example controller which works with mecanim

spine_controller.cs

using UnityEngine;
using System.Collections;

[RequireComponent(typeof(Rigidbody2D))]
public class KevinController : MonoBehaviour {
	public float maxSpeed = 10f;
	public float groundCheckRadius = 0.1f;
	public LayerMask groundCechkLayerMask;
	public float jumpForce = 100f;
	public float runJumpForce = 200f;
	public Vector2 longJumpForce = new Vector2(100,100);
	public static int idleState = Animator.StringToHash("Base Layer.Idle");
	public static int jumpLanding = Animator.StringToHash("Base Layer.jumpLanding");
	public static int jumping = Animator.StringToHash("Base Layer.jumping");
	float runSpeedRatio = 2f;
	bool facedRight = false;
	Animator animator;
	bool isGrounded;

	void Start(){
		animator = GetComponent<Animator>();
	}
	AnimatorStateInfo currentState;
	bool longJumpInProgress = false;
	void Update(){
		currentState = animator.GetCurrentAnimatorStateInfo(0);
		float vertical = Input.GetAxis("Vertical");
		if (isGrounded && Input.GetButtonDown("Jump")){
			if (vertical < 0){
				animator.SetTrigger("roll");
			} else {
				if (currentState.nameHash == idleState){
					longJumpInProgress = true;
					animator.SetTrigger("longJump");
				} else {
					isGrounded = false;
					animator.SetBool("isGrounded", isGrounded);
					if (Input.GetKey(KeyCode.LeftShift) )
						rigidbody2D.AddForce(new Vector2(0,runJumpForce));
					else
						rigidbody2D.AddForce(new Vector2(0,jumpForce));
					animator.CrossFade(jumping,0.1f,0,0.1f);
				}
			}
		}

		if (Input.GetButtonUp("Jump") && longJumpInProgress){
			Vector2 force = facedRight ? longJumpForce : new Vector2( -longJumpForce.x, longJumpForce.y);
			isGrounded = false;
			animator.SetBool("isGrounded", isGrounded);
			rigidbody2D.AddForce(force);
			longJumpInProgress  = false;
		}

		if (Input.GetButtonDown("Fire1"))
			animator.SetTrigger("Fire1");
		if (Input.GetButton("Fire3"))
			animator.SetTrigger("Fire3");

		animator.SetBool("block", Input.GetButton("Fire2"));
	}




	float moveX, moveXAbs;
	AnimationState animationState;
	void FixedUpdate () {
		isGrounded = Physics2D.OverlapCircle(transform.position , groundCheckRadius, groundCechkLayerMask);
		animator.SetBool("isGrounded", isGrounded);

		moveX = Input.GetAxis("Horizontal");
		if (Input.GetKey(KeyCode.LeftShift) )
			moveX *= runSpeedRatio;
		moveXAbs = Mathf.Abs(moveX);
		animator.SetFloat("moveXAbs", moveXAbs);
		if (isGrounded)
			rigidbody2D.velocity  = new Vector2(moveX * maxSpeed, rigidbody2D.velocity.y);
		if ((moveX > 0 && !facedRight) || (moveX < 0 && facedRight))
			flip();

		animator.SetFloat("verticalSpeed", rigidbody2D.velocity.y);
	}

	void flip(){
		Vector3 scale = transform.localScale;
		scale.x *= -1;
		transform.localScale = scale;
		facedRight = !facedRight;
	}
}