Character Controller Move Backwards

Hey there everyone,

I am just working on a game which has kind of dark souls controls. Currently everything is working fine, you can run around, rotate the camera independently and you can use the shoulder button on the controller to like focus in a direction. In this state, the player is able to run forward, backward and sideways. And here is the problem. In the code below, you will see, that I am moving the character forward with the speed float. But as it can never be negative in my code, my character does not want to go backwards. If I make it negative, it will fly up because of negative y floats on the moveDirection variable.

Code (CSharp):

1. using UnityEngine;
2. using System.Collections;
3.  
4. public class AnimatorScript : MonoBehaviour {
5.  
6.     private CharacterController controller;
7.     Animator anim;
8.     public float h ;
9.     public float v ;
10.     public float speed ;
11.     public float runSpeed ;
12.     public float walkSpeed ;
13.     public float jumpSpeed ;
14.     public float gravity ;
15.     public float minAngle = 1; // min angle to detect rotation since last frame
16.     private Vector3 oldFwd ;
17.     private GameObject mainCamera ;
18.     private Vector3 moveDirection = Vector3.zero;
19.     public float maxSpeed ;
20.     private float direction ;
21.     private float strafing ;
22.     private float lockRotation = 0.0f;
23.     float horizontal;
24.     float vertical;
25.     private bool jump;
26.    
27.     // Use this for initialization
28.     void Start () {
29.         anim = GetComponent<Animator>();
30.         controller = GetComponent<CharacterController> ();
31.         mainCamera = Camera.main.gameObject;
32.  
33.         mainCamera.GetComponent<SmoothFollow>().enabled = false ;
34.     }
35.    
36.     // Update is called once per frame
37.     void Update () {
38.                 // Is the controller on the ground?
39.         if (controller.isGrounded)
40.         {
41.             jump = false;
42.             // Assigning Translation Controls
43.             moveDirection = new Vector3(Input.GetAxis("HorizontalMove") , 0, Input.GetAxis("VerticalMove"));
44.  
45.             // Align forward vector of movement and camera. Turn it off when a camera isn't assigned.
46.             moveDirection = Camera.main.transform.rotation * moveDirection;
47.  
48.             // Rotation parameters based on stick direction
49.             if(moveDirection.sqrMagnitude > 0.01f) {
50.                 transform.rotation = Quaternion.Lerp(transform.rotation, Quaternion.LookRotation(moveDirection), Time.deltaTime * 5);
51.             }
52.  
53.             // Calculate controller x and y = no slowing down while running curves
54.             if(Mathf.Abs(Input.GetAxis("HorizontalMove")) > 0.01f || Mathf.Abs(Input.GetAxis("VerticalMove")) > 0.01f){
55.                 if(speed < maxSpeed ){
56.                     speed = (Mathf.Abs(Input.GetAxis("HorizontalMove")) + Mathf.Abs(Input.GetAxis("VerticalMove"))) ;
57.                 } else {
58.                     speed = maxSpeed ;
59.                 }
60.             }else{
61.                 if(speed > 0.1f)speed -= 2f * Time.deltaTime;
62.             }
63.  
64.             if(anim.GetBool ("Weapon") == true){
65.                 transform.rotation = mainCamera.transform.rotation ;
66.             }
67.  
68.             // Check rotation
69.             Vector3 curForw = transform.forward ;
70.             Vector3 movForw = moveDirection ;
71.             Vector3 directionVect = Vector3.Cross(curForw, movForw);
72.             direction = directionVect.y ;
73.  
74.             CheckAnimation ();
75.         }
76.         // Applying gravity variable to the character controller when jumping
77.         moveDirection.y -= gravity * Time.deltaTime;
78.  
79.         // Applying move direction to the character controller
80.         controller.Move (moveDirection * speed * Time.deltaTime);
81.     }
82.  
83.     void LateUpdate(){
84.         // Lock rotations x and z to stop tilting.
85.         controller.transform.rotation = Quaternion.Euler(lockRotation, transform.rotation.eulerAngles.y, lockRotation);
86.     }
87.     void CheckAnimation(){
88.         if (Input.GetAxis ("HorizontalMove") > 0.01f || Input.GetAxis ("VerticalMove") > 0.01f
89.             || Input.GetAxis ("HorizontalMove") < -0.01f || Input.GetAxis ("VerticalMove") < -0.01f) {
90.             maxSpeed = runSpeed;
91.             anim.SetBool("RunCheck", true);
92.         } else {
93.             maxSpeed = 0 ;
94.             anim.SetBool("RunCheck", false);
95.         }
96.  
97.         //Roll
98.         if (Input.GetButtonUp("Jump"))
99.         {
100.             //moveDirection.y = jumpSpeed;
101.             moveDirection.z = jumpSpeed ;
102.             anim.SetBool ("jumpHash", true);
103.             jump = true;
104.         } else {
105.             jump = false ;
106.             anim.SetBool ("jumpHash", false);
107.         }
108.                
109.         if (Input.GetKeyUp (KeyCode.E)) {
110.             anim.SetTrigger ("pUpLowHash");
111.         }
112.         if (Input.GetKeyUp (KeyCode.R)) {
113.             anim.SetTrigger ("pUpHighHash");
114.         }
115.  
116.         if (Input.GetAxis ("Weapon") < 0) {
117.             anim.SetBool ("Weapon", true);
118.             SetAnimation(speed, 0, direction);
119.         }
120.         if (Input.GetAxis ("Weapon") > 0) {
121.             anim.SetBool ("Weapon", false);
122.             SetAnimation(speed, direction, 0);
123.         }
124.     }
125.  
126.     void SetAnimation(float spd, float drctin, float strf){
127.         anim.SetFloat ("Speed", spd);
128.         anim.SetFloat ("Direction", drctin);
129.         anim.SetFloat ("Strafe", strf);
130.     }
131. }
132.  

I hope you guys can help me somehow Thanks in advance!

 

Nothing over here? Damn, did not think, this is such a big issue

 

Is there anything, you need, to answer this question? Did I miss something or is it just so easy?