Parameters

Learn to trigger transitions with Bool, Trigger and Float parameters.

Bool, Float, and Trigger Parameters

Animator Controller parameters control transition conditions using different data types. Bool represents two-state values, Float represents numeric values, and Trigger represents one-time events. Choose the parameter type that matches the animation behavior.

// Bool: isGrounded
// Float: verticalSpeed
// Trigger: takeDamage

Connecting Parameters to Transition Conditions

You can use parameters created in the Parameters tab of the Animator window as Transition conditions. For example, a verticalSpeed value falling below a certain threshold can trigger a transition to a falling animation. Multiple conditions can also be defined for the same transition.

// verticalSpeed < 0
// isGrounded == false

Exercise Set the Vertical Speed Parameter

Set the value of the Float parameter named verticalSpeed on the Animator component. Use a vertical speed value and then print the assigned value to the console.

Show example solution

using UnityEngine;

public class VerticalSpeed : MonoBehaviour
{
    public Animator animator;
    public float currentVerticalSpeed;

    void Update()
    {
        animator.SetFloat("verticalSpeed", currentVerticalSpeed);
        Debug.Log("Dikey hız güncellendi: " + currentVerticalSpeed);
    }
}

Test yourself

Which parameter type is suitable for tracking whether a character is touching the ground?
- AnimationClip
- Bool
- Float
- Trigger
Show answer

Bool — Bool is used to track whether a character is grounded as true or false.

Event Parameter

Tek seferlik bir animasyon olayını temsil etmek için ____ parametresi kullanılır.

Show answer

Tek seferlik bir animasyon olayını temsil etmek için Trigger parametresi kullanılır.

Match Parameter Use Cases

isGrounded

Indicates if character is grounded
verticalSpeed

Stores vertical movement speed
takeDamage

Triggers a damage animation event
Threshold

Boundary value for a numeric condition

Next lesson: Triggering from code

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