Unity3D使用陀螺仪控制节点旋转

本文实例为大家分享了Unity3D陀螺仪控制节点旋转的具体代码，供大家参考，具体内容如下

/********************************************************************
Desc:  陀螺仪对相机的逻辑类。
*********************************************************************/

using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Text;

using UnityEngine;

namespace Game.Gyro
{

/// <summary>
/// 职责:
///  1.实现陀螺仪对相机的影响和操作；
///  2.尽量重现崩坏3的主界面驾驶舱效果；
/// </summary>
class GyroCamera : MonoBehaviour
{

#region 声明

/// <summary> 陀螺仪的输入类型 </summary>
public enum EGyroInputType
{
/// <summary> RotateRate </summary>
RotateRate,

/// <summary> RotateRateUniased </summary>
RotateRateUniased,

/// <summary> UserAcceleration </summary>
UserAcceleration,
}

#endregion

#region 控制变量

public float m_gyro_max_x = 15.0f;

public float m_gyro_max_y = 15.0f;

public float m_gyro_max_z = 15.0f;

#endregion

#region 变量

/// <summary> editor开发环境下的模拟陀螺仪输入 </summary>
public Vector3 m_editor_debug_input = Vector3.zero;

/// <summary> 陀螺仪的输入参数，用以控制相机 </summary>
public Vector3 m_gyro_input = Vector3.zero;

/// <summary> 当前的摄像机角度 </summary>
public Vector3 m_cur_euler = Vector3.zero;

/// <summary> 陀螺仪数据的更新频率 </summary>
public int m_upate_rate = 30;

/// <summary> 当前陀螺仪的输入输入类型 </summary>
public EGyroInputType m_gyro_input_type = EGyroInputType.RotateRate;

/// <summary> 陀螺仪的系数 </summary>
public float m_gyro_factor = 1.0f;

private Vector3 m_camera_init_euler = Vector3.zero;
private Transform mTransform;
#endregion

#region 访问接口

/// <summary> 陀螺仪的输入参数，用以控制相机 </summary>
protected Vector3 GyroInput
{
get
{
return m_gyro_input;
}
set
{
m_gyro_input = value;
}
}

/// <summary> 陀螺仪输入数据的类型 </summary>
protected EGyroInputType GyroInputType
{
get
{
return m_gyro_input_type;
}
set
{
m_gyro_input_type = value;
}
}

/// <summary> 陀螺仪的系数 </summary>
protected float GyroFactor
{
get
{
return m_gyro_factor;
}
set
{
m_gyro_factor = value;
}
}

/// <summary> 当前的旋转角 </summary>
protected Vector3 CurEuler
{
get
{
return m_cur_euler;
}
set
{
m_cur_euler = value;
}
}

#endregion

#region Unity

// Use this for initialization
void Start()
{
Input.gyro.enabled = true;

mTransform = gameObject.transform;
CurEuler = mTransform.localEulerAngles;
m_camera_init_euler = CurEuler;
}

/// <summary> 绘制UI，方便调试 </summary>
void OnGUI()
{
//GUI.Label(GetRect(0.1f, 0.05f), "Attitude: " + Input.gyro.attitude);

//GUI.Label(GetRect(0.1f, 0.15f), "Rotation: " + Input.gyro.rotationRate);

//GUI.Label(GetRect(0.1f, 0.25f), "RotationUnbiased: " + Input.gyro.rotationRateUnbiased);

//GUI.Label(GetRect(0.1f, 0.35f), "UserAcceleration: " + Input.gyro.userAcceleration);

//// 陀螺仪的系数
//{
// string t_factor_str = GUI.TextField(GetRect(0.7f, 0.05f), "" + GyroFactor);

// GyroFactor = float.Parse(t_factor_str);
//}

//// 陀螺仪输入参数
//{
// if (GUI.Button(GetRect(0.8f, 0.8f, 0.2f), "" + GyroInputType))
// {
//  switch (GyroInputType)
//  {
//   case EGyroInputType.RotateRate:
//    GyroInputType = EGyroInputType.RotateRateUniased;
//    break;

//   case EGyroInputType.RotateRateUniased:
//    GyroInputType = EGyroInputType.UserAcceleration;
//    break;

//   case EGyroInputType.UserAcceleration:
//    GyroInputType = EGyroInputType.RotateRate;
//    break;
//  }
// }
//}
}

// Update is called once per frame
void Update()
{
// 设置陀螺仪更新频率
Input.gyro.updateInterval = 1.0f / m_upate_rate;

// 根据陀螺仪计算相机的控制数据
UpdateGyro();

// Editor下的调试
#if UNITY_EDITOR
// 开发环境下不能用陀螺仪，模拟数据
GyroInput = m_editor_debug_input;
#endif

// 因值不确定范围，需增加系数控制
GyroInput = GyroInput * GyroFactor;

// 根据控制数据，对相机进行操作和变化
UpdateCamera();
}

#endregion

#region 控制逻辑

/// <summary> 更新陀螺仪数据，并计算出相应的控制数据 </summary>
protected void UpdateGyro()
{
// 更新陀螺仪数据，并计算出控制变量
switch (GyroInputType)
{ //手机上左倾斜x是负值，又倾斜x是正值。上倾斜y是负值，下倾斜y是正值
case EGyroInputType.RotateRate:
GyroInput = Input.gyro.rotationRate;
break;

case EGyroInputType.RotateRateUniased:
GyroInput = Input.gyro.rotationRateUnbiased;
break;

case EGyroInputType.UserAcceleration:
GyroInput = Input.gyro.userAcceleration;
break;

default:
Debug.LogError("GyroInputTypeNot defined: " + GyroInputType);
break;
}
}

/// <summary> 更新相机的行为 </summary>
protected void UpdateCamera()
{
// 不需要gyro的z参数
#if UNITY_EDITOR
Vector3 t_gyro_input = new Vector3(GyroInput.x, GyroInput.y, GyroInput.z);
#else
Vector3 t_gyro_input = new Vector3(0.0f, GyroInput.y, GyroInput.x);
#endif

CurEuler += t_gyro_input;

// 范围控制
{
float t_x = ClampFloat(CurEuler.x, m_camera_init_euler.x, m_gyro_max_x);

float t_y = ClampFloat(CurEuler.y, m_camera_init_euler.y, m_gyro_max_y);

float t_z = ClampFloat(CurEuler.z, m_camera_init_euler.z, m_gyro_max_z);

CurEuler = new Vector3(t_x, t_y, t_z);
}

mTransform.localEulerAngles = CurEuler;
}

#endregion

#region 支持函数

protected float ClampFloat(float p_float, float p_init, float p_offset)
{
p_offset = Mathf.Abs(p_offset);

if (p_float > p_init + p_offset)
{
p_float = p_init + p_offset;
}

if (p_float < p_init - p_offset)
{
p_float = p_init - p_offset;
}

return p_float;
}

/// <summary> 根据百分比获取gui的大概坐标 </summary>
protected Rect GetRect(float p_x_percent, float p_y_percent, float p_w = 0.5f, float p_h = 0.1f)
{
return new Rect(
Screen.width * p_x_percent, Screen.height * p_y_percent,
Screen.width * p_w, Screen.height * p_h);
}

#endregion

}

}

将脚本挂在想被陀螺仪操控的节点上就ok了。

以上就是本文的全部内容，希望对大家的学习有所帮助

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