[0] = EditorGUILayout.Toggle("x", rot[0]);
		rot[1] = EditorGUILayout.Toggle("y", rot[1]);
		rot[2] = EditorGUILayout.Toggle("z", rot[2]);
		EditorGUILayout.EndToggleGroup();

		scaleGroupEnabled = EditorGUILayout.BeginToggleGroup("Align scale", scaleGroupEnabled);
		scale[0] = EditorGUILayout.Toggle("x", scale[0]);
		scale[1] = EditorGUILayout.Toggle("y", scale[1]);
		scale[2] = EditorGUILayout.Toggle("z", scale[2]);
		EditorGUILayout.EndToggleGroup();

		GUILayout.Space(30);
		if (GUILayout.Button("Align!"))
			Align();
	}

	void Align() {
		Transform[] transforms = Selection.transforms;
		Transform activeTransform = Selection.activeTransform;
		if (transforms.Length < 2) {
			Debug.LogWarning("Aligner: select at least two objects.");
			return;
		}
		for (int i = 0; i < transforms.Length; i++) {
			if (posGroupEnabled) {
				Vector3 newPos;
				newPos.x = pos[0] ?
					activeTransform.position.x : transforms[i].position.x;
				newPos.y = pos[1] ?
					activeTransform.position.y : transforms[i].position.y;
				newPos.z = pos[2] ?
					activeTransform.position.z : transforms[i].position.z;
				transforms[i].position = newPos;
			}
			if (rotGroupEnabled) {
				Vector3 newRot;
				newRot.x = rot[0] ?
					activeTransform.rotation.eulerAngles.x : transforms[i].rotation.eulerAngles.x;
				newRot.y = rot[1] ?
					activeTransform.rotation.eulerAngles.y : transforms[i].rotation.eulerAngles.y;
				newRot.z = rot[2] ?
					activeTransform.rotation.eulerAngles.z : transforms[i].rotation.eulerAngles.z;
				transforms[i].rotation = Quaternion.Euler(newRot);
			}
			if (scaleGroupEnabled) {
				Vector3 newScale;
				newScale.x = scale[0] ?
					activeTransform.localScale.x : transforms[i].localScale.x;
				newScale.y = scale[1] ?
					activeTransform.localScale.y : transforms[i].localScale.y;
				newScale.z = scale[2] ?
					activeTransform.localScale.z : transforms[i].localScale.z;
				transforms[i].localScale = newScale;
			}
		}
	}

	[MenuItem("Examples/Position-Rotation-Scale Aligner")]
	static void Init() {
		Aligner window = (Aligner)EditorWindow.GetWindow(typeof(Aligner));
		window.Show();
	}
}