Animation triggers doesn't work as expected

Question

Hello, my team and I are using animations triggers to handle the animation transition in a top-down 2d game. We have a problem with the animation transitions, sometimes the tranitions between directions work fine but sometimes the wrong animations are triggered, even though when we have debugged the code, (for example Debug.Log("WalkRight") where it should be triggering this particular animation), the code seem to work as it should be. So I'm pretty sure the bug is in the transitions but we couldn't find it. This is the animation controller we made for the enemy:

alt text

This is an example of a transition: alt text

And this is the code we use to decide which animation to trigger:

 void ManageAnimation()
     {
         int Q = FindQuarter(moveDirection);
         if (Q == 1)
         {
             if (moveDirection.x > (moveDirection.y + 0.5f))
             {
                 anim.SetTrigger("EnemyWalkRight");
             }
             else
             {
                 anim.SetTrigger("EnemyWalkUp");
 
             }
             
         }
         else if (Q == 2)
         {
             if (Mathf.Abs(moveDirection.x) > moveDirection.y + 0.5f)
             {
                 anim.SetTrigger("EnemyWalkLeft");
             }
             else
             {
                 anim.SetTrigger("EnemyWalkUp");
             }
                 
         }
         else if (Q == 3)
         {
             if (Mathf.Abs(moveDirection.x) > Mathf.Abs(moveDirection.y) + 0.5f)
             {
                 anim.SetTrigger("EnemyWalkLeft");
             }
             else
                 anim.SetTrigger("EnemyWalkFront");
         }
         else if (Q == 4)
         {
             if (moveDirection.x > Mathf.Abs(moveDirection.y) + 0.5f)
             {
                 anim.SetTrigger("EnemyWalkRight");
                 
             }
             else
                 anim.SetTrigger("EnemyWalkFront");
         }
     }
     int FindQuarter(Vector2 direction)
     {   // Finds the quarter that the end of the direction is in.
         if (direction.x > 0 && direction.y > 0)
             return 1;
         else if (direction.x < 0 && direction.y > 0)
             return 2;
         else if (direction.x < 0 && direction.y < 0)
             return 3;
         else if (direction.x > 0 && direction.y < 0)
             return 4;
         return 0; // it is on one of the axis.
     }

Can anyone tell what can be the problem?

Answer 1

Answer by digitj · Apr 21 at 09:39 AM

Just use blend trees

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Answer 2

Answer by Avexpert · Apr 21 at 09:46 AM

Try not to use SetTrigger. Instead, use SetBool for the bool parameters that you set in your animator. Don't forget to assign these bools into your transition lines. Like ;

anim.SetBool("isWalking",true);

I also suggest you to watch some tutorials about State Pattern. By that way the process will be more accurate and less painfull.

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Animation triggers doesn't work as expected

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