Sprint Animation Only Playing First Sprite

I'm having a problem with my sprint animation. I have it set up so that there is a trigger linked to the variable "sprint" in my script, which I have set to be active when shift is held down. While it does activate and speeds up the player sprite, it also only plays the first frame of the sprite animation and then switches back to the idle/walk pose. Can someone help me figure this out?

I'm probably doing something wrong with the trigger (first time using them with animations) but can't seem to figure out what I'm doing wrong.

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4.  
5. public class Player : MonoBehaviour {
6.  
7.     private Rigidbody2D myRigidBody;
8.  
9.     private Animator myAnimator;
10.  
11.     [SerializeField]
12.     private float movementSpeed;
13.  
14.     private float sprintSpeed = 8;
15.  
16.     private bool sprint;
17.  
18.     private bool facingRight;
19.  
20.     // Use this for initialization
21.     void Start () {
22.         facingRight = true;
23.         myRigidBody = GetComponent<Rigidbody2D> ();
24.         myAnimator = GetComponent<Animator>();
25.      
26.     }
27.  
28.     // Update is called once per frame
29.     void FixedUpdate () {
30.  
31.         float horizontal = Input.GetAxis ("Horizontal");
32.  
33.         HandleMovement (horizontal);
34.  
35.         Flip (horizontal);
36.  
37.         if (Input.GetKey (KeyCode.LeftShift)) {
38.  
39.             sprint = true;
40.  
41.             movementSpeed = sprintSpeed;
42.  
43.             HandleSprint ();
44.         } else {
45.             movementSpeed = 4;
46.             sprint = false;
47.         }
48.     }
49.  
50.     private void HandleMovement(float horizontal){
51.  
52.  
53.         myRigidBody.velocity = new Vector2 (horizontal * movementSpeed, myRigidBody.velocity.y);
54.  
55.         myAnimator.SetFloat ("speed", Mathf.Abs(horizontal));
56.          
57.     }
58.  
59.     private void HandleSprint(){
60.  
61.         if (sprint) {
62.             myAnimator.SetTrigger ("sprint");
63.         }
64.  
65.     }
66.  
67.     private void Flip(float horizontal){
68.  
69.         if (horizontal > 0 && !facingRight || horizontal < 0 && facingRight) {
70.  
71.             facingRight = !facingRight;
72.  
73.             Vector3 theScale = transform.localScale;
74.  
75.             theScale.x *= -1;
76.  
77.             transform.localScale = theScale;
78.         }
79.     }
80. }
81.  

 

We probably need to see a screen dump of your Animator setup as well.

 

It would help if you showed what your transition conditions were, but regardless I would suggest making the run condition a bool instead because running is a true/false type of decision, not a trigger.

 

Okay, I set it up as a bool and I also muted the transition into itself (don't think I needed that for the way I was doing it, but friend recommended it) Setting it to a bool seems to have fixed the issue where it doesn't play all the way, but now it won't stop playing after shift is released.

 

Finally got it. Here's the updated script for a viewers future reference.

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4.  
5. public class Player : MonoBehaviour {
6.  
7.     private Rigidbody2D myRigidBody;
8.  
9.     private Animator myAnimator;
10.  
11.     [SerializeField]
12.     private float movementSpeed;
13.  
14.     private float sprintSpeed = 16;
15.  
16.     private bool sprint;
17.  
18.     private bool facingRight;
19.  
20.     // Use this for initialization
21.     void Start () {
22.         facingRight = true;
23.         myRigidBody = GetComponent<Rigidbody2D> ();
24.         myAnimator = GetComponent<Animator>();
25.        
26.     }
27.    
28.     // Update is called once per frame
29.     void FixedUpdate () {
30.  
31.         float horizontal = Input.GetAxis ("Horizontal");
32.  
33.         HandleMovement (horizontal);
34.  
35.         Flip (horizontal);
36.  
37.         if (Input.GetKey (KeyCode.LeftShift) && horizontal != 0) {
38.  
39.             movementSpeed = sprintSpeed;
40.  
41.             myAnimator.SetBool ("sprint", true);
42.  
43.             //HandleSprint ();
44.         } else {
45.             movementSpeed = 4;
46.             myAnimator.SetBool ("sprint", false);
47.         }
48.        
49.        
50.     }
51.  
52.     private void HandleMovement(float horizontal){
53.  
54.  
55.         myRigidBody.velocity = new Vector2 (horizontal * movementSpeed, myRigidBody.velocity.y);
56.    
57.         myAnimator.SetFloat ("speed", Mathf.Abs(horizontal));
58.            
59.     }
60.  
61.     private void Flip(float horizontal){
62.  
63.         if (horizontal > 0 && !facingRight || horizontal < 0 && facingRight) {
64.  
65.             facingRight = !facingRight;
66.  
67.             Vector3 theScale = transform.localScale;
68.  
69.             theScale.x *= -1;
70.  
71.             transform.localScale = theScale;
72.         }
73.     }
74. }
75.