Triggering from code

Learn to trigger animations from code with Animator.SetTrigger.

Triggering Animations from Code

The Animator.SetTrigger() method activates a Trigger parameter defined in the Animator Controller from code. This can satisfy the corresponding transition condition and start an animation. The parameter name must match the name in the controller.

animator.SetTrigger("takeDamage");

Controlling States with SetBool

The SetBool() method changes the value of a Bool parameter in the Animator Controller. For example, you can enable a Bool parameter representing a damaged state when a character takes damage. The animation transition uses a condition linked to this parameter.

animator.SetBool("isDamaged", true);

Exercise Control the Damage Animation

Set the isDamaged Bool parameter to true in the TakeDamage method. Then set it to false in the ClearDamage method. This allows you to control the character's damaged state through code.

Show example solution

using UnityEngine;

public class DamageAnimation : MonoBehaviour
{
    public Animator animator;

    public void TakeDamage()
    {
        animator.SetBool("isDamaged", true);
    }

    public void ClearDamage()
    {
        animator.SetBool("isDamaged", false);
    }
}

Test yourself

Which method resets a Trigger parameter to prevent the animation event from being triggered again?
- ResetTrigger()
- SetFloat()
- GetBool()
- PlayClip()
Show answer

ResetTrigger() — ResetTrigger() resets the specified Trigger parameter.

Reset a Trigger

animator.____("takeDamage");

Show answer

animator.ResetTrigger("takeDamage");

Match Animation Control from Code

SetTrigger()

Activates a Trigger parameter
ResetTrigger()

Resets a Trigger parameter
SetBool()

Changes value of a Bool parameter
Animator değişkeni

Provides access to Animator component

Next lesson: Summary - Animation

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