#if INVECTOR_PLAYABLESANIMATOR
using InvectorCore;
using UnityEngine;

namespace Invector.vMelee
{
    /// <summary>
    /// Holds the rolled attack index for the PlayablesAnimator and exposes it as a PDM condition,
    /// replacing the <c>animator.SetInteger("RandomAttack", ...)</c> parameter the Animator
    /// Controller version of <see cref="vRandomAttackBehaviour"/> writes.
    /// </summary>
    /// <remarks>
    /// A PDM context is rebuilt from its providers every tick, so a state behaviour cannot write a
    /// value into it directly and expect it to survive. The value has to live on a component that
    /// the context collects from, which is what this is. Attach it next to the PlayablesAnimator and
    /// reference <c>vPlayablesRandomAttack.RandomAttack</c> in the attack rows' conditions.
    /// </remarks>
    [vClassHeader("Playables Random Attack", "Rolled by vRandomAttackBehaviourPDM on state enter.")]
    public class vPlayablesRandomAttack : vMonoBehaviour
    {
        [SerializeField, vReadOnly] private int randomAttack;

        [ExposeCondition("Index rolled by vRandomAttackBehaviourPDM when an attack state starts.")]
        public float RandomAttack => randomAttack;

        public void Roll(int attackCount)
        {
            randomAttack = attackCount > 0 ? Random.Range(0, attackCount) : 0;
        }
    }
}
#endif