Adding the animation is not working! 2d .

I watched the 2d character controller video from the learn section and completed it , now i got a crouch animation , actually I dont know scripting . I tried many ways to do it but some errors will come .

So i have a crouch and crouch walking animation , so if i press the c button , the crouch animation will play and if I press the walk right/left button (a,d) the crouch walking animation goto that position . So can you explain me what to do , I mean not only the script , also explain me what i have to do .


Heres the script i use to run the character .

Code (CSharp):

1.  
2. using UnityEngine;
3. using System.Collections;
4.  
5. public class RobotControllerScript : MonoBehaviour {
6.  
7.     public float maxSpeed = 10.0f;
8.     bool facingRight = true;
9.     Animator anim;
10.  
11.     public bool grounded = false;
12.     public Transform groundCheck;
13.     float groundRadius = 0.2f;
14.     public LayerMask whatIsGround;
15.     public float jumpForce = 700f;
16.  
17.     // Use this for initialization
18.     void Start () {
19.         anim = GetComponent<Animator> ();
20.     }
21.    
22.     // Update is called once per frame
23.     void FixedUpdate () {
24.         grounded = Physics2D.OverlapCircle (groundCheck.position, groundRadius, whatIsGround);
25.         anim.SetBool ("Ground", grounded);
26.         anim.SetFloat ("vSpeed", rigidbody2D.velocity.y);
27.  
28.         float move = Input.GetAxis ("Horizontal");
29.         anim.SetFloat ("Speed", Mathf.Abs(move));
30.  
31.         rigidbody2D.velocity = new Vector2 (move * maxSpeed, rigidbody2D.velocity.y);
32.  
33.         if (move > 0 && !facingRight)
34.             Flip ();
35.         else if (move < 0 && facingRight)
36.             Flip ();
37.     }
38.  
39.     void Update()
40.     {
41.         if (grounded && Input.GetKey (KeyCode.Space))
42.         {
43.             anim.SetBool("Ground", false);
44.             rigidbody2D.AddForce(new Vector2(0, jumpForce));
45.         }
46.     }
47.  
48.     void Flip()
49.     {
50.         facingRight = !facingRight;
51.         Vector3 theScale = transform.localScale;
52.         theScale.x *= -1;
53.         transform.localScale = theScale;
54.     }
55. }
56.  
57.  

Would be appreciated if you help me .

 

Bump

 

Ok i made a script , now the problem i press the jump key ( space button ) 3 times it jumps 3 times , if i press it 100 times , it jumps 100 times , i need to jump only 2 times , how can i fix it.