using System;
using UnityEngine;
using UnityEngine.Playables;
using UnityEngine.Timeline;

public class ThrowPositionMixerBehaviour : PlayableBehaviour
{
    public override void ProcessFrame(Playable playable, FrameData info, object playerData)
    {
        var trackBinding = playerData as GameObject;

        if (!trackBinding)
            return;
        
        var trans = trackBinding.transform;

        var inputCount = playable.GetInputCount();

        for (var i = 0; i < inputCount; i++)
        {
            var inputPlayable = (ScriptPlayable<ThrowPositionBehaviour>)playable.GetInput(i);
            var input = inputPlayable.GetBehaviour();

            var positionTimeClipTime = inputPlayable.GetTime();
            var positionTimeClipTimeMax = inputPlayable.GetDuration();

            if (positionTimeClipTime > 0 && positionTimeClipTime + 0.01f < positionTimeClipTimeMax)
            {
                var rate = positionTimeClipTime / positionTimeClipTimeMax;
                var pos = Vector3.Lerp(input.startPos, input.endPos, (float)rate);
                trans.localPosition = pos;
            }
        }
    }
}