Simple Mecanim Curve-Based Event System (Unity3D)

using UnityEngine;
using System.Collections.Generic;

public class AnimatorEventSystem {
    public float triggerTheshold = 0.8f; // event curve will never reach 1

    private Animator avatar;
    private Dictionary<int, bool> eventState;

    public AnimatorEventSystem(Animator anim) {
        avatar = anim;
        eventState = new Dictionary<int, bool>();
    }

    public void Update() {
        // proceed events
        if (avatar) {
            foreach (KeyValuePair<int, bool> e in eventState) {
                if (avatar.GetFloat(e.Key) < triggerTheshold) {
                    eventState[e.Key] = false;
                }
            }
        }
    }

    public bool CheckEvent(int hash) {
        if (avatar) {
            if (!eventState.ContainsKey(hash)) {
                eventState.Add(hash, false);
            }
            bool result = (!eventState[hash] && (avatar.GetFloat(hash) > triggerTheshold));
            if (result)
                eventState[hash] = true;
            return result;
        } else {
            return false;
        }
    }
}