Unityの3Dゲームでjoystickを使って視点変更をしたいです

UnityでJoystickを使って視点変更を行いたいのですがうまくいきません。joystickを左下と右下に二つ作って、片方で移動、片方で視点変更という風にしたいです。移動の方はすでにできているのですが、視点が変えられないので横に曲がったりができません。(FPSが移動用のスクリプトです。StandardAssetsのコードを少し変えたものなので、無駄が多いと思います。すみません。主にvoid Updateのところを追加しました。視点変更用のスクリプトはFPSとほとんど変わらないので省きます。また、Jumpボタンはまだ未実装です)

FPS
1using System;
2using UnityEngine;
3using System.Collections;
4using UnityStandardAssets.CrossPlatformInput;
5using UnityStandardAssets.Utility;
6using Random = UnityEngine.Random;
7
8
9namespace UnityStandardAssets.Characters.FirstPerson
10{
11    [RequireComponent(typeof (CharacterController))]
12    [RequireComponent(typeof (AudioSource))]
13
14public class FPS : MonoBehaviour {
15
16	[SerializeField] private bool m_IsWalking;
17        [SerializeField] [Range(0f, 1f)] private float m_RunstepLenghten;
18        [SerializeField] private float m_JumpSpeed;
19        [SerializeField] private float m_StickToGroundForce;
20        [SerializeField] private float m_GravityMultiplier;
21        
22        [SerializeField] private bool m_UseFovKick;
23        [SerializeField] private FOVKick m_FovKick = new FOVKick();
24        [SerializeField] private bool m_UseHeadBob;
25        [SerializeField] private CurveControlledBob m_HeadBob = new CurveControlledBob();
26        [SerializeField] private LerpControlledBob m_JumpBob = new LerpControlledBob();
27        [SerializeField] private float m_StepInterval;
28        [SerializeField] private AudioClip[] m_FootstepSounds;   
29        [SerializeField] private AudioClip m_JumpSound;           
30        [SerializeField] private AudioClip m_LandSound;           
31
32	//先ほど作成したJoystick
33  [SerializeField]
34  private Joystick _joystick = null;
35
36	private Camera m_Camera;
37        private bool m_Jump;
38        private float m_YRotation;
39        private Vector2 m_Input;
40        private Vector3 m_MoveDir = Vector3.zero;
41        private CharacterController m_CharacterController;
42        private CollisionFlags m_CollisionFlags;
43        private bool m_PreviouslyGrounded;
44        private Vector3 m_OriginalCameraPosition;
45        private float m_StepCycle;
46        private float m_NextStep;
47        private bool m_Jumping;
48        private AudioSource m_AudioSource;
49
50
51  //移動速度
52  private const float SPEED = 0.2f;
53
54	// Use this for initialization
55	void Start () {
56		m_CharacterController = GetComponent<CharacterController>();
57            m_Camera = Camera.main;
58            m_OriginalCameraPosition = m_Camera.transform.localPosition;
59            m_FovKick.Setup(m_Camera);
60            m_HeadBob.Setup(m_Camera, m_StepInterval);
61            m_StepCycle = 0f;
62            m_NextStep = m_StepCycle/2f;
63            m_Jumping = false;
64            m_AudioSource = GetComponent<AudioSource>();
65			
66	}
67	
68	// Update is called once per frame
69	void Update () {
70		
71
72		Vector3 pos = transform.position;
73
74    pos.x += _joystick.Position.x * SPEED;
75    pos.z += _joystick.Position.y * SPEED;
76
77
78
79    transform.position = pos;
80		}
81
82		private void FixedUpdate()
83        {
84       
85            if (m_CharacterController.isGrounded)
86            {
87                m_MoveDir.y = -m_StickToGroundForce;
88
89                if (m_Jump)
90                {
91                    m_MoveDir.y = m_JumpSpeed;
92                    
93                    m_Jump = false;
94                    m_Jumping = true;
95                }
96            }
97            else
98            {
99                m_MoveDir += Physics.gravity*m_GravityMultiplier*Time.fixedDeltaTime;
100            }
101            m_CollisionFlags = m_CharacterController.Move(m_MoveDir*Time.fixedDeltaTime);
102
103        }
104
105
106        private void UpdateCameraPosition(float speed)
107        {
108            Vector3 newCameraPosition;
109            if (!m_UseHeadBob)
110            {
111                return;
112            }
113            if (m_CharacterController.velocity.magnitude > 0 && m_CharacterController.isGrounded)
114            {
115                m_Camera.transform.localPosition =
116                    m_HeadBob.DoHeadBob(m_CharacterController.velocity.magnitude +
117                                      (speed*(m_IsWalking ? 1f : m_RunstepLenghten)));
118                newCameraPosition = m_Camera.transform.localPosition;
119                newCameraPosition.y = m_Camera.transform.localPosition.y - m_JumpBob.Offset();
120            }
121            else
122            {
123                newCameraPosition = m_Camera.transform.localPosition;
124                newCameraPosition.y = m_OriginalCameraPosition.y - m_JumpBob.Offset();
125            }
126            m_Camera.transform.localPosition = newCameraPosition;
127        }
128
129
130        private void GetInput(out float speed)
131        {
132            // Read input
133            float horizontal = CrossPlatformInputManager.GetAxis("Horizontal");
134            float vertical = CrossPlatformInputManager.GetAxis("Vertical");
135
136            bool waswalking = m_IsWalking;
137
138#if !MOBILE_INPUT
139            // On standalone builds, walk/run speed is modified by a key press.
140            // keep track of whether or not the character is walking or running
141            m_IsWalking = !Input.GetKey(KeyCode.LeftShift);
142#endif
143            // set the desired speed to be walking or running
144            speed = m_IsWalking ? m_WalkSpeed : m_RunSpeed;
145            m_Input = new Vector2(horizontal, vertical);
146
147            // normalize input if it exceeds 1 in combined length:
148            if (m_Input.sqrMagnitude > 1)
149            {
150                m_Input.Normalize();
151            }
152
153            // handle speed change to give an fov kick
154            // only if the player is going to a run, is running and the fovkick is to be used
155            if (m_IsWalking != waswalking && m_UseFovKick && m_CharacterController.velocity.sqrMagnitude > 0)
156            {
157                StopAllCoroutines();
158                StartCoroutine(!m_IsWalking ? m_FovKick.FOVKickUp() : m_FovKick.FOVKickDown());
159            }
160        }
161
162        private void OnControllerColliderHit(ControllerColliderHit hit)
163        {
164            Rigidbody body = hit.collider.attachedRigidbody;
165            //dont move the rigidbody if the character is on top of it
166            if (m_CollisionFlags == CollisionFlags.Below)
167            {
168                return;
169            }
170
171            if (body == null || body.isKinematic)
172            {
173                return;
174            }
175            body.AddForceAtPosition(m_CharacterController.velocity*0.1f, hit.point, ForceMode.Impulse);
176        }
177	}
178}

