Unity 5 - Playing animation from AnimationState forwards and backwards has no effect

I have a single default state in my animation controller named SpikeBrightFloor.



This animation state has two frames which I wish to either play forwards and stop or play backwards and stop depending on a flag called isDeadly.

This is what I am currently doing:

Code (csharp):

1.  
2.         var animator = GetComponent<Animator>();
3.         var info = animator.GetCurrentAnimatorStateInfo(0); // Only one state
4.  
5.         isDeadly = !isDeadly;
6.  
7.         if (isDeadly)
8.         {
9.             // Play forwards
10.             animator.playbackTime = 0f;             // Beginning of state
11.             animator.speed = 0.1f;
12.             animator.Play("SpikedBrightFloor");
13.         }
14.         else
15.         {
16.             // Play backwards
17.             animator.playbackTime = info.length;    // End of state
18.             animator.speed = -0.1f;
19.             animator.Play("SpikedBrightFloor");
20.         }

I can get the state and I can get the length of the state and I can set the animator parameters but the animation never seems to play. What is going wrong?

 

Solved:

Set animator speed to 0f when initialising the script.

Code (csharp):

1.  
2.         var animator = GetComponent<Animator>();
3.         animator.speed = 0f;