using UnityEngine;
using UnityEngine.InputSystem;

public class AnimationStateController : MonoBehaviour
{
    Animator animator;
    float velocity = 0.0f;
    public float acceleration = 0.3f;
    public float deceleration = 0.5f;
    int VelocityHash;

    void Start()
    {
        animator = GetComponent<Animator>();
        
        VelocityHash = Animator.StringToHash("Blend");
    }

    void Update()
    {
        var keyboard = Keyboard.current;
        if (keyboard == null) return;

        bool forwardPressed = keyboard.wKey.isPressed;
        bool runPressed = keyboard.leftShiftKey.isPressed;

        if (forwardPressed)
        {
            velocity += Time.deltaTime * acceleration;
        }

        if (!forwardPressed && velocity > 0.0f)
        {
            velocity -= Time.deltaTime * deceleration;
        }

        if (!forwardPressed && velocity < 0.0f)
        {
            velocity = 0.0f;
        }

        animator.SetFloat(VelocityHash, velocity);
    }
}