MouseLook
1using System;
2using UnityEngine;
3using UnityStandardAssets.CrossPlatformInput;
4
5namespace UnityStandardAssets.Characters.FirstPerson
6{
7    [Serializable]
8    public class MouseLook
9    {
10        public float XSensitivity = 2f;
11        public float YSensitivity = 2f;
12        public bool clampVerticalRotation = true;
13        public float MinimumX = -90F;
14        public float MaximumX = 90F;
15        public bool smooth;
16        public float smoothTime = 5f;
17
18
19        private Quaternion m_CharacterTargetRot;
20        private Quaternion m_CameraTargetRot;
21        
22
23        public void Init(Transform character, Transform camera)
24        {
25            m_CharacterTargetRot = character.localRotation;
26            m_CameraTargetRot = camera.localRotation;
27        }
28
29
30        public void LookRotation(Transform character, Transform camera)
31        {
32            float yRot = CrossPlatformInputManager.GetAxis("Mouse X") * XSensitivity;
33            float xRot = CrossPlatformInputManager.GetAxis("Mouse Y") * YSensitivity;
34
35            m_CharacterTargetRot *= Quaternion.Euler (0f, yRot, 0f);
36            m_CameraTargetRot *= Quaternion.Euler (-xRot, 0f, 0f);
37
38            if(clampVerticalRotation)
39                m_CameraTargetRot = ClampRotationAroundXAxis (m_CameraTargetRot);
40
41            if(smooth)
42            {
43                character.localRotation = Quaternion.Slerp (character.localRotation, m_CharacterTargetRot,
44                    smoothTime * Time.deltaTime);
45                camera.localRotation = Quaternion.Slerp (camera.localRotation, m_CameraTargetRot,
46                    smoothTime * Time.deltaTime);
47            }
48            else
49            {
50                character.localRotation = m_CharacterTargetRot;
51                camera.localRotation = m_CameraTargetRot;
52            }
53
54           
55        }
56
57        Quaternion ClampRotationAroundXAxis(Quaternion q)
58        {
59            q.x /= q.w;
60            q.y /= q.w;
61            q.z /= q.w;
62            q.w = 1.0f;
63
64            float angleX = 2.0f * Mathf.Rad2Deg * Mathf.Atan (q.x);
65
66            angleX = Mathf.Clamp (angleX, MinimumX, MaximumX);
67
68            q.x = Mathf.Tan (0.5f * Mathf.Deg2Rad * angleX);
69
70            return q;
71        }
72
73    }
74}
75

#試したことなど
joystickはこちらのサイトを参考に作成しました。最後のスクリプトだけ変えています。いろんなサイトを調べて見たのですが、こちらやこちらのサイトなど。MouseLookをJoystickに対応させれれば、とも思いましたけど、やり方がわかりません。もっと簡単にできるものだと思っていましたが想像以上に時間を使ってしまっています。どなたかお願いします。
#環境
MacOs Unity2018.1.0f